How to disable landscape mode in React Native Android dev mode?

Question

I am new to android environment. I know iOS can be done in Xcode to disable device orientation. How can I disable landscape mode or any orientation mode in React Native Android?

Answer 1

You can simply the logic by adding a lifecycle callback in ReactApplication class:

public class MyApplication extends Application{

@Override
    public void onCreate() {
        super.onCreate();  

  registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
            @Override
            public void onActivityCreated(Activity activity, Bundle bundle) {
                // Here we specify to force portrait at each start of any Activity
                activity.setRequestedOrientation(
                        ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

            }

            @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 onActivitySaveInstanceState(Activity activity, Bundle bundle) {

            }

            @Override
            public void onActivityDestroyed(Activity activity) {

            }
        });
}

So you don't need to configure AndroidManifest