如何使用React Native从Android的SplashScreen中删除淡出效果？

在我的第一个react本机界面出现在屏幕上之前，我一直在努力消除淡出效果，但是，直到现在，我还不明白

我尝试使用本教程：，但不起作用

我也尝试过添加SplashActivity，但它不起作用

这是我的主要活动

package com.cv;
import android.os.Bundle;
import com.facebook.react.ReactActivity;
import org.devio.rn.splashscreen.SplashScreen;

public class MainActivity extends ReactActivity {

    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "CV";
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SplashScreen.show(this, false);  // here
    }
}

主要应用

package com.cv;

import android.app.Application;

import com.facebook.react.ReactApplication;
import org.devio.rn.splashscreen.SplashScreenReactPackage;
import com.oblador.vectoricons.VectorIconsPackage;
import com.horcrux.svg.SvgPackage;
import com.github.wuxudong.rncharts.MPAndroidChartPackage;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;

import java.util.Arrays;
import java.util.List;

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
    @Override
    public boolean getUseDeveloperSupport() {
      return BuildConfig.DEBUG;
    }

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
            new SplashScreenReactPackage(),
            new VectorIconsPackage(),
            new SvgPackage(),
            new MPAndroidChartPackage()
      );
    }

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

  @Override
  public ReactNativeHost getReactNativeHost() {
    return mReactNativeHost;
  }

  @Override
  public void onCreate() {
    super.onCreate();
    SoLoader.init(this, /* native exopackage */ false);
  }
}

包名在build.gradle（应用程序内部）、清单和类文件中是正确的

我一直在使用此命令执行应用程序：

react-native run-android

及

输出为：

BUILD SUCCESSFUL in 37s
108 actionable tasks: 40 executed, 68 up-to-date
Running /Users/xxxxxxx/Library/Android/sdk//platform-tools/adb -s CB5A1Z9N9S reverse tcp:8081 tcp:8081
Starting the app on CB5A1Z9N9S (/Users/xxxxxxx/Library/Android/sdk//platform-tools/adb -s CB5A1Z9N9S shell am start -n com.cv/com.cv.SplashActivity)...
Starting: Intent { cmp=com.cv/.SplashActivity }

但是，当应用程序打开时，显示飞溅，然后突然关闭，但在Logcat中我得到：

08-26 00:17:03.414 27240-27240/? I/art: Late-enabling -Xcheck:jni
08-26 00:17:03.479 27240-27240/com.cv W/ResourceType: Found multiple library tables, ignoring...
08-26 00:17:03.549 27240-27240/com.cv W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-26 00:17:03.569 27240-27240/com.cv I/Timeline: Timeline: Activity_launch_request id:com.cv time:38049157
08-26 00:17:03.613 27240-27240/com.cv D/AndroidRuntime: Shutting down VM
08-26 00:17:03.615 27240-27240/com.cv E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.cv, PID: 27240
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cv/com.cv.MainActivity}: java.lang.ClassCastException: android.app.Application cannot be cast to com.facebook.react.ReactApplication
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
        at android.app.ActivityThread.access$800(ActivityThread.java:156)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:211)
        at android.app.ActivityThread.main(ActivityThread.java:5389)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
     Caused by: java.lang.ClassCastException: android.app.Application cannot be cast to com.facebook.react.ReactApplication
        at com.facebook.react.ReactActivityDelegate.getReactNativeHost(ReactActivityDelegate.java:71)
        at com.facebook.react.ReactActivityDelegate.loadApp(ReactActivityDelegate.java:91)
        at com.facebook.react.ReactActivityDelegate.onCreate(ReactActivityDelegate.java:80)
        at com.facebook.react.ReactActivity.onCreate(ReactActivity.java:52)
        at com.cv.MainActivity.onCreate(MainActivity.java:20)
        at android.app.Activity.performCreate(Activity.java:5990)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442) 
        at android.app.ActivityThread.access$800(ActivityThread.java:156) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:211) 
        at android.app.ActivityThread.main(ActivityThread.java:5389) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at java.lang.reflect.Method.invoke(Method.java:372) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815) 
08-26 00:17:07.542 27240-27240/? I/Process: Sending signal. PID: 27240 SIG: 9

现在我不知道该怎么办。有什么想法吗？。谢谢

我的应用程序依赖项：

"native-base": "^2.7.2",
"react": "16.4.1",
"react-native": "0.56.0",
"react-native-animate-number": "^0.1.2",
"react-native-charts-wrapper": "^0.4.3",
"react-native-splash-screen": "^3.1.1",
"react-native-svg": "^6.5.1",
"react-native-timeline-listview": "^0.2.3",
"react-native-timer": "^1.3.4",
"react-native-vector-icons": "^5.0.0",
"victory-native": "^30.1.0"

节点：8.11.2 净现值：6.1.0 操作系统：MacOSSierra

---

Android Studio:3.1.3

我也尝试过，但AndroidStudio仅显示MainActivity和SplashActivity，尽管MainApplication位于同一目录中。我认为这是关键，但不可能添加它

BUILD SUCCESSFUL in 37s
108 actionable tasks: 40 executed, 68 up-to-date
Running /Users/xxxxxxx/Library/Android/sdk//platform-tools/adb -s CB5A1Z9N9S reverse tcp:8081 tcp:8081
Starting the app on CB5A1Z9N9S (/Users/xxxxxxx/Library/Android/sdk//platform-tools/adb -s CB5A1Z9N9S shell am start -n com.cv/com.cv.SplashActivity)...
Starting: Intent { cmp=com.cv/.SplashActivity }

08-26 00:17:03.414 27240-27240/? I/art: Late-enabling -Xcheck:jni
08-26 00:17:03.479 27240-27240/com.cv W/ResourceType: Found multiple library tables, ignoring...
08-26 00:17:03.549 27240-27240/com.cv W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-26 00:17:03.569 27240-27240/com.cv I/Timeline: Timeline: Activity_launch_request id:com.cv time:38049157
08-26 00:17:03.613 27240-27240/com.cv D/AndroidRuntime: Shutting down VM
08-26 00:17:03.615 27240-27240/com.cv E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.cv, PID: 27240
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cv/com.cv.MainActivity}: java.lang.ClassCastException: android.app.Application cannot be cast to com.facebook.react.ReactApplication
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
        at android.app.ActivityThread.access$800(ActivityThread.java:156)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:211)
        at android.app.ActivityThread.main(ActivityThread.java:5389)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
     Caused by: java.lang.ClassCastException: android.app.Application cannot be cast to com.facebook.react.ReactApplication
        at com.facebook.react.ReactActivityDelegate.getReactNativeHost(ReactActivityDelegate.java:71)
        at com.facebook.react.ReactActivityDelegate.loadApp(ReactActivityDelegate.java:91)
        at com.facebook.react.ReactActivityDelegate.onCreate(ReactActivityDelegate.java:80)
        at com.facebook.react.ReactActivity.onCreate(ReactActivity.java:52)
        at com.cv.MainActivity.onCreate(MainActivity.java:20)
        at android.app.Activity.performCreate(Activity.java:5990)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442) 
        at android.app.ActivityThread.access$800(ActivityThread.java:156) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:211) 
        at android.app.ActivityThread.main(ActivityThread.java:5389) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at java.lang.reflect.Method.invoke(Method.java:372) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815) 
08-26 00:17:07.542 27240-27240/? I/Process: Sending signal. PID: 27240 SIG: 9

"native-base": "^2.7.2",
"react": "16.4.1",
"react-native": "0.56.0",
"react-native-animate-number": "^0.1.2",
"react-native-charts-wrapper": "^0.4.3",
"react-native-splash-screen": "^3.1.1",
"react-native-svg": "^6.5.1",
"react-native-timeline-listview": "^0.2.3",
"react-native-timer": "^1.3.4",
"react-native-vector-icons": "^5.0.0",
"victory-native": "^30.1.0"