Start new Activity From BroadcastReceiver or Service Class

Hello have to start a new Activity from the BroascastReceiver or the Service, but I have found error that cant start activity without activity context.

I use the following code

Intent i=new Intent(this,MyActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
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And also include the activity in Mainifest file,

Please resolve it,

And another second problem is, I start a service inside the BroadcastReceiver but this Service finish when BroadcastReceiver lifecycle completes. I want to keep alive the Serive

Please help me on this

While I can't provide solution to your 1st question, I'll answer the second one.

@Override
public void onReceive(Context context, Intent intent) {
    Intent intent = new Intent(context, SampleService.class);
    context.getApplicationContext().startService(intent);       
}

Also, Android SDK developers don't recommend to start activities from broadcast receivers or services.

use context instead of this like this:

Intent i=new Intent(context,MyActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);

register your service in the manifest file and use startservice.

This code worked fine for me

public void onReceive(Context context, Intent intent) {
    Log.v(Tag, "Start Listening Phone Call");
    TelephonyManager tm = (TelephonyManager) context
            .getSystemService(Context.TELEPHONY_SERVICE);

    switch (tm.getCallState()) {
    case TelephonyManager.CALL_STATE_IDLE:
        Log.v(Tag, "No call");
        break;
    case TelephonyManager.CALL_STATE_RINGING:
        Log.v(Tag, "A new call arrived and is ringing or waiting");
        Intent i = new Intent(context,MyActivity.class);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
        break;
    }