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2014/10/16 ¤W¤È 08:18:38
android Programming Glossary: math.absAndroid - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling try right to left if e1.getX e2.getX SWIPE_MIN_DISTANCE Math.abs velocityX SWIPE_THRESHOLD_VELOCITY activeFeature activeFeature.. left to right else if e2.getX e1.getX SWIPE_MIN_DISTANCE Math.abs velocityX SWIPE_THRESHOLD_VELOCITY activeFeature activeFeature.. e1 MotionEvent e2 float distanceX float distanceY if Math.abs distanceY Math.abs distanceX return true return false share..
Android: How to handle right to left swipe gestures http://stackoverflow.com/questions/4139288/android-how-to-handle-right-to-left-swipe-gestures diffY e2.getY e1.getY float diffX e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs.. e1.getY float diffX e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs velocityX.. e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs velocityX SWIPE_VELOCITY_THRESHOLD..
http://stackoverflow.com/questions/4373485/android-swipe-on-list upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX MIN_DISTANCE left or right if deltaX 0 Log.i logTag.. to Left mSwipeDetected Action.RL return false else if Math.abs deltaY MIN_DISTANCE vertical swipe detection top or down.. upX float deltaY downY upY horizontal swipe detection if Math.abs deltaX HORIZONTAL_MIN_DISTANCE left or right if deltaX 0 ..
How to set Android camera orientation properly? http://stackoverflow.com/questions/4645960/how-to-set-android-camera-orientation-properly h double ratio double size.width size.height if Math.abs ratio targetRatio ASPECT_TOLERANCE continue if Math.abs size.height.. Math.abs ratio targetRatio ASPECT_TOLERANCE continue if Math.abs size.height targetHeight minDiff optimalSize size minDiff.. targetHeight minDiff optimalSize size minDiff Math.abs size.height targetHeight Cannot find the one match the aspect..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection if it's too short as it may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX.. may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else.. a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return..
Android - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling MotionEvent e1 MotionEvent e2 float velocityX float velocityY try right to left if e1.getX e2.getX SWIPE_MIN_DISTANCE Math.abs velocityX SWIPE_THRESHOLD_VELOCITY activeFeature activeFeature items.size 1 activeFeature 1 items.size 1 smoothScrollTo.. activeFeature getMeasuredWidth 0 return true left to right else if e2.getX e1.getX SWIPE_MIN_DISTANCE Math.abs velocityX SWIPE_THRESHOLD_VELOCITY activeFeature activeFeature 0 activeFeature 1 0 smoothScrollTo activeFeature getMeasuredWidth..
Android: How to handle right to left swipe gestures http://stackoverflow.com/questions/4139288/android-how-to-handle-right-to-left-swipe-gestures velocityX float velocityY boolean result false try float diffY e2.getY e1.getY float diffX e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs velocityX SWIPE_VELOCITY_THRESHOLD if diffX 0 onSwipeRight.. float velocityY boolean result false try float diffY e2.getY e1.getY float diffX e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs velocityX SWIPE_VELOCITY_THRESHOLD if diffX 0 onSwipeRight else onSwipeLeft.. result false try float diffY e2.getY e1.getY float diffX e2.getX e1.getX if Math.abs diffX Math.abs diffY if Math.abs diffX SWIPE_THRESHOLD Math.abs velocityX SWIPE_VELOCITY_THRESHOLD if diffX 0 onSwipeRight else onSwipeLeft else..
http://stackoverflow.com/questions/4373485/android-swipe-on-list 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 Right mSwipeDetected Action.LR return false.. return false if deltaX 0 Log.i logTag Swipe Right to Left mSwipeDetected Action.RL return false else if Math.abs deltaY MIN_DISTANCE vertical swipe detection top or down if deltaY 0 Log.i logTag Swipe Top to Bottom mSwipeDetected.. 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 Log.i logTag Swipe Left to Right mSwipeDetected Action.LR ..
How to set Android camera orientation properly? http://stackoverflow.com/questions/4645960/how-to-set-android-camera-orientation-properly Size size sizes Log.d TAG Checking size size.width w size.height h double ratio double size.width size.height if Math.abs ratio targetRatio ASPECT_TOLERANCE continue if Math.abs size.height targetHeight minDiff optimalSize size minDiff Math.abs.. size.height h double ratio double size.width size.height if Math.abs ratio targetRatio ASPECT_TOLERANCE continue if Math.abs size.height targetHeight minDiff optimalSize size minDiff Math.abs size.height targetHeight Cannot find the one match.. ratio targetRatio ASPECT_TOLERANCE continue if Math.abs size.height targetHeight minDiff optimalSize size minDiff Math.abs size.height targetHeight Cannot find the one match the aspect ratio ignore the requirement if optimalSize null minDiff..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection int dx int e2.getX e1.getX don't accept the fling if it's too short as it may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return true else return false.. e1.getX don't accept the fling if it's too short as it may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return true else return false Is it possible to.. accept the fling if it's too short as it may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return true else return false Is it possible to lay a transparent..
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