React-native Android - Get The Variables From Intent

I'm using intent to start my React-Native app, and I'm trying to find out how to get the variables I put on my intent in the react native code. Is this possible from within react-n

Solution 1:

Try this to get Intent params at react-native app.

In my native App, I use this code:

IntentlaunchIntent= getPackageManager().getLaunchIntentForPackage("com.my.react.app.package");
launchIntent.putExtra("test", "12331");
startActivity(launchIntent);

In react-native project, my MainActivity.java

publicclassMainActivityextendsReactActivity {

@Overrideprotected String getMainComponentName() {
    return"FV";
}

publicstaticclassTestActivityDelegateextendsReactActivityDelegate {
    privatestaticfinalStringTEST="test";
    privateBundlemInitialProps=null;
    privatefinal@Nullable
    Activity mActivity;

    publicTestActivityDelegate(Activity activity, String mainComponentName) {
        super(activity, mainComponentName);
        this.mActivity = activity;
    }

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        Bundlebundle= mActivity.getIntent().getExtras();
        if (bundle != null && bundle.containsKey(TEST)) {
            mInitialProps = newBundle();
            mInitialProps.putString(TEST, bundle.getString(TEST));
        }
        super.onCreate(savedInstanceState);
    }

    @Overrideprotected Bundle getLaunchOptions() {
        return mInitialProps;
    }
}

@Overrideprotected ReactActivityDelegate createReactActivityDelegate() {
    returnnewTestActivityDelegate(this, getMainComponentName());
  }
}

In my first Container I get the param in this.props

exportdefaultclassAppextendsComponent {

    render() {
        console.log('App props', this.props);

        //...
    }
}

The complete example I found here: http://cmichel.io/how-to-set-initial-props-in-react-native/

Solution 2:

You can pass initial props as a bundle to the third parameter in the startReactApplication method, like so:

BundleinitialProps=newBundle();
initialProps.putString("alarm", true);

mReactRootView.startReactApplication( mReactInstanceManager, "HelloWorld", initialProps );

See this answer for more details: https://stackoverflow.com/a/34226172/293280

Solution 3:

I think this more correct way based on answer of @Eduardo Junior

classMainDelegate(activity: ReactActivity, mainComponentName: String?) :
    ReactActivityDelegate(activity, mainComponentName) {

    privatevar params: Bundle? = nulloverridefunonCreate(savedInstanceState: Bundle?) {
        params = plainActivity.intent.extras
        super.onCreate(savedInstanceState)
    }

    overridefunonNewIntent(intent: Intent?): Boolean {
        params = intent?.extras
        returnsuper.onNewIntent(intent)
    }

    overridefungetLaunchOptions() = params
}

classMainActivity : ReactActivity() {

    /**
     * Returns the name of the main component registered from JavaScript. This is used to schedule
     * rendering of the component.
     */overridefungetMainComponentName() = "example"overridefuncreateReactActivityDelegate(): ReactActivityDelegate {
        return MainDelegate(this, mainComponentName)
    }
}