4. Custom dialog using custom view

final AlertDialog dialog2 = new AlertDialog.Builder(MainActivity.this).create();
View inflate = getLayoutInflater().inflate(R.layout.cust, null);
dialog2.setView(inflate);
dialog2.setTitle("Welcome");
Button but1 = (Button) inflate.findViewById(R.id.button1);
Button but2 = (Button) inflate.findViewById(R.id.button2);
but1.setOnClickListener(new OnClickListener() { public void onClick(View view) {
MainActivity.this.finish(); } });
but2.setOnClickListener(new OnClickListener() { public void onClick(View view) { dialog2.dismiss(); } });
dialog2.show();