android 12 U盘 /mnt/media_rw 下读取文件异常 没有权限

if (Build.VERSION.SDK_INT >= 30) {
            if (mImageFilePath.startsWith("/data/media")) {
                tempPath = mImageFilePath.replace("/data/media", "/storage/emulated");
            } else if (mImageFilePath.startsWith("/mnt/media_rw")) {
                tempPath = mImageFilePath.replace("/mnt/media_rw", "/storage");
            }
 
        }

        if (Build.VERSION.SDK_INT >= 30) { // Build.VERSION_CODES.R
            Log.d(TAG, "installPackage SDK version >= Build.VERSION_CODES.R,should convert update file path.");
            if (parsedUpdate.mUrl.startsWith("file:///storage/emulated/0")) {
                convertPath = parsedUpdate.mUrl.replace("/storage/emulated/0", "/data/media/0");
                Log.d(TAG, "startsWith(\"file:///storage/emulated/0\")");
            } else if (parsedUpdate.mUrl.startsWith("file:///storage")) {
                convertPath = parsedUpdate.mUrl.replace("/storage", "/mnt/media_rw");
                Log.d(TAG, "startsWith(\"file://storage\")");
            }
            Log.d(TAG, "installPackage update " + parsedUpdate.mUrl + " to " + convertPath);
        }