package com.example.buttonimagedemo; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.ImageButton; import android.widget.Toast; import com.example.imageviewdemo.R; public class MainImageActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_image); ImageButton btn=(ImageButton) findViewById(R.id.imageButton1); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(getBaseContext(), "hello", Toast.LENGTH_SHORT).show(); } }); } }