2014/10/16 上午 08:16:28

android Programming Glossary: invalid_pointer_id

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

private float mLastTouchY private static final int INVALID_POINTER_ID 1 private static final String LOG_TAG TouchImageView The 𤑛ctive.. currently moving our object. private int mActivePointerId INVALID_POINTER_ID public TouchImageViewSample Context context this context null.. y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID..

Zoom and Panning ImageView Android

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

MyImageView extends ImageView private static final int INVALID_POINTER_ID 1 private float mPosX private float mPosY private float mLastTouchX.. private float mLastGestureY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor.. gy break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID..

Image in Canvas with touch events

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

class MyImageView extends View private static final int INVALID_POINTER_ID 1 private Drawable mImage private float mPosX private float.. private float mLastTouchY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor.. y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID..

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

y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID.. break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP final int pointerIndex..

Android Image View Pinch Zooming

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

float mPosX 0f private float mPosY 0f private float mLastTouchX private float mLastTouchY private static final int INVALID_POINTER_ID 1 private static final String LOG_TAG TouchImageView The 𤑛ctive pointer is the one currently moving our object. private.. String LOG_TAG TouchImageView The 𤑛ctive pointer is the one currently moving our object. private int mActivePointerId INVALID_POINTER_ID public TouchImageViewSample Context context this context null 0 public TouchImageViewSample Context context AttributeSet.. mPosX dx mPosY dy invalidate mLastTouchX x mLastTouchY y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP final..

Zoom and Panning ImageView Android

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

import android.widget.ImageView public class MyImageView extends ImageView private static final int INVALID_POINTER_ID 1 private float mPosX private float mPosY private float mLastTouchX private float mLastTouchY private float mLastGestureX.. private float mLastTouchY private float mLastGestureX private float mLastGestureY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context AttributeSet.. gdx mPosY gdy invalidate mLastGestureX gx mLastGestureY gy break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP ..

Image in Canvas with touch events

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

import android.view.View public class MyImageView extends View private static final int INVALID_POINTER_ID 1 private Drawable mImage private float mPosX private float mPosY private float mLastTouchX private float mLastTouchY private.. float mPosX private float mPosY private float mLastTouchX private float mLastTouchY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context this context.. mPosX dx mPosY dy invalidate mLastTouchX x mLastTouchY y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP final..

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

mPosX dx mPosY dy invalidate mLastTouchX x mLastTouchY y break case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP final.. case MotionEvent.ACTION_UP mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_CANCEL mActivePointerId INVALID_POINTER_ID break case MotionEvent.ACTION_POINTER_UP final int pointerIndex ev.getAction MotionEvent.ACTION_POINTER_INDEX_MASK MotionEvent.ACTION_POINTER_INDEX_SHIFT..