小编ada*_*rsh的帖子

在Podfile中包含"Firebase/Auth"后,我收到了EXC_BAD_ACCESS.发生这种情况时不添加任何firebase代码行.我在xcode 8上使用swift3,结果pod是 -

Installing Firebase (3.8.0)
Installing FirebaseAnalytics (3.5.1)
Installing FirebaseAuth (3.0.6)
Installing FirebaseCore (3.4.4)
Installing FirebaseInstanceID (1.0.8)
Using GTMOAuth2 (1.1.4)
Using GTMSessionFetcher (1.1.7)
Using GoogleAppUtilities (1.1.2)
Installing GoogleInterchangeUtilities (1.2.2)
Using GoogleSignIn (4.0.1)
Using GoogleSymbolUtilities (1.1.2)
Installing GoogleToolboxForMac 2.1.0 (was 2.1.0)
Using Localize-Swift (1.6)
Using ProtocolBuffers-Swift (3.0.6)
Using QorumLogs (0.9)

错误出现在线程1中 [UIViewController(FIRAScreenClassName) fira_viewDidAppear:]:

仅当pod目标本身是最终嵌入应用程序的框架时才会发生这种情况.

我也有谷歌分析.是因为ARC未启用吗？我如何在xcode-8上执行此操作？还有其他选择吗？

I have a StatefulWidget which I want to use in named route. I have to pass some arguments which I am doing as suggested in https://flutter.dev/docs/cookbook/navigation/navigate-with-arguments i.e.

Navigator.pushNamed(
      context,
      routeName,
      arguments: <args>,
    );

Now, I need to access these argument's in the state's initState method as the arguments are needed to subscribe to some external events. If I put the args = ModalRoute.of(context).settings.arguments; call in initState, I get a runtime exception.

20:49:44.129 4 info flutter.tools I/flutter ( 2680): ??? …

我正在尝试处理来自一个数据存储区（来自项目 A）的一些数据，并将其写入另一个（在项目 B 中）。我的运行失败，但异常-

 com.google.datastore.v1.client.DatastoreException: mismatched databases within request: <unknown!>~projecta vs. <unknown!>~projectb, code=INVALID_ARGUMENT

从云数据流中做这样的事情是不可能的吗？

我正在寻找一种方法从我的应用程序启动设备上的电子邮件应用程序来检查电子邮件。注意：我不想“发送”任何电子邮件，只想“检查”电子邮件。以下代码会导致 Gmail 应用程序崩溃 -

          Intent intent = new Intent(Intent.ACTION_VIEW);\n          intent.setType("message/rfc822");\n          startActivity(intent);\n

堆栈跟踪是 -

06-06 23:26:20.313 27703-27731/? E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1\n                                                   Process: com.google.android.gm, PID: 27703\n                                                   java.lang.RuntimeException: An error occurred while executing doInBackground()\n                                                       at android.os.AsyncTask$3.done(AsyncTask.java:309)\n                                                       at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)\n                                                       at java.util.concurrent.FutureTask.setException(FutureTask.java:223)\n                                                       at java.util.concurrent.FutureTask.run(FutureTask.java:242)\n                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)\n                                                       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)\n                                                       at java.lang.Thread.run(Thread.java:818)\n                                                    Caused by: java.lang.NullPointerException: uri\n                                                       at com.android.internal.util.Preconditions.checkNotNull(Preconditions.java:60)\n                                                       at android.content.ContentResolver.openInputStream(ContentResolver.java:645)\n                                                       at clk.a(SourceFile:8)\n                                                       at clk.loadInBackground(SourceFile:74)\n                                                       at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)\n                                                       at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)\n                                                       at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)\n                                                       at android.os.AsyncTask$2.call(AsyncTask.java:295)\n                                                       at java.util.concurrent.FutureTask.run(FutureTask.java:237)\n                                                       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)\xc2\xa0\n                                                       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)\xc2\xa0\n                                                       at java.lang.Thread.run(Thread.java:818)\xc2\xa0\n

有没有办法仅仅为了检查电子邮件而启动电子邮件应用程序？