im cercando di fare qualcosa di simile a questo: android: how to listen to "sd card removed unexpectedly" ma OnReceive di chi ascolta non viene mai chiamato, quando non ho sdcard montato o rimuovo sdcard. Ecco il codice.ascoltatore per la rimozione sdcard
public class MyClass1 extends Activity{
BroadcastReceiver mSDCardStateChangeListener = null;
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSDCardStateChangeListener = MyClass2.registerSDCardStateChangeListener(this);
//some code which needs SDCard and throws unhandled exception if sdcard is not there
}
@Override
protected void onDestroy()
{
MyClass2.unRegisterSDCardStateChangeListener(this, mSDCardStateChangeListener);
super.onDestroy();
}
//in MyClass2
public static BroadcastReceiver registerSDCardStateChangeListener(Activity act) {
BroadcastReceiver mSDCardStateChangeListener = new BroadcastReceiver() {
@Override
public void onReceive(Context arg0, Intent arg1) {
String action = arg1.getAction();
if(action.equalsIgnoreCase(Intent.ACTION_MEDIA_REMOVED)
|| action.equalsIgnoreCase(Intent.ACTION_MEDIA_UNMOUNTED)
|| action.equalsIgnoreCase(Intent.ACTION_MEDIA_BAD_REMOVAL)
|| action.equalsIgnoreCase(Intent.ACTION_MEDIA_EJECT))
{
//i never come here ;(
//do something
}
}
};
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_MEDIA_REMOVED);
filter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
filter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
filter.addAction(Intent.ACTION_MEDIA_EJECT);
filter.addDataScheme("file");
act.registerReceiver(mSDCardStateChangeListener, filter);
return mSDCardStateChangeListener;
}
public static void unRegisterSDCardStateChangeListener(Activity act, BroadcastReceiver mSDCardStateChangeListener)
{
act.unregisterReceiver(mSDCardStateChangeListener);
}
non voglio verificare se sdcard è presente o meno da se (android.os.Environment.getExternalStorageState(). Equals (android.os.Environment.MEDIA_MOUNTED)) ma utilizzare il ricevitore, invece. Qualsiasi aiuto è benvenuto. Grazie !.
hai impostato le tue autorizzazioni nel file manifest? – Lukap
@Lukap ho Android.permission.READ_PHONE_STATE nel mio manifest –
@ con_9 Hai ragione, mi dispiace. – Caner