I am simply trying to implement the AlarmManager. I wrote the code for alarm manager but the code doesnot work. AlarmManager doesnot fire the Broadcast Receiver and service. But when I donot use the AlarmManager and simply start the service using intent the service run. How to make AlarmManager work to schedule the service periodically?
Below is the code:
MainActivity.java
package com.alarmmanager;
import android.app.*;
import android.os.Bundle;
import android.content.*;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent(this,AlarmReceiver.class);
PendingIntent pending =PendingIntent.getService(this, 0, intent, 0);
AlarmManager alarm =(AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
alarm.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis(),15000,pending);
}
}
AlarmReceiver.java
package com.alarmmanager;
import android.content.*;
public class AlarmReceiver extends BroadcastReceiver
{
public void onReceive(Context context, Intent intent)
{
intent =new Intent(context,MainService.class);
context.startService(intent);
}
}
MainService.java
package com.alarmmanager;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class MainService extends Service
{
public IBinder onBind(Intent intent) {
return null;
}
public void onCreate() {
Log.i("nilavs","nilav");
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.alarmmanager"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="23" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<service
android:name=".MainService"
android:enabled="true"
/>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:process=":remote" android:name=".AlarmReceiver">
</receiver>
</application>
</manifest>
You should use getBroadcast instead of getService?
PendingIntent pending =PendingIntent.getService(this, 0, intent, 0);
Edit:
Try setting it to fire off in the future initially - e.g.
alarm.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis()+5000,15000,pending);
Related
I have a problem with running the service. In the logs there is nothing to see that the service is running. So I don't know that she works. Toast also does not show in MainActivity. I read a lot of posts and none work. How to fix it?
Service
import android.app.Service;
import android.os.IBinder;
import android.widget.Toast;
import android.content.Intent;
public class AutoStartUp extends Service {
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate() {
super.onCreate();
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
// do something when the service is created
}
}
BroadcastReceiver
import android.content.Context;
import android.content.BroadcastReceiver;
import android.content.Intent;
public class BootComplete extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED)) {
Intent serviceIntent = new Intent(context, AutoStartUp.class);
context.startService(serviceIntent);
}
}
}
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="kamiszczu.ovh.servicetest3">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" >
</uses-permission>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<receiver
android:name="kamiszczu.ovh.servicetest3.BootComplete"
android:enabled="true"
android:exported="false" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service
android:name="kamiszczu.ovh.servicetest3.AutoStartUp"
android:enabled="true">
</service>
<activity
android:name=".MainActivity"
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>
</application>
</manifest>
You don't have to verify the intent type since the
Receiver is registered with only one intent type(Intent.ACTION_BOOT_COMPLETED). So there is no need to check in the receiver if the intent action is Intent.ACTION_BOOT_COMPLETED.
I think the condition in the receiver is not true and because of that the code that starts your service is not executed.
I've tried:
This which doesn't work on my phone:
Trying to start a service on boot on Android
This which also fails to work properly:
http://www.compiletimeerror.com/2014/12/android-autostart-app-after-boot-with.html#.VpL6sxWLTIU
And a few others which I couldn't find again. Could someone please post a working example of code which will start a MainActivity with the default HelloWorld xml layout?
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver android:name=".MyBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity
android:name=".MyService"
android:label="#string/title_activity_my_service" >
</activity>
</application>
</manifest>
package com.example;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent startServiceIntent = new Intent(context, MyService.class);
context.startService(startServiceIntent);
}
}
package com.example;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MyService extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_service);
}
}
First：create a BroadcastReceiver, onReceive(Context context, Intent intent)，start the app you want to startup in this method
public class BootBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
xxx.class is the app you want to start
Intent service = new Intent(context,XXXclass);
context.startService(service);
Log.v("TAG", "you want to startup this app.....");
Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);
context.startActivity(intent );
} }
Secondly:configure receiver and intent-filter
<receiver android:name="BootBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"></action>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</receiver>
THirdly,add permission
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
I am creating an app with will run everyday morning onetime. I am getting RunTimeException error so unable to understand, if the app is really running or not?
error is: Unable to instantiate receiver. even if I declared receiver in my manifest
MainSchedulerClass.java
package com.example.displayscheduler;
import java.util.Calendar;
import java.util.TimeZone;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class MyScheduler extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.schedule);
setRecurringAlarm(this);
}
private void setRecurringAlarm(Context context) {
Calendar updateTime = Calendar.getInstance();
updateTime.setTimeZone(TimeZone.getTimeZone("GMT+5:00"));
updateTime.set(Calendar.HOUR_OF_DAY, 10);
updateTime.set(Calendar.MINUTE, 00);
Intent intent = new Intent(context, Tasks.class);
PendingIntent recurringDownload = PendingIntent.getBroadcast(context,
0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarms = (AlarmManager) this.getSystemService(
Context.ALARM_SERVICE);
alarms.setInexactRepeating(AlarmManager.RTC_WAKEUP,
updateTime.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, recurringDownload);
}
}
Tasks.java
package com.example.displayscheduler;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class Tasks extends BroadcastReceiver {
final public static String ONE_TIME = "onetime";
#Override
public void onReceive(Context context, Intent intent) {
Log.i(ONE_TIME, "Executed Tasks.Java File");
//Some task here for every morning
Toast.makeText(context, "Start Displaying Pictures", Toast.LENGTH_LONG).show();
}
}
manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.displayscheduler"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.VIBRATE"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MyScheduler"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Tasks"
android:enabled="true"
android:label="#string/app_name" >
</activity>
<receiver android:name="com.example.displayscheduler.MyScheduler" >
</receiver>
</application>
</manifest>
You wrote activity name in receiver tag, change it to Tasks i.e your BroadcastReceiver class.
Replace this:
<receiver android:name="com.example.displayscheduler.MyScheduler" >
</receiver>
to this:
<receiver android:name="com.example.displayscheduler.Tasks" >
</receiver>
in your AndroidManifest.xml
MyScheduler class is not broadcast receiver you must change it with task in manifest.xml
<receiver android:name="com.example.displayscheduler.Task" >
</receiver>
Make sure that the java file name is same as your receiver name.
Rename your java file Tasks.java to MyScheduler.java
refer this sample https://developer.android.com/training/scheduling/alarms.html
im trying to start an application on device boot.
my code is as follow
1- firstly the main class which contain a background thread (asynctask) that send data to a mysql database.
2- Service class
package com.seven.ex.helper;
import com.seven.ex.AndroidGPSTrackingActivity;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class service extends Service {
private static final String TAG = "MyService";
#Override
public IBinder onBind(Intent intent) {
return null;
}
public void onDestroy() {
Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
Log.d(TAG, "onDestroy");
}
#Override
public void onStart(Intent intent, int startid)
{
Intent intents = new Intent(getBaseContext(),AndroidGPSTrackingActivity.class);
intents.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intents);
Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
Log.d(TAG, "onStart");
}
}
3- BootUpReceiver class
package com.seven.ex.helper;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class BootUpReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context arg0, Intent arg1) {
Intent intent = new Intent(arg0,service.class);
arg0.startService(intent);
Log.i("Autostart", "started");
}
}
4- the android manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.gpstracking"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name="com.seven.gpstracking.AndroidGPSTrackingActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".service"
android:label="#string/app_name"
>
</service>
<receiver android:enabled="true" android:name=".BootUpReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>
</manifest>
The main method is working correctly before i tried to start it on boot.
Also the app still working after i ignore the android error on boot (The App Closed)
in the log cat am getting a class not found exception
can you please help ?
Your Service won't work like it is at the moment. You will have to move the stuff from onStart() to onStartCommand() and then return whether the service is sticky or not. The problem is that the onStart()-method has a good chance of not getting called at all (as it is deprectaed by now).
#Override
public int onStartCommand(final Intent intent, final int flags, final int startId) {
//do your stuff here
return Service.START_NOT_STICKY;
}
In your manifest you have assigned package: com.example.gpstracking. When u then define .BootUpReceiver. The system should expect to locate the class at com.example.gpstracking.BootUpReceiver.
Please try and change the package .BootUpReceiver to the full path com.seven.ex.helper.BootUpReceiver. The same goes for AndroidGPSTrackingActivity as this should be com.seven.ex.AndroidGPSTrackingActivity as far as I can tell.
Main Activity Code. BroadcastExample.java
package com.example.broadcast;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class BroadcastExaple extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("PHONE", "Main Activity...Called");
setContentView(R.layout.main);
Log.d("PHONE", "After Mainf Activity...");
}
}
MyBroadCastReceiver.java
package com.example.broadcast;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
public class MyBroadcastReceiver extends BroadcastReceiver {
#Override
/*public void onReceive(Context context, Intent intent) {
try{
Log.d("Call BroadCAST","Calling Broad CAST");
MyPhoneStateListener phoneListener = new MyPhoneStateListener();
TelephonyManager telephony = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
telephony.listen(phoneListener, PhoneStateListener.LISTEN_CALL_STATE);
}
catch(Exception e)
{
}
}*/
public void onReceive(Context context, Intent intent) {
Log.d("Message", "Message Received");
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.broadcast" android:versionCode="1"
android:versionName="1.0">
<uses-prmission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE"/>
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name=".BroadcastExaple" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".MyBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
</application>
<uses-sdk android:minSdkVersion="7" />
</manifest>
Program doesn't enter into the onReceive Mathod of MyBroadCastReceiver class.
First, i suggest you to format your code here. So that people here will be glad to read your problem code.
Your code list above does NOT register any BroadcastReceiver to the system. You'd better to check out ApiDemo for more details.