2014/10/16 上午 08:12:40

android Programming Glossary: downy

Android list view Right / Left swipes like call logs

http://stackoverflow.com/questions/16017988/android-list-view-right-left-swipes-like-call-logs

minimum distance for vertical swipe private float downX downY upX upY Coordinates private Action mSwipeDetected Action.None.. case MotionEvent.ACTION_DOWN downX event.getX downY event.getY mSwipeDetected Action.None return false allow other.. upY event.getY float deltaX downX upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX HORIZONTAL_MIN_DISTANCE..

Android: Scrolling an Imageview

http://stackoverflow.com/questions/3058164/android-scrolling-an-imageview

new View.OnTouchListener float downX downY int totalX totalY int scrollByX scrollByY public boolean onTouch.. case MotionEvent.ACTION_DOWN downX event.getX downY event.getY break case MotionEvent.ACTION_MOVE currentX event.getX.. event.getY scrollByX int downX currentX scrollByY int downY currentY scrolling to left side of image pic moving to the..

Android Swipe on List

http://stackoverflow.com/questions/4373485/android-swipe-on-list

static final int MIN_DISTANCE 100 private float downX downY upX upY private Action mSwipeDetected Action.None public boolean.. case MotionEvent.ACTION_DOWN downX event.getX downY event.getY mSwipeDetected Action.None return false allow other.. upY event.getY float deltaX downX upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX MIN_DISTANCE..

Samsung Galaxy S2 2.3.5+ not calling overScrollBy()

http://stackoverflow.com/questions/9261911/samsung-galaxy-s2-2-3-5-not-calling-overscrollby

float OVERSCROLL_THRESHOLD_IN_PIXELS 70 private float downY @Override public boolean onTouch View v MotionEvent event int.. switch event.getAction case MotionEvent.ACTION_DOWN downY event.getY break case MotionEvent.ACTION_MOVE float deltaY.. case MotionEvent.ACTION_MOVE float deltaY event.getY downY if onTop deltaY OVERSCROLL_THRESHOLD_IN_PIXELS Top overscroll..

Android list view Right / Left swipes like call logs

http://stackoverflow.com/questions/16017988/android-list-view-right-left-swipes-like-call-logs

swipe private static final int VERTICAL_MIN_DISTANCE 80 The minimum distance for vertical swipe private float downX downY upX upY Coordinates private Action mSwipeDetected Action.None Last action public boolean swipeDetected return mSwipeDetected.. boolean onTouch View v MotionEvent event switch event.getAction case MotionEvent.ACTION_DOWN downX event.getX downY event.getY mSwipeDetected Action.None return false allow other events like Click to be processed case MotionEvent.ACTION_MOVE.. to be processed case MotionEvent.ACTION_MOVE upX event.getX upY event.getY float deltaX downX upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX HORIZONTAL_MIN_DISTANCE left or right if deltaX 0 mSwipeDetected..

Android: Scrolling an Imageview

http://stackoverflow.com/questions/3058164/android-scrolling-an-imageview

int maxBottom maxY set touchlistener ImageView_BitmapView.setOnTouchListener new View.OnTouchListener float downX downY int totalX totalY int scrollByX scrollByY public boolean onTouch View view MotionEvent event float currentX currentY switch.. MotionEvent event float currentX currentY switch event.getAction case MotionEvent.ACTION_DOWN downX event.getX downY event.getY break case MotionEvent.ACTION_MOVE currentX event.getX currentY event.getY scrollByX int downX currentX.. case MotionEvent.ACTION_MOVE currentX event.getX currentY event.getY scrollByX int downX currentX scrollByY int downY currentY scrolling to left side of image pic moving to the right if currentX downX if totalX maxLeft scrollByX 0..

Android Swipe on List

http://stackoverflow.com/questions/4373485/android-swipe-on-list

private static final String logTag SwipeDetector private static final int MIN_DISTANCE 100 private float downX downY upX upY private Action mSwipeDetected Action.None public boolean swipeDetected return mSwipeDetected Action.None public.. public boolean onTouch View v MotionEvent event switch event.getAction case MotionEvent.ACTION_DOWN downX event.getX downY event.getY mSwipeDetected Action.None return false allow other events like Click to be processed case MotionEvent.ACTION_UP.. Click to be processed case MotionEvent.ACTION_UP upX event.getX upY event.getY float deltaX downX upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX MIN_DISTANCE left or right if deltaX 0 Log.i logTag Swipe Left to..

Samsung Galaxy S2 2.3.5+ not calling overScrollBy()

http://stackoverflow.com/questions/9261911/samsung-galaxy-s2-2-3-5-not-calling-overscrollby

new OnTouchListener private static final float OVERSCROLL_THRESHOLD_IN_PIXELS 70 private float downY @Override public boolean onTouch View v MotionEvent event int firstVisibleItem listView.getFirstVisiblePosition int totalItemCount.. 1 .getBottom listView.getHeight if onTop onBottom switch event.getAction case MotionEvent.ACTION_DOWN downY event.getY break case MotionEvent.ACTION_MOVE float deltaY event.getY downY if onTop deltaY OVERSCROLL_THRESHOLD_IN_PIXELS.. case MotionEvent.ACTION_DOWN downY event.getY break case MotionEvent.ACTION_MOVE float deltaY event.getY downY if onTop deltaY OVERSCROLL_THRESHOLD_IN_PIXELS Top overscroll if onBottom deltaY OVERSCROLL_THRESHOLD_IN_PIXELS Bottom..