開始時適用於Android應用的Google Analytics API v4崩潰

Question

我已經為Google Analytics（分析）API v4設置了所有功能，如此處所述： https : //developers.google.com/analytics/devguides/collection/android/v4/以及此處： http : //www.javacodegeeks.com/2014 /04/working-with-google-analytics-api-v4-for-android.html

我完成了所有步驟。

我運行我的應用程序但崩潰了

這是我的global_tracker.xml

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools" tools:ignore="TypographyDashes">

    <!-- The apps Analytics Tracking Id -->
    <string name="ga_trackingId">UA-XXXXXX-15</string>

    <!-- Percentage of events to include in reports -->
    <string name="ga_sampleFrequency">100.0</string>

    <!-- Enable automatic Activity measurement -->
    <bool name="ga_autoActivityTracking">true</bool>

    <!-- catch and report uncaught exceptions from the app -->
    <bool name="ga_reportUncaughtExceptions">true</bool>

    <!-- How long a session exists before giving up -->
    <integer name="ga_sessionTimeout">-1</integer>

    <!-- If ga_autoActivityTracking is enabled, an alternate screen name can be specified to substitute for the full length canonical Activity name in screen view hit. In order to specify an alternate screen name use an <screenName> element, with the name attribute specifying the canonical name, and the value the alias to use instead. -->
    <screenName name="com.example.test.MainActivity">MainActivity</screenName>
</resources>

這是我的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.test">

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

    <uses-feature android:name="android.hardware.camera"></uses-feature>

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />



    <application
        android:name=".Global"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/Theme.AppCompat">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="com.example.test.MESSAGE" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

        </activity>

        <activity
            android:name=".SelectedImageActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait">

        </activity>

        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <!-- Google Analytics Version v4 needs this value for easy tracking -->
        <meta-data android:name="com.google.android.gms.analytics.globalConfigResource"
            android:resource="@xml/global_tracker" />

        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:screenOrientation="portrait" />
    </application>

</manifest>

這是我的AnalyticsApplication.java

 public enum TrackerName {
    APP_TRACKER,
    GLOBAL_TRACKER,
    E_COMMERCE_TRACKER,
}
HashMap<TrackerName, Tracker> mTrackers = new HashMap<TrackerName, Tracker>();
synchronized Tracker getTracker(TrackerName trackerId) {
    if (!mTrackers.containsKey(trackerId)) {
        GoogleAnalytics analytics = GoogleAnalytics.getInstance(this);
        analytics.getLogger().setLogLevel(Logger.LogLevel.VERBOSE);
        Tracker t = null;
        if(trackerId==TrackerName.GLOBAL_TRACKER){
            t= analytics.newTracker("UA-66XXXXX-1");
        }
        mTrackers.put(trackerId, t);
    }
    return mTrackers.get(trackerId);
}

}

這是我的MainActivity類：

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        getWindow().setSoftInputMode(
                WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);

        setContentView(R.layout.activity_main);
        getSupportActionBar().hide();

        //Get a Tracker (should auto-report) 2
        Tracker tracker = ((AnalyticsApplication) getApplication()).getTracker(AnalyticsApplication.TrackerName.GLOBAL_TRACKER);
        tracker.setScreenName("MainActivity");

///////////////////////////////////////////////////////////

@Override
    protected void onStart() {
        super.onStart();
        GoogleAnalytics.getInstance(this).reportActivityStart(this);
    }

    @Override
    protected void onStop() {
        super.onStop();
        GoogleAnalytics.getInstance(this).reportActivityStop(this);
    }

我的構建搖籃 ：

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.2.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

構建Gradle ：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "com.example.test"
        minSdkVersion 16
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"


    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile files('libs/main.jar')

     compile 'com.android.support:appcompat-v7:22.2.1'
    compile 'com.commit451:NativeStackBlur:1.0.1'
    compile 'com.google.android.gms:play-services-ads:7.3.0'
    compile 'com.squareup.picasso:picasso:2.5.0'
    compile 'com.github.bumptech.glide:glide:3.6.1'
    compile 'com.android.support:support-v4:21.0.0'
  }

我的日志 ：

01-10 22:29:13.627  11614-11620/? E/jdwp﹕ Failed sending reply to debugger: Broken pipe
01-10 22:29:13.791  11614-11614/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.test/com.example.test.MainActivity}: java.lang.ClassCastException: com.example.test.Global cannot be cast to com.example.test.AnalyticsApplication
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.ClassCastException: com.example.test.Global cannot be cast to com.example.test.AnalyticsApplication
            at com.example.test.MainActivity.onCreate(MainActivity.java:52)
            at android.app.Activity.performCreate(Activity.java:5104)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method) 

Answer 1

在清單中，您已報告：

<application 
    android:name=".Global"

根據您的堆棧跟蹤， AnalyticsApplication是Application類，因此應為：

<application 
    android:name=".AnalyticsApplication"