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2014/10/16 ¤W¤È 08:15:19
android Programming Glossary: imagewidthBitmap recycle with largeHeap enabled http://stackoverflow.com/questions/12716574/bitmap-recycle-with-largeheap-enabled R.id.myimage options int imageHeight options.outHeight int imageWidth options.outWidth This will give you the size of the image before.. need to scale the image First way if imageHeight reqHeight imageWidth reqWidth if imageWidth imageHeight inSampleSize Math.round float.. First way if imageHeight reqHeight imageWidth reqWidth if imageWidth imageHeight inSampleSize Math.round float imageHeight float..
Curl page from left to right android http://stackoverflow.com/questions/16772734/curl-page-from-left-to-right-android r new Rect margin margin width margin height margin int imageWidth r.width border 2 int imageHeight imageWidth d.getIntrinsicHeight.. margin int imageWidth r.width border 2 int imageHeight imageWidth d.getIntrinsicHeight d.getIntrinsicWidth if imageHeight r.height.. r.height border 2 imageHeight r.height border 2 imageWidth imageHeight d.getIntrinsicWidth d.getIntrinsicHeight r.left..
Getting coordinates and width/height from a matrix http://stackoverflow.com/questions/5286174/getting-coordinates-and-width-height-from-a-matrix values Matrix.MTRANS_Y width values Matrix.MSCALE_X imageWidth height values Matrix.MSCALE_Y imageHeight share improve this..
Rotate zoom drag image in android imageview http://stackoverflow.com/questions/5894736/rotate-zoom-drag-image-in-android-imageview getHeight Drawable d getDrawable if d null return int imageWidth d.getIntrinsicWidth int imageHeight d.getIntrinsicHeight int.. int imageHeight d.getIntrinsicHeight int scaleWidth int imageWidth value 0 int scaleHeight int imageHeight value 4 don't let the..
Android image view matrix scale + translate http://stackoverflow.com/questions/6075363/android-image-view-matrix-scale-translate to choose this works float scaleX float displayWidth float imageWidth float scaleY float displayHeight float imageHeight float minScale.. float tx Math.max 0 0.5f float displayWidth minScale imageWidth float ty Math.max 0 0.5f float displayHeight minScale imageHeight.. the image should be the scale pivot m.postScale minScale imageWidth 2 imageHeight 2 Translate m.postTranslate tx ty imageView.setImageMatrix..
http://stackoverflow.com/questions/9269891/android-face-detection myView this private class myView extends View private int imageWidth imageHeight private int numberOfFace 5 private FaceDetector.. getResources R.drawable.face5 BitmapFactoryOptionsbfo imageWidth myBitmap.getWidth imageHeight myBitmap.getHeight myFace new.. numberOfFace myFaceDetect new FaceDetector imageWidth imageHeight numberOfFace numberOfFaceDetected myFaceDetect.findFaces..
Bitmap recycle with largeHeap enabled http://stackoverflow.com/questions/12716574/bitmap-recycle-with-largeheap-enabled true BitmapFactory.decodeResource getResources R.id.myimage options int imageHeight options.outHeight int imageWidth options.outWidth This will give you the size of the image before downloading and on the basic of that you can check the.. given in the explanation of docs. Calculating how much we need to scale the image First way if imageHeight reqHeight imageWidth reqWidth if imageWidth imageHeight inSampleSize Math.round float imageHeight float reqHeight else inSampleSize Math.round.. of docs. Calculating how much we need to scale the image First way if imageHeight reqHeight imageWidth reqWidth if imageWidth imageHeight inSampleSize Math.round float imageHeight float reqHeight else inSampleSize Math.round float imageWidth float..
Curl page from left to right android http://stackoverflow.com/questions/16772734/curl-page-from-left-to-right-android getResources y if y null int margin 7 int border 3 Rect r new Rect margin margin width margin height margin int imageWidth r.width border 2 int imageHeight imageWidth d.getIntrinsicHeight d.getIntrinsicWidth if imageHeight r.height border 2.. int border 3 Rect r new Rect margin margin width margin height margin int imageWidth r.width border 2 int imageHeight imageWidth d.getIntrinsicHeight d.getIntrinsicWidth if imageHeight r.height border 2 imageHeight r.height border 2 imageWidth imageHeight.. imageWidth d.getIntrinsicHeight d.getIntrinsicWidth if imageHeight r.height border 2 imageHeight r.height border 2 imageWidth imageHeight d.getIntrinsicWidth d.getIntrinsicHeight r.left r.width imageWidth 2 border r.right r.left imageWidth border..
Getting coordinates and width/height from a matrix http://stackoverflow.com/questions/5286174/getting-coordinates-and-width-height-from-a-matrix
Rotate zoom drag image in android imageview http://stackoverflow.com/questions/5894736/rotate-zoom-drag-image-in-android-imageview savedMatrix2.getValues savedValue int width getWidth int height getHeight Drawable d getDrawable if d null return int imageWidth d.getIntrinsicWidth int imageHeight d.getIntrinsicHeight int scaleWidth int imageWidth value 0 int scaleHeight int imageHeight.. if d null return int imageWidth d.getIntrinsicWidth int imageHeight d.getIntrinsicHeight int scaleWidth int imageWidth value 0 int scaleHeight int imageHeight value 4 don't let the image go outside if value 2 width 1 value 2 width 10 else..
Android image view matrix scale + translate http://stackoverflow.com/questions/6075363/android-image-view-matrix-scale-translate scale is appropriate . Here is the code Compute the scale to choose this works float scaleX float displayWidth float imageWidth float scaleY float displayHeight float imageHeight float minScale Math.min scaleX scaleY tx ty should be the translation.. be the translation to take the image back to the screen center float tx Math.max 0 0.5f float displayWidth minScale imageWidth float ty Math.max 0 0.5f float displayHeight minScale imageHeight Compute the matrix Matrix m new Matrix m.reset Middle.. Compute the matrix Matrix m new Matrix m.reset Middle of the image should be the scale pivot m.postScale minScale imageWidth 2 imageHeight 2 Translate m.postTranslate tx ty imageView.setImageMatrix m The above code works if I don't center the scale..
http://stackoverflow.com/questions/9269891/android-face-detection setContentView R.layout.main setContentView new myView this private class myView extends View private int imageWidth imageHeight private int numberOfFace 5 private FaceDetector myFaceDetect private FaceDetector.Face myFace float myEyesDistance.. Bitmap.Config.RGB_565 myBitmap BitmapFactory.decodeResource getResources R.drawable.face5 BitmapFactoryOptionsbfo imageWidth myBitmap.getWidth imageHeight myBitmap.getHeight myFace new FaceDetector.Face numberOfFace myFaceDetect new FaceDetector.. imageHeight myBitmap.getHeight myFace new FaceDetector.Face numberOfFace myFaceDetect new FaceDetector imageWidth imageHeight numberOfFace numberOfFaceDetected myFaceDetect.findFaces myBitmap myFace @Override protected void onDraw Canvas..
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