Cordova / Phonegap：在后台线程中运行FileTransfer插件

问题描述：

我看到了一个未解决的问题：在后台主题中执行PhoneGap FileTransfer？

I saw an old unsolved question: Run PhoneGap FileTransfer in background thread?

有关此主题的任何消息吗？

Is there any news regarding this topic?

我使用Cordova 3.4.0 with FileTransfer插件并且当我下载一个文件UI UI开始滞后expiant在装载gif一直冻结的iOS设备

I'm using Cordova 3.4.0 with FileTransfer plugin and when i download a file the UI starts to lag expecially on iOS devices where the loading gif is freezed for all the time

是否有平滑下载文件的替代插件？

Is there any alternative plugin for download files smoothly?

答

我刚刚检查了文件传输的发行说明。此问题已在最新版本中修复：

I just checked the release notes for file-transfer. The issue has been fixed in the latest build:

0.4.3（2014年4月17日）

0.4.3 (Apr 17, 2014)

... CB-5175：[ios] CDVFileTransfer异步下载（修复＃24）
...

... CB-5175: [ios] CDVFileTransfer asynchronous download (Fixes #24) ...

$ b b

不幸的是，这个构建完全打破了文件传输下载，不调用success或fail回调。请参阅 https://issues.apache.org/jira/browse/CB-6720?focusedCommentId=14008776&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14008776 。

我手动修补了CDVFileTransfer.m以包含最新版本的后台线程代码。在下载方法中，您需要替换

I manually patched CDVFileTransfer.m to include the background thread code from the latest version. In the download method you need to replace

[delegate.connection start];

// Downloads can take time
// sending this to a new thread calling the download_async method
dispatch_async(
               dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, (unsigned long)NULL),
               ^(void) { [delegate.connection start];}

对我来说，但显然你是自己的，直到科尔多瓦发布正式的解决方案。

So far this has been working reliably for me, but obviously you're on your own until Cordova releases an official fix.

Cordova / Phonegap：在后台线程中运行FileTransfer插件

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