/// <summary>MotionEvent has no getRawY(int) method; simulate it pending future API approval.
/// </summary>
/// <remarks>MotionEvent has no getRawY(int) method; simulate it pending future API approval.
/// </remarks>
private static float getRawY(android.view.MotionEvent @event, int pointerIndex)
{
if (pointerIndex < 0)
{
return(float.MinValue);
}
if (pointerIndex == 0)
{
return(@event.getRawY());
}
float offset = @event.getRawY() - @event.getY();
return(@event.getY(pointerIndex) + offset);
}
public virtual bool onTouch(android.view.View v, android.view.MotionEvent @event)
{
int action = @event.getAction();
if (@event.getPointerCount() > 1)
{
// ZoomButtonsController doesn't handle mutitouch. Give up control.
return(false);
}
if (mReleaseTouchListenerOnUp)
{
// The controls were dismissed but we need to throw away all events until the up
if (action == android.view.MotionEvent.ACTION_UP || action == android.view.MotionEvent
.ACTION_CANCEL)
{
mOwnerView.setOnTouchListener(null);
setTouchTargetView(null);
mReleaseTouchListenerOnUp = false;
}
// Eat this event
return(true);
}
dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT);
android.view.View targetView = mTouchTargetView;
switch (action)
{
case android.view.MotionEvent.ACTION_DOWN:
{
targetView = findViewForTouch((int)@event.getRawX(), (int)@event.getRawY());
setTouchTargetView(targetView);
break;
}
case android.view.MotionEvent.ACTION_UP:
case android.view.MotionEvent.ACTION_CANCEL:
{
setTouchTargetView(null);
break;
}
}
if (targetView != null)
{
// The upperleft corner of the target view in raw coordinates
int targetViewRawX = mContainerRawLocation[0] + mTouchTargetWindowLocation[0];
int targetViewRawY = mContainerRawLocation[1] + mTouchTargetWindowLocation[1];
android.view.MotionEvent containerEvent = android.view.MotionEvent.obtain(@event);
// Convert the motion event into the target view's coordinates (from
// owner view's coordinates)
containerEvent.offsetLocation(mOwnerViewRawLocation[0] - targetViewRawX, mOwnerViewRawLocation
[1] - targetViewRawY);
// These are floats because we need to potentially offset away this exact amount
float containerX = containerEvent.getX();
float containerY = containerEvent.getY();
if (containerX < 0 && containerX > -ZOOM_CONTROLS_TOUCH_PADDING)
{
containerEvent.offsetLocation(-containerX, 0);
}
if (containerY < 0 && containerY > -ZOOM_CONTROLS_TOUCH_PADDING)
{
containerEvent.offsetLocation(0, -containerY);
}
bool retValue = targetView.dispatchTouchEvent(containerEvent);
containerEvent.recycle();
return(retValue);
}
else
{
return(false);
}
}