Cumagitu ajah, kamu bisa copy paste kode diatas, dan jika beruntung kamu berhasil membuat notifikasi. Untuk membuat notifikasi di Android saya sarankan buatlah event dengan button atau jika mau sedikit report buatlah dengan class services, niscaya hasilnya lebih baik. Sekian gaes, semoga bermanfaat ya. Haisemuanya, nama saya Abdul Aziz Ahwan dari Indonesia dan selamat datang kembali dengan saya di YouTube. Hari ini kita akan berbicara tentang cara memecahkan tidak dapat menginstal HAXM di Android Studio 3.0. Tetapi sebelum kita pergi ke tutorial jangan lupa untuk mengklik tombol subcribe untuk membuat saluran ini tumbuh. Methodini akan memanggil onStop dan onDestroy untuk fragment sebelumnya lalu membuat fragment baru di container tadi. Cara ini baik karena kita bisa membersihkan memori dan membuat UI lebih smooth. Namun, dalam banyak kasus kita ingin akan fragment-fragment tersebut tetap ada di container dengan menampilkannya dengan mengatur visibility-nya 1Akun developer sebaiknya diisi maksimal 30 aplikasi. Unpublish (tidak menayangkan di play store) aplikasi yang sudah tidak dikembangkan atau tidak dipakai lagi. Karena aplikasi yang sudah tidak diurus bisa-bisa tiba-tiba dianggap melanggar kebijakan, dan jika tidak segera ditindaklanjuti maka akun developer Anda bisa dihapus (termination). TutorialMembuat Aplikasi Hitung Luas Segitiga Menggunakan Aplikasi Android Studio. 1. Creat New Project, kemudian buat Application name nya Segitiga, sesuaikan sesuai keinginan anda. kemudian klik Next. 2. Sekarang pilih Target Android Devices, yaitu pada device apa aplikasi ini akan di jalankan. Nah disini kita membuat aplikasi untuk Phone kata sindiran buat bos yang tidak adil. Notifikasi memberikan permakluman singkat dan tepat waktu tentang peristiwa di aplikasi Anda saat sedang bukan digunakan. Halaman ini menunjukkan kepada Anda cara membuat notifikasi dengan bermacam-macam fitur kerjakan Android Api level 14 dan versi yang lebih mentah. Untuk pengantar cara notifikasi muncul di Android, tatap Ringkasan Notifikasi. Untuk kode contoh yang menggunakan notifikasi, lihat Contoh Notifikasi Android. Perhatikan bahwa kode pada halaman ini menggunakan NotificationCompat Jago merah dari Android support library. API tersebut memungkinkan Anda untuk menambahkan fitur yang tersaji hanya sreg versi Android yang lebih yunior bertepatan patuh mengasihkan kompatibilitas ke Android API level 14. Namun, bilang fitur baru seperti tindakan balas inline mengakibatkan tidak adanya pengoperasian pada versi yang lebih lama. Menambahkan support library Sungguhpun sebagian lautan project yang dibuat dengan Android Studio melibatkan ketergantungan nan diperlukan kerjakan menggunakan NotificationCompat, Engkau harus memverifikasi bahwa file level modul mengikutsertakan kecanduan berikut dependencies { implementation " } Notifikasi kerumahtanggaan kerangka yang paling mendasar dan ringkas juga dikenal perumpamaan rencana yang diciutkan menampilkan ikon, judul, dan bilang kecil referensi konten. Di bagian ini, Anda akan mempelajari cara membuat notifikasi yang boleh diklik pengguna kerjakan meluncurkan aktivitas di aplikasi Sira. Gambar 1. Notifikasi dengan kepala karangan dan teks Bikin detail sepenuhnya tentang setiap adegan dari notifikasi, baca ilmu urai notifikasi. Menetapkan konten notifikasi Buat memulai, Beliau perlu menetapkan konten dan sungai buatan notifikasi memperalat alamat Contoh berikut menunjukkan cara membuat notifikasi dengan Ikon mungil, yang ditetapkan setSmallIcon Ini adalah satu-satunya konten yang bisa dilihat pengguna nan diperlukan. Tajuk, yang ditetapkan setContentTitle Teks isi, nan ditetapkan setContentText. Prioritas notifikasi, yang ditetapkan setPriority. Prioritas menentukan seberapa mengganggu notifikasi lega Android dan varian yang lebih lama. Untuk Android dan versi nan bertambah mentah, Beliau harus menetapkan fungsi saluran yang ditunjukkan di bagian selanjutnya. Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitletextTitle .setContentTexttextContent .setPriority Java builder = new CHANNEL_ID .setSmallIcon .setContentTitletextTitle .setContentTexttextContent .setPriority Perhatikan bahwa konstruktor mengharuskan Anda menerimakan ID saluran. Ini diperlukan lakukan kompatibilitas dengan Android Api level 26 dan versi yang makin baru, tetapi diabaikan oleh versi yang lebih lama. Secara default, konten teks notifikasi dipotong seharusnya pas n domestik satu ririt. Jika mencitacitakan notifikasi lebih panjang, Anda boleh mengaktifkan notifikasi nan bisa diperluas dengan menambahkan template kecenderungan menggunakan setStyle. Misalnya, kode berikut akan takhlik wilayah teks yang lebih luas Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Much longer text that cannot fit one line..." .setStyle .bigText"Much longer text that cannot fit one line..." .setPriority Java builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Much longer text that cannot fit one line..." .setStylenew .bigText"Much longer text that cannot sehat one line..." .setPriority Bagi keterangan gaya notifikasi besar enggak seutuhnya, terdaftar cara menambahkan rangka dan yuridiksi pemutaran media, lihat Membuat Notifikasi dengan Detail yang Dapat Diperluas. Menciptakan menjadikan terusan dan menetapkan kepentingannya Sebelum dapat menayangkan notifikasi di Android dan versi yang bertambah plonco, Anda harus mendaftarkan parit notifikasi aplikasi Anda ke sistem dengan menyinambungkan instance NotificationChannel ke createNotificationChannel. Dengan begitu, kode berikut akan diblokir maka dari itu suatu kondisi pada versi SDK_INT Kotlin private fun createNotificationChannel { // Create the NotificationChannel, but only on API 26+ because // the NotificationChannel class is new and not in the support library if >= { val name = getString val descriptionText = getString val importance = val channel = NotificationChannelCHANNEL_ID, name, importance.apply { description = descriptionText } // Register the channel with the system val notificationManager NotificationManager = getSystemService as NotificationManager } } Java private void createNotificationChannel { // Create the NotificationChannel, but only on Jago merah 26+ because // the NotificationChannel class is new and not in the support library if >= { CharSequence name = getString String description = getString int importance = NotificationChannel channel = new NotificationChannelCHANNEL_ID, name, importance; // Register the channel with the system; you can't change the importance // or other notification behaviors after this NotificationManager notificationManager = getSystemService } } Karena harus membuat susukan notifikasi sebelum memposting notifikasi apa pula di Android dan versi nan kian mentah, Dia harus menjalankan kode ini segera setelah aplikasi Anda dimulai. Aman bagi memanggilnya iteratif kali karena membuat saluran notifikasi yang terserah tidak akan menjalankan operasi barang apa pun. Perhatikan bahwa konstruktor NotificationChannel memerlukan importance, menunggangi salah satu konstanta dari class NotificationManager. Parameter ini menentukan cara menginterupsi pengguna kerjakan setiap notifikasi yang terdaftar dalam terusan ini—meskipun Anda sekali lagi harus menetapkan prioritas dengan setPriority untuk kontributif Android dan yang lebih lama seperti nan ditunjukkan di atas. Meskipun Anda harus menjadwalkan kepentingan/prerogatif notifikasi sebagaimana yang ditunjukkan di sini, sistem enggak menjamin perilaku pemberitahuan yang akan Engkau dapatkan. Kerumahtanggaan bilang kasus, sistem mungkin mengubah tingkat kepentingan berdasarkan faktor-faktor lain, dan pemakai bisa menentukan ulang tingkat faedah untuk saluran tertentu bilamana saja. Untuk informasi perbedaan tingkat selengkapnya, baca tingkat arti notifikasi. Menetapkan tindakan ketuk notifikasi Setiap notifikasi harus merespons pukulan, lazimnya lakukan mendedahkan aktivitas intern aplikasi Anda yang sesuai dengan notifikasi tersebut. Untuk melakukannya, Anda harus menentukan intent konten nan ditentukan dengan objek PendingIntent dan meneruskannya ke setContentIntent. Cuplikan berikut ini menunjukkan kaidah membuat intent sumber akar untuk membuka aktivitas detik pengguna mengetuk notifikasi Kotlin // Create an explicit intent for an Activity in your app val intent = Intentthis, AlertDetails { flags = or } val pendingIntent PendingIntent = 0, intent, 0 val builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority // Set the intent that will fire when the user taps the notification .setContentIntentpendingIntent .setAutoCanceltrue Java // Create an explicit intent for an Activity in your app Intent intent = new Intentthis, PendingIntent pendingIntent = 0, intent, 0; builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority // Set the intent that will fire when the user taps the notification .setContentIntentpendingIntent .setAutoCanceltrue; Perhatikan kode ini memanggil setAutoCancel yang otomatis menghapus notifikasi saat pemakai mengetuknya. Metode setFlags nan ditunjukkan di atas kontributif menjaga camar duka navigasi yang diharapkan pengguna setelah membuka aplikasi Anda melalui notifikasi. Sekadar, keputusan bikin menggunakannya ataupun bukan gelimbir puas jenis aktivitas segala apa yang Ia mulai, yang mungkin yaitu salah satu dari Aktivitas yang ada unik buat merespons notifikasi. Tak ada alasan buat pengguna untuk mengarah ke aktivitas ini selama eksploitasi aplikasi stereotip. Bintang sartan aktivitas tersebut akan memulai tugas baru dan bukannya ditambahkan ke tugas dan data sebelumnya yang sudah ada plong aplikasi Anda. Ini adalah variasi intent yang dibuat kerumahtanggaan contoh di atas. Aktivitas yang ada dalam alur tuntutan reguler aplikasi Anda. N domestik hal ini, memulai aktivitas harus membuat data sebelumnya sehingga pamrih konsumen bikin pentol Kembali dan Panjat tetap dipertahankan. Kerjakan plural cara internal mengonfigurasi intent notifikasi Kamu seutuhnya, baca Memulai Aktivitas dari Notifikasi. Menyodorkan notifikasi Untuk mewujudkan notifikasi muncul, panggil dahulu teruskan ID eksklusif untuk notifikasi tersebut dan hasil bersumber Paradigma Kotlin with { // notificationId is a unique int for each notification that you must define notifynotificationId, } Java NotificationManagerCompat notificationManager = // notificationId is a unique int for each notification that you must define Ingatlah untuk menyimpan ID notifikasi yang diteruskan ke karena Anda akan memerlukannya nanti jika kepingin memperbarui maupun menghapus notifikasi. Menambahkan tombol tindakan Notifikasi bisa menawarkan sebatas tiga tombol tindakan nan memungkinkan pengguna merespons dengan cepat, sebagaimana menunda pengingat alias tambahan pula menyaingi pesan pustaka. Doang, kenop tindakan tersebut seharusnya bukan menduplikasi tindakan yang dijalankan ketika pengguna mengetuk notifikasi. Gambar 2. Notifikasi dengan satu tombol tindakan Untuk menambahkan tombol tindakan, teruskan PendingIntent ke metode addAction. Cara ini mirip dengan menyiagakan tindakan ketuk default notifikasi, cuma tidak meluncurkan aktivitas, melainkan melakukan kejadian tidak seperti memulai BroadcastReceiver yang akan menjalankan tugas di latar bokong sehingga tindakan tersebut tidak mengganggu permohonan yang mutakadim terbuka. Misalnya, kode berikut ini menunjukkan pendirian mengirim embaran ke penyambut tertentu Kotlin val snoozeIntent = Intentthis, MyBroadcastReceiver { action = ACTION_SNOOZE putExtraEXTRA_NOTIFICATION_ID, 0 } val snoozePendingIntent PendingIntent = 0, snoozeIntent, 0 val builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setContentIntentpendingIntent .addAction getString snoozePendingIntent Java Intent snoozeIntent = new Intentthis, 0; PendingIntent snoozePendingIntent = 0, snoozeIntent, 0; builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setContentIntentpendingIntent .addAction getString snoozePendingIntent; Untuk kabar selengkapnya adapun membentuk BroadcastReceiver buat menjalankan tugas meres pinggul, lihat Panduan siaran. Jika Anda mengepas membuat notifikasi dengan cembul pemutaran media seperti mana untuk menjeda dan menerobos lagu, tatap kaidah membuat notifikasi dengan dominasi media. Menambahkan tindakan balasan simultan Tindakan persangkalan refleks nan diperkenalkan di Android API level 24 memungkinkan pengguna mengegolkan teks langsung ke notifikasi yang dikirimkan ke aplikasi Anda tanpa menyingkapkan aktivitas. Misalnya, Anda boleh menggunakan tindakan pertempuran langsung kerjakan memungkinkan pengguna melawan pesan teks atau memperbarui daftar tugas dari dalam notifikasi. Kerangka 3. Mengetuk tombol “Balas” akan membuka input teks Tindakan balasan langsung muncul misal tombol lampiran dalam notifikasi yang membuka input teks. Detik pengguna radu mengetik, sistem akan melampirkan respons teks ke intent nan mutakadim Anda tentukan untuk tindakan notifikasi dan mengirimkan intent tersebut ke tuntutan Anda. Menambahkan kenop balas Kerjakan membuat tindakan notifikasi yang mendukung tentangan sambil Cak bagi instance yang bisa Beliau tambahkan ke tindakan notifikasi. Konstruktor class ini menerima string yang digunakan sistem misal kunci bakal input referensi. Kemudian, aplikasi perangkat kepal Anda akan memperalat daya tersebut cak bagi mengambil teks berpokok input tersebut. Kotlin // Key for the string that's delivered in the action's intent. private val KEY_TEXT_REPLY = "key_text_reply" var replyLabel String = var remoteInput RemoteInput = { setLabelreplyLabel build } Java // Key for the string that's delivered in the action's intent. private static final String KEY_TEXT_REPLY = "key_text_reply"; String replyLabel = getResources.getString RemoteInput remoteInput = new .setLabelreplyLabel .build; Buat PendingIntent bagi tindakan balasan. Kotlin // Build a PendingIntent for the reply action to trigger. var replyPendingIntent PendingIntent = getMessageReplyIntent Java // Build a PendingIntent for the reply action to trigger. PendingIntent replyPendingIntent = getMessageReplyIntent Perhatian Jika Anda memperalat ulang PendingIntent, konsumen mungkin salah membalas ke percakapan lain karena mereka mengira itu merupakan percakapan yang sama. Ia harus memberikan kode tuntutan nan berlainan untuk setiap percakapan ataupun menyerahkan intent yang tidak menampilkan true saat memanggil equals pada intent balasan dari percakapan lainnya. ID percakapan demap kali diteruskan bak penggalan berpangkal paket suplemen intent, tetapi diabaikan ketika Kamu menjuluki equals. Lampirkan korban RemoteInput ke suatu tindakan memperalat addRemoteInput. Kotlin // Create the reply action and add the remote input. var action = getString replyPendingIntent .addRemoteInputremoteInput .build Java // Create the reply action and add the remote input. action = new getString replyPendingIntent .addRemoteInputremoteInput .build; Terapkan tindakan tersebut sreg notifikasi dan keluarkan notifikasinya. Kotlin // Build the notification and add the action. val newMessageNotification = CHANNEL_ID .setSmallIcon .setContentTitlegetString .setContentTextgetString .addActionaction .build // Issue the notification. with { newMessageNotification } Java // Build the notification and add the action. Notification newMessageNotification = new CHANNEL_ID .setSmallIcon .setContentTitlegetString .setContentTextgetString .addActionaction .build; // Issue the notification. NotificationManagerCompat notificationManager = newMessageNotification; Sistem akan meminang pengguna bagi memasukkan respons ketika mereka menembakkan tindakan notifikasi, seperti nan ditunjukkan plong lembaga 3. Mengambil input pengguna terbit balasan Bikin mengamini masukan pengguna dari UI sambutan notifikasi, panggil yang akan meneruskan Intent nan diterima makanya BroadcastReceiver Anda Kotlin private fun getMessageTextintent Intent CharSequence? { return } Java private CharSequence getMessageTextIntent intent { Bundle remoteInput = if remoteInput != null { return } return null; } Setelah memproses bacaan tersebut, Kamu harus memperbarui notifikasi dengan memanggil menggunakan ID dan tag yang sama jikalau digunakan. Langkah ini diperlukan bakal menyembunyikan UI balasan sedarun dan mengonfirmasi kepada pengguna bahwa pertampikan mereka sudah lalu dituruti dan diproses dengan etis. Kotlin // Build a new notification, which informs the user that the system // handled their interaction with the previous notification. val repliedNotification = CHANNEL_ID .setSmallIcon .setContentTextgetString .build // Issue the new notification. { repliedNotification } Java // Build a new notification, which informs the user that the system // handled their interaction with the previous notification. Notification repliedNotification = new CHANNEL_ID .setSmallIcon .setContentTextgetString .build; // Issue the new notification. NotificationManagerCompat notificationManager = repliedNotification; Saat menangani notifikasi baru ini, gunakan konteks yang diteruskan ke metode onReceive penerima. Beliau juga harus menambahkan penolakan ke bagian bawah notifikasi dengan menjuluki setRemoteInputHistory. Namun, sekiranya ingin menciptakan aplikasi wanti-wanti, Anda harus membuat notifikasi gaya wanti-wanti dan menambahkan wanti-wanti baru ke percakapan. Cak bagi saran notifikasi mulai sejak aplikasi wanti-wanti selengkapnya, tatap praktik terbaik kerjakan aplikasi wanti-wanti. Menambahkan harga diri progres Notifikasi dapat mengikutsertakan penunjuk progres beranimasi yang mengutarakan status operasi nan sedang berjalan kepada pengguna. Gambar 4. Harga diri progres sepanjang dan setelah operasi. Jikalau Dia dapat memperkirakan besaran propaganda yang diolah setiap saat, gunakan bentuk indikator “pasti” seperti yang ditunjukkan lega rancangan 4 dengan menjuluki setProgressmax, progress, false. Indeks purwa adalah berapa skor “keseluruhan” begitu juga 100; yang kedua adalah berapa biji yang ketika ini selesai, dan yang bungsu menunjukkan ini adalah pamor progres pasti. Selagi manuver Anda berlangsung, panggil terus setProgressmax, progress, false dengan poin yang diperbarui buat progress dan keluarkan ulang notifikasi. Kotlin val builder = CHANNEL_ID.apply { setContentTitle"Picture Download" setContentText"Download in progress" setSmallIcon setPriority } val PROGRESS_MAX = 100 val PROGRESS_CURRENT = 0 { // Issue the initial notification with zero progress PROGRESS_CURRENT, false notifynotificationId, // Do the job here that tracks the progress. // Usually, this should be in a // worker thread // To show progress, update PROGRESS_CURRENT and update the notification with // PROGRESS_CURRENT, false; // // When done, update the notification one more time to remove the progress kafe complete" .setProgress0, 0, false notifynotificationId, } Java ... NotificationManagerCompat notificationManager = builder = new CHANNEL_ID; Download" .setContentText"Download in progress" .setSmallIcon .setPriority // Issue the initial notification with zero progress int PROGRESS_MAX = 100; int PROGRESS_CURRENT = 0; PROGRESS_CURRENT, false; // Do the job here that tracks the progress. // Usually, this should be in a // worker thread // To show progress, update PROGRESS_CURRENT and update the notification with // PROGRESS_CURRENT, false; // // When done, update the notification one more time to remove the progress warung kopi complete" .setProgress0,0,false; Di akhir operasi, progress harus seperti max. Beliau dapat membiarkan harga diri progres ditampilkan saat gerakan selesai, maupun menghapusnya. Dalam kasus apa pun, ingatlah untuk memperbarui teks notifikasi kekuatan menyodorkan bahwa persuasi telah selesai. Cak bagi menghapus pamor progres, panggil setProgress0, 0, false. Kerjakan menampilkan prestise progres yang tidak tentu prestise yang tidak menunjukkan persentase radu, panggil setProgress0, 0, true. Kesudahannya yaitu sebuah penanda bersikap setimbang dengan status progres di atas, kecuali prestise progresnya berupa kartun berkelanjutan yang tidak menunjukkan penuntasan prosesnya. Animasi progres akan terus berjalan hingga Anda memanggil setProgress0, 0, false, kemudian perbarui notifikasi tersebut untuk menghapus penanda aktivitas. Ingatlah bakal mengingkari teks notifikasi semoga menunjukkan bahwa aksi radu. Menetapkan kategori untuk seluruh sistem Android menggunakan bilang kategori seluruh sistem yang ditentukan sebelumnya bagi menentukan apakah akan mengganggu pengguna dengan notifikasi yang diberikan atau tak ketika pemakai telah mengaktifkan tendensi Jangan Ganggu. Jika notifikasi Engkau timbrung dalam keseleo satu kategori notifikasi nan sebelumnya ditentukan dalam NotificationCompat—seperti CATEGORY_ALARM, CATEGORY_REMINDER, CATEGORY_EVENT, maupun CATEGORY_CALL—Ia harus mendeklarasikannya serupa itu dengan meneruskan kategori yang sesuai ke setCategory. Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setCategory Java builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setCategory Informasi mengenai kategori notifikasi Anda ini digunakan oleh sistem untuk takhlik keputusan akan halnya mengedepankan notifikasi ketika perangkat n domestik kecondongan Jangan Usik. Semata-mata, Kamu tidak diharuskan untuk menetapkan kategori seluruh sistem dan sebaiknya hanya berbuat ini seandainya notifikasi Ia cocok dengan pelecok satu kategori yang ditentukan dalam NotificationCompat. Menampilkan pesan penting Petisi Anda mungkin perlu mencadangkan pesan penting dan yang sensitif periode, sama dengan panggilan telepon masuk atau alarm yang berdering. N domestik situasi ini, Anda bisa mengaitkan intent layar penuh dengan notifikasi Kamu. Saat notifikasi tersebut dipanggil, konsumen mengawasi riuk suatu dari yang berikut, mengelepai pada pamor kunci perangkat Jika perangkat pengguna terkunci, aktivitas jib penuh muncul, menghampari layar kunci. Jika organ pengguna tidak dikunci, notifikasi muncul dalam bentuk diperluas nan mencengam opsi untuk menangani atau melengahkan notifikasi. Cuplikan kode berikut menunjukkan cara mengaitkan notifikasi Anda dengan intent jib munjung Kotlin val fullScreenIntent = Intentthis, ImportantActivity val fullScreenPendingIntent = 0, fullScreenIntent, var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setFullScreenIntentfullScreenPendingIntent, true Java Intent fullScreenIntent = new Intentthis, PendingIntent fullScreenPendingIntent = 0, fullScreenIntent, builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setFullScreenIntentfullScreenPendingIntent, true; Menetapkan visibilitas layar muslihat Bagi mengontrol tingkat detail nan terlihat privat notifikasi dari layar kunci, panggil setVisibility dan tentukan salah suatu pecah kredit berikut VISIBILITY_PUBLIC menunjukkan konten teoretis notifikasi. VISIBILITY_SECRET lain menampilkan bagian segala sekali lagi semenjak notifikasi ini di jib kunci. VISIBILITY_PRIVATE menunjukkan informasi sumber akar, seperti ikon notifikasi dan kop konten, tetapi ondok konten eksemplar notifikasi. Ketika VISIBILITY_PRIVATE ditetapkan, Anda pula dapat memberikan versi alternatif konten notifikasi yang ondok detail tertentu. Misalnya, aplikasi SMS dapat menyodorkan notifikasi yang menunjukkan Sira memiliki 3 pesan teks mentah, tetapi menyembunyikan isi dan pengirim pesan. Untuk mengasihkan notifikasi alternatif ini, mula-mula-tama untuk notifikasi alternatif dengan begitu juga biasa. Kemudian, lampirkan notifikasi alternatif tersebut ke notifikasi normal dengan setPublicVersion. Namun, pengguna selalu memiliki pengaturan penutup atas apakah notifikasi mereka tampak di layar trik dan lebih lagi boleh mengontrolnya beralaskan susukan notifikasi aplikasi Dia. Mengupdate notifikasi Bakal mengupdate notifikasi ini setelah Kamu mengeluarkannya, panggil lagi, terlampau teruskan notifikasi bersama ID yang seperti mana yang Sira gunakan sebelumnya. Kalau notifikasi sebelumnya sudah ditutup, sebuah notifikasi baru akan dibuat sebagai gantinya. Anda memiliki sortiran bagi menegur setOnlyAlertOnce sehingga notifikasi Anda menginterupsi pemakai dengan suara, getaran, maupun petunjuk visual hanya saat purwa kali notifikasi unjuk dan tidak lakukan pembaruan lain setelahnya. Menghapus notifikasi Notifikasi akan tetap terlihat hingga keseleo satu kejadian berikut terjadi Pengguna menutup notifikasi. Pengguna mengklik notifikasi, dan Anda memanggil setAutoCancel saat selesai membuat notifikasi tersebut. Ia memanggil cancel bagi ID notifikasi tertentu. Metode ini juga menyetip notifikasi yang sedang berjalan. Beliau menyebut cancelAll, yang menghapus semua notifikasi nan dikeluarkan sebelumnya. Jika Dia menetapkan waktu tunggu ketika takhlik notifikasi menggunakan setTimeoutAfter, sistem akan membatalkan notifikasi tersebut setelah durasi nan ditentukan berlalu. Jika diperlukan, Anda dapat membatalkan notifikasi sebelum durasi waktu tunggu nan ditetapkan berpulang. Praktik terbaik untuk petisi wanti-wanti Gunakan praktik terbaik yang terjadwal di sini sebagai wacana cepat tentang apa yang harus dipertimbangkan ketika membuat notifikasi buat aplikasi pesan dan chat Kamu. Menggunakan MessagingStyle Menginjak Android Jago merah level 24, Android menyenggangkan template tendensi notifikasi individual untuk konten aplikasi pesan. Dengan menggunakan class Anda dapat memungkiri beberapa segel yang ditampilkan pada notifikasi, tercantum judul percakapan, pesan apendiks, dan tampilan isi notifikasinya. Cuplikan kode berikut menunjukkan cara menyesuaikan kecondongan notifikasi menggunakan class MessagingStyle. Kotlin var notification = CHANNEL_ID .setStyle .setConversationTitle"Team lunch" .addMessage"Hi", timestamp1, null // Pass in null for user. .addMessage"What's up?", timestamp2, "Coworker" .addMessage"Not much", timestamp3, null .addMessage"How about lunch?", timestamp4, "Coworker" .build Java Notification notification = new CHANNEL_ID .setStylenew .setConversationTitle"Team lunch" .addMessage"Hi", timestamp1, null // Pass in null for user. .addMessage"What's up?", timestamp2, "Coworker" .addMessage"Not much", timestamp3, null .addMessage"How about lunch?", timestamp4, "Coworker" .build; Berangkat Android API level 26, notifikasi yang menggunakan class akan menampilkan lebih banyak konten dalam rangka yang diciutkan. Anda juga dapat menggunakan metode addHistoricMessage untuk memberikan konteks pada konversasi dengan menambahkan pesan historis bakal notifikasi tersapu pesan. Detik menunggangi Panggil kerjakan menjadwalkan titel chat grup dengan lebih dari dua sosok. Judul percakapan nan baik dapat berwujud cap chat grup ataupun daftar peserta internal percakapan sekiranya chat grup tidak memiliki nama tertentu. Tanpa judul tadi, pesan mana tahu salah diartikan sebagai interlokusi pribadi dengan pengirim pesan terbaru dalam percakapan tersebut. Gunakan metode kerjakan mengikutsertakan pesan media seperti rangka. Saat ini, spesies MIME, gambar hipotetis/* didukung. Menggunakan balasan langsung Balasan Langsung memungkinkan pengguna kerjakan menandingi simultan satu wanti-wanti. Sesudah pengguna mengimbangi dengan tindakan balasan inline, gunakan untuk mengupdate notifikasi MessagingStyle dan jangan menarik kembali alias membatalkan notifikasi tersebut. Tidak membatalkan notifikasi memungkinkan pemakai untuk utus beberapa tentangan dari notifikasi. Untuk membuat tindakan peperangan inline yang kompatibel dengan Wear OS, panggil Gunakan metode addHistoricMessage bagi menyerahkan konteks ke konversasi perbangkangan sambil dengan menambahkan pesan historis ke notifikasi. Mengaktifkan smart reply Buat mengaktifkan Smart Reply, panggil setAllowGeneratedResponsestrue pada tindakan balas. Ini akan membuat respons Smart Reply tersedia untuk pengguna saat notifikasi dihubungkan ke perangkat Wear OS. Respons Smart Reply dihasilkan sepenuhnya oleh lengkap machine learning nan ada di arloji, memperalat konteks yang diberikan notifikasi dan tidak ada data yang diupload ke Internet buat menghasilkan respons. Menambahkan metadata notifikasi Tetapkan metadata notifikasi kerjakan memberi senggang sistem prinsip menangani notifikasi aplikasi Anda ketika perangkat privat mode Jangan Ganggu. Misalnya, gunakan metode addPerson atau setCategory untuk menukar mode Jangan Usik. What is the use of Notifications?Basic usage of notification in AndroidCreating Notification in Android StudioHow to use PendingIntent in androidThe final output of Notification in android What is the use of Notifications? How to create Notification in Android Studio- Notification Notification is a more distinctive feature in the Android system. When the user sends out some prompt information, and the application is not running in the foreground, it can be realized with the help of notifications. Send out one after a notification, a notification icon will be displayed in the status bar at the top of the phone. After you pull down the status bar, you can see the details of the notification. Basic usage of notification in Android Now that we understand the basic concepts of notification in android, let’s take a look at how to use notifications in android. Notification usage is still relatively flexible, it can be created either in the activity or in the broadcast receiver. Compared with broadcast receivers and services, there are still fewer scenarios for creating notifications in events. Because generally we only need to use notifications in android when the program enters the background. However, no matter where you create a notification, the overall steps are the same. Let’s learn how to create a notification in android studio. Know the detailed steps. First, you need a NotificationManager to manage notifications in android, you can call the Context Obtained by the getSystemService method. The getSystemService method receives a string parameter to determine the acquisition system Which service of the system, we can pass in here. Therefore, get An instance of NotificationManager can be written as NotificationManager manager = NotificationManagerNotificationManager manager =getSystemService Next, you need to create a Notification object, which is used to store various information required for notification in android. You can use its parameterized constructor to create it. The parameterized constructor of Notification can be written as builder = new Notification"; The method of Notification can set a standard layout for the notification in android. This method receives four parameters, the first parameter is ContentTitle, there is nothing to explain about this. The second parameter is used to specify the ContentText of the notification You can see this part of the content by pulling down the system status bar. The third parameter is used to specify the body content of the notification, also under You can see this part of the content by pulling the system status bar. the fourth parameter is AutoCancel. After the above work is completed, you only need to call the notify method of NotificationManager to display the notification Out. The notify method receives two parameters. The first parameter is id. Make sure that the id specified for each notification is different. The second parameter is the Notification object, here we directly set the Notification object we just created Just pass in. Therefore, displaying a notification can be written as So far, we have analyzed every step of creating a notification in android. Let us go through a specific example. Let’s take a look at what the notification looks like. Open Android Studio and click on the new project Then select empty activity and click on the Next button Then select the name for your application, in my case I select “NotificationDemo” and finally press the finish button As you can our notification project is created successfully Now modify the code in as follows 123456789101112131415161718 The layout file is very simple, there is only a Send notification button, which is used to send out a notice. Next modify The code in MainActivity is as follows 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 package static class MainActivity extends AppCompatActivity { private Button sendNotice; Override protected void onCreateBundle savedInstanceState { setContentView sendNotice = Button findViewById if >= NotificationChannel channel= new NotificationChannel"My Notification","My Notification", NotificationManager manager =getSystemService } { Override public void onClickView view { String message="Hello Programming Digest"; builder = new Notification"; NotificationManagerCompat managerCompat= } }; }} As you can see, we have completed the creation of the notification in the click event of the Send notice button, and the creation process As described earlier. Now you can run the program, click the Send notice button, you will see A notification is displayed in the system status bar, as shown in below Figure. Pull down the system status bar to see the detailed information of the notification, as shown in below Figure. If you have used an Android phone, you should subconsciously think that this notification is clickable. But when you click on it, you will find no effect. No, it seems that there should be a response after each notification is clicked Yes? In fact, if we want to achieve the click effect of the notification in android, we also need to make the corresponding settings in the code, which involves A new concept, PendingIntent. How to use PendingIntent in android PendingIntent looks similar to Intent from the name, and they do have a lot in common. For example, they can all specify a certain “intent”, and can be used to start activities, start services, and send broadcasts. The difference is that Intent is more inclined to perform an action immediately, while PendingIntent is more inclined to Time to perform an action. Therefore, PendingIntent can also be simply understood as a delayed execution Intent. The usage of PendingIntent is also very simple, it mainly provides several static methods for obtaining PendingIntent Instance, you can choose to use getActivity method, getBroadcast method, or getService according to your needs method. The parameters received by these methods are the same, and the first parameter is still Context, so there is no need to explain more. The second parameter is generally not used, and usually just pass in 0. The third parameter is an Intent object, we can pass Construct the “intent” of the PendingIntent from this object. The fourth parameter is used to determine the behavior of PendingIntent, there are FLAG_ONE_SHOT, FLAG_NO_CREATE, FLAG_CANCEL_CURRENT and FLAG_UPDATE_CURRENT These four values ​​are optional. For the meaning of each value, you can check the document, I will not explain them one by one. After having a certain understanding of PendingIntent, we will look back at the Notification builder method. So here You can construct a delayed execution “intent” through PendingIntent, which will be executed when the user clicks on the notification The corresponding logic. Now let’s optimize the NotificationDemo project, add a click function to the notification just now, and let the user click on it When you can start another activity. First, you need to prepare another activity. For creating new activity simply right click on package folder then click on new, in new click on Activity, in activity select the Empty Activity Then select the name for new activity in my case I select NotificationActivity Now modify the code of as follows 1234567891011121314151617 The content of the layout file is very simple, with only one TextView displayed in the center, which is used to display a piece of text information. Then create a new NotificationActivity inherited from Activity, load the layout file just defined here, the code is as follows 12345678910111213141516171819 package class NotificationActivity extends Activity { Override protected void onCreateBundle savedInstanceState { setContentView TextView textView=TextView findViewById String message=getIntent.getStringExtra"message"; }} Then modify the code in and add the registration statement of NotificationActivity in it, As follows 123456789101112131415161718192021222324252627282930 So that the NotificationActivity activity is ready, let’s modify the code in MainActivity, Add a click function to the notification in android, as shown below 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 package static class MainActivity extends AppCompatActivity { private Button sendNotice; Override protected void onCreateBundle savedInstanceState { setContentView sendNotice = Button findViewById if >= NotificationChannel channel= new NotificationChannel"My Notification","My Notification", NotificationManager manager =getSystemService } { Override public void onClickView view { String message="Hello Programming Digest"; builder = new Notification"; Intent intent = new Intent PendingIntent pendingIntent= NotificationManagerCompat managerCompat= } }; }} As you can see, we first use Intent to express our “intent” to start NotificationActivity, but Then pass the constructed Intent object to the getActivity method of PendingIntent to get the PendingIntent. Now run the program again and click the Send notice button, a notice will still be sent out. Then pull down the system In the status bar, click on the notification and you will see the interface of NotificationActivity, as shown in the below video. The final output of Notification in android Android Studio menyediakan pilihan template dan contoh kode untuk Anda gunakan dalam mempercepat pengembangan aplikasi. Jelajahi kode contoh untuk mempelajari cara mem-build berbagai komponen untuk aplikasi Anda. Gunakan template untuk membuat modul aplikasi baru, aktivitas individual, atau komponen project Android tertentu lainnya. Halaman ini menjelaskan cara mengakses dan menggunakan contoh kode Android berkualitas tinggi yang disediakan Google. Untuk mengetahui informasi tentang template, lihat Menambahkan kode dari template. Gunakan browser contoh untuk memilih, melihat pratinjau, dan mengimpor satu atau beberapa aplikasi contoh sebagai project Pilih File > New > Import Sample. Gunakan kotak penelusuran atau scroll bar untuk menjelajahi contoh. Jika sudah menemukan contoh yang menarik, tandai dan lihat pratinjaunya. Jika ingin mengimpor contoh sebagai project, klik Next, lalu Finish. Gambar 1. Dialog Browse Samples dengan daftar contoh dan pratinjau. Anda juga bisa menjelajahi kode sumber melalui GitHub. Notifications provide short, timely information about events in your app while it's not in use. This page teaches you how to create a notification with various features for Android API level 14 and higher. For an introduction to how notifications appear on Android, see the Notifications Overview. For sample code that uses notifications, see the People sample. Notice that the code on this page uses the NotificationCompat APIs from the Android support library. These APIs allow you to add features available only on newer versions of Android while still providing compatibility back to Android API level 14. However, some new features such as the inline reply action result in a no-op on older versions. Add the support library Although most projects created with Android Studio include the necessary dependencies to use NotificationCompat, you should verify that your module-level file includes the following dependency Groovy def core_version = " dependencies { implementation " } Kotlin val core_version = " dependencies { implementation" } Create a basic notification A notification in its most basic and compact form also known as collapsed form displays an icon, a title, and a small amount of content text. In this section, you'll learn how to create a notification that the user can click on to launch an activity in your app. Figure 1. A notification with a title and text For more details about each part of a notification, read about the notification anatomy. Set the notification content To get started, you need to set the notification's content and channel using a object. The following example shows how to create a notification with the following A small icon, set by setSmallIcon. This is the only user-visible content that's required. A title, set by setContentTitle. The body text, set by setContentText. The notification priority, set by setPriority. The priority determines how intrusive the notification should be on Android and lower. For Android and higher, you must instead set the channel importance—shown in the next section. Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitletextTitle .setContentTexttextContent .setPriority Java builder = new CHANNEL_ID .setSmallIcon .setContentTitletextTitle .setContentTexttextContent .setPriority Notice that the constructor requires that you provide a channel ID. This is required for compatibility with Android API level 26 and higher, but is ignored by older versions. By default, the notification's text content is truncated to fit one line. If you want your notification to be longer, you can enable an expandable notification by adding a style template with setStyle. For example, the following code creates a larger text area Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Much longer text that cannot fit one line..." .setStyle .bigText"Much longer text that cannot fit one line..." .setPriority Java builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Much longer text that cannot fit one line..." .setStylenew .bigText"Much longer text that cannot fit one line..." .setPriority For more information about other large notification styles, including how to add an image and media playback controls, see Create a Notification with Expandable Detail. Create a channel and set the importance Before you can deliver the notification on Android and higher, you must register your app's notification channel with the system by passing an instance of NotificationChannel to createNotificationChannel. So the following code is blocked by a condition on the SDK_INT version Kotlin private fun createNotificationChannel { // Create the NotificationChannel, but only on API 26+ because // the NotificationChannel class is new and not in the support library if >= { val name = getString val descriptionText = getString val importance = val channel = NotificationChannelCHANNEL_ID, name, importance.apply { description = descriptionText } // Register the channel with the system val notificationManager NotificationManager = getSystemService as NotificationManager } } Java private void createNotificationChannel { // Create the NotificationChannel, but only on API 26+ because // the NotificationChannel class is new and not in the support library if >= { CharSequence name = getString String description = getString int importance = NotificationChannel channel = new NotificationChannelCHANNEL_ID, name, importance; // Register the channel with the system; you can't change the importance // or other notification behaviors after this NotificationManager notificationManager = getSystemService } } Because you must create the notification channel before posting any notifications on Android and higher, you should execute this code as soon as your app starts. It's safe to call this repeatedly because creating an existing notification channel performs no operation. Notice that the NotificationChannel constructor requires an importance, using one of the constants from the NotificationManager class. This parameter determines how to interrupt the user for any notification that belongs to this channel—though you must also set the priority with setPriority to support Android and lower as shown above. Although you must set the notification importance/priority as shown here, the system does not guarantee the alert behavior you'll get. In some cases the system might change the importance level based other factors, and the user can always redefine what the importance level is for a given channel. For more information about what the different levels mean, read about notification importance levels. Set the notification's tap action Every notification should respond to a tap, usually to open an activity in your app that corresponds to the notification. To do so, you must specify a content intent defined with a PendingIntent object and pass it to setContentIntent. The following snippet shows how to create a basic intent to open an activity when the user taps the notification Kotlin // Create an explicit intent for an Activity in your app val intent = Intentthis, AlertDetails { flags = or } val pendingIntent PendingIntent = 0, intent, val builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority // Set the intent that will fire when the user taps the notification .setContentIntentpendingIntent .setAutoCanceltrue Java // Create an explicit intent for an Activity in your app Intent intent = new Intentthis, PendingIntent pendingIntent = 0, intent, builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority // Set the intent that will fire when the user taps the notification .setContentIntentpendingIntent .setAutoCanceltrue; Notice this code calls setAutoCancel, which automatically removes the notification when the user taps it. The setFlags method shown above helps preserve the user's expected navigation experience after they open your app via the notification. But whether you want to use that depends on what type of activity you're starting, which may be one of the following An activity that exists exclusively for responses to the notification. There's no reason the user would navigate to this activity during normal app use, so the activity starts a new task instead of being added to your app's existing task and back stack. This is the type of intent created in the sample above. An activity that exists in your app's regular app flow. In this case, starting the activity should create a back stack so that the user's expectations for the Back and Up buttons is preserved. For more about the different ways to configure your notification's intent, read Start an Activity from a Notification. Show the notification To make the notification appear, call passing it a unique ID for the notification and the result of For example Kotlin with { // notificationId is a unique int for each notification that you must define notifynotificationId, } Java NotificationManagerCompat notificationManager = // notificationId is a unique int for each notification that you must define Remember to save the notification ID that you pass to because you'll need it later if you want to update or remove the notification. Add action buttons A notification can offer up to three action buttons that allow the user to respond quickly, such as snooze a reminder or even reply to a text message. But these action buttons should not duplicate the action performed when the user taps the notification. Figure 2. A notification with one action button To add an action button, pass a PendingIntent to the addAction method. This is just like setting up the notification's default tap action, except instead of launching an activity, you can do a variety of other things such as start a BroadcastReceiver that performs a job in the background so the action does not interrupt the app that's already open. For example, the following code shows how to send a broadcast to a specific receiver Kotlin val snoozeIntent = Intentthis, MyBroadcastReceiver { action = ACTION_SNOOZE putExtraEXTRA_NOTIFICATION_ID, 0 } val snoozePendingIntent PendingIntent = 0, snoozeIntent, 0 val builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setContentIntentpendingIntent .addAction getString snoozePendingIntent Java Intent snoozeIntent = new Intentthis, 0; PendingIntent snoozePendingIntent = 0, snoozeIntent, 0; builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setContentIntentpendingIntent .addAction getString snoozePendingIntent; For more information about building a BroadcastReceiver to run background work, see the Broadcasts guide. If you're instead trying to build a notification with media playback buttons such as to pause and skip tracks, see how to create a notification with media controls. Add a direct reply action The direct reply action, introduced in Android API level 24, allows users to enter text directly into the notification, which is delivered to your app without opening an activity. For example, you can use a direct reply action to let users reply to text messages or update task lists from within the notification. Figure 3. Tapping the "Reply" button opens the text input The direct reply action appears as an additional button in the notification that opens a text input. When the user finishes typing, the system attaches the text response to the intent you had specified for the notification action and sends the intent to your app. Add the reply button To create a notification action that supports direct reply Create an instance of that you can add to your notification action. This class's constructor accepts a string that the system uses as the key for the text input. Later, your handheld app uses that key to retrieve the text of the input. Kotlin // Key for the string that's delivered in the action's intent. private val KEY_TEXT_REPLY = "key_text_reply" var replyLabel String = var remoteInput RemoteInput = { setLabelreplyLabel build } Java // Key for the string that's delivered in the action's intent. private static final String KEY_TEXT_REPLY = "key_text_reply"; String replyLabel = getResources.getString RemoteInput remoteInput = new .setLabelreplyLabel .build; Create a PendingIntent for the reply action. Kotlin // Build a PendingIntent for the reply action to trigger. var replyPendingIntent PendingIntent = getMessageReplyIntent Java // Build a PendingIntent for the reply action to trigger. PendingIntent replyPendingIntent = getMessageReplyIntent Caution If you re-use a PendingIntent, a user may reply to a different conversation than the one they thought they did. You must either provide a request code that is different for each conversation or provide an intent that doesn't return true when you call equals on the reply intent of any other conversation. The conversation ID is frequently passed as part of the intent's extras bundle, but is ignored when you call equals. Attach the RemoteInput object to an action using addRemoteInput. Kotlin // Create the reply action and add the remote input. var action = getString replyPendingIntent .addRemoteInputremoteInput .build Java // Create the reply action and add the remote input. action = new getString replyPendingIntent .addRemoteInputremoteInput .build; Apply the action to a notification and issue the notification. Kotlin // Build the notification and add the action. val newMessageNotification = CHANNEL_ID .setSmallIcon .setContentTitlegetString .setContentTextgetString .addActionaction .build // Issue the notification. with { newMessageNotification } Java // Build the notification and add the action. Notification newMessageNotification = new CHANNEL_ID .setSmallIcon .setContentTitlegetString .setContentTextgetString .addActionaction .build; // Issue the notification. NotificationManagerCompat notificationManager = newMessageNotification; The system prompts the user to input a response when they trigger the notification action, as shown in figure 3. Retrieve user input from the reply To receive user input from the notification's reply UI, call passing it the Intent received by your BroadcastReceiver Kotlin private fun getMessageTextintent Intent CharSequence? { return } Java private CharSequence getMessageTextIntent intent { Bundle remoteInput = if remoteInput != null { return } return null; } After you’ve processed the text, you must update the notification by calling with the same ID and tag if used. This is necessary to hide direct reply UI and confirm to the user that their reply was received and processed correctly. Kotlin // Build a new notification, which informs the user that the system // handled their interaction with the previous notification. val repliedNotification = CHANNEL_ID .setSmallIcon .setContentTextgetString .build // Issue the new notification. { repliedNotification } Java // Build a new notification, which informs the user that the system // handled their interaction with the previous notification. Notification repliedNotification = new CHANNEL_ID .setSmallIcon .setContentTextgetString .build; // Issue the new notification. NotificationManagerCompat notificationManager = repliedNotification; When working with this new notification, use the context that's passed to the receiver's onReceive method. You should also append the reply to the bottom of the notification by calling setRemoteInputHistory. However, if you’re building a messaging app, you should create a messaging-style notification and append the new message to the conversation. For more advice for notifications from a messaging apps, see best practices for messaging apps. Add a progress bar Notifications can include an animated progress indicator that shows users the status of an ongoing operation. Figure 4. The progress bar during and after the operation. If you can estimate how much of the operation is complete at any time, use the "determinate" form of the indicator as shown in figure 4 by calling setProgressmax, progress, false. The first parameter is what the "complete" value is such as 100; the second is how much is currently complete, and the last indicates this is a determinate progress bar. As your operation proceeds, continuously call setProgressmax, progress, false with an updated value for progress and re-issue the notification. Kotlin val builder = CHANNEL_ID.apply { setContentTitle"Picture Download" setContentText"Download in progress" setSmallIcon setPriority } val PROGRESS_MAX = 100 val PROGRESS_CURRENT = 0 { // Issue the initial notification with zero progress PROGRESS_CURRENT, false notifynotificationId, // Do the job here that tracks the progress. // Usually, this should be in a // worker thread // To show progress, update PROGRESS_CURRENT and update the notification with // PROGRESS_CURRENT, false; // // When done, update the notification one more time to remove the progress bar complete" .setProgress0, 0, false notifynotificationId, } Java ... NotificationManagerCompat notificationManager = builder = new CHANNEL_ID; Download" .setContentText"Download in progress" .setSmallIcon .setPriority // Issue the initial notification with zero progress int PROGRESS_MAX = 100; int PROGRESS_CURRENT = 0; PROGRESS_CURRENT, false; // Do the job here that tracks the progress. // Usually, this should be in a // worker thread // To show progress, update PROGRESS_CURRENT and update the notification with // PROGRESS_CURRENT, false; // // When done, update the notification one more time to remove the progress bar complete" .setProgress0,0,false; At the end of the operation, progress should equal max. You can either leave the progress bar showing when the operation is done, or remove it. In either case, remember to update the notification text to show that the operation is complete. To remove the progress bar, call setProgress0, 0, false. To display an indeterminate progress bar a bar that does not indicate percentage complete, call setProgress0, 0, true. The result is an indicator that has the same style as the progress bar above, except the progress bar is a continuous animation that does not indicate completion. The progress animation runs until you call setProgress0, 0, false and then update the notification to remove the activity indicator. Remember to change the notification text to indicate that the operation is complete. Set a system-wide category Android uses some pre-defined system-wide categories to determine whether to disturb the user with a given notification when the user has enabled Do Not Disturb mode. If your notification falls into one of the pre-defined notification categories defined in NotificationCompat—such as CATEGORY_ALARM, CATEGORY_REMINDER, CATEGORY_EVENT, or CATEGORY_CALL—you should declare it as such by passing the appropriate category to setCategory. Kotlin var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setCategory Java builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setCategory This information about your notification category is used by the system to make decisions about displaying your notification when the device is in Do Not Disturb mode. However, you are not required to set a system-wide category and should only do so if your notifications match one of the categories defined by in NotificationCompat. Show an urgent message Your app might need to display an urgent, time-sensitive message, such as an incoming phone call or a ringing alarm. In these situations, you can associate a full-screen intent with your notification. When the notification is invoked, users see one of the following, depending on the device's lock status If the user's device is locked, a full-screen activity appears, covering the lockscreen. If the user's device is unlocked, the notification appears in an expanded form that includes options for handling or dismissing the notification. The following code snippet demonstrates how to associate your notification with a full-screen intent Kotlin val fullScreenIntent = Intentthis, ImportantActivity val fullScreenPendingIntent = 0, fullScreenIntent, var builder = CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setFullScreenIntentfullScreenPendingIntent, true Java Intent fullScreenIntent = new Intentthis, PendingIntent fullScreenPendingIntent = 0, fullScreenIntent, builder = new CHANNEL_ID .setSmallIcon .setContentTitle"My notification" .setContentText"Hello World!" .setPriority .setFullScreenIntentfullScreenPendingIntent, true; Set lock screen visibility To control the level of detail visible in the notification from the lock screen, call setVisibility and specify one of the following values VISIBILITY_PUBLIC shows the notification's full content. VISIBILITY_SECRET doesn't show any part of this notification on the lock screen. VISIBILITY_PRIVATE shows basic information, such as the notification's icon and the content title, but hides the notification's full content. When VISIBILITY_PRIVATE is set, you can also provide an alternate version of the notification content which hides certain details. For example, an SMS app might display a notification that shows You have 3 new text messages, but hides the message contents and senders. To provide this alternative notification, first create the alternative notification with as usual. Then attach the alternative notification to the normal notification with setPublicVersion. However, the user always has final control over whether their notifications are visible on the lock screen and can even control that based on your app's notification channels. Update a notification To update this notification after you've issued it, call again, passing it a notification with the same ID you used previously. If the previous notification has been dismissed, a new notification is created instead. You can optionally call setOnlyAlertOnce so your notification interupts the user with sound, vibration, or visual clues only the first time the notification appears and not for later updates. Remove a notification Notifications remain visible until one of the following happens The user dismisses the notification. The user clicks the notification, and you called setAutoCancel when you created the notification. You call cancel for a specific notification ID. This method also deletes ongoing notifications. You call cancelAll, which removes all of the notifications you previously issued. If you set a timeout when creating a notification using setTimeoutAfter, the system cancels the notification after the specified duration elapses. If required, you can cancel a notification before the specified timeout duration elapses. Best practices for messaging apps Use the best practices listed here as a quick reference of what to keep in mind when creating notifications for your messaging and chat apps. Use MessagingStyle Starting in Android API level 24, Android provides a notification style template specifically for messaging content. Using the class, you can change several of the labels displayed on the notification, including the conversation title, additional messages, and the content view for the notification. The following code snippet demonstrates how to customize a notification's style using the MessagingStyle class. Kotlin var notification = CHANNEL_ID .setStyle .setConversationTitle"Team lunch" .addMessage"Hi", timestamp1, null // Pass in null for user. .addMessage"What's up?", timestamp2, "Coworker" .addMessage"Not much", timestamp3, null .addMessage"How about lunch?", timestamp4, "Coworker" .build Java Notification notification = new CHANNEL_ID .setStylenew .setConversationTitle"Team lunch" .addMessage"Hi", timestamp1, null // Pass in null for user. .addMessage"What's up?", timestamp2, "Coworker" .addMessage"Not much", timestamp3, null .addMessage"How about lunch?", timestamp4, "Coworker" .build; Starting in Android API level 26, notifications that use the class display more content in their collapsed form. You can also use the addHistoricMessage method to provide context to a conversation by adding historic messages to messaging-related notifications. When using Call to set a title for group chats with more than two people. A good conversation title might be the name of the group chat or, if it doesn't have a specific name, a list of the participants in the conversation. Without this, the message may be mistaken as belonging to a one-to-one conversation with the sender of the most recent message in the conversation. Use the method to include media messages such as images. MIME types, of the pattern image/* are currently supported. Use direct reply Direct Reply allows a user to reply inline to a message. After a user replies with the inline reply action, use to update the MessagingStyle notification and do not retract or cancel the notification. Not cancelling the notification allows a user to send multiple replies from the notification. To make the inline reply action compatible with Wear OS, call Use the addHistoricMessage method to provide context to a direct reply conversation by adding historic messages to the notification. Enable smart reply To enable Smart Reply, call setAllowGeneratedResponsestrue on the reply action. This causes Smart Reply responses to be available to users when the notification is bridged to a Wear OS device. Smart Reply responses are generated by an entirely on-watch machine learning model using the context provided by the notification, and no data is uploaded to the Internet to generate the responses. Add notification metadata Assign notification metadata to tell the system how to handle your app notifications when the device is in Do Not Disturb mode. For example, use the addPerson or setCategory method to override the Do Not Disturb mode.

cara membuat notifikasi di android studio