Prevent sharing actions from creating new instances of the App

[gcstr]

On Android, when any other application uses the system share menu to open and send data to the Application, a new instance is created.

A common way to prevent it would be just forcing singleInstance or singleTask in AndroidManifest.xml:

<activity
...
android:launchMode="singleInstance"
...>
</activity>

But when this is set the following error is thrown:

Attempt to invoke virtual method 'android.content.Intent android.app.Activity.getIntent()' on a null object reference
getSharedText
    ShareMenuModule.java:35
invoke
    Method.java
invoke
    JavaMethodWrapper.java:374
invoke
    JavaModuleWrapper.java:162
run
    NativeRunnable.java
handleCallback
    Handler.java:751
dispatchMessage
    Handler.java:95
dispatchMessage
    MessageQueueThreadHandler.java:31
loop
    Looper.java:154
run
    MessageQueueThreadImpl.java:194
run
    Thread.java:761

[kornfleks]

Add to your app android manifest:
android:documentLaunchMode="never"

For receiving data when app is open you need to add an Event Emitter to the module.

[shekharskamble]

@caiosba did you manage to work on this issue? any resolution?

[caiosba]

I didn't look at it deeply again yet, but when I do, I will take a look at those two commits: pedroordep@156ab35 and Minds@64bb761... you can look at them too :)

[abnerfs]

Add to your app android manifest:
android:documentLaunchMode="never"

For receiving data when app is open you need to add an Event Emitter to the module.

That worked for me, thanks

[caiosba]

Thanks all, I updated the README.