图片文件和Bitmap之间的转换

图片文件转为Bitmap对象String filePath="c:/01.jpg";Bitmap bitmap=BitmapFactory.decodeFile(filePath);如果图片过大，可能导致Bitmap对象装不下图片解决办法：String filePath="c:/01.jpg"; Bitmap bitmap=BitmapFactory.decodeFile(filePath,getBitmapOption(2)); //将图片的长和宽缩小味原来的1/2private Options getBitmapOption(int inSampleSize){        System.gc();        BitmapFactory.Options options = new BitmapFactory.Options();        options.inPurgeable = true;        options.inSampleSize = inSampleSize;        return options;}Bitmap对象保存味图片文件public void saveBitmapFile(Bitmap bitmap){            File file=new File("/mnt/sdcard/pic/01.jpg");//将要保存图片的路径            try {                    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));                    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);                    bos.flush();                    bos.close();            } catch (IOException e) {                    e.printStackTrace();            }}

转载于:https://www.cnblogs.com/lidongliang/p/4204960.html