Drawable newDrawable = getResources().getDrawable(mImageIds[newState])
.mutate();
Drawable oldDrawable = getResources().getDrawable(mImageIds[oldState])
.mutate();
Bitmap bitmap = null;
bitmap = Bitmap.createBitmap(width, bitmapHeight,
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
newDrawable.setBounds(0, 0, newDrawable.getIntrinsicWidth(),
newDrawable.getIntrinsicHeight());
oldDrawable.setBounds(0, oldBitmapOffset,
oldDrawable.getIntrinsicWidth(),
oldDrawable.getIntrinsicHeight() + oldBitmapOffset);
//canvas.rotate(orientation+180, width / 2, width / 2);
//canvas.translate(-oldBitmapOffset, 0);
newDrawable.draw(canvas);
oldDrawable.draw(canvas);
canvas看作画布,Drawable看作图画，bitmap看作能显示这幅画的画框大小
canvas旋转平移后，坐标原点也会随之改变。
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
