alert not closing react native on ok press

In React Native, the Alert dialog box is dismissed when you press any of the buttons provided in the alert. If your alert is not closing when the ‘OK’ button is pressed, it could be due to a few reasons:

1. Check the onPress function: Ensure that the onPress function for the ‘OK’ button is defined correctly. Here’s an example of how you can define it:

Alert.alert(
  'Alert Title',
  'My Alert Msg',
  [
    {text: 'OK', onPress: () => console.log('OK Pressed')},
  ],
  {cancelable: false},
);

 

In this example, when the ‘OK’ button is pressed, ‘OK Pressed’ is logged to the console1.

1. Check the cancelable property: The cancelable property determines whether the alert can be dismissed by tapping outside of the alert box. If cancelable is set to false, the alert cannot be dismissed by tapping outside of it2. However, this should not affect the dismissal of the alert when the ‘OK’ button is pressed.

2. Check for errors in the onPress function: If there’s an error in the onPress function of the ‘OK’ button, it might prevent the alert from being dismissed. Check the console for any error messages.

If none of the above solutions work, you might want to consider using a custom modal that acts like an alert. This would give you more control over its behavior3.

Link : https://stackoverflow.com/questions/57178279/how-to-close-or-dismiss-alert-box-in-react-native

Thanks

In rare cases, other parts of your code might interfere with the Alert dismissal. Double-check for any code that might prevent the Alert from closing (e.g., setting a global state variable that keeps the Alert open).

• Use console.log statements within your onPress function to verify if the function is being called when you press the OK button.
• Consider using a third-party library like react-native-modal for more advanced modal and alert functionalities if the built-in Alert component doesn't meet your specific needs.

Asynchronous Operations:

If your onPress function performs asynchronous operations (like making an API call), the Alert might appear to remain open until the operation completes. This is because the UI thread is blocked until the operation finishes.

Solution:

• Use Promise.then or async/await to handle the asynchronous operation within the onPress function.
• Close the Alert within the then or await block after the operation is complete.

Alert.alert(
  'Title',
  'Message',
  [
    {
      text: 'OK',
      onPress: async () => {
        const response = await fetch('https://api.example.com/data');
        console.log('Data fetched:', response);
        Alert.alert('Alert Closed'); // Close Alert after operation
      },
    },
  ],
  { cancelable: false },
);

Alert.alert(
  'Title',
  'Message',
  [
    { text: 'OK', onPress: () => console.log('Alert Closed') }, // Add onPress function
  ],
  { cancelable: false }, // Optional: Disable background dismissal (if needed)
);

The Alert component in React Native requires an onPress function within the options object to handle the OK button press. If this function is missing, the Alert will remain open indefinitely.