I have swiping working to some extent but I have a series of textviews and
spinners that are on the screen and it seems like if I don't swipe straight
across one of them and go just a little across two of them it doesn't pick
it up that well. In general I don't think that it is picking up the swipe as
good as what happens on the iPhone and I was wondering if anyone could
critique my code and help me optimize it.
I'm initializing the GesureDectector and GestureListener. Here is the
GestureListener class:
public class GestureListener : Java.Lang.Object,
GestureDetector.IOnGestureListener
{
private static int SWIPE_MAX_OFF_PATH = 250;
private static int SWIPE_MIN_DISTANCE = 50;
private static int SWIPE_THRESHOLD_VELOCITY = 200;
private View view;
private Activity act;
public GestureListener(View _view, Activity _act)
{
view = _view;
act = _act;
}
public bool OnDown( MotionEvent e )
{
return true;
}
public bool OnFling( MotionEvent e1, MotionEvent e2, float
velocityX,
float velocityY )
{
if ( Math.Abs( e1.GetY() - e2.GetY() ) > SWIPE_MAX_OFF_PATH
){
return false;
}
if ( e1.GetX() - e2.GetX() > SWIPE_MIN_DISTANCE
&& Math.Abs( velocityX )
> SWIPE_THRESHOLD_VELOCITY ){
HandleLeft();
}else if ( e2.GetX() - e1.GetX() >
SWIPE_MIN_DISTANCE && Math.Abs(
velocityX ) > SWIPE_THRESHOLD_VELOCITY ){
HandleRight();
}
return false;
}
public void OnLongPress( MotionEvent e )
{
}
public bool OnScroll( MotionEvent e1, MotionEvent e2, float
distanceX,
float distanceY )
{
return true;
}
public void OnShowPress( MotionEvent e )
{
}
public bool OnSingleTapUp( MotionEvent e )
{
return true;
}
private void HandleLeft(){
Male currActivity = (Male)act;
currActivity.GetStrings("Female");
}
private void HandleRight(){
Male currActivity = (Male)act;
currActivity.GetStrings("Results");
}
}
I am using this for my OnTouch Event:
public bool OnTouch(View v, MotionEvent e){
bool handled = false;
if(flingDetector != null){
handled = flingDetector.OnTouchEvent(e);
}
if(v.GetType() == typeof(Spinner)){
return !handled;
}else{
return handled;
}
}
Any help would be greatly appreciated.
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