run-android在连接到设备时给出错误

我在AwesomeProject入门示例（ https://facebook.github.io/react-native/docs/getting-started.html）中添加了启动画面https://medium.com/handlebar-labs/how-to-add-a-splash-screen-to-a-react-native-app-ios-and-android-30a3cec835ae。run-android在连接到设备时给出错误

我连我的Nexus 6P就跑反应原生运行Android和我收到此错误

This build could be faster, please consider using the Gradle Daemon: https://docs.gradle.org/2.14.1/userguide/gradle_daemon.html 
Running /home/Android/Sdk/platform-tools/adb -s 84B7N15A10013562 reverse tcp:8081 tcp:8081 
Starting the app on 84B7N15A10013562 (/home/Android/Sdk/platform-tools/adb -s 84B7N15A10013562 shell am start -n com.testprj1/.MainActivity)... 
Starting: Intent { cmp=com.testprj1/.MainActivity } 
java.lang.SecurityException: Permission Denial: starting Intent { flg=0x10000000 cmp=com.testprj1/.MainActivity } from null (pid=23823, uid=2000) not exported from uid 10161 
     at android.os.Parcel.readException(Parcel.java:1684) 
     at android.os.Parcel.readException(Parcel.java:1637) 
     at android.app.ActivityManagerProxy.startActivityAsUser(ActivityManagerNative.java:3137) 
     at com.android.commands.am.Am.runStart(Am.java:643) 
     at com.android.commands.am.Am.onRun(Am.java:394) 
     at com.android.internal.os.BaseCommand.run(BaseCommand.java:51) 
     at com.android.commands.am.Am.main(Am.java:124) 
     at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method) 
     at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:262)

但是，如果我运行模拟器上进行同样的没有错误

来源

2017-05-26 shresthaal

也许有年底推出是你的模拟器中的一些缓存，Android平台总是做到这一点 –

@shresthaal，检查我的答案，让我知道它是否适用于你 –

按照您发布的教程，您的新启动器活动是SplashActivity而不是MainActivity。但默认情况下，react-native cli会尝试启动导致此权限错误的MainActivity。在此路径中阅读runAndroid.js文件中的代码; your_project/node_modules /反应本地/本地CLI/runAndroid.js。还请检查这些命令，您可以在启动应用程序时使用这些命令。

module.exports = { 
    name: 'run-android', 
    description: 'builds your app and starts it on a connected Android 
    emulator or device', 
    func: runAndroid, 
    options: [{ 
     command: '--install-debug', 
    }, 
    { 
     command: '--root [string]', 
     description: 'Override the root directory for the android build (which contains the android directory)', 
     default: '', 
    }, 
    { 
     command: '--flavor [string]', 
     description: '--flavor has been deprecated. Use --variant instead', 
    }, 
    { 
     command: '--variant [string]', 
    }, 
    { 
     command: '--main-activity [string]', 
     description: 'Name of the activity to start', 
     default: 'MainActivity', 
    }, 
    { 
     command: '--deviceId [string]', 
     description: 'builds your app and starts it on a specific device/simulator with the given device id (listed by running "adb devices" on the command line).', 
    }, 
    { 
     command: '--no-packager', 
     description: 'Do not launch packager while building', 
    }], 
};

它不应该在模拟器上工作。尝试从模拟器卸载应用程序并再次运行，它将无法工作。

我们解决这一问题在运行终端

react-native run-android --main-activity SplashActivity

注意下面的命令，我们将活动名称使用“- 主活动”命令

来源

2017-05-27 21:02:04

run-android在连接到设备时给出错误

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