Question

我跟着this guide - Splash screens the right way为我的Android应用创建了一个启动画面，现在我有2个活动（MainActivity和SplashActivity）

问题在于，Deep Links会立即失败，因为他们不会启动MainActivity而是启动SplashActivity。

除了应用程序启动时，我不希望SplashActivity显示出来。

我该怎么办？

SplashActivity：

public class SplashActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Intent intent = new Intent(this, MainActivity.class);
        startActivity(intent);
        finish();
    }
}

MainActivity：

public class MainActivity extends SplashActivity implements OnImagePickerPermissionsCallback {

    private PermissionListener listener;

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

    @Override
    public void setPermissionListener(PermissionListener listener)
    {
        this.listener = listener;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
    {
        if (listener != null)
        {
            listener.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }


    @Override
    public View createSplashLayout() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(getResources().getColor(R.color.navBarColor));
        }
        LinearLayout view = new LinearLayout(this);
//        view.setBackgroundColor(getResources().getColor(R.color.catalyst_redbox_background));
        view.setBackgroundResource(R.drawable.launch_screen_radius);
        return view;
    }
}

清单文件：

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

<!-- For using react-native-fcm CLOUD MESSAGING-->
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.VIBRATE" />


<!-- For using react-native-image-picker -->
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<!-- For react-native-webview-file-upload-android -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>


<!-- For using NetInfo -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<uses-sdk
    android:minSdkVersion="16"
    android:targetSdkVersion="24" />

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

    <!-- The 2 services below are for react-native-fcm cloud messaging -->
    <service android:name="com.evollu.react.fcm.MessagingService" android:enabled="true" android:exported="true">
        <intent-filter>
            <action android:name="com.google.firebase.MESSAGING_EVENT"/>
        </intent-filter>
    </service>
    <service android:name="com.evollu.react.fcm.InstanceIdService" android:exported="false">
        <intent-filter>
            <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
        </intent-filter>
    </service>

    <!-- The 2 receivers below are for react-native-fcm local notifications-->
    <receiver android:name="com.evollu.react.fcm.FIRLocalMessagingPublisher"/>
    <receiver android:enabled="true" android:exported="true"  android:name="com.evollu.react.fcm.FIRSystemBootEventReceiver">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED"/>
            <action android:name="android.intent.action.QUICKBOOT_POWERON"/>
            <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>

    <activity
        android:name=".SplashActivity"
        android:label="@string/app_name"
        android:theme="@style/SplashTheme">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:windowSoftInputMode="adjustResize"
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
        android:screenOrientation="portrait"
        android:launchMode="singleTop"
        >
        <!-- launchMode="singleTop" is for fcm cloud messaging -->
        <intent-filter>
            <action android:name="android.intent.action.DOWNLOAD_COMPLETE"/>
        </intent-filter>

        <!--
            The intent filter below are for react-native-fcm click_action
            https://github.com/evollu/react-native-fcm#config-for-notification-and-click_action-in-android
        -->
        <intent-filter>
            <action android:name="fcm.ACTION.HELLO" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>

        <intent-filter>
            <!-- Sets the intent action to view the activity -->
            <action android:name="android.intent.action.VIEW" />

            <!-- Allows the deep link to be used without specifying the app name -->
            <category android:name="android.intent.category.DEFAULT" />

            <!-- Allows the link to be opened from a web browser -->
            <category android:name="android.intent.category.BROWSABLE" />

            <!-- Accepts URIs that begin with "https://www.myExampleDomain.com -->
            <data android:scheme="https" android:host="www.myExampleDomain.com" />

            <!-- Accepts URIs that begin with "myExampleDomain:// -->
            <data android:scheme="myExampleDomain"/>
        </intent-filter>
    </activity>
    <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
</application>

编辑：有人指出我正在使用SplashActivity。这是真的，这是以下活动的代码。它是react-native-navigation我用于屏幕导航的库的一部分。不确定这是否有帮助，但这里是代码：

SplashActivity：

public abstract class SplashActivity extends AppCompatActivity {
    public static boolean isResumed = false;

    public static void start(Activity activity) {
        Intent intent = activity.getPackageManager().getLaunchIntentForPackage(activity.getPackageName());
        if (intent == null) return;
        intent.setAction(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_LAUNCHER);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        activity.startActivity(intent);
    }

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setSplashLayout();
        IntentDataHandler.saveIntentData(getIntent());
    }

    @Override
    protected void onResume() {
        super.onResume();
        isResumed = true;

        if (NavigationApplication.instance.getReactGateway().hasStartedCreatingContext()) {
            if (CompatUtils.isSplashOpenedOverNavigationActivity(this, getIntent())) {
                finish();
                return;
            }
            NavigationApplication.instance.getEventEmitter().sendAppLaunchedEvent();
            if (NavigationApplication.instance.clearHostOnActivityDestroy()) {
                overridePendingTransition(0, 0);
                finish();
            }
            return;
        }

        if (ReactDevPermission.shouldAskPermission()) {
            ReactDevPermission.askPermission(this);
            return;
        }

        if (NavigationApplication.instance.isReactContextInitialized()) {
            NavigationApplication.instance.getEventEmitter().sendAppLaunchedEvent();
            return;
        }

        // TODO I'm starting to think this entire flow is incorrect and should be done in Application
        NavigationApplication.instance.startReactContextOnceInBackgroundAndExecuteJS();
    }

    @Override
    protected void onPause() {
        super.onPause();
        isResumed = false;
    }

    private void setSplashLayout() {
        final int splashLayout = getSplashLayout();
        if (splashLayout > 0) {
            setContentView(splashLayout);
        } else {
            setContentView(createSplashLayout());
        }
    }

    /**
     * @return xml layout res id
     */
    @LayoutRes
    public int getSplashLayout() {
        return 0;
    }

    /**
     * @return the layout you would like to show while react's js context loads
     */
    public View createSplashLayout() {
        View view = new View(this);
        view.setBackgroundColor(Color.WHITE);
        return view;
    }
}

MainApplication.java 公共类MainApplication扩展NavigationApplication实现了ReactInstanceHolder {

    @Override
    public boolean clearHostOnActivityDestroy() {
        return false;
    }

    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT_WATCH) {
            // only for KITKAT_WATCH and newer versions
            MultiDex.install(this);
        }
    }

    @Override
    public boolean isDebug() {
        // Make sure you are using BuildConfig from your own application
        return BuildConfig.DEBUG;
    }

    @Override
    public String getJSMainModuleName() {
        return "index";
    }


    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Log.v(TAG, "onConfigChange"+newConfig);
        Intent intent = new Intent("onConfigurationChanged");
        intent.putExtra("newConfig", newConfig);
        this.sendBroadcast(intent);
    }


    // 2. Override the getJSBundleFile method in order to let
    // the CodePush runtime determine where to get the JS
    // bundle location from on each app start
    @Override
    public String getJSBundleFile() {
        return CodePush.getJSBundleFile();
    }

    @NonNull
    @Override
    public List<ReactPackage> createAdditionalReactPackages() {
        return Arrays.<ReactPackage>asList(
            new LinearGradientPackage(),
            new OrientationPackage(),
            new VectorIconsPackage(),
            new KeychainPackage(),
            new BackgroundTimerPackage(),
            new RNI18nPackage(),
            BugsnagReactNative.getPackage(),
            new BlurViewPackage(),
            new PickerViewPackage(),
            new ImagePickerPackage(),
            new RNFetchBlobPackage(),
            new MapsPackage(),
            new FIRMessagingPackage(),
            new RNAmplitudeSDKPackage(MainApplication.this),
            new RNVersionCheckPackage(),
            new RNCardIOPackage(),
            new AndroidWebViewPackage(),
            new WheelPackage()
        );
    }


    @Override
    public void onCreate() {
        super.onCreate();
        setActivityCallbacks(new ActivityCallbacks() {
            @Override
            public void onActivityCreated(Activity activity, Bundle savedInstanceState) {

            }

            @Override
            public void onActivityStarted(Activity activity) {

            }

            @Override
            public void onActivityResumed(Activity activity) {

            }

            @Override
            public void onActivityPaused(Activity activity) {

            }

            @Override
            public void onActivityStopped(Activity activity) {

            }

            @Override
            public void onActivityResult(int requestCode, int resultCode, Intent data) {

            }

            @Override
            public void onActivityDestroyed(Activity activity) {

            }
//            @Override
//            public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
//                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
//            }

        });
    }

    @Override
    public ReactInstanceManager getReactInstanceManager() {
        return getReactNativeHost().getReactInstanceManager();
    }
}

任何提示都将不胜感激，谢谢！

Answer 1

android系统查看第一个标签的清单：

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

将MainActivity设置为使用此标记而不是SplashActivity。

首先启动MainActivity，然后在MainActivity onCreate中对Intent执行任何检查。

    //replace getStringExtra with whatever you use to identify deeplink.
Boolean isDeepLink= getIntent().getStringExtra("").startsWith("mydeeplink://");

if(!isDeepLink)
    {
        Intent splashIntent=new Intent(this, SplashActivity.class);
        startActivity(splashIntent);
    }

Answer 2

找到导致问题的原因。

MainApplication.java实际上是这行代码：

public boolean clearHostOnActivityDestroy() {
    return false;
}

当我将该值更改为 true 时，一切都按照预期的方式开始工作。

这是我的导航库导致的问题：https://github.com/wix/react-native-navigation

Answer 3

例如：您的网址将类似于 https://example.com ，并且您在Android Manifest中有意图过滤器，如下所示：

<activity
    android:name="com.droid.MainActivity"
    android:label="@string/app_name" >

    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data
            android:host="example.com"
            android:scheme="https" />
    </intent-filter>
</activity>

使用网址映射编辑器轻松地将URL意图过滤器添加到您的Android应用链接活动（Android Studio＆gt;工具＆gt; Android应用链接）。

深层链接启动Splash Activity而不是Main Activity

3 个答案: