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
Related
I want to create an alarm to create a notification.
The app that will create to Intent is not the same that will receive it.
I have that code, but it doesn't work, and I can't figure why :
First app:
package io.github.alucas.alarmsend;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toast.makeText(this, "Create alarm", Toast.LENGTH_SHORT).show();
final Intent intent = new Intent("io.github.alucas.alarmreceive.ALARM");
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 1000 * 5, alarmIntent);
Toast.makeText(this, "Send alarm", Toast.LENGTH_SHORT).show();
}
}
Second app :
package io.github.alucas.alarmreceive;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Receive alarm", Toast.LENGTH_SHORT).show();
}
}
Manifest :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="io.github.alucas.alarmreceive">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
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="io.github.alucas.alarmreceive.AlarmReceiver"
android:enabled="true">
<intent-filter>
<action android:name="io.github.alucas.alarmreceive.ALARM"/>
</intent-filter>
</receiver>
</application>
</manifest>
[edit1]
Adding the flowing line fixed my problem :
intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
Your second application has no activity. If you add an activity to your second app, install and run on the device, your code will work and the alarm will be delivered to the second application.
Adding the folowing line solved my problem :
intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
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 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);
I am making app which tracks user location continuously, so far i have been able to make a successful receiving of its ordinate on location change, but if he is restarting the phone than i am not able to start my service without user again opening the app.
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.aa.gpsdemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<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" >
<activity
android:name="com.aa.gpsdemo.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>
<service android:name=".MyService" android:label="My Service">
<intent-filter>
<action android:name="com.aa.gpsdemo.StartMyServiceAtBootReciever" />
</intent-filter>
</service>
<receiver
android:name=".receiver.StartMyServiceAtBootReceiver"
android:enabled="true"
android:exported="true"
android:label="StartMyServiceAtBootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
</application>
</manifest>
StartMyServiceAtBootReciever.java
package com.aa.gpsdemo;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class StartMyServiceAtBootReciever extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent serviceIntent = new Intent("com.aa.gpsdemo.BackgroundService");
context.startService(serviceIntent);
}
}
}
BackgroundService.java
package com.aa.gpsdemo;
import android.app.Service;
import android.content.Intent;
import android.content.Context;
import android.os.IBinder;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.widget.Toast;
import android.location.Criteria;
public class BackgroundService extends Service {
private static NewLocationListener mylistner=null;
private final static String TAG = "MainActivity";
private Context context = null;
#Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
mylistner = new NewLocationListener(context);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
criteria.setCostAllowed(true);
LocationManager locManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
String bestProvider=locManager.getBestProvider(criteria, true);
locManager.requestLocationUpdates(bestProvider,1000, 5, mylistner);
}
}
where i am going wrong any help would be highly appreciated on restart of a phone i get demoapp has stopped i tried putting toast on reciever but that toast also are not coming at present
Make Sure u have the permission in AndroidManifest File :
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Change this to :
#Override
public void onReceive(Context context, Intent intent) {
Intent serviceIntent = new Intent(context,BackgroundService.class);
startService(serviceIntent);
}
RECEIVE_BOOT_COMPLETED: Broadcast Action: This is broadcast once, after the system has finished booting. It can be used to perform application-specific initialization, such as installing alarms. You must hold the RECEIVE_BOOT_COMPLETED permission in order to receive this broadcast.
Refrence
Stackoverflow Question
I'm trying to set an alarm at boot time, and have it call an IntentService periodically via the AlarmManager. The AlarmReceiver is never triggered, not sure why.
BootReceiver:
package com.company.android;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.text.format.Time;
public class BootBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Time now = new Time();
now.setToNow();
Log.e("#######################COMM", "Booting up " + now.toString());
Intent alarmIntent = new Intent("com.company.android.AlarmReceiver");
PendingIntent pi = PendingIntent.getBroadcast(context, 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, System.currentTimeMillis(), 1000 * 5, pi);
Log.e("#######################COMM", "Booted up " + now.toString());
}
}
AlarmReceiver:
package com.company.android;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
/**
* Created by mlaino on 7/8/13.
*/
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("COMM", "Pre");
Intent i = new Intent("com.company.android.PollingService");
context.startService(i);
Log.d("COMM","Pos");
}
}
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.company.android" android:versionCode="1" android:versionName="1.0-SNAPSHOT">
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="15" />
<application android:icon="#drawable/icon" android:label="#string/app_name">
<receiver android:name=".BootBroadcastReceiver"
android:enabled="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
<receiver android:name=".AlarmReceiver">
<intent-filter>
<action android:name="com.company.android.AlarmReceiver" />
</intent-filter>
</receiver>
<activity android:name=".CommunicationsManagerActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".PollingService" >
<intent-filter>
<action android:name="com.company.android.PollingService" />
</intent-filter>
</service>
</application>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
</manifest>
Any clues?
Thanks
First, remove android:permission="android.permission.RECEIVE_BOOT_COMPLETED", as you are saying that whatever is calling your receiver must hold that permission, which may or may not be the case.
Then, be sure to run one of your activities before rebooting, as manifest-registered BraodcastReceivers will not work until something explicitly runs one of your components, typically accomplished by the user launching an activity.