2014/10/16 上午 08:19:44

android Programming Glossary: mscaledetector

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

attrs this context attrs 0 private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f Existing code ... public TouchImageViewSample.. context attrs defStyle Create our ScaleGestureDetector mScaleDetector new ScaleGestureDetector context new ScaleListener borderPaint.. ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action..

Zoom and Panning ImageView Android

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

INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context.. Context context AttributeSet attrs this context attrs 0 mScaleDetector new ScaleGestureDetector getContext new ScaleListener public.. attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override..

Android Pinch and Zoom Image in Activity

http://stackoverflow.com/questions/13210443/android-pinch-and-zoom-image-in-activity

origWidth origHeight bmWidth bmHeight ScaleGestureDetector mScaleDetector Context context public TouchImageView Context context super.. context super.setClickable true this.context context mScaleDetector new ScaleGestureDetector context new ScaleListener matrix.setTranslate.. public boolean onTouch View v MotionEvent event mScaleDetector.onTouchEvent event matrix.getValues m float x m Matrix.MTRANS_X..

Pinch zoom for custom view

http://stackoverflow.com/questions/5216658/pinch-zoom-for-custom-view

few lines of code you'll need private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyCustomView Context mContext.. MyCustomView Context mContext ... Your view code ... mScaleDetector new ScaleGestureDetector context new ScaleListener @Override.. ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev return true @Override public void onDraw Canvas..

Image in Canvas with touch events

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

INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context.. attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override.. ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action..

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

How do I modify TouchImageView with double tap to zoom in and out?

http://stackoverflow.com/questions/7704086/how-do-i-modify-touchimageview-with-double-tap-to-zoom-in-and-out

origWidth origHeight bmWidth bmHeight ScaleGestureDetector mScaleDetector private GestureDetector gestureDetector Context context public.. super.setClickable true this.context context mScaleDetector new ScaleGestureDetector context new ScaleListener matrix.setTranslate.. event if gestureDetector.onTouchEvent event return true mScaleDetector.onTouchEvent event matrix.getValues m float x m Matrix.MTRANS_X..

Android Image View Pinch Zooming

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

0 public TouchImageViewSample Context context AttributeSet attrs this context attrs 0 private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f Existing code ... public TouchImageViewSample Context context AttributeSet attrs int defStyle.. Context context AttributeSet attrs int defStyle super context attrs defStyle Create our ScaleGestureDetector mScaleDetector new ScaleGestureDetector context new ScaleListener borderPaint new Paint borderPaint.setARGB 255 255 128 0 borderPaint.setStyle.. Paint.Style.FILL @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action MotionEvent.ACTION_MASK case MotionEvent.ACTION_DOWN final float..

Zoom and Panning ImageView Android

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

mLastGestureX private float mLastGestureY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context AttributeSet attrs this context attrs 0 mScaleDetector.. private float mScaleFactor 1.f public MyImageView Context context AttributeSet attrs this context attrs 0 mScaleDetector new ScaleGestureDetector getContext new ScaleListener public MyImageView Context context AttributeSet attrs int defStyle.. new ScaleListener public MyImageView Context context AttributeSet attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector..

Android Pinch and Zoom Image in Activity

http://stackoverflow.com/questions/13210443/android-pinch-and-zoom-image-in-activity

final int CLICK 3 float saveScale 1f float right bottom origWidth origHeight bmWidth bmHeight ScaleGestureDetector mScaleDetector Context context public TouchImageView Context context super context sharedConstructing context public TouchImageView Context.. context private void sharedConstructing Context context super.setClickable true this.context context mScaleDetector new ScaleGestureDetector context new ScaleListener matrix.setTranslate 1f 1f m new float 9 setImageMatrix matrix setScaleType.. ScaleType.MATRIX setOnTouchListener new OnTouchListener @Override public boolean onTouch View v MotionEvent event mScaleDetector.onTouchEvent event matrix.getValues m float x m Matrix.MTRANS_X float y m Matrix.MTRANS_Y PointF curr new PointF event.getX..

Pinch zoom for custom view

http://stackoverflow.com/questions/5216658/pinch-zoom-for-custom-view

If you just want to implement pinch to zoom there's only a few lines of code you'll need private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyCustomView Context mContext ... Your view code ... mScaleDetector new ScaleGestureDetector.. mScaleDetector private float mScaleFactor 1.f public MyCustomView Context mContext ... Your view code ... mScaleDetector new ScaleGestureDetector context new ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector.. ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev return true @Override public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleFactor..

Image in Canvas with touch events

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

mLastTouchX private float mLastTouchY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context this context null 0 mImage getResources .getDrawable R.drawable.imagename.. this context attrs 0 public MyImageView Context context AttributeSet attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector.. ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action MotionEvent.ACTION_MASK case MotionEvent.ACTION_DOWN 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

mLastTouchX private float mLastTouchY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context this context null 0 mImage act.getResources .getDrawable.. this context attrs 0 public MyImageView Context context AttributeSet attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector.. ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action MotionEvent.ACTION_MASK case MotionEvent.ACTION_DOWN final..

Pinch Zoom in android for an imageview?

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

mLastTouchX private float mLastTouchY private int mActivePointerId INVALID_POINTER_ID private ScaleGestureDetector mScaleDetector private float mScaleFactor 1.f public MyImageView Context context this context null 0 mImage act.getResources .getDrawable.. this context attrs 0 public MyImageView Context context AttributeSet attrs int defStyle super context attrs defStyle mScaleDetector new ScaleGestureDetector context new ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector.. ScaleListener @Override public boolean onTouchEvent MotionEvent ev Let the ScaleGestureDetector inspect all events. mScaleDetector.onTouchEvent ev final int action ev.getAction switch action MotionEvent.ACTION_MASK case MotionEvent.ACTION_DOWN final..

How do I modify TouchImageView with double tap to zoom in and out?

http://stackoverflow.com/questions/7704086/how-do-i-modify-touchimageview-with-double-tap-to-zoom-in-and-out

final int CLICK 3 float saveScale 1f float right bottom origWidth origHeight bmWidth bmHeight ScaleGestureDetector mScaleDetector private GestureDetector gestureDetector Context context public TouchImageView Context context AttributeSet attrs super context.. context gestureDetector new GestureDetector new DoubleTapGestureListener super.setClickable true this.context context mScaleDetector new ScaleGestureDetector context new ScaleListener matrix.setTranslate 1f 1f m new float 9 setImageMatrix matrix setScaleType.. @Override public boolean onTouch View v MotionEvent event if gestureDetector.onTouchEvent event return true mScaleDetector.onTouchEvent event matrix.getValues m float x m Matrix.MTRANS_X float y m Matrix.MTRANS_Y PointF curr new PointF event.getX..