package htdinc.howtodrink; import android.content.Context; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final Button bouton = (Button) findViewById(R.id.button); bouton.setOnClickListener(new View.OnClickListener(){ public void onClick(View v) { Context context = getApplicationContext(); CharSequence text = "Ceci est un boutton bite !"; int duration = Toast.LENGTH_SHORT; Toast.makeText(context,text,duration).show(); } }); } }