我的应用程序不会从我的 Main 活动切换到我的 Dashboard 活动。 这个问题是我的意图还是表现出来的？

Question

我创建了一个初始屏幕并设置了一个意图，让它在完成 animation 后切换到我的 DashboardActivity。 但是，当我在我的设备上运行它时，它不会切换到 DashboardActivity。 启动画面完成播放，然后应用程序突然结束。 我有一种预感，问题出在意图或清单中，但我不确定。

这是我的代码：

显现：

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

    <application
        android:allowBackup="true"
        android:icon="@drawable/icon"
        android:label="Brik"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        <activity android:name=".DashboardActivity">
        </activity>
    </application>

</manifest>

主要活动：

public class MainActivity extends AppCompatActivity {

    private static int SPLASH_SCREEN = 4000;

    // Variables
    Animation logoAnim;
    ImageView logo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_main);

        // Animation
        logoAnim = AnimationUtils.loadAnimation(this,R.anim.logo_anim);

        // Hooks
        logo = findViewById(R.id.logo);

        // Set Animation to Image
        logo.setAnimation(logoAnim);

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent intent = new Intent(MainActivity.this, DashboardActivity.class);
                startActivity(intent);
                finish();
            }
        }, SPLASH_SCREEN);

    }
}

编辑

仪表板活动

public class DashboardActivity extends AppCompatActivity {

 @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            ButterKnife.bind(this);

            //all the logic of the onCreate will be put after this comment

            //we now initialize the sdk
            VoxeetSDK.initialize("grB4NiWlMEvzpaLbBKBmVw==", "ap6TnDQpnFUEPlIgrN3ir3hoL2NLrCLHLHd1s_YjYW0=");

            //adding the user_name, login and logout views related to the open/close and conference flow
            add(views, R.id.login);
            add(views, R.id.logout);

            add(buttonsNotLoggedIn, R.id.login);
            add(buttonsNotLoggedIn, R.id.user_name);

            add(buttonsInConference, R.id.logout);

            add(buttonsNotInConference, R.id.logout);

            // Set a random user name
            String[] avengersNames = {
                    "Thor",
                    "Cap",
                    "Tony Stark",
                    "Black Panther",
                    "Black Widow",
                    "Hulk",
                    "Spider-Man",
            };
            Random r = new Random();
            user_name.setText(avengersNames[r.nextInt(avengersNames.length)]);

            // Add the join button and enable it only when not in a conference
            add(views, R.id.join);
            add(buttonsNotInConference, R.id.join);

            // Set a default conference name
            conference_name.setText("Avengers meeting");

            // Add the leave button and enable it only while in a conference
            add(views, R.id.leave);
            add(buttonsInConference, R.id.leave);

        }

Answer 1

错误在您的 manifest.xml 文件中。 您的活动在另一个活动中

<application
        android:allowBackup="true"
        android:icon="@drawable/icon"
        android:label="Brik"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        <activity android:name=".DashboardActivity">
        </activity>
    </application>

将其更改为：

<application
        android:allowBackup="true"
        android:icon="@drawable/icon"
        android:label="Brik"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".DashboardActivity">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>