public class MainActivity extends ActionBarActivity {
ImageView imageView;
    Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ImageView ImageView = (ImageView) findViewById(R.id.imageView);
        ImageView.setImageDrawable(getResources().getDrawable(R.drawable.ic_accessibility_black_48dp));
        button = (Button) findViewById(R.id.button);
         View.OnClickListener onClickListener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                switch (view.getId()) {
                    case R.id.button:
                        imageView.setImageDrawable(getResources().getDrawable(R.drawable.ic_chat_bubble_outline_black_48dp));

                }


            }
        };
        imageView.setOnClickListener(onClickListener);

    }