java - 异常 android.support.multidex.MultiDexApplication 不能投类

Question

我有一个问题，我的应用程序生成了这个异常，我不明白。我已经在我的 build.gradle 中实现了 multiDexEnabled

  Caused by: java.lang.ClassCastException: android.support.multidex.MultiDexApplication cannot be cast to com.example.AnalyticsApplication

我的类 Java

public class Splash extends Activity {

 private Tracker mTracker;

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

  setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setContentView(R.layout.activity_splash);

  //Analitycs
  AnalyticsApplication application = (AnalyticsApplication) getApplication();
  mTracker = application.getDefaultTracker();
  mTracker.setScreenName("Splash");
  mTracker.send(new HitBuilders.ScreenViewBuilder().build());

文件 Gradle

 defaultConfig {
    multiDexEnabled true
}

list .xml

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

<application
android:name="android.support.multidex.MultiDexApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activityandroid:name=".Splash">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>
<categoryandroid:name="android.intent.category.LAUNCHER"/>
</intent-filter></activity>
</application>

Answer 1

我认为您应该将 AnalyticsApplication 类扩展到您自己的类中，如下所示:

public class YourApplicationName extends AnalyticsApplication {

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

          setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
          requestWindowFeature(Window.FEATURE_NO_TITLE);
          setContentView(R.layout.activity_splash);

          //Analitycs
          AnalyticsApplication application = (AnalyticsApplication) getApplication();
          mTracker = application.getDefaultTracker();
          mTracker.setScreenName("Splash");
          mTracker.send(new HitBuilders.ScreenViewBuilder().build());
     }

     // Here you will enable Multidex
     @Override
     protected void attachBaseContext(Context base) {
          super.attachBaseContext(base);
          MultiDex.install(getBaseContext());
     }

}

在此之后，您必须将 AndroidManifest.xml 文件更改为:

<application
     android:name="path.to.YourApplicationName"
     ...

请查看此链接以获取更多信息:http://developer.android.com/reference/android/support/multidex/MultiDex.html