Question

我有问题。我有这个清单：

<?xml version="1.0" encoding="utf-8"?>

<uses-permission android:name="android.permission.INTERNET" />



<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="Svět Androida"
    android:theme="@style/MyMaterialTheme">

    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="22"/>
    <activity
        android:name=".welcomescreen"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".MainActivity">

    </activity>

    <activity
        android:name=".Cteni"
        android:parentActivityName=".MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".MainActivity" />
    </activity>
</application>

和应用程序工作正常，但当我想生成apk。它说

uses-sdk必须是manifest的子项

所以我改为：

<?xml version="1.0" encoding="utf-8"?>

<uses-permission android:name="android.permission.INTERNET" />

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="22"/>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="Svět Androida"
    android:theme="@style/MyMaterialTheme">
    <activity
        android:name=".welcomescreen"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".MainActivity">

    </activity>

    <activity
        android:name=".Cteni"
        android:parentActivityName=".MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".MainActivity" />
    </activity>
</application>

我成功生成了apk但当我启动应用时它会停止，因为它无法连接到互联网。

编辑：

清单上的

链接：

https://onedrive.live.com/prev?id=9637B6BAC6554B19%211922&cid=9637B6BAC6554B19&parId=9637B6BAC6554B19%21109&group=0&v=TextFileEditor

这是带错误的日志：

08-04 11:15:02.966    2888-2888/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: simaproject.com.svetandroida, PID: 2888
java.lang.RuntimeException: Unable to start activity ComponentInfo{simaproject.com.svetandroida/simaproject.com.svetandroida.MainActivity}: android.os.NetworkOnMainThreadException
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
        at android.app.ActivityThread.access$800(ActivityThread.java:151)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5254)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
 Caused by: android.os.NetworkOnMainThreadException
        at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1147)
        at java.net.InetAddress.lookupHostByName(InetAddress.java:418)
        at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
        at java.net.InetAddress.getAllByName(InetAddress.java:215)
        at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
        at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
        at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
        at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
        at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
        at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:382)
        at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:332)
        at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:199)
        at java.net.URL.openStream(URL.java:470)
        at simaproject.com.svetandroida.MainActivity.nactiData(MainActivity.java:78)
        at simaproject.com.svetandroida.MainActivity.onCreate(MainActivity.java:57)
        at android.app.Activity.performCreate(Activity.java:5990)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)

请帮忙。感谢。

Answer 1

错误信息很简单：

uses-sdk must be child of manifest

您的清单文件格式错误且缺少<manifest>。请参阅文档：https://developer.android.com/guide/topics/manifest/manifest-intro.html

Answer 2

如果您使用Android Studio删除此行

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="22"/>

因为它出现在build.gradle（Module：app）中的y Gradle Scripts中

Answer 3

你的错误不是权限，你的错误就是这个＆＃34;引起：android.os.NetworkOnMainThreadException＆＃34;这意味着你尝试在主线程中做一些事情，如果你咨询一个web服务或者在asynktask中做了什么

Android权限 - 无法连接到互联网

3 个答案: