Android onClick

在layout中直接声明onclick方法：

<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"/>

此处方法作用域必须是public，否则会出错

public void onCaptureClick(View v) {// TODO Auto-generated method stubif(isRecording) {    mRecorder.stop();    releaseMediaRecorder();    mCamera.lock();    setButtonCaptureText("Capture");    isRecording = false;    releaseCamera();} else {    new MediaPrepareTask().execute(null, null, null);}}