Android图片拉伸和缩放

??? private void initialize() {??
??????? DisplayMetrics dm = getResources().getDisplayMetrics();??
??????? mScreenWidth = dm.widthPixels;//屏幕宽??
??????? mScreenHeight = dm.heightPixels;//屏幕高??
??????? //mScreenWidth =100;
??????? //mScreenHeight =100;//缩放
??????? //mScreenWidth =500;
??????? //mScreenHeight =500;//放大
??????? Bitmap bmp = ((BitmapDrawable)getResources().getDrawable(R.drawable.show)).getBitmap();//源图片?
??????? Bitmap mBitmap = Bitmap.createScaledBitmap(bmp, mScreenWidth, mScreenHeight, true); //按指定大小转换
??? }

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