Android把Bitmap保存为PNG图像文件的简单代码

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(); 
    }  
}