/**
* Closes the drawer with an animation.
*
* @see #close()
* @see #open()
* @see #animateOpen()
* @see #animateToggle()
* @see #toggle()
*/
public void animateClose() {
prepareContent();
final OnDrawerScrollListener scrollListener = mOnDrawerScrollListener;
if (scrollListener != null) {
scrollListener.onScrollStarted();
}
animateClose(mVertical ? mHandle.getTop() : mHandle.getLeft());
if (scrollListener != null) {
scrollListener.onScrollEnded();
}
}
/**
* Opens the drawer with an animation.
*
* @see #close()
* @see #open()
* @see #animateClose()
* @see #animateToggle()
* @see #toggle()
*/
public void animateOpen() {
prepareContent();
final OnDrawerScrollListener scrollListener = mOnDrawerScrollListener;
if (scrollListener != null) {
scrollListener.onScrollStarted();
}
animateOpen(mVertical ? mHandle.getTop() : mHandle.getLeft());
sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
if (scrollListener != null) {
scrollListener.onScrollEnded();
}
}
private void stopTracking() {
mHandle.setPressed(false);
mTracking = false;
if (mOnDrawerScrollListener != null) {
mOnDrawerScrollListener.onScrollEnded();
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (mLocked) {
return false;
}
final int action = event.getAction();
float x = event.getX();
float y = event.getY();
final Rect frame = mFrame;
final View handle = mHandle;
handle.getHitRect(frame);
if (!mTracking && !frame.contains((int) x, (int) y)) {
return false;
}
if (action == MotionEvent.ACTION_DOWN) {
mTracking = true;
handle.setPressed(true);
// Must be called before prepareTracking()
prepareContent();
// Must be called after prepareContent()
if (mOnDrawerScrollListener != null) {
mOnDrawerScrollListener.onScrollStarted();
}
if (mVertical) {
final int top = mHandle.getTop();
mTouchDelta = (int) y - top;
prepareTracking(top);
} else {
final int left = mHandle.getLeft();
mTouchDelta = (int) x - left;
prepareTracking(left);
}
mVelocityTracker.addMovement(event);
}
return true;
}
