Android Swipe手势无法在S4中运行

Question

我在我的应用程序中使用滑动手势。它在Grand Quattro和Samsung Note II中运行良好。但它不适用于S4。

我已按照以下链接中提供的代码进行操作：

http://androidexample.com/Android_Basic_Tutorial/index.php?view=article_discription&aid=95&aaid=118

下面是我正在实现SimpleGestureListner接口的Activity类。

    public MyActivity extends Activity implements SimpleGestureListener
{

private SimpleGestureFilter detector;


@Override
protected void onCreate(Bundle savedInstanceState) {
// Detect touched area 
detector = new SimpleGestureFilter(this,this);
}

@Override
public boolean dispatchTouchEvent(MotionEvent me){
// Call onTouchEvent of SimpleGestureFilter class
this.detector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
@Override
public void onSwipe(int direction) {

String str = "";

switch (direction) {

case SimpleGestureFilter.SWIPE_RIGHT : str = "Swipe Right";
break;
case SimpleGestureFilter.SWIPE_LEFT :  str = "Swipe Left";
break;
case SimpleGestureFilter.SWIPE_DOWN :  str = "Swipe Down";
break;
case SimpleGestureFilter.SWIPE_UP :    str = "Swipe Up";
break;       
}     
Toast.makeText(this, str, Toast.LENGTH_LONG).show();
}

@Override
public void onDoubleTap() {     

}   
}





Below is my interface SimpleGestureFilter which I have implemented in my activity.

public class SimpleGestureFilter extends SimpleOnGestureListener {
public final static int SWIPE_UP    = 1;
public final static int SWIPE_DOWN  = 2;
public final static int SWIPE_LEFT  = 3;
public final static int SWIPE_RIGHT = 4;

public final static int MODE_TRANSPARENT = 0;
public final static int MODE_SOLID       = 1;
public final static int MODE_DYNAMIC     = 2;

private final static int ACTION_FAKE = -13; //just an unlikely number
private int swipe_Min_Distance = 100;
private int swipe_Max_Distance = 350;
private int swipe_Min_Velocity = 100;

private int mode             = MODE_DYNAMIC;
private boolean running      = true;
private boolean tapIndicator = false;

private Activity context;
private GestureDetector detector;
private SimpleGestureListener listener;

public SimpleGestureFilter(Activity context,SimpleGestureListener sgl) {

this.context = context;
this.detector = new GestureDetector(context, this);
this.listener = sgl;
}


public void onTouchEvent(MotionEvent event){

if(!this.running)
return; 

boolean result = this.detector.onTouchEvent(event);

if(this.mode == MODE_SOLID)
event.setAction(MotionEvent.ACTION_CANCEL);
else if (this.mode == MODE_DYNAMIC) {

if(event.getAction() == ACTION_FAKE)
event.setAction(MotionEvent.ACTION_UP);
else if (result)
event.setAction(MotionEvent.ACTION_CANCEL);
else if(this.tapIndicator){
event.setAction(MotionEvent.ACTION_DOWN);
this.tapIndicator = false;
}

}
//else just do nothing, it's Transparent
}

public void setMode(int m){
this.mode = m;
}

public int getMode(){
return this.mode;
}

public void setEnabled(boolean status){
this.running = status;
}

public void setSwipeMaxDistance(int distance){
this.swipe_Max_Distance = distance;
}

public void setSwipeMinDistance(int distance){
this.swipe_Min_Distance = distance;
}

public void setSwipeMinVelocity(int distance){
this.swipe_Min_Velocity = distance;
}

public int getSwipeMaxDistance(){
return this.swipe_Max_Distance;
}

public int getSwipeMinDistance(){
return this.swipe_Min_Distance;
}

public int getSwipeMinVelocity(){
return this.swipe_Min_Velocity;
}

@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {

final float xDistance = Math.abs(e1.getX() - e2.getX());
final float yDistance = Math.abs(e1.getY() - e2.getY());

if(xDistance > this.swipe_Max_Distance || yDistance > this.swipe_Max_Distance)
return false;

velocityX = Math.abs(velocityX);
velocityY = Math.abs(velocityY);
boolean result = false;

if(velocityX > this.swipe_Min_Velocity && xDistance > this.swipe_Min_Distance){
if(e1.getX() > e2.getX()) // right to left
this.listener.onSwipe(SWIPE_LEFT);
else
this.listener.onSwipe(SWIPE_RIGHT);

result = true;
}
else if(velocityY > this.swipe_Min_Velocity && yDistance > this.swipe_Min_Distance){
if(e1.getY() > e2.getY()) // bottom to up
this.listener.onSwipe(SWIPE_UP);
else
this.listener.onSwipe(SWIPE_DOWN);

result = true;
}

return result;
}


@Override
public boolean onSingleTapUp(MotionEvent e) {
this.tapIndicator = true;
return false;
}

@Override
public boolean onDoubleTap(MotionEvent arg) {
this.listener.onDoubleTap();;
return true;
}

@Override
public boolean onDoubleTapEvent(MotionEvent arg) {
return true;
}

@Override
public boolean onSingleTapConfirmed(MotionEvent arg) {

if(this.mode == MODE_DYNAMIC){        // we owe an ACTION_UP, so we fake an
arg.setAction(ACTION_FAKE);      //action which will be converted to an ACTION_UP later.
this.context.dispatchTouchEvent(arg);
}  

return false;
}


static interface SimpleGestureListener{
void onSwipe(int direction);
void onDoubleTap();
}




Please help me why swipe is not working in S4.