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2014/10/16 ¤W¤È 08:19:44
android Programming Glossary: mscalevector.zCanvas Pinch-Zoom to Point Within Bounds http://stackoverflow.com/questions/11339190/canvas-pinch-zoom-to-point-within-bounds Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleVector.z mScaleVector.z This is the scale factor as seen below canvas.translate.. canvas canvas.save canvas.scale mScaleVector.z mScaleVector.z This is the scale factor as seen below canvas.translate mScaleVector.x.. detector.getScaleFactor if Math.abs factor 1.0f 0.0075f mScaleVector.z factor mScaleVector.z Math.max MIN_ZOOM Math.min mScaleVector.z..
Canvas Pinch-Zoom to Point Within Bounds http://stackoverflow.com/questions/11339190/canvas-pinch-zoom-to-point-within-bounds object in MySurface via the following public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleVector.z mScaleVector.z This is the scale factor as seen below canvas.translate mScaleVector.x mScaleVector.y These are offset values.. via the following public void onDraw Canvas canvas super.onDraw canvas canvas.save canvas.scale mScaleVector.z mScaleVector.z This is the scale factor as seen below canvas.translate mScaleVector.x mScaleVector.y These are offset values from 0 0 both.. boolean onScale ScaleGestureDetector detector float factor detector.getScaleFactor if Math.abs factor 1.0f 0.0075f mScaleVector.z factor mScaleVector.z Math.max MIN_ZOOM Math.min mScaleVector.z MAX_ZOOM ... invalidate return true public boolean onTouchEvent..
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