Android把Bitmap保存为PNG图像文件的简单方法（同步）

public static void saveBitmapAsPng(Bitmap bmp,File f) {         try {             FileOutputStream out = new FileOutputStream(f);             bmp.compress(Bitmap.CompressFormat.PNG, 100, out);             out.flush();             out.close();         } catch (FileNotFoundException e) {             e.printStackTrace();         } catch (IOException e) {             e.printStackTrace();         }     }