Android onClick

<Button
android:id="@+id/button_capture"
android:layout_width = "fill_parent"
android:layout_height="wrap_content"
android:layout_gravity = "bottom"
android:onClick = "onCaptureClick"
android:text="@string/btnCapture"/>

public void onCaptureClick(View v) {
// TODO Auto-generated method stub
if(isRecording) {
mRecorder.stop();
releaseMediaRecorder();

mCamera.lock();

setButtonCaptureText("Capture");
isRecording = false;
releaseCamera();
} else {
new MediaPrepareTask().execute(null, null, null);
}
}