private boolean startDragging(MotionEvent ev, boolean ignoreTrackIfInScrollContainer) {
final Rect bounds = mTempRect;
mThumb.copyBounds(bounds);
// Grow the current thumb rect for a bigger touch area
bounds.inset(-mAddedTouchBounds, -mAddedTouchBounds);
mIsDragging = (bounds.contains((int) ev.getX(), (int) ev.getY()));
if (!mIsDragging && mAllowTrackClick && !ignoreTrackIfInScrollContainer) {
// If the user clicked outside the thumb, we compute the current position
// and force an immediate drag to it.
mIsDragging = true;
mDragOffset = (bounds.width() / 2) - mAddedTouchBounds;
updateDragging(ev);
// As the thumb may have moved, get the bounds again
mThumb.copyBounds(bounds);
bounds.inset(-mAddedTouchBounds, -mAddedTouchBounds);
}
if (mIsDragging) {
setPressed(true);
attemptClaimDrag();
setHotspot(ev.getX(), ev.getY());
mDragOffset = (int) (ev.getX() - bounds.left - mAddedTouchBounds);
if (mPublicChangeListener != null) {
mPublicChangeListener.onStartTrackingTouch(this);
}
}
return mIsDragging;
}
private void stopDragging() {
if (mPublicChangeListener != null) {
mPublicChangeListener.onStopTrackingTouch(this);
}
mIsDragging = false;
setPressed(false);
}
private void notifyProgressChange(float smoothProgress, float targetProgress) {
if (null != mOnProgressChangeListener) {
mOnProgressChangeListener.onProgressChange(smoothProgress, targetProgress);
}
}
private void notifyProgress(int value, boolean fromUser) {
if (mPublicChangeListener != null) {
mPublicChangeListener.onProgressChanged(DiscreteSeekBar.this, value, fromUser);
}
onValueChanged(value);
}
