एंड्रॉयड onDown बिना LinearLayout पर कड़ी चोट इशारा जोड़ने के बारे में सच

Question

मैं एंड्रॉयड में इशारा गतिविधि पर काम कर रहा हूँ मैं कड़ी चोट कार्रवाई का पता लगाने के वर्ग में प्रयोग किया जाता है

public class ActivitySwipeDetector implements View.OnTouchListener { 

    static final String logTag = "ActivitySwipeDetector"; 
    private Activity activity; 
    static final int MIN_DISTANCE = 100; 
    private float downX, downY, upX, upY; 

    public ActivitySwipeDetector(Activity activity){ 
     this.activity = activity; 
    } 

    public void onRightToLeftSwipe(){ 
     Log.i(logTag, "RightToLeftSwipe!"); 
     Toast.makeText(activity, "RightToLeftSwipe", Toast.LENGTH_SHORT).show(); 
     //activity.doSomething(); 
    } 

    public void onLeftToRightSwipe(){ 
     Log.i(logTag, "LeftToRightSwipe!"); 
     Toast.makeText(activity, "LeftToRightSwipe", Toast.LENGTH_SHORT).show(); 
     //activity.doSomething(); 
    } 

    public void onTopToBottomSwipe(){ 
     Log.i(logTag, "onTopToBottomSwipe!"); 
     //Toast.makeText(activity, "onTopToBottomSwipe", Toast.LENGTH_SHORT).show(); 
     //activity.doSomething(); 
    } 

    public void onBottomToTopSwipe(){ 
     Log.i(logTag, "onBottomToTopSwipe!"); 
     //Toast.makeText(activity, "onBottomToTopSwipe", Toast.LENGTH_SHORT).show(); 
     //activity.doSomething(); 
    } 

    public boolean onTouch(View v, MotionEvent event) { 
     switch(event.getAction()){ 
     case MotionEvent.ACTION_DOWN: { 
      downX = event.getX(); 
      downY = event.getY(); 
      return true; 
     } 
     case MotionEvent.ACTION_UP: { 
      upX = event.getX(); 
      upY = event.getY(); 

      float deltaX = downX - upX; 
      float deltaY = downY - upY; 

      // swipe horizontal? 
        if(Math.abs(deltaX) > MIN_DISTANCE){ 
         // left or right 
         if(deltaX < 0) { this.onLeftToRightSwipe(); return true; } 
         if(deltaX > 0) { this.onRightToLeftSwipe(); return true; } 
        } 
        else { 
         Log.i(logTag, "Swipe was only " + Math.abs(deltaX) + " long, need at least " + MIN_DISTANCE); 
         return false; // We don't consume the event 
        } 

        // swipe vertical? 
        if(Math.abs(deltaY) > MIN_DISTANCE){ 
         // top or down 
         if(deltaY < 0) { this.onTopToBottomSwipe(); return true; } 
         if(deltaY > 0) { this.onBottomToTopSwipe(); return true; } 
        } 
        else { 
         Log.i(logTag, "Swipe was only " + Math.abs(deltaX) + " long, need at least " + MIN_DISTANCE); 
         return false; // We don't consume the event 
        } 

        return true; 
     } 
     } 
     return false; 
    } 

} 

मेरी xml फ़ाइल

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/action_settings" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".MainActivity" > 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="@string/hello_world" /> 

</LinearLayout> 

है और मेरे गतिविधि में मैं इस

ActivitySwipeDetector activitySwipeDetector = new ActivitySwipeDetector(this); 
     LinearLayout lowestLayout = (LinearLayout)this.findViewById(R.id.action_settings); 
     lowestLayout.setOnTouchListener(activitySwipeDetector); 

मैं ActivitySwipeDetector(this); तो इसका ठीक काम कर रहा बुलाया भरा एक साथ की तरह बुला ctivity। लेकिन मैं पूरी गतिविधि के लिए केवल LinearLayout पर स्वाइप डिटेक्टर को कैसे लागू कर सकता हूं। कृपया मेरी मदद करें।

Answer 1

मुझे के लिए आवश्यक और सबसे अच्छा आपके कोड था, इसलिए मैं थोड़ा,

public class RelativeLayoutTouchListener implements OnTouchListener { 

    static final String logTag = "ActivitySwipeDetector"; 
    private Activity activity; 
    static final int MIN_DISTANCE = 100;// TODO change this runtime based on screen resolution. for 1920x1080 is to small the 100 distance 
    private float downX, downY, upX, upY; 

    // private MainActivity mMainActivity; 

    public RelativeLayoutTouchListener(MainActivity mainActivity) { 
     activity = mainActivity; 
    } 

    public void onRightToLeftSwipe() { 
     Log.i(logTag, "RightToLeftSwipe!"); 
     Toast.makeText(activity, "RightToLeftSwipe", Toast.LENGTH_SHORT).show(); 
     // activity.doSomething(); 
    } 

    public void onLeftToRightSwipe() { 
     Log.i(logTag, "LeftToRightSwipe!"); 
     Toast.makeText(activity, "LeftToRightSwipe", Toast.LENGTH_SHORT).show(); 
     // activity.doSomething(); 
    } 

    public void onTopToBottomSwipe() { 
     Log.i(logTag, "onTopToBottomSwipe!"); 
     Toast.makeText(activity, "onTopToBottomSwipe", Toast.LENGTH_SHORT).show(); 
     // activity.doSomething(); 
    } 

    public void onBottomToTopSwipe() { 
     Log.i(logTag, "onBottomToTopSwipe!"); 
     Toast.makeText(activity, "onBottomToTopSwipe", Toast.LENGTH_SHORT).show(); 
     // activity.doSomething(); 
    } 

    public boolean onTouch(View v, MotionEvent event) { 
     switch (event.getAction()) { 
     case MotionEvent.ACTION_DOWN: { 
      downX = event.getX(); 
      downY = event.getY(); 
      return true; 
     } 
     case MotionEvent.ACTION_UP: { 
      upX = event.getX(); 
      upY = event.getY(); 

      float deltaX = downX - upX; 
      float deltaY = downY - upY; 

      // swipe horizontal? 
      if (Math.abs(deltaX) > MIN_DISTANCE) { 
       // left or right 
       if (deltaX < 0) { 
        this.onLeftToRightSwipe(); 
        return true; 
       } 
       if (deltaX > 0) { 
        this.onRightToLeftSwipe(); 
        return true; 
       } 
      } else { 
       Log.i(logTag, "Swipe was only " + Math.abs(deltaX) + " long horizontally, need at least " + MIN_DISTANCE); 
       // return false; // We don't consume the event 
      } 

      // swipe vertical? 
      if (Math.abs(deltaY) > MIN_DISTANCE) { 
       // top or down 
       if (deltaY < 0) { 
        this.onTopToBottomSwipe(); 
        return true; 
       } 
       if (deltaY > 0) { 
        this.onBottomToTopSwipe(); 
        return true; 
       } 
      } else { 
       Log.i(logTag, "Swipe was only " + Math.abs(deltaX) + " long vertically, need at least " + MIN_DISTANCE); 
       // return false; // We don't consume the event 
      } 

      return false; // no swipe horizontally and no swipe vertically 
     }// case MotionEvent.ACTION_UP: 
     } 
     return false; 
    } 

} 

प्रयोग अधिक ठीक की जरूरत है, देखते हैं कि टिप्पणी तय: मूल के साथ

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    rlTop = (RelativeLayout) findViewById(R.id.rlTop);  
    rlTop.setOnTouchListener(new RelativeLayoutTouchListener(this)); 
} 

Answer 2

मैं पड़ा है अच्छे परिणाम कोड। लेकिन श्रोता को एक दृश्य में जोड़ा जाना चाहिए, एक लेआउट नहीं। हम सब के बाद View.OnTouchListener का विस्तार कर रहे हैं।