Android4.4 sd卡写入权限问题急求

a81658804 2015-05-09 10:33:40

要把服务器那到的图片保存到本地，图片显示没有问题，保存时保错
这是报的错java.io.IOException: open failed: EACCES (Permission denied)

权限该写的应该都写了吧：

<uses-permission android:name="android.permission.INTERNET"/>

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAG"/>

    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>

    <permission android:name="android.permission.WRITE_MEDIA_STORAGE" />

下面是代码：如果路径用第5行的，10行显示false,文件夹没有创建成功
如果用第6行,13行显示路径没有问题，但是17行报上述错误

private boolean saveToLocal(){

		boolean result = false;

		

		String fileName = MD5Converter.getMD5(currentImage) + ".jpg";

		String path = Environment.getExternalStorageDirectory() + "/savedImage/";

 //String path = Environment.getExternalStorageDirectory() + "/";

		File folder = new File(path);

		if (!folder.exists()) {

			boolean b = folder.mkdirs();

			Toast.makeText(getApplicationContext(), b+"", 1).show();  

		}

		File file = new File(path + fileName);

		Toast.makeText(getApplicationContext(), file.getAbsolutePath(), 1).show();  

		if (!file.exists()) {

			try {

				if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){  

					file.createNewFile();

//					BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));

//					bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bos);

//					bos.flush();

//					bos.close();

//	                Toast.makeText(getApplicationContext(), "Saved!", 1).show();  

					Toast.makeText(getApplicationContext(), file.getPath(), 1).show();  

	            }else{  

	                Toast.makeText(getApplicationContext(), "SD card error", 1).show();  

	            }  

				//update gallery

				Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);

				Uri uri = Uri.fromFile(file);

				intent.setData(uri);

				this.sendBroadcast(intent);

			} catch (IOException e) {

				e.printStackTrace();

			}

		}



		return result;

	}