java - 您是否在 AndroidManifest.xml 中声明了此 Activity ？登录 Activity

Question

即使我的 Activity 作为启动器位于 Android list 文件中，我仍然收到此错误。

Unable to find explicit activity class {com.alpha.hifivepro/com.alpha.hifivepro.activities.LoginActivity}; have you declared this activity in your AndroidManifest.xml?

我在这三个位置遇到错误。当用户单击注销按钮时，他们应该进入登录 Activity ，但我不断收到上述错误。有什么帮助吗？

    private void handleLogout() {

        mAuth.signOut();
        SendUserToLoginActivity();

    }

    private void SendUserToLoginActivity() {

        Intent loginIntent = new Intent(MainActivity.this, LoginActivity.class);
        loginIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(loginIntent);
    }

AndroidManifest.xml

    <application
        android:name=".utils.MyApp"
        android:allowBackup="false"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="false"
        android:theme="@style/AppTheme"
        tools:replace="android:supportsRtl,android:allowBackup">
        <activity android:name=".activities.authentication.RegisterActivity"></activity>
        <!--
             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" />

        <activity
            android:name=".activities.PickPlaceMapsActivity"
            android:label="@string/title_activity_pick_place_maps" />
        <activity
            android:name=".activities.authentication.LoginActivity"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

Answer 1

您的 list 具有 .activities.authentication.LoginActivity，但错误显示 .activities.LoginActivity。您需要更正 list 以使用相同的包名称，或者将 LoginActivity 移至 authentication 包。