Android Launcher 去除上拉进入全部应用

Posted 2022-02-09 王睿丶

packages/apps/Launcher3/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java

@Override
    public final boolean onControllerInterceptTouchEvent(MotionEvent ev) 
        if (ev.getAction() == MotionEvent.ACTION_DOWN) 
            mNoIntercept = !canInterceptTouch(ev);
            if (mNoIntercept) 
                return false;
            

            // Now figure out which direction scroll events the controller will start
            // calling the callbacks.
            final int directionsToDetectScroll;
            boolean ignoreSlopWhenSettling = false;

            if (mCurrentAnimation != null) 
                directionsToDetectScroll = SingleAxisSwipeDetector.DIRECTION_BOTH;
                ignoreSlopWhenSettling = true;
             else 
                directionsToDetectScroll = getSwipeDirection();
                if (directionsToDetectScroll == 0) 
                    mNoIntercept = true;
                    return false;
                
            
            mDetector.setDetectableScrollConditions(
                    directionsToDetectScroll, ignoreSlopWhenSettling);
        


++        if (LauncherAppState.isDisableAllApps()) 
++            return false;
++        


        if (mNoIntercept) 
            return false;
        

        onControllerTouchEvent(ev);
        return mDetector.isDraggingOrSettling();