Android栗子の双击事件

调用api

button.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return gestureDetector.onTouchEvent(event);
            }
        });

      GestureDetector gestureDetector = new GestureDetector(Activity.this, new GestureDetector.SimpleOnGestureListener() {

            /**
             * 发生确定的单击时执行
             * @param e
             * @return
             */
            @Override
            public boolean onSingleTapConfirmed(MotionEvent e) {//单击事件

                Toast.makeText(Activity.this,"这是单击事件", Toast.LENGTH_SHORT).show();
                return super.onSingleTapConfirmed(e);
            }

            /**
             * 双击发生时的通知
             * @param e
             * @return
             */
            @Override
            public boolean onDoubleTap(MotionEvent e) {//双击事件
                Toast.makeText(Activity.this,"这是单击事件",Toast.LENGTH_SHORT).show();
                return super.onDoubleTap(e);
            }

            /**
             * 双击手势过程中发生的事件，包括按下、移动和抬起事件
             * @param e
             * @return
             */
            @Override
            public boolean onDoubleTapEvent(MotionEvent e) {
                return super.onDoubleTapEvent(e);
            }
        });

自定义：

public class MainActivity extends Activity {


    long mLastTime=0;
    long mCurTime=0;

    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what) {
                case 1:
                    Toast.makeText(MainActivity.this,"这是单击事件",Toast.LENGTH_LONG).show();
                    break;
                case 2:
                    Toast.makeText(MainActivity.this,"这是双击事件",Toast.LENGTH_LONG).show();
                    break;
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                mLastTime=mCurTime;
                 mCurTime= System.currentTimeMillis();
                if(mCurTime-mLastTime<300){//双击事件
                    mCurTime =0;
                    mLastTime = 0;
                    handler.removeMessages(1);
                    handler.sendEmptyMessage(2);
                }else{//单击事件
                    handler.sendEmptyMessageDelayed(1, 310);
                }
            }
        });
    }
}