运行最新版本时没有“最新”消息？

Question

我正在尝试将Sparkle与 Qt（Go 绑定）应用程序结合使用。闪闪发光.m：#import <Headers/SUUpdater.h>static SUUpdater* updater = nil;void sparkle_checkUpdates(){    if (!updater) {        updater = [[SUUpdater sharedUpdater] retain];    }    [updater setUpdateCheckInterval:3600];    [updater checkForUpdatesInBackground];}火花.去：// +build darwin windowspackage main/*#cgo CFLAGS: -I ${SRCDIR}/Sparkle.framework#cgo LDFLAGS: -F ${SRCDIR} -framework Sparklevoid sparkle_checkUpdates();*/import "C"func sparkle_checkUpdates() {    C.sparkle_checkUpdates()}在 中main.go，我添加了一个菜单来调用该函数：package mainimport (    "github.com/therecipe/qt/widgets")func main() {    action := widgets.NewQMenuBar(nil).AddMenu2("").AddAction("Check for Updates...")    // http://doc.qt.io/qt-5/qaction.html#MenuRole-enum    action.SetMenuRole(widgets.QAction__ApplicationSpecificRole)    action.ConnectTriggered(func(bool) { sparkle_checkUpdates() })}有更新时它工作正常：下载、提取、安装、重新启动……但是当运行最新版本时，单击“检查更新……”菜单没有任何反应。没有弹出窗口说我们是最新的，像这样：在控制台中，我只看到这个：[3 <private> stream, pid: 90977, url: https://example.com/appcast.xml, traffic class: 200, tls] cancelled    [3.1 70A1F65B-7E7A-4ED2-AB8B-A21621ED7658 <private>.58040<-><private>]    Connected Path: satisfied (Path is satisfied), interface: en0, ipv4, dns    Duration: 0.497s, DNS @0.000s took 0.001s, TCP @0.003s took 0.051s, TLS took 0.113s    bytes in/out: 4481/675, packets in/out: 6/3, rtt: 0.053s, retransmitted packets: 0, out-of-order packets: 0应用广播.xml：<?xml version="1.0" standalone="yes"?><rss xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" version="2.0">  <channel>    <title>Premium VPN</title>    <item>      <title>1.0.0.2905</title>      <pubDate>Tue, 11 Dec 2018 11:09:10 +0800</pubDate>      <sparkle:minimumSystemVersion>10.7</sparkle:minimumSystemVersion>      <enclosure url="https://example.com/x.zip" sparkle:version="1.0.0.2905" sparkle:shortVersionString="1.0.0.2905" sparkle:edSignature="x" length="104408678" type="application/octet-stream"/>    </item>  </channel></rss>我错过了什么？

Answer 1

仔细看checkForUpdatesInBackground：

/*!

 Checks for updates, but does not display any UI unless an update is found.

 This is meant for programmatically initating a check for updates. That is,

 it will display no UI unless it actually finds an update, in which case it

 proceeds as usual.

 If automatic downloading of updates it turned on and allowed, however,

 this will invoke that behavior, and if an update is found, it will be downloaded

 in the background silently and will be prepped for installation.

 This will not find updates that the user has opted into skipping.

 */

- (void)checkForUpdatesInBackground;

因此，使用此方法，只有在找到更新时才会显示 UI。

我想要的是checkForUpdates：

/*!

 Explicitly checks for updates and displays a progress dialog while doing so.

 This method is meant for a main menu item.

 Connect any menu item to this action in Interface Builder,

 and Sparkle will check for updates and report back its findings verbosely

 when it is invoked.

 This will find updates that the user has opted into skipping.

 */

 - (IBAction)checkForUpdates:(id)sender;