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Question

में नल [GestureDetector.OnGestureListener] [1] वर्ग विधि [onSingleTapUp (MotionEvent)] [2] है:

अधिसूचित एक नल अप MotionEvent कुए के साथ तब होता है जब शुरू हो रहा यह।

इस विधि पर एक ही ऑनक्लिक कार्य है? क्या मैं ऑनक्लिक विधि से वही व्यवहार लागू करने के लिए इस विधि का उपयोग कर सकता हूं?

Answer 1

मैंने कुछ परीक्षण किए और ऐसा लगता है कि उत्तर हाँ है, तो आप ऑनक्लिक के बजाय SingleTapUp पर उपयोग कर सकते हैं। OnSingleTapUp विधि डबल या लंबे क्लिक के एक साधारण क्लिक को अच्छी तरह से अलग कर सकती है। मेरा परीक्षण: साधारण क्लिक के लिए

public class MainFragmentScrollerController 
{ 
    private MainFragment mFragment; 
    private GestureDetectorCompat mGestureDetector; 

    public MainFragmentScrollerController(MainFragment fragment) 
    { 
     mFragment = fragment; 
     mGestureDetector = new GestureDetectorCompat(mFragment.getActivity(), new GestureListener()); 
    } 

    public void setGestureListener() 
    { 
     mFragment.myView.setOnTouchListener(new OnTouchListener() 
     { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) 
      { 
       boolean gestureResult = mGestureDetector.onTouchEvent(event); 
       Log.i("GestureListener", "gestureResult = " + gestureResult); 
       return gestureResult; 
      } 
     }); 
    } 

    public class GestureListener extends SimpleOnGestureListener 
    { 
     private final String TAG = "GestureListener"; 
     @Override 
     public boolean onDown(MotionEvent event) 
     { 
      Log.d(TAG,"onDown: " + event.toString()); 
      return true; 
     } 

     @Override 
     public boolean onFling(MotionEvent event1, MotionEvent event2, float velocityX, float velocityY) 
     { 
      Log.d(TAG, "onFling: " + event1.toString()+event2.toString()); 
      return true; 
     } 

     @Override 
     public boolean onScroll(MotionEvent event1, MotionEvent event2, float distanceX, float distanceY) 
     { 
      Log.d(TAG, "onScroll: " + event1.toString()+event2.toString()); 
      return true; 
     } 

     @Override 
     public boolean onSingleTapUp(MotionEvent event) 
     { 
      Log.d(TAG, "onSingleTapUp: " + event.toString()); 
      return true; 
     } 

     @Override 
     public void onLongPress(MotionEvent event) 
     { 
      Log.d(TAG, "onLongPress: " + event.toString()); 
     } 
    } 
} 

परिणाम:

09-04 14:22:12.520: D/GestureListener(17689): onDown: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=179.22656, y[0]=41.0625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34538199, downTime=34538199, deviceId=1, source=0x1002 } 
09-04 14:22:12.520: I/GestureListener(17689): gestureResult = true 
09-04 14:22:12.560: I/GestureListener(17689): gestureResult = false 
09-04 14:22:12.930: I/GestureListener(17689): gestureResult = false 
09-04 14:22:12.950: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.010: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.100: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.130: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.150: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.180: I/GestureListener(17689): gestureResult = false 
09-04 14:22:13.200: D/GestureListener(17689): onLongPress: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=179.22656, y[0]=41.0625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34538199, downTime=34538199, deviceId=1, source=0x1002 } 
09-04 14:22:13.230: I/GestureListener(17689): gestureResult = false 

फ़्लिंग के लिए परिणाम::

09-04 14:24:09.650: D/GestureListener(17689): onDown: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=332.15625, y[0]=2.625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34655337, downTime=34655337, deviceId=1, source=0x1002 } 
09-04 14:24:09.650: I/GestureListener(17689): gestureResult = true 
09-04 14:24:09.690: D/GestureListener(17689): onScroll: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=332.15625, y[0]=2.625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34655337, downTime=34655337, deviceId=1, source=0x1002 }MotionEvent { action=ACTION_MOVE, id[0]=0, x[0]=331.9604, y[0]=-72.36835, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=34655368, downTime=34655337, deviceId=1, source=0x1002 } 
09-04 14:24:09.690: I/GestureListener(17689): gestureResult = true 
09-04 14:24:09.710: D/GestureListener(17689): onScroll: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=332.15625, y[0]=2.625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34655337, downTime=34655337, deviceId=1, source=0x1002 }MotionEvent { action=ACTION_MOVE, id[0]=0, x[0]=337.91425, y[0]=-124.40411, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=34655385, downTime=34655337, deviceId=1, source=0x1002 } 
09-04 14:24:09.710: I/GestureListener(17689): gestureResult = true 
09-04 14:24:09.730: D/GestureListener(17689): onFling: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=332.15625, y[0]=2.625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34655337, downTime=34655337, deviceId=1, source=0x1002 }MotionEvent { action=ACTION_UP, id[0]=0, x[0]=337.91425, y[0]=-124.40411, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34655414, downTime=34655337, deviceId=1, source=0x1002 } 
09-04 14:24:09.730: I/GestureListener(17689): gestureResult = true 

लंबे क्लिक के लिए

09-04 14:20:58.040: D/GestureListener(17689): onDown: MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=188.71875, y[0]=26.0625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34463725, downTime=34463725, deviceId=1, source=0x1002 } 
09-04 14:20:58.040: I/GestureListener(17689): gestureResult = true 
09-04 14:20:58.100: I/GestureListener(17689): gestureResult = false 
09-04 14:20:58.130: D/GestureListener(17689): onSingleTapUp: MotionEvent { action=ACTION_UP, id[0]=0, x[0]=188.71875, y[0]=26.0625, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=34463811, downTime=34463725, deviceId=1, source=0x1002 } 
09-04 14:20:58.130: I/GestureListener(17689): gestureResult = true 

परिणाम