Learn how to create a beautiful material design timer app for Android.
In this course you will learn how to make a user interface. Later we’re going to code a timer which can run in the foreground. Then we are going to upgrade it to be able to run also in the background – and we will control it from notifications! Finally we will create a settings activity where a user will be able to set the length of the timer.
In the fourth part we’re creating notifications for when the timer is running, paused, or when it finishes. We also include the code which can control the timer right from the notifications!
This post contains all the code that’s been written in this YouTube video.
You can also check out this GitHub repository: https://github.com/ResoCoder/TimerAppAndroidTutorial
NotificationUtil.kt
package com.resocoder.timertutorial.util import android.annotation.TargetApi import android.app.NotificationChannel import android.app.NotificationManager import android.app.PendingIntent import android.app.TaskStackBuilder import android.content.Context import android.content.Intent import android.graphics.Color import android.media.RingtoneManager import android.net.Uri import android.os.Build import android.support.v4.app.NotificationCompat import com.resocoder.timertutorial.AppConstants import com.resocoder.timertutorial.R import com.resocoder.timertutorial.TimerActivity import com.resocoder.timertutorial.TimerNotificationActionReceiver import java.text.SimpleDateFormat import java.util.* class NotificationUtil { companion object { private const val CHANNEL_ID_TIMER = "menu_timer" private const val CHANNEL_NAME_TIMER = "Timer App Timer" private const val TIMER_ID = 0 fun showTimerExpired(context: Context){ val startIntent = Intent(context, TimerNotificationActionReceiver::class.java) startIntent.action = AppConstants.ACTION_START val startPendingIntent = PendingIntent.getBroadcast(context, 0, startIntent, PendingIntent.FLAG_UPDATE_CURRENT) val nBuilder = getBasicNotificationBuilder(context, CHANNEL_ID_TIMER, true) nBuilder.setContentTitle("Timer Expired!") .setContentText("Start again?") .setContentIntent(getPendingIntentWithStack(context, TimerActivity::class.java)) .addAction(R.drawable.ic_play_arrow, "Start", startPendingIntent) val nManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager nManager.createNotificationChannel(CHANNEL_ID_TIMER, CHANNEL_NAME_TIMER, true) nManager.notify(TIMER_ID, nBuilder.build()) } fun showTimerRunning(context: Context, wakeUpTime: Long){ val stopIntent = Intent(context, TimerNotificationActionReceiver::class.java) stopIntent.action = AppConstants.ACTION_STOP val stopPendingIntent = PendingIntent.getBroadcast(context, 0, stopIntent, PendingIntent.FLAG_UPDATE_CURRENT) val pauseIntent = Intent(context, TimerNotificationActionReceiver::class.java) pauseIntent.action = AppConstants.ACTION_PAUSE val pausePendingIntent = PendingIntent.getBroadcast(context, 0, pauseIntent, PendingIntent.FLAG_UPDATE_CURRENT) val df = SimpleDateFormat.getTimeInstance(SimpleDateFormat.SHORT) val nBuilder = getBasicNotificationBuilder(context, CHANNEL_ID_TIMER, true) nBuilder.setContentTitle("Timer is Running.") .setContentText("End: ${df.format(Date(wakeUpTime))}") .setContentIntent(getPendingIntentWithStack(context, TimerActivity::class.java)) .setOngoing(true) .addAction(R.drawable.ic_stop, "Stop", stopPendingIntent) .addAction(R.drawable.ic_pause, "Pause", pausePendingIntent) val nManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager nManager.createNotificationChannel(CHANNEL_ID_TIMER, CHANNEL_NAME_TIMER, true) nManager.notify(TIMER_ID, nBuilder.build()) } fun showTimerPaused(context: Context){ val resumeIntent = Intent(context, TimerNotificationActionReceiver::class.java) resumeIntent.action = AppConstants.ACTION_RESUME val resumePendingIntent = PendingIntent.getBroadcast(context, 0, resumeIntent, PendingIntent.FLAG_UPDATE_CURRENT) val nBuilder = getBasicNotificationBuilder(context, CHANNEL_ID_TIMER, true) nBuilder.setContentTitle("Timer is paused.") .setContentText("Resume?") .setContentIntent(getPendingIntentWithStack(context, TimerActivity::class.java)) .setOngoing(true) .addAction(R.drawable.ic_play_arrow, "Resume", resumePendingIntent) val nManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager nManager.createNotificationChannel(CHANNEL_ID_TIMER, CHANNEL_NAME_TIMER, true) nManager.notify(TIMER_ID, nBuilder.build()) } fun hideTimerNotification(context: Context){ val nManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager nManager.cancel(TIMER_ID) } private fun getBasicNotificationBuilder(context: Context, channelId: String, playSound: Boolean) : NotificationCompat.Builder{ val notificationSound: Uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION) val nBuilder = NotificationCompat.Builder(context, channelId) .setSmallIcon(R.drawable.ic_timer) .setAutoCancel(true) .setDefaults(0) if (playSound) nBuilder.setSound(notificationSound) return nBuilder } private fun <T> getPendingIntentWithStack(context: Context, javaClass: Class<T>): PendingIntent{ val resultIntent = Intent(context, javaClass) resultIntent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP val stackBuilder = TaskStackBuilder.create(context) stackBuilder.addParentStack(javaClass) stackBuilder.addNextIntent(resultIntent) return stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT) } @TargetApi(26) private fun NotificationManager.createNotificationChannel(channelID: String, channelName: String, playSound: Boolean){ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){ val channelImportance = if (playSound) NotificationManager.IMPORTANCE_DEFAULT else NotificationManager.IMPORTANCE_LOW val nChannel = NotificationChannel(channelID, channelName, channelImportance) nChannel.enableLights(true) nChannel.lightColor = Color.BLUE this.createNotificationChannel(nChannel) } } } }
TimerNotificationActionReceiver.kt
package com.resocoder.timertutorial import android.content.BroadcastReceiver import android.content.Context import android.content.Intent import com.resocoder.timertutorial.util.NotificationUtil import com.resocoder.timertutorial.util.PrefUtil class TimerNotificationActionReceiver : BroadcastReceiver() { override fun onReceive(context: Context, intent: Intent) { when (intent.action){ AppConstants.ACTION_STOP -> { TimerActivity.removeAlarm(context) PrefUtil.setTimerState(TimerActivity.TimerState.Stopped, context) NotificationUtil.hideTimerNotification(context) } AppConstants.ACTION_PAUSE -> { var secondsRemaining = PrefUtil.getSecondsRemaining(context) val alarmSetTime = PrefUtil.getAlarmSetTime(context) val nowSeconds = TimerActivity.nowSeconds secondsRemaining -= nowSeconds - alarmSetTime PrefUtil.setSecondsRemaining(secondsRemaining, context) TimerActivity.removeAlarm(context) PrefUtil.setTimerState(TimerActivity.TimerState.Paused, context) NotificationUtil.showTimerPaused(context) } AppConstants.ACTION_RESUME -> { val secondsRemaining = PrefUtil.getSecondsRemaining(context) val wakeUpTime = TimerActivity.setAlarm(context, TimerActivity.nowSeconds, secondsRemaining) PrefUtil.setTimerState(TimerActivity.TimerState.Running, context) NotificationUtil.showTimerRunning(context, wakeUpTime) } AppConstants.ACTION_START -> { val minutesRemaining = PrefUtil.getTimerLength(context) val secondsRemaining = minutesRemaining * 60L val wakeUpTime = TimerActivity.setAlarm(context, TimerActivity.nowSeconds, secondsRemaining) PrefUtil.setTimerState(TimerActivity.TimerState.Running, context) PrefUtil.setSecondsRemaining(secondsRemaining, context) NotificationUtil.showTimerRunning(context, wakeUpTime) } } } }
AppConstants.kt
package com.resocoder.timertutorial class AppConstants { companion object { const val ACTION_STOP = "stop" const val ACTION_PAUSE = "pause" const val ACTION_RESUME = "resume" const val ACTION_START = "start" } }
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.resocoder.timertutorial"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".TimerActivity" android:label="@string/app_name" android:theme="@style/AppTheme.NoActionBar"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <receiver android:name=".TimerExpiredReceiver" android:enabled="true" android:exported="false" /> <receiver android:name=".TimerNotificationActionReceiver" android:enabled="true" android:exported="false"> <intent-filter> <action android:name="stop"/> <action android:name="pause" /> <action android:name="resume" /> <action android:name="start" /> </intent-filter> </receiver> </application> </manifest>
TimerExpiredReceiver.kt
package com.resocoder.timertutorial import android.content.BroadcastReceiver import android.content.Context import android.content.Intent import com.resocoder.timertutorial.util.NotificationUtil import com.resocoder.timertutorial.util.PrefUtil class TimerExpiredReceiver : BroadcastReceiver() { override fun onReceive(context: Context, intent: Intent) { NotificationUtil.showTimerExpired(context) PrefUtil.setTimerState(TimerActivity.TimerState.Stopped, context) PrefUtil.setAlarmSetTime(0, context) } }
TimerActivity.kt
package com.resocoder.timertutorial import android.app.AlarmManager import android.app.PendingIntent import android.content.Context import android.content.Intent import android.os.Bundle import android.os.CountDownTimer import android.support.v7.app.AppCompatActivity import android.view.Menu import android.view.MenuItem import com.resocoder.timertutorial.util.NotificationUtil import com.resocoder.timertutorial.util.PrefUtil import kotlinx.android.synthetic.main.activity_timer.* import kotlinx.android.synthetic.main.content_timer.* import java.util.* class TimerActivity : AppCompatActivity() { companion object { fun setAlarm(context: Context, nowSeconds: Long, secondsRemaining: Long): Long{ val wakeUpTime = (nowSeconds + secondsRemaining) * 1000 val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager val intent = Intent(context, TimerExpiredReceiver::class.java) val pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0) alarmManager.setExact(AlarmManager.RTC_WAKEUP, wakeUpTime, pendingIntent) PrefUtil.setAlarmSetTime(nowSeconds, context) return wakeUpTime } fun removeAlarm(context: Context){ val intent = Intent(context, TimerExpiredReceiver::class.java) val pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0) val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager alarmManager.cancel(pendingIntent) PrefUtil.setAlarmSetTime(0, context) } val nowSeconds: Long get() = Calendar.getInstance().timeInMillis / 1000 } enum class TimerState{ Stopped, Paused, Running } private lateinit var timer: CountDownTimer private var timerLengthSeconds: Long = 0 private var timerState = TimerState.Stopped private var secondsRemaining: Long = 0 override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_timer) setSupportActionBar(toolbar) supportActionBar?.setIcon(R.drawable.ic_timer) supportActionBar?.title = " Timer" fab_start.setOnClickListener{v -> startTimer() timerState = TimerState.Running updateButtons() } fab_pause.setOnClickListener { v -> timer.cancel() timerState = TimerState.Paused updateButtons() } fab_stop.setOnClickListener { v -> timer.cancel() onTimerFinished() } } override fun onResume() { super.onResume() initTimer() removeAlarm(this) NotificationUtil.hideTimerNotification(this) } override fun onPause() { super.onPause() if (timerState == TimerState.Running){ timer.cancel() val wakeUpTime = setAlarm(this, nowSeconds, secondsRemaining) NotificationUtil.showTimerRunning(this, wakeUpTime) } else if (timerState == TimerState.Paused){ NotificationUtil.showTimerPaused(this) } PrefUtil.setPreviousTimerLengthSeconds(timerLengthSeconds, this) PrefUtil.setSecondsRemaining(secondsRemaining, this) PrefUtil.setTimerState(timerState, this) } private fun initTimer(){ timerState = PrefUtil.getTimerState(this) //we don't want to change the length of the timer which is already running //if the length was changed in settings while it was backgrounded if (timerState == TimerState.Stopped) setNewTimerLength() else setPreviousTimerLength() secondsRemaining = if (timerState == TimerState.Running || timerState == TimerState.Paused) PrefUtil.getSecondsRemaining(this) else timerLengthSeconds val alarmSetTime = PrefUtil.getAlarmSetTime(this) if (alarmSetTime > 0) secondsRemaining -= nowSeconds - alarmSetTime if (secondsRemaining <= 0) onTimerFinished() else if (timerState == TimerState.Running) startTimer() updateButtons() updateCountdownUI() } private fun onTimerFinished(){ timerState = TimerState.Stopped //set the length of the timer to be the one set in SettingsActivity //if the length was changed when the timer was running setNewTimerLength() progress_countdown.progress = 0 PrefUtil.setSecondsRemaining(timerLengthSeconds, this) secondsRemaining = timerLengthSeconds updateButtons() updateCountdownUI() } private fun startTimer(){ timerState = TimerState.Running timer = object : CountDownTimer(secondsRemaining * 1000, 1000) { override fun onFinish() = onTimerFinished() override fun onTick(millisUntilFinished: Long) { secondsRemaining = millisUntilFinished / 1000 updateCountdownUI() } }.start() } private fun setNewTimerLength(){ val lengthInMinutes = PrefUtil.getTimerLength(this) timerLengthSeconds = (lengthInMinutes * 60L) progress_countdown.max = timerLengthSeconds.toInt() } private fun setPreviousTimerLength(){ timerLengthSeconds = PrefUtil.getPreviousTimerLengthSeconds(this) progress_countdown.max = timerLengthSeconds.toInt() } private fun updateCountdownUI(){ val minutesUntilFinished = secondsRemaining / 60 val secondsInMinuteUntilFinished = secondsRemaining - minutesUntilFinished * 60 val secondsStr = secondsInMinuteUntilFinished.toString() textView_countdown.text = "$minutesUntilFinished:${if (secondsStr.length == 2) secondsStr else "0" + secondsStr}" progress_countdown.progress = (timerLengthSeconds - secondsRemaining).toInt() } private fun updateButtons(){ when (timerState) { TimerState.Running ->{ fab_start.isEnabled = false fab_pause.isEnabled = true fab_stop.isEnabled = true } TimerState.Stopped -> { fab_start.isEnabled = true fab_pause.isEnabled = false fab_stop.isEnabled = false } TimerState.Paused -> { fab_start.isEnabled = true fab_pause.isEnabled = false fab_stop.isEnabled = true } } } override fun onCreateOptionsMenu(menu: Menu): Boolean { // Inflate the menu; this adds items to the action bar if it is present. menuInflater.inflate(R.menu.menu_timer, menu) return true } override fun onOptionsItemSelected(item: MenuItem): Boolean { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. return when (item.itemId) { R.id.action_settings -> true else -> super.onOptionsItemSelected(item) } } }
i use this in my app and it works perfect, but when i finish the 4th video it starts crashing when i put it in background.
it throws:
FATAL EXCEPTION: main
Process: com.martin.brewer, PID: 28546
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/app/NotificationChannel;
at com.martin.brewer.util.NotificationUtil$Companion.createNotificationChannel(NotificationUtil.kt:123)
at com.martin.brewer.util.NotificationUtil$Companion.showTimerRunning(NotificationUtil.kt:65)
at com.martin.brewer.View.MainActivity.onPause(MainActivity.kt:92)
at android.app.Activity.performPause(Activity.java:6348)
at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1311)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3367)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3340)
at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3315)
at android.app.ActivityThread.-wrap13(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn’t find class “android.app.NotificationChannel” on path: DexPathList[[zip file “/data/app/com.martin.brewer-2/base.apk”],nativeLibraryDirectories=[/data/app/com.martin.brewer-2/lib/x86, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.martin.brewer.util.NotificationUtil$Companion.createNotificationChannel(NotificationUtil.kt:123)
at com.martin.brewer.util.NotificationUtil$Companion.showTimerRunning(NotificationUtil.kt:65)
at com.martin.brewer.View.MainActivity.onPause(MainActivity.kt:92)
at android.app.Activity.performPause(Activity.java:6348)
at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1311)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3367)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3340)
at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3315)
at android.app.ActivityThread.-wrap13(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Suppressed: java.lang.ClassNotFoundException: android.app.NotificationChannel
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
… 17 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
Do you know how can i fix it?
Thanks
Martin
y comment this 3 lines [ nManager.createNotificationChannel(CHANNEL_ID_TIMER, CHANNEL_NAME_TIMER, true) ] and its works, do yo know why is crashing with them and how can i fix it?
here is the function:
@TargetApi(26)
private fun NotificationManager.createNotificationChannel(channelID: String, channelName: String, playSound: Boolean){
val channelImportance = if(playSound) {
NotificationManager.IMPORTANCE_DEFAULT
} else {
NotificationManager.IMPORTANCE_LOW
}
val nChannel = NotificationChannel(channelID, channelName, channelImportance)
nChannel.enableLights(true)
nChannel.lightColor = Color.BLUE
this.createNotificationChannel(nChannel)
}
Thanks!
Hey! It seems that you’ve forgotten to check the version of the device / emulator.
Wrap the content of the provided function in this if statement: if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) and it should work.
Are you using a pre-Oreo device to test your app?
It works!! thanks! I was using marshmallow, I do what you say and it works on it and in oreo too. Thank you very much for the tutorial and for helping me!
Hi,
Everything worked fine unt,l I implemented Video4 notifications. Do you have any idea what might be wrong?
The code that is causing the problem is
nBuilder.setContentIntent(getPendingIntentWithStack(context, TimerActivity::class.java))
Thanks
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.cudinal.tmertutorial, PID: 24273
java.lang.RuntimeException: Unable to pause activity {com.cudinal.tmertutorial/com.cudinal.tmertutorial.TimerActivity}: java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.cudinal.tmertutorial/com.cudinal.tmertutorial.util.NotificationUtil$Companion}
at android.app.ActivityThread.performPauseActivityIfNeeded(ActivityThread.java:3912)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3878)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3852)
at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3826)
at android.app.ActivityThread.-wrap15(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1601)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.cudinal.tmertutorial/com.cudinal.tmertutorial.util.NotificationUtil$Companion}
at android.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:181)
at android.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:152)
at com.cudinal.tmertutorial.util.NotificationUtil$Companion.getPendingIntentWithStack(NotificationUtil.kt:105)
at com.cudinal.tmertutorial.util.NotificationUtil$Companion.showTimerRunning(NotificationUtil.kt:58)
at com.cudinal.tmertutorial.TimerActivity.onPause(TimerActivity.kt:90)
at android.app.Activity.performPause(Activity.java:7153)
at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1408)
at android.app.ActivityThread.performPauseActivityIfNeeded(ActivityThread.java:3901)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3878)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3852)
at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3826)
at android.app.ActivityThread.-wrap15(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1601)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.cudinal.tmertutorial/com.cudinal.tmertutorial.util.NotificationUtil$Companion}
at android.app.ApplicationPackageManager.getActivityInfo(ApplicationPackageManager.java:418)
at android.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:168)
at android.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:152)
at com.cudinal.tmertutorial.util.NotificationUtil$Companion.getPendingIntentWithStack(NotificationUtil.kt:105)
at com.cudinal.tmertutorial.util.NotificationUtil$Companion.showTimerRunning(NotificationUtil.kt:58)
at com.cudinal.tmertutorial.TimerActivity.onPause(TimerActivity.kt:90)
at android.app.Activity.performPause(Activity.java:7153)
at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1408)
at android.app.ActivityThread.performPauseActivityIfNeeded(ActivityThread.java:3901)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3878)
at android.app.ActivityThread.performPauseActivity(ActivityThread.java:3852)
at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:3826)
at android.app.ActivityThread.-wrap15(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1601)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Thank you for your tutorial…its great.
Question: how can i play a sound(raw.mp3) instead of the Ringtonemanager.?
my sound:
val soundUri: Uri = Uri.parse(
“android.resource://” + context.packageName.toString()
+ “/” + q7.com.eieruhrbackforenot.R.raw.see)
i have tried it, but the default one is still ringing.
Thank you