How to await for the response of Alert dialog in React Native?

Use react-native-alert-async

I've just published a package that does exactly this and permit to await for the choice of the user. It is compatible with Expo.

 import AlertAsync from "react-native-alert-async";


 const myAction = async () => {

   const choice = await AlertAsync(
     'Title',
     'Message',
     [
       {text: 'Yes', onPress: () => 'yes'},
       {text: 'No', onPress: () => Promise.resolve('no')},
     ],
     {
       cancelable: true,
       onDismiss: () => 'no',
     },
   );


   if (choice === 'yes') {
     doSomething();
   }
   else {
     doSomethingElse();
   }

 }

Original answer: I've made a PR to ReactNative for this feature: https://github.com/facebook/react-native/pull/20312

React-native Alert doesn't stop the execution of code below it. By changing it to async function which resolves the promise on user action will work as ASYNC-Alert.

const AsyncAlert = async () => new Promise((resolve) => {
  Alert.alert(
    'info',
    'Message',
    [
      {
        text: 'ok',
        onPress: () => {
          resolve('YES');
        },
      },
    ],
    { cancelable: false },
  );
});

await AsyncAlert();