ImageView的图片，压缩成PNG，并得到二进制流数据

来源：互联网发布：ecshop 3.6 数据字典编辑：程序博客网时间：2024/05/16 16:58

byte[] img_data;            //设置图片  ImageView imgExtendImageView1 = new ImageView(mContext);  imgExtendImageView1.setImageResource(R.drawable.test);            //设置尺寸  imgExtendImageView1.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));  imgExtendImageView1.layout(0, 0, imgExtendImageView1.getMeasuredWidth(), imgExtendImageView1.getMeasuredHeight());            //得到 Bitmap  imgExtendImageView1.setDrawingCacheEnabled(true);  imgExtendImageView1.buildDrawingCache(true);  Bitmap obmp = imgExtendImageView1.getDrawingCache();            //压缩成PNG  final ByteArrayOutputStream os = new ByteArrayOutputStream();  obmp.compress(Bitmap.CompressFormat.PNG, 100, os);    //得到二进制数据  img_data = os.toByteArray();       imgExtendImageView1.setDrawingCacheEnabled(false);

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