android手势滑动——左右滑动效果实现

/** * 手势监听 *  * @author lifengfeng *  */public class MainActivity extends Activity implements OnTouchListener,OnGestureListener {// 创建一个用于识别收拾的GestureDetector对象@SuppressWarnings("deprecation")private GestureDetector detector = new GestureDetector(this);// 新建一个LinearLayout布局对象，这里是指主页面的布局private LinearLayout myLayout;// 限制最小移动像素private int FLING_MIN_DISTANCE = 110;// 定义的Toast提示框显示时间private int TIME_OUT = 1000;private static final String TAG = "Main";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);myLayout = (LinearLayout) findViewById(R.id.test_layout);// 为布局绑定监听myLayout.setOnTouchListener(this);}/** * 手势滑动时别调用 */@Overridepublic boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {// X轴的坐标位移大于FLING_MIN_DISTANCE，且移动速度大于FLING_MIN_VELOCITY个像素/秒if (e1.getX() - e2.getX() > FLING_MIN_DISTANCE) {// 向左滑动Toast.makeText(this, "向左滑动", TIME_OUT).show();} else if (e2.getX() - e1.getX() > FLING_MIN_DISTANCE) {// 向右滑动Toast.makeText(this, "向右滑动", TIME_OUT).show();}return false;}/** * 长按时被调用 */@Overridepublic void onLongPress(MotionEvent e) {Log.d(TAG, "触发长按回调");}/** * 滚动时调用 */@Overridepublic boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,float distanceY) {return false;}/** * 在按下动作时被调用 */@Overridepublic boolean onDown(MotionEvent e) {Log.d(TAG, "按下回调");return false;}/** * 按住时被调用 */@Overridepublic void onShowPress(MotionEvent e) {Log.d(TAG, "按住不松回调");}/** * 抬起时被调用 */@Overridepublic boolean onSingleTapUp(MotionEvent e) {Log.d(TAG, "触发抬起回调");return false;}/** * 重写OnTouchListener的onTouch方法 此方法在触摸屏被触摸，即发生触摸事件（接触和抚摸两个事件）的时候被调用 */@Overridepublic boolean onTouch(View v, MotionEvent event) {detector.onTouchEvent(event);return true;}}
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