Android将bitmap保存到自定义路径

public void saveMyBitmap(String bitName,Bitmap mBitmap){
          File f = new File("/sdcard/" + bitName + ".jpg");
          picPath="/sdcard/" + bitName + ".png";
          try {
           f.createNewFile();
          } catch (IOException e) {
           // TODO Auto-generated catch block
         //  DebugMessage.put("在保存图片时出错："+e.toString());
          }
          FileOutputStream fOut = null;
          try {
           fOut = new FileOutputStream(f);
          } catch (FileNotFoundException e) {
           e.printStackTrace();
          }
          mBitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
          try {
           fOut.flush();
          } catch (IOException e) {
           e.printStackTrace();
          }
          try {
           fOut.close();
          } catch (IOException e) {
           e.printStackTrace();
          }
         }