I have some trouble ring an alarm on android-studio app. First, I have a method, called with a button ( onClick), then I create alarmManager in this, and try to call a class AlarmReceiver to ring the alarm. The problem is that the program running never go in my AlarmReceiver class, and I don't understand why. Let me show you the code:
public void sendMessage(View v) {
long time = currentTimeMillis();
Toast.makeText(this, "ALARM ON", Toast.LENGTH_SHORT).show();
alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 14);
calendar.set(Calendar.MINUTE, 58);
Toast.makeText(MainActivity.this, "bjr", Toast.LENGTH_SHORT).show();
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),pendingIntent);}
This is the method called when click on button, and now this is the AlarmReceiver:
public class AlarmReceiver extends WakefulBroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "Alarm! Wake up! Wake up!", Toast.LENGTH_LONG).show();
Uri alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
if (alarmUri == null)
{
alarmUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
}
Ringtone ringtone = RingtoneManager.getRingtone(context, alarmUri);
ringtone.play();
}
}
So, when I run the app, then click on button, the word " ALARM ON" and "bjr" is printed, but the text so in AlarmReceiver "Alarm! Wake up!" Is never printed, so the app never go in this class, I need to know why.
My android manifest :
`<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.beantunes.myapplication">
<uses-feature
android:name="android.hardware.sensor.accelerometer"
android:required="true"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".vue.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".vue.AlarmReceiver"
android:enabled="false">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"></action>
</intent-filter>
</receiver>
<activity android:name=".vue.DisplayMessageActivity"></activity>
</application>
`
Related
I used alarm manager in my program,but for the first time I run it, It just worked when my program was open and when it was close it did not work in the background, but in the second time it worked in the background too.
MainActivity :
public class MainActivity extends AppCompatActivity {
AlarmManager alarmManager;
Intent intent;
PendingIntent pendingIntent;
#Override
protected void onCreate(Bundle savedInstanceState) {
intent = new Intent(MainActivity.this, AlertReceiver.class);
pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+60000, pendingIntent);
}
}
AlertReceiver :
public class AlertReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("Log", "onReceiver!!");
}
}
AndroidManifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.yadame">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<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=".MainActivity" 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=".AlertReceiver"/>
</application>
I am using AlarmManager on clicking floatingActionButton but it is not calling the alarm class. I tested the floatingActionButton via Toasts but it is working fine but Toast and vibrator in My_Alarm Class is not working even tough i have enebled permission in Manifests. Kindly point out the problem!
Below code main activity (Alarm Manager in floatingActionButton)
floatingActionButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, AlarmManager.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this,5,intent,0);
sendBroadcast(intent);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+1000,pendingIntent);
}
});
}
This is my Alarm class (Toast and Vibrate not working)
public class My_Alarms extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Fuck This Shit", Toast.LENGTH_LONG).show();
Vibrator v = (Vibrator)context.getSystemService(context.VIBRATOR_SERVICE);
v.vibrate(10000);
}
}
And this is my Manifest file (I have enabled permission)
<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=".Activity_Time_Setting"
android:grantUriPermissions="true"
></activity>
<activity android:name=".MainActivity">
android:grantUriPermissions="true"
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
android:grantUriPermissions="true"
</intent-filter>
</activity>
<receiver android:name=".My_Alarms"/>
</application>
Replace this line of code :
Intent intent = new Intent(MainActivity.this, AlarmManager.class);
with this :
Intent intent = new Intent(MainActivity.this, My_Alarms.class);
Also you don't need to use
sendBroadcast(intent);
this line because you are already passing intent in pending intent
At last try to to remove toast from your broadcast reciver
It's toasting until I didn't restart my phone but after restarting broadcastreceiver2 doesn't receive and nothing happens.
I followed http://stacktips.com/tutorials/android/how-to-start-an-application-at-device-bootup-in-android and many other but nothing happens.
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.k2.alarmmanagerdemo">
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<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=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.k2.alarmmanagerdemo.MyBroadcastReceiver"
android:enabled="true">
</receiver>
<receiver android:name="com.k2.alarmmanagerdemo.BroadCastRecevier2"
android:enabled="true"
android:exported="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<action android:name="android.intent.action.QUICKBOOT_POWERON"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>
</manifest>
MainActivity.java
public class MainActivity extends Activity {
Button b1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button) findViewById(R.id.button1);
b1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startAlert();
}
});
}
public void startAlert() {
EditText text = (EditText) findViewById(R.id.time);
int i = Integer.parseInt(text.getText().toString());
Intent intent = new Intent(this, MyBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
this.getApplicationContext(), 234324243, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis(),
1000 * 5,pendingIntent);
Toast.makeText(this, "Alarm set in " + i + " seconds",Toast.LENGTH_LONG).show();
}
}
MyBroadcastReceiver.java
public class MyBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Alarm...." + System.currentTimeMillis(), Toast.LENGTH_SHORT).show();
Log.i("Alarm.", "alarm called" + System.currentTimeMillis());
}
}
BroadCastRecevier2.java
public class BroadCastRecevier2 extends BroadcastReceiver {
MainActivity activity = new MainActivity();
#Override
public void onReceive(Context context, Intent intent) {
activity.startAlert();
if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
Intent i = new Intent();
i.setClassName("com.k2.alarmmanagerdemo",
"com.k2.alarmmanagerdemo.MainActivity");
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
Toast.makeText(context, "BOOT", Toast.LENGTH_SHORT).show();
Log.i("myboot","boot compleated inside");
}
}
}
Remove this line from your <receiver> declaration for BroadcastReceiver2:
android:permission="android.permission.RECEIVE_BOOT_COMPLETED"
That line in the <receiver> tag is telling the system that only packages which have this permission are allowed to send your class the Intent. Its' likely confusing the system and preventing the Intent from being sent to your receiver.
You may also find this article helpful when learning about alarms and the boot complete receiver.
I want to implement a background task in my android application. For Android 5.0 and lower, my code suffices with a simple BroadcastReceiver, where I can easily set an repeating alarm with
setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 1000 * seconds, pendingIntent);
On Android 6.0, however, I found out to replace my BroadcastReceiver with WakefulBroadcastReceiver and
setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), pendingIntent);
It is still not working at all and I don't know what my mistake is..
Here my code:
public class AlarmManagerBroadcastReceiver extends WakefulBroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
mContext = context;
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "YOUR TAG");
//Acquire the lock
wl.acquire();
callback = new GPSActivityCallback() {...}
if(isConnectedToInternet()) {
gpsService = new GPSService(callback, context);
gpsService.refreshLocation();
Bundle extras = intent.getExtras();
StringBuilder msgStr = new StringBuilder();
if (extras != null && extras.getBoolean(REPEAT, Boolean.FALSE)) {
//Make sure this intent has been sent by the one-time timer button.
}
Format formatter = new SimpleDateFormat("hh:mm:ss a");
msgStr.append(formatter.format(new Date()));
}
else {
Toast.makeText(context, "Internetverbindung wurde unterbrochen", Toast.LENGTH_SHORT).show();
Log.d("INTERNET_TAG","Internetverbindung war kurrzeitig getrennt");
}
wl.release();
public void SetAlarm(Context context) {
AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmManagerBroadcastReceiver.class);
intent.putExtra(REPEAT, Boolean.FALSE);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
if(Build.VERSION.SDK_INT < 23){
if(Build.VERSION.SDK_INT >= 19){
am.setExact(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), pi);
}
else{
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), pi);
}
}
else{
am.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), pi);
}
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 1000 * 10, pi);
}
public boolean isConnectedToInternet(){...}
}
This is my Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nymvno.hiob.prototyp_v30">
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/Theme.AppCompat">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.nymvno.hiob.prototyp_v30.AlarmManagerBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="alarm" />
</intent-filter>
</receiver>
</application>
</manifest>
I seem to be having trouble getting my onReceive class receive any broadcasts I send out. Im not sure if its my code thats the problem or its a problem with the Android Manifest.
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.i("BROADCAST_RECEIVED", intent.getDataString());
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wakeLock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP, "");
wakeLock.acquire();
wakeLock.release();
context.startActivity(intent);
}
}
public void setDayOfWeekAlarm(DayOfWeek day){
long alarmInMili = 0;
Intent intent = new Intent(context,AlarmScreenActivity.class);
alarmInMili = System.currentTimeMillis() + 1000*10;
Log.i("REGISTER ALARM", String.valueOf(alarmInMili));
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,SystemClock.elapsedRealtime() +
10 * 1000,pi);
}
AndroidManifest
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.brianlindsey.alarm"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="18"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver
android:name="com.brianlindsey.AlarmReceiver"
android:enabled="true" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" >
</action>
</intent-filter>
</receiver>
</application>
</manifest>
In addition to Gabe's answer, the Intent that you are using in setDayOfWeekAlarm() points to AlarmScreenActivity. That is not your BroadcastReceiver, nor is it any other component registered in your manifest.
BOOT_COMPLETED receivers cannot recieve a broadcast until an activity in the apk has been launched at least once. Its a weird rule google added to prevent people from downloading an app by mistake and having it run at boot.