java.lang.ClassCastException：無法將Application1強制轉換為Application2

Question

我收到以下錯誤：

java.lang.ClassCastException: com.example.cillin.map.AuthenticationApplication cannot be cast to com.example.cillin.map.NBHAuthenticationApplication

這是標記錯誤的行：

NBHAuthenticationApplication myNBHApp = (NBHAuthenticationApplication) getApplication();

這是該行所在的類：

import android.app.Activity;
import android.os.Bundle;

public class NBHBaseActivity extends Activity
{
    protected NBHAuthService mNBHAuthService;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        NBHAuthenticationApplication myNBHApp = (NBHAuthenticationApplication) getApplication();
        myNBHApp.setCurrentNBHActivity(this);
        mNBHAuthService = myNBHApp.getNBHAuthService();
    }
}

這是NBHAuthenticationApplication類：

public class NBHAuthenticationApplication extends Application
{
    private NBHAuthService mNBHAuthService;
    private Activity mCurrentNBHActivity;

    public NBHAuthenticationApplication() {}

    public NBHAuthService getNBHAuthService() {
        if (mNBHAuthService == null) {
            mNBHAuthService = new NBHAuthService(this);
        }
        return mNBHAuthService;
    }

    public void setCurrentNBHActivity(Activity NBHactivity) {
        mCurrentNBHActivity = NBHactivity;
    }

    public Activity getCurrentActivity() {
        return mCurrentNBHActivity;
    }
}

關於為什么會發生此錯誤的任何想法？ 我已將文件添加到清單文件中，如類似問題中所建議的那樣，出現此錯誤，但仍然沒有運氣。

表現：

<application
        android:largeHeap="true"
        android:name="AuthenticationApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme" >


        <!--
             The API key for Google Maps-based APIs is defined as a string resource.
             (See the file "res/values/google_maps_api.xml").
             Note that the API key is linked to the encryption key used to sign the APK.
             You need a different API key for each encryption key, including the release key that is used to
             sign the APK for publishing.
             You can define the keys for the debug and release targets in src/debug/ and src/release/. 
        -->
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="@string/google_maps_key" />
        <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />

        <activity
            android:name=".MapsActivity"
            android:label="@string/title_activity_maps" >

        </activity>
        <activity
            android:name=".MainMenu"
            android:label="@string/MainMenu" >

        </activity>
        <activity
            android:name=".CrimeInput"
            android:label="@string/MainMenu" >
        </activity>
        <activity
            android:name=".CoverPage"
            android:label="@string/MainMenu" >
        </activity>
        <activity
            android:name=".LoggedInActivity"
            android:label="LoggedIn" >
        </activity>
        <activity
            android:name=".RegisterAccountActivity"
            android:label="Register" >
        </activity>
        <activity
            android:name=".BaseActivity"
            android:label="Base" >
        </activity>
        <activity
            android:name=".AuthenticationActivity"
            android:label="Authentication" >
        </activity>
        <activity
            android:name=".NBHBaseActivity"
            android:label="Base" >
        </activity>
        <activity
            android:name=".CustomLoginActivity"
            android:label="Login" >
        </activity>
        <activity
            android:name=".Newsfeed"
            android:label="Login"
            android:windowSoftInputMode="adjustResize">
        </activity>
        <activity
        android:name=".NewsfeedInput"
        android:label="@string/MainMenu" >
    </activity>
        <activity
        android:name=".InfoWindowList"
        android:label="@string/MainMenu" >
    </activity>
        <activity
            android:name=".CrimeStats"
            android:label="@string/MainMenu" >
        </activity>
        <activity
        android:name=".GardaRegister"
        android:label="@string/MainMenu" >
    </activity>
        <activity
            android:name=".GardaLoginActivity"
            android:label="@string/MainMenu" >
        </activity>
        <activity
            android:name=".NeighborhoodRegister"
            android:label="@string/MainMenu" >
        </activity>
        <activity
            android:name=".NeighborhoodLogin"
            android:label="@string/MainMenu" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

Answer 1

更換：

android:name="AuthenticationApplication"

與：

android:name="NBHAuthenticationApplication"