2014/10/16 上午 08:13:11

android Programming Glossary: ev.getpointerid

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_MOVE final int pointerIndex.. MotionEvent.ACTION_POINTER_INDEX_SHIFT final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId This was our active.. mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break return true non Javadoc @see android.view.View#draw..

Zoom and Panning ImageView Android

http://stackoverflow.com/questions/12169905/zoom-and-panning-imageview-android

y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_POINTER_1_DOWN if mScaleDetector.isInProgress.. final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId Log.d DEBUG mActivePointerId.. mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break return true @Override public void..

Image in Canvas with touch events

http://stackoverflow.com/questions/5743328/image-in-canvas-with-touch-events

can we use scale gesture detector for pinch zoom in android

http://stackoverflow.com/questions/5790503/can-we-use-scale-gesture-detector-for-pinch-zoom-in-android

Pinch Zoom in android for an imageview?

http://stackoverflow.com/questions/6758847/pinch-zoom-in-android-for-an-imageview

Get Canvas coordinates after scaling up/down or dragging in android

http://stackoverflow.com/questions/7524843/get-canvas-coordinates-after-scaling-up-down-or-dragging-in-android

Android Image View Pinch Zooming

http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming

case MotionEvent.ACTION_DOWN final float x ev.getX final float y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_MOVE final int pointerIndex ev.findPointerIndex mActivePointerId final float x ev.getX pointerIndex.. ev.getAction MotionEvent.ACTION_POINTER_INDEX_MASK MotionEvent.ACTION_POINTER_INDEX_SHIFT final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId This was our active pointer going up. Choose a new active pointer and adjust.. pointerIndex 0 1 0 mLastTouchX ev.getX newPointerIndex mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break return true non Javadoc @see android.view.View#draw android.graphics.Canvas @Override public void..

Zoom and Panning ImageView Android

http://stackoverflow.com/questions/12169905/zoom-and-panning-imageview-android

final float x ev.getX final float y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_POINTER_1_DOWN if mScaleDetector.isInProgress final float gx mScaleDetector.getFocusX.. ev.getAction MotionEvent.ACTION_POINTER_INDEX_MASK MotionEvent.ACTION_POINTER_INDEX_SHIFT final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId Log.d DEBUG mActivePointerId This was our active pointer going up. Choose.. pointerIndex 0 1 0 mLastTouchX ev.getX newPointerIndex mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break return true @Override public void onDraw Canvas canvas canvas.save canvas.translate mPosX mPosY..

Image in Canvas with touch events

http://stackoverflow.com/questions/5743328/image-in-canvas-with-touch-events

MotionEvent.ACTION_DOWN final float x ev.getX final float y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_MOVE final int pointerIndex ev.findPointerIndex mActivePointerId final float x ev.getX.. ev.getAction MotionEvent.ACTION_POINTER_INDEX_MASK MotionEvent.ACTION_POINTER_INDEX_SHIFT final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId This was our active pointer going up. Choose a new active pointer and adjust.. pointerIndex 0 1 0 mLastTouchX ev.getX newPointerIndex mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break return true @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save Log.d DEBUG..

can we use scale gesture detector for pinch zoom in android

http://stackoverflow.com/questions/5790503/can-we-use-scale-gesture-detector-for-pinch-zoom-in-android

Pinch Zoom in android for an imageview?

http://stackoverflow.com/questions/6758847/pinch-zoom-in-android-for-an-imageview

Get Canvas coordinates after scaling up/down or dragging in android

http://stackoverflow.com/questions/7524843/get-canvas-coordinates-after-scaling-up-down-or-dragging-in-android

case MotionEvent.ACTION_DOWN final float x ev.getX final float y ev.getY mLastTouchX x mLastTouchY y mActivePointerId ev.getPointerId 0 break case MotionEvent.ACTION_MOVE final int pointerIndex ev.findPointerIndex mActivePointerId final float x ev.getX pointerIndex.. ev.getAction MotionEvent.ACTION_POINTER_INDEX_MASK MotionEvent.ACTION_POINTER_INDEX_SHIFT final int pointerId ev.getPointerId pointerIndex if pointerId mActivePointerId This was our active pointer going up. Choose a new active pointer and adjust.. pointerIndex 0 1 0 mLastTouchX ev.getX newPointerIndex mLastTouchY ev.getY newPointerIndex mActivePointerId ev.getPointerId newPointerIndex break float objectNewX objectNewY if mScaleFactor 1 objectNewX ev.getX ev.getX super.getWidth 0.5f mScaleFactor..