https://github.com/rreusser/react-native-android-intent-issue

A repo to demonstrate an issue with out-of-the-box intents in React Native
https://github.com/rreusser/react-native-android-intent-issue

Last synced: 7 days ago
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A repo to demonstrate an issue with out-of-the-box intents in React Native

• Host: GitHub
• URL: https://github.com/rreusser/react-native-android-intent-issue
• Owner: rreusser
• Created: 2016-04-20T00:59:17.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-04-21T18:24:13.000Z (over 8 years ago)
• Last Synced: 2024-10-26T12:18:09.205Z (2 months ago)
• Language: Objective-C
• Size: 4.13 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# android-intent-issue

See: https://github.com/facebook/react-native/issues/7079

This repo illustrates an issue with out-of-the-box deep linking in React Native for Android. Each deep link creates a new activity. The [Android `` docs](http://developer.android.com/guide/topics/manifest/activity-element.html) indicate that default "`standard`" behavior is:

> The system always creates a new instance of the activity in the target task and routes the intent to it.

The solution is to add `launchMode` to the main activity definition:

```xml

     The system creates the activity at the root of a new task and routes the intent to it. However, if an instance of the activity already exists, the system routes the intent to existing instance through a call to its onNewIntent() method, rather than creating a new one.

This approach fixes the issue but requires additional hookup to route the [`onNewIntent`](http://developer.android.com/reference/android/app/Activity.html#onNewIntent(android.content.Intent)) event through `RCTDeviceEventEmitter` in a manner that completes the missing implementation of [`Linking.addEventListener`](http://facebook.github.io/react-native/docs/linking.html#addeventlistener) for React Native.

## To reproduce

1. Open the app

2. Click the button to illustrate changed state

3. Open a deep link via `npm run link` or

  ```

  adb shell am start -a android.intent.action.VIEW -d 'androidintentissue://testtest' com.androidintentissue

  ```

4. Click the hardware back button and verify that the original instance of the activity is exposed.

![Example](./example.gif)