小编Sun*_*wan的帖子

在Android TV中，将U盘挂载/ mnt / usb / sdb4，使用android DownloadManage，

 File pathyr = new File("/mnt/usb/sdb4");
            Uri downloadUri = Uri.parse(DOWNLOAD_FILE);
            DownloadManager.Request request = new DownloadManager.Request(downloadUri);
            request.setDestinationUri(Uri.fromFile(new File( pathyr,"100mb.jpg") ));

04-20 10:54:05.593: W/dalvikvm(2315): threadid=1: thread exiting with uncaught exception (group=0x40f771f8)
04-20 10:54:05.665: E/AndroidRuntime(2315): FATAL EXCEPTION: main
04-20 10:54:05.665: E/AndroidRuntime(2315): java.lang.SecurityException: Destination must be on external storage: file:///mnt/usb/sdb4/100mb.test.test
04-20 10:54:05.665: E/AndroidRuntime(2315):     at android.os.Parcel.readException(Parcel.java:1327)
04-20 10:54:05.665: E/AndroidRuntime(2315):     at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:181)
04-20 10:54:05.665: E/AndroidRuntime(2315):     at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135)
04-20 10:54:05.665: E/AndroidRuntime(2315):     at android.content.ContentProviderProxy.insert(ContentProviderNative.java:415)
04-20 10:54:05.665: E/AndroidRuntime(2315):     at android.content.ContentResolver.insert(ContentResolver.java:730)
04-20 10:54:05.665: …