Android Gesture Slide (Left Slide and Right Slide)

Recently, I want to realize the function of Android sliding left pop-up menu box and sliding right disappearing menu. Understand that the sliding event of Android under 1 must be implemented on view component or Activity, and two interfaces, OnTouchListener and OnGestureListener, must be implemented at the same time.

public class MyRelativeLayout extends RelativeLayout implements GestureDetector.OnGestureListener{
 private float mPosX, mPosY, mCurPosX, mCurPosY;
 private static final int FLING_MIN_DISTANCE = 20;//  Moving minimum distance 
 private static final int FLING_MIN_VELOCITY = 200;//  Maximum moving speed 
 // Building a gesture detector  
 GestureDetector mygesture = new GestureDetector(this);
 public MyRelativeLayout(Context context){
 super(context)
 }

 public MyRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
 super(context, attrs, defStyle);
 // TODO Auto-generated constructor stub
 }

 public MyRelativeLayout(Context context, AttributeSet attrs) {
 super(context, attrs);
 // TODO Auto-generated constructor stub
 }
 @Override
 public boolean onTouchEvent(MotionEvent arg0) {
 // TODO Auto-generated method stub
 return mDetector.onTouchEvent(arg0);

 }

 @Override
 public boolean onSingleTapUp(MotionEvent e) {
 // TODO Auto-generated method stub
 return false;
 }

 @Override
 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
    float distanceY) {
 // TODO Auto-generated method stub
 return false;
 }

 @Override
 public boolean onDown(MotionEvent e) {
 // TODO Auto-generated method stub
 return false;
 }


 @Override
 public void onShowPress(MotionEvent e) {
 // TODO Auto-generated method stub

 }

 @Override
 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
  float velocityY) {
 // TODO Auto-generated method stub
 // e1 : No. 1 1 A ACTION_DOWN MotionEvent 
 // e2 : Finally 1 A ACTION_MOVE MotionEvent 
 // velocityX : X Moving speed on the axis (pixels) / Seconds)  
 // velocityY : Y Moving speed on the axis (pixels) / Seconds)  

 // X The coordinate displacement of the axis is greater than FLING_MIN_DISTANCE And the moving speed is greater than FLING_MIN_VELOCITY Pixels / Seconds  
 // To the left  
 if (e1.getY() - e2.getY() > FLING_MIN_DISTANCE){ 
//   && Math.abs(velocityX) > FLING_MIN_VELOCITY) { 
  collapse();
  } 
 // Up  
 if (e2.getY() - e1.getY() > FLING_MIN_DISTANCE 
   && Math.abs(velocityX) > FLING_MIN_VELOCITY) {

 } 
  return false; 
 } 
}

Add another paragraph to realize the gesture sliding effect:

Gesture sliding is actually a touch event

public class PhoneGuard01 extends Activity {
 private GestureDetector mGestureDetector;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_phone_guard01);
 // Creating Gesture Recognition Objects , And create a monitor for gesture recognition  
 mGestureDetector = new GestureDetector(this,new SimpleOnGestureListener(){

  // This method needs to be overridden by itself 
  @Override
  public boolean onFling(MotionEvent e1, MotionEvent e2,
   float velocityX, float velocityY) {

  float X1=e1.getX();// Get the coordinate point pressed down ,X Shaft 
  float X2=e2.getX();// Get the lifted coordinate point ,Y Shaft 


  float Y1=e1.getY();// Get pressed Y Axial coordinate point 
  float Y2=e1.getY();// Get lifted Y Axial coordinate point 

  //Y The moving distance of, compared with X  The moving distance of is large, so do not do any operation 
  if(Math.abs(Y1-Y2)>Math.abs(X1-X2)){

   return false;
  }


  if(X1>X2){// Represents under 1 Page 
   nextPage(null);
  }  
  return super.onFling(e1, e2, velocityX, velocityY);
  }

 });

 }

 /**
  The following code means that , Touch events recognized by your gesture ,
  Let the parent class call 

 */

 //onTouchEvent(MotionEvent event) Is inherited from View Object's 
 @Override
 public boolean onTouchEvent(MotionEvent event) {
 //mGestureDetector.onTouchEvent(event) Yes GestureDetector Your own 
 mGestureDetector.onTouchEvent(event);
 return super.onTouchEvent(event);
 }

//----------------- The above is the code implementation of gesture recognition ------------------------------
 // Jump to the next 1 Pages 
 public void nextPage(View v){ 
 Intent intent=new Intent(this,PhoneGuard02.class);

 startActivity(intent);
 finish();

 }

}