This is how to make an activity start running after android device reboot:
Insert this code in your AndroidManifest.xml
file, within the <application>
element (not within the <activity>
element):
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver
android:enabled="true"
android:exported="true"
android:name="yourpackage.yourActivityRunOnStartup"
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>
Then create a new class yourActivityRunOnStartup
(matching the android:name
specified for the <receiver>
element in the manifest):
package yourpackage;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class yourActivityRunOnStartup extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
Intent i = new Intent(context, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
}
Note:
The call i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
is important because the activity is launched from a context outside the activity. Without this, the activity will not start.
Also, the values android:enabled
, android:exported
and android:permission
in the <receiver>
tag do not seem mandatory. The app receives the event without these values. See the example here.