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我已经开发了一个应用程序并实现了 GCM（Google Cloud Messaging），它在模拟器和 bluestacks 上运行得非常好，但是当我在设备上运行它时，它不幸停止了，我无法理解原因。

Manifest file


<uses-sdk android:minSdkVersion="8" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.androiddemos.NotificationActivity"
        android:label="@string/app_name" >
    </activity>
    <activity
        android:name=".ResultActivity"
        android:parentActivityName=".MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".NotificationActivity" />
    </activity>
    <activity
        android:name=".GcmActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

    <receiver
        android:name="com.google.android.gcm.GCMBroadcastReceiver"
        android:permission="com.google.android.c2dm.permission.SEND" >
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

            <category android:name="com.example.androiddemos" />
        </intent-filter>
    </receiver>

    <service android:name=".GCMIntentService" >
    </service>
</application>

<permission
    android:name="com.example.androiddemos.permission.C2D_MESSAGE"
    android:protectionLevel="signature" >
</permission>
<!-- App receives GCM messages. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<!-- GCM connects to Google Services. -->
<uses-permission android:name="android.permission.INTERNET" />
<!-- GCM requires a Google account. -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<!-- Keeps the processor from sleeping when a message is received. -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.example.androiddemos.permission.C2D_MESSAGE" />

日志猫 01-09 14:55:27.034: E/AndroidRuntime(25344): java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.example.androiddemos/com.example.androiddemos.MainActivity} 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:236) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:215) 01-09 14:55:27.034: E/AndroidRuntime(25344): at com.example.androiddemos.GcmActivity.sendNotification(GcmActivity.java:70) 01-09 14:55:27.034: E/AndroidRuntime(25344): at com.example.androiddemos.GcmActivity.checkGCM(GcmActivity.java:49) 01-09 14:55:27.034: E/AndroidRuntime(25344): at com.example.androiddemos.GcmActivity$1.onClick(GcmActivity.java:33) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.view.View.performClick(View.java:4084) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.view.View$PerformClick.run(View.java:16966) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.os.Handler.handleCallback(Handler.java:615) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.os.Handler.dispatchMessage(Handler.java:92) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.os.Looper.loop(Looper.java:137) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.app.ActivityThread.main(ActivityThread.java:4745) 01-09 14:55:27.034: E/AndroidRuntime(25344): at java.lang.reflect.Method.invokeNative(Native Method) 01-09 14:55:27.034: E/AndroidRuntime(25344): at java.lang.reflect.Method.invoke(Method.java:511) 01-09 14:55:27.034: E/AndroidRuntime(25344): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 01-09 14:55:27.034: E/AndroidRuntime(25344): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 01-09 14:55:27.034: E/AndroidRuntime(25344): at dalvik.system.NativeStart.main(Native Method) 01-09 14:55:27.034: E/AndroidRuntime(25344): Caused by: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.example.androiddemos/com.example.androiddemos.MainActivity} 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.app.ApplicationPackageManager.getActivityInfo(ApplicationPackageManager.java:225) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.support.v4.app.NavUtils.getParentActivityName(NavUtils.java:298) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.support.v4.app.NavUtils.getParentActivityIntent(NavUtils.java:261) 01-09 14:55:27.034: E/AndroidRuntime(25344): at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:229) 01-09 14:55:27.034: E/AndroidRuntime(25344): ... 15 more

4

1 回答 1

3

我认为问题是因为您没有根据此 logcat 行在清单中定义 MainActivity：

14:55:27.034: E/AndroidRuntime(25344): Caused by:
android.content.pm.PackageManager$NameNotFoundException:
ComponentInfo{com.example.androiddemos/com.example.androiddemos.MainActivity} 01-09

您将 MainActivity 引用为 parentActivityName 但根本没有在清单中定义：

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

如果您仍在使用 MainActivity，则需要将其添加到清单中：

<activity
    android:name=".MainActivity">
</activity>
于 2013-01-09T16:26:18.200 回答