OnClickListener btn2_events = new OnClickListener() { @Override public void onClick(View v) { //Here you must use "MainActivity.this" for the parameter Context. //You can not use "getApplicationContext()" any more! Dialog dlg = new AlertDialog.Builder(MainActivity.this) .setTitle("A question") .setMessage("How many people are there in your home?") .setPositiveButton("Four", null) .setNegativeButton("Three", null) .create(); dlg.show(); } }; findViewById(R.id.button2).setOnClickListener(btn2_events);
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