@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return parentActionBarLayout.checkTransitionAnimation() || onTouchEvent(ev);
}
public boolean onTouchEvent(MotionEvent ev) {
if (!parentActionBarLayout.checkTransitionAnimation()) {
if (drawerOpened && ev != null && ev.getX() > drawerPosition && !startedTracking) {
if (ev.getAction() == MotionEvent.ACTION_UP) {
closeDrawer(false);
}
return true;
}
if (allowOpenDrawer && parentActionBarLayout.fragmentsStack.size() == 1) {
if (ev != null
&& (ev.getAction() == MotionEvent.ACTION_DOWN
|| ev.getAction() == MotionEvent.ACTION_MOVE)
&& !startedTracking
&& !maybeStartTracking) {
startedTrackingPointerId = ev.getPointerId(0);
maybeStartTracking = true;
startedTrackingX = (int) ev.getX();
startedTrackingY = (int) ev.getY();
cancelCurrentAnimation();
if (velocityTracker != null) {
velocityTracker.clear();
}
} else if (ev != null
&& ev.getAction() == MotionEvent.ACTION_MOVE
&& ev.getPointerId(0) == startedTrackingPointerId) {
if (velocityTracker == null) {
velocityTracker = VelocityTracker.obtain();
}
float dx = (int) (ev.getX() - startedTrackingX);
float dy = Math.abs((int) ev.getY() - startedTrackingY);
velocityTracker.addMovement(ev);
if (maybeStartTracking
&& !startedTracking
&& (dx > 0
&& dx / 3.0f > Math.abs(dy)
&& Math.abs(dx) >= AndroidUtilities.getPixelsInCM(0.2f, true)
|| dx < 0
&& Math.abs(dx) >= Math.abs(dy)
&& Math.abs(dx) >= AndroidUtilities.getPixelsInCM(0.4f, true))) {
prepareForDrawerOpen(ev);
startedTrackingX = (int) ev.getX();
requestDisallowInterceptTouchEvent(true);
} else if (startedTracking) {
if (!beginTrackingSent) {
if (((Activity) getContext()).getCurrentFocus() != null) {
AndroidUtilities.hideKeyboard(((Activity) getContext()).getCurrentFocus());
}
beginTrackingSent = true;
}
moveDrawerByX(dx);
startedTrackingX = (int) ev.getX();
}
} else if (ev == null
|| ev != null
&& ev.getPointerId(0) == startedTrackingPointerId
&& (ev.getAction() == MotionEvent.ACTION_CANCEL
|| ev.getAction() == MotionEvent.ACTION_UP
|| ev.getAction() == MotionEvent.ACTION_POINTER_UP)) {
if (velocityTracker == null) {
velocityTracker = VelocityTracker.obtain();
}
velocityTracker.computeCurrentVelocity(1000);
/*if (!startedTracking) {
float velX = velocityTracker.getXVelocity();
float velY = velocityTracker.getYVelocity();
if (Math.abs(velX) >= 3500 && Math.abs(velX) > Math.abs(velY)) {
prepareForDrawerOpen(ev);
if (!beginTrackingSent) {
if (((Activity)getContext()).getCurrentFocus() != null) {
AndroidUtilities.hideKeyboard(((Activity)getContext()).getCurrentFocus());
}
beginTrackingSent = true;
}
}
}*/
if (startedTracking
|| drawerPosition != 0 && drawerPosition != drawerLayout.getMeasuredWidth()) {
float velX = velocityTracker.getXVelocity();
float velY = velocityTracker.getYVelocity();
boolean backAnimation =
drawerPosition < drawerLayout.getMeasuredWidth() / 2.0f
&& (velX < 3500 || Math.abs(velX) < Math.abs(velY))
|| velX < 0 && Math.abs(velX) >= 3500;
if (!backAnimation) {
openDrawer(!drawerOpened && Math.abs(velX) >= 3500);
} else {
closeDrawer(drawerOpened && Math.abs(velX) >= 3500);
}
startedTracking = false;
} else {
maybeStartTracking = false;
startedTracking = false;
}
if (velocityTracker != null) {
velocityTracker.recycle();
velocityTracker = null;
}
}
}
return startedTracking;
}
return false;
}
