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2014/10/16 ¤W¤È 08:25:46
android Programming Glossary: tempcanvas.drawbitmapAndroid Circular Gradient Alpha Mask http://stackoverflow.com/questions/4159959/android-circular-gradient-alpha-mask Bitmap.Config.ARGB_8888 Canvas tempCanvas new Canvas tempBitmap Copy foggyWindowBmp into tempBitmap tempCanvas.drawBitmap foggyWindowBmp 0 0 null Create a radial gradient RadialGradient gradient new android.graphics.RadialGradient circleX circleY..
How can I make image opaque to some level? http://stackoverflow.com/questions/4688306/how-can-i-make-image-opaque-to-some-level new Canvas bmResult switch code case CHANGE_TRANSPARENCY Paint alphaPaint new Paint alphaPaint.setAlpha 128 tempCanvas.drawBitmap bmpOriginal 0 0 alphaPaint break case ROTATE tempCanvas.rotate 90 bmpOriginal.getWidth 2 bmpOriginal.getHeight 2 tempCanvas.drawBitmap.. bmpOriginal 0 0 alphaPaint break case ROTATE tempCanvas.rotate 90 bmpOriginal.getWidth 2 bmpOriginal.getHeight 2 tempCanvas.drawBitmap bmpOriginal 0 0 null break case ZOOM_IN Rect zoomRegion new Rect zoomRegion.left 0 zoomRegion.top 0 zoomRegion.right.. new Rect display.left 0 display.top 0 display.right bmpOriginal.getWidth display.bottom bmpOriginal.getHeight tempCanvas.drawBitmap bmpOriginal zoomRegion display null break default mImageView.setImageBitmap bmResult sets alpha to semi transparent value..
Rotating a drawable in Android http://stackoverflow.com/questions/4763103/rotating-a-drawable-in-android Canvas tempCanvas new Canvas bmResult tempCanvas.rotate 90 bmpOriginal.getWidth 2 bmpOriginal.getHeight 2 tempCanvas.drawBitmap bmpOriginal 0 0 null mImageView.setImageBitmap bmResult In this code sample rotation for 90 degrees over image center occurs...
Android: Drawing a canvas to an ImageView http://stackoverflow.com/questions/4918079/android-drawing-a-canvas-to-an-imageview myBitmap.getHeight Bitmap.Config.RGB_565 Canvas tempCanvas new Canvas tempBitmap Draw the image bitmap into the cavas tempCanvas.drawBitmap myBitmap 0 0 null Draw everything else you want into the canvas in this example a rectangle with rounded edges tempCanvas.drawRoundRect..
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