I have done java for 6 months but when i try to go through the firebase android documentation on my own I don't understand it .I cant use the documentation on my own. please tell me what I should do to properly understand it thanks.
The documentation is one of the most clear ones i ever seen, it is detailed and organized, but you can also check the codeLab
Related
I'm facing an issue where when I sign out a user (using FirebaseAuth.signOut() method) and sign in with another user, information of the previous user are loaded instead of the new one.
I believe this is caused by this information still being accessible in firebase's cache.
Is there a way to force firebase to clear its local cache?
Cheers!
For Android, there is FirebaseFirestore.clearPersistence().
For JavaScript/web, there is Firebase.clearPersistence().
For iOS, there is Firebase.clearPersistence().
Flutter does not seem to have this API yet.
Bear in mind that the clearPersistence API is not meant for the specific case you're talking about. If you read the API docs carefully, you can see they're meant for testing.
You might want to do a little more debugging to figure out what exactly it is that's not working the way you expect. Since you're not showing any code, it's hard to tell if you might be doing something wrong.
You can use the async call FirebaseFirestore.instance.clearPersistence(); for flutter projects.
Check this answer.
If clearPersistence() doesn't work, Programmatically restart your app
you can restart your app like this: https://stackoverflow.com/a/50116077/10041654
in addition, while restarting init your firebase: https://github.com/The-ring-io/flutter_phoenix/issues/27#issue-1490150037
At the moment I am using react-native-firebase 4.3.8, but I noticed that google has updated firebase (firestore in particular), which holds some interesting new features. I was trying to use firebase from google directly, but it gives me errors (can't find variable: document) for example.
Is it possible to use firebase instead of react-native-firebase, so the updated features are available.
I know that react-native-firebase are working on an update (v5) to include those features.
To use Firebase within your React Native application you need to bind the JavaScript code to the underlying native iOS/Android SDK. When you use Invertase's react-native-firebase library they take care of that for you.
You can definitely use another library that does the same, or roll your own. But recommending a library is off-topic on Stack Overflow, and showing you how to do this yourself is a bit too broad for a question here.
If you're having problems getting the Invertase library to work, it is best if you share the minimal code that reproduces where you are stuck. That way we can see what you tried, and help you get unstuck.
If none of these apply, you will have to wait until the feature you want it available in the library. Note that Invertase's react-native-firebase library is open source, so they might be taking pull requests in case you want to help.
How to send notification to user on data changes in database using firebase ?
I am newbie and searched everywhere no such help.. please help me.
I got to know that it's possible using firebase cloud function but I did not got any example code to understand it. So please help by giving any example code.
Have a look at the first use-case mentioned in the Firebase documentation and the sample code for that use-case. They quite literally describe what you're asking for.
Note that this code is non-trivial, since the entire use-case is quite involved. You will have to make sure you understand all parts well, before you try to make any changes to the sample code. To get this understanding, you might be better served by following the more basic documentation for the Realtime Database and Cloud Messaging, and the codelab for iOS, Android, and/or Web.
hi I read some msdn tutorial on Xamarin form but there is no mention of PlugIn. I am a bit confused as to which one to use. Dependency service is used to call the platform Specific Api such as TextToSpeech in iOS and Android. But there are Plugin for Camera, Toast, Location and others. It seems this approach is better.
I need some confirmation and understanding to clear this confusion.
1.Is PlugIn an alternative to Dependency service?
for Example , I dont have to use Dependency service for location in iOS and Android if there is a Location-Plugin for Xamarin.forms.
your confirmation will help me on this matter.
Thanks
The DependencyService is a method that is built into the Xamarin.Forms library to provide you with a way to implement platform-specific code. More information can be found in the documentation: https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/dependency-service/
The plugins, now bundled as Xamarin.Essentials (but of course there are much more), actually might use this DependencyService or at least work in a very similar way.
There really is not one answer to choose one or the other. If there is a plugin that does what you need and you feel comfortable using it, then do! If you need something different, you might want to write something of your own.
Always have a good look at the state of the code for a plugin: is it actively maintained? Is it built by someone you would trust, etc.
I need to see all rules fired on the page. Earlier I was using "_satellite.Logger.getHistory()" from console to get all rules but it doesn't seem working anymore with Adobe Launch product. Appreciate your help.
https://forums.adobe.com/thread/2473084
thanks,
Raj
No, but an API is available to collect similar information. See https://medium.com/launch-by-adobe/launch-library-monitoring-hooks-8495dd91b57. Note that these APIs are for debugging purposes only; you shouldn't use them in production code.