Android Firing Intent From Thread

I have created a thread for a game where I am testing if hero (a bitmap) touches the edges of the screen. Part of the Thread: protected void updatePhysics() { mBallX += elapsed * m

Solution 1:

The first parameter of Intent's constructor is a Context. You must pass the activity where the Thread is being executed, for instance:

Intent intent_btn_gameover = new Intent(NameOfActivity.this, GameOver.class);   
startActivity(intent_btn_gameover);

If the thread is not inside an activity, you must pass somehow a reference to the activity that executes it.

Solution 2:

If you are starting an activity from your Thread and you have context then you should do like

Intent intent = new Intent(contextOfSourceClass,YourTargetActivity.class);
contextOfSourceClass.startActivity(intent);

because method startActivity(Intent intent) belongs to context class

we are able to call this method directly from our activity because Context is super parent class of Activity in Hierarchy.