适用于iOS的Google Maps SDK尝试在iOS 4.3上运行 [英] Google Maps SDK for iOS trying to run on iOS 4.3

问题描述

我已成功将 sdk 与我的应用集成。
我的应用程序适用于适用于iOS6的Google Maps sdk ，
以及Apple UIMapKit for iOS 4.3和5.x.
由于我添加了谷歌地图框架，
ios 4.3将不再运行。
我将 GLKit.framework 和 GoogleMaps.framework 更改为可选，
和在应用程序启动之前，我得到 dyld：未找到符号：_NSFileProtectionCompleteUntilFirstUserAuthentication 。
需要你的帮助:-)

I successfully integrated the sdk with my app. My app is intended to run with Google Maps sdk for iOS6, and with Apple UIMapKit for iOS 4.3 and 5.x . Since I added the google maps framework, ios 4.3 won't run anymore. I changed the GLKit.framework and GoogleMaps.framework to "optional", and I get dyld: Symbol not found: _NSFileProtectionCompleteUntilFirstUserAuthentication before the app even starts. need your help :-)

推荐答案

我的应用程序在iOS 4.3上运行正常， GLKit.framework 和 GoogleMaps.framework 设置为可选，如果我删除了对Google API的所有调用。

My app runs okay on iOS 4.3, with GLKit.framework and GoogleMaps.framework set to optional, and if I remove all calls to the Google API.

对 NSFileProtectionCompleteUntilFirstUserAuthentication 的引用是否可能是由您的某些其他代码或其他框架引起的？

Could the reference to NSFileProtectionCompleteUntilFirstUserAuthentication be caused by some of your other code or other frameworks?

更新：

实际上以上是错误的。我忘了在 -ObjC 链接器标记adding_the_google_maps_sdk_for_ios_to_your_projectrel =nofollow>说明。如果没有 -ObjC ，该应用程序可以在iOS 4.3上正常运行。如果没有iOS 6上的 -ObjC 标志，对 [GMSServices provideAPIKey] 的调用会成功，但对<$ c的调用会成功$ c> [GMSMapView mapWithFrame：camera：] 无声地失败（返回nil），所以这不是一个选项。

Actually the above is wrong. I had forgotten to include the -ObjC linker flag in step 7 of the instructions. Without the -ObjC the app is able to run fine on iOS 4.3. Without the -ObjC flag on iOS 6 the call to [GMSServices provideAPIKey] succeeds, but the call to [GMSMapView mapWithFrame:camera:] fails silently (returns nil), so this isn't an option.

使用 -ObjC 标志到位，在iOS 4.3上我得到了与 _NSFileProtectionCompleteUntilFirstUserAuthentication 相同的错误。

With the -ObjC flag in place, on iOS 4.3 I get the same error about _NSFileProtectionCompleteUntilFirstUserAuthentication.

我尝试将 -ObjC 更改为 -force_load $（PROJECT_DIR）/GoogleMaps.framework/GoogleMaps ，仅强制加载Google Maps API而不是其他库，但在iOS 4.3上仍然无法加载。

I tried changing -ObjC to -force_load $(PROJECT_DIR)/GoogleMaps.framework/GoogleMaps, to only force loading of the Google Maps API and not other libraries, but it still fails on iOS 4.3.

我认为 - ObjC 或 -force_load 覆盖了设置 GoogleMaps.framework 可选。

I presume that the -ObjC or -force_load are overriding the setting to make GoogleMaps.framework optional.

此外，在iOS 5.0上，我收到类似的关于 _NSURLIsExcludedFromBackupKey 的错误。不过，我认为它可以在iOS 5.1上运行。 @ tomeron11，您测试的是什么版本的5.x？

Also, on iOS 5.0 I get a similar error about _NSURLIsExcludedFromBackupKey. I'm presuming it would work on iOS 5.1, though. @tomeron11, what version of 5.x were you testing with?

更新2：

感觉好像是一个可怕的黑客攻击，但是将以下内容添加到项目中的某个.m文件允许它在iOS 5.0上运行：

It feels like a horrible hack, but adding the following to one of the .m files in the project allows it to work on iOS 5.0:

NSString* const NSURLIsExcludedFromBackupKey = @"NSURLIsExcludedFromBackupKey";

这不会似乎导致iOS 6.0出现问题，甚至虽然这个符号已被定义了两次，但我不确定它是否可以信任。

This doesn't seem to cause a problem on iOS 6.0, even though the symbol will have been defined twice, although I'm not sure if it can be trusted.

对于iOS 4.3，我尝试通过添加：

For iOS 4.3 I tried doing the equivalent, by adding:

NSString* const NSFileProtectionCompleteUntilFirstUserAuthentication = 
    @"NSFileProtectionCompleteUntilFirstUserAuthentication";

这会停止关于 _NSFileProtectionCompleteUntilFirstUserAuthentication 的错误，但是然后我得到以下错误：

This stops the error about _NSFileProtectionCompleteUntilFirstUserAuthentication, but then I get the following error instead:

dyld: Symbol not found: _OBJC_CLASS_$_NSMutableOrderedSet

我不确定是否有办法欺骗链接器在iOS 4.3上看到NSMutableOrderedSet的虚拟版本。

I'm not sure if there is a way to fool the linker into seeing a dummy version of NSMutableOrderedSet on iOS 4.3.

更新3：

SDK文档说支持的最低平台是iOS 5.1 。

Google已将以错误报告关闭为WontFix ，所以似乎没有办法让它在5.0或更低版本上运行。

Google have closed the bug report as WontFix, so it seems there will be no way to get it to work on 5.0 or below.

更新4：

Google有将错误重新打开为增强功能。

更新5：

SDK的最新版本1.1.0现在不再在iOS 5.0上启动时崩溃。

The latest version 1.1.0 of the SDK now no longer crashes on startup on iOS 5.0.

然而， Google不会修复iOS 4.x上的崩溃。

由于SDK仅正式支持iOS 5.1+，但在iOS 5.0上启动时不再崩溃，如果您尝试创建 GMSMapView 然后它崩溃并显示错误消息：

Since the SDK only officially supports iOS 5.1+, although it no longer crashes on startup on iOS 5.0, if you try to create a GMSMapView then it crashes with an error message:

Google Maps SDK for iOS仅支持iOS 5.1 +

Google Maps SDK for iOS only supports iOS 5.1+

如果您使用的hack在5.0上启动时不会崩溃，即：

If you use the hack which used to make it not crash on startup on 5.0, ie this:

NSString* const NSURLIsExcludedFromBackupKey = @"NSURLIsExcludedFromBackupKey";

然后SDK将在iOS 5.0上运行。它似乎有效，但它可能不是一个好主意，因为它没有得到Google的正式支持。

Then the SDK will run on iOS 5.0. It seems to work, but it's probably not a good idea, as it is not officially supported by Google.

这篇关于适用于iOS的Google Maps SDK尝试在iOS 4.3上运行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！