Firebase for Play Services below 9 - android

The Background
My app is heavily dependent on Firebase. I use most of the services like Authentication, Realtime database, Storage, Analytics, Crash Reporting and more.
Everything works fine so far, but I have a doubt regarding a particular scenario.
The Problem
As Firebase was introduced in Play Services 9, what will happen to those devices who have still not updated to Play Services 9.
How will my app work on those devices as my app is heavily dependent on Firebase?
How does Firebase cater to the scenario of backporting?
Or should the developers some how check the version of Play Services and request the user to update?

How will my app work on those devices as my app is heavily dependent on Firebase?
When installing the application, it will prompt them a message saying that this app requires a higher version of Play Services. So it will work properly.
How does Firebase cater to the scenario of backporting?
Firebase needs a minimum API of 9. If the device doesn't support anything that's missing from the device, it will simply tell them, so you don't have to worry.
Or should the developers some how check the version of Play Services and request the user to update?
NO, Android does this for you.

i have edited my answer to make things a bit more clear
1. How will my app work on those devices as my app is heavily dependent on Firebase?
Android automatically checks for the play services version that is currently installed in the user's device and prompts the user to update to the play services version that the application was built with Firebase.
2. How does Firebase cater to the scenario of backporting?
Firebase explicitly outlines the latest version of play services as a prerequisite for building with it, there is no information on the docs about back porting so I don't think it is possible at the moment.
3. Or should the developers some how check the version of Play Services and request the user to update?
I wouldn't recommend this as Android already checks and pops up a play services error. However it is quite possible to check the version of play services and request the user to first update it in order to use your application, more info on this can be found on this link isGooglePlayServicesAvailable(Context)

Related

android : The minimum google play service version for mobile vision ocr?

I am developing an application and using Mobile Vision Api for text recognizing.I noticed that its not working in some devices.After searched I understand that one reason is because of google play service version that is installed on user device.So I know that I can get the version that is installed on user device like this :
int v = getPackageManager().getPackageInfo("com.google.android.gms", 0 ).versionCode;
but what is the minimum version that i have to check on user device to notice to the user to update the google play service on device(if necessary)?
I think this question is related to your post here.
There seems to be no minimum GPS version specified from the Overview of Google Play Services however it is recommended you update to the lastest as:
Google Play services gives you the freedom to use the newest APIs for
popular Google services without worrying about device support. Updates
to Google Play services are distributed automatically by the Google
Play Store and new versions of the client library are delivered
through the Android SDK Manager. This makes it easy for you to focus
on what's important: your users' experience.

What is minimum version of Google Play Services to use Firebase?

Background
I'm developing an app using Firebase features (Realtime Database, Firebase Messaging, Analytics, Crash Reporting and Auth [Facebook]). In my country, most of the users don't have wifi and rarely upgrade apps (including Google Play Services).
Question
As the title suggests, I would like to know the minimum version (the lowest). I'm also willing to remove some features if it will help to lower the Google Play Services version.
Do I need to check google play service version in my application code or will Firebase check for me?
Finding so far and I'm confused,
This post say min version is 9.0
This post say min version is 8.1.15
This SO question say developer no need to check Google Play Services
but, This doc say developer need to check Google Play Services
The most trustworthy site says 9.0
For a list of the libraries available for the different Firebase features, see Firebase libraries. The following features are now part of Firebase in the Google Play Services 9.0 SDK.
The current stable is 9.4.
https://firebase.google.com/support/releases

Getting app version from Google Play programmatically using javascript

I am developing a PhoneGap app, and I need to query Google Play for the app version to inform users that they can upgrade (if their version is not the latest one). I need to perform this query from javascript. I read many threads on this topic, and I didn't find a "yes" answer. All the answers are "no". This doesn't make sense to me because informing users about a new version is basic functionality (even the Apple Store has REST services to retrieve app metadata). Could someone let me know if this kind of service exists in Google Play?

Do you really need to check for Google Play services to use AdMob?

Google's instructions here say that if you want to use AdMob in your Android app via Google Play services you must ensure the user's device has the Google Play services APK installed. However, I'm having terrible trouble trying to get this working; and I've noticed that even if I uninstall the Google Play services updates on my phone (and don't bother checking if the services is available) my app is still perfectly able to retrieve and display ads! This is despite errors in LogCat like the following:
W/GooglePlayServicesUtil(26558): Google Play services out of date. Requires 4132500 but found 3159130
Presumably my phone still has the original version of Google Play services installed when it came out the factory. I'm just wondering whether I really need to check for Google Play services being available to use AdMob successfully. Right now it appears not. Please can someone tell me why I should bother having to make this check. Is it to handle case 4 at that Google link I gave above...?
The Google Play services APK is missing or disabled on the device, which might happen if the user explicitly uninstalls or disables it.
TL;DR - You do NOT need to check for Google Play services to use the Mobile Ads APIs.
The Google Mobile Ads offering in Google Play services is unique from most (all?) of the other libraries in Google Play services in that it CAN work without the service APK installed on the device.
If the APK installed on the device is a more recent version, the library will load the classes from the APK service and use these newer classes to request ads. Otherwise, the version of Google Play services that you compile in your app is sufficient to fetch ads.
The benefit here is that you effectively will always run against the latest version of the library when the device has the service installed. And in the case that your service version is older than the version you compiled your app against (ex: your example above) or in the case where there is no service on the device (ex: Kindle Fire), the library compiled with your app can still do the ad fetching, but you'll still have to pull in updates manually.
The logcat error you are getting is for either case 2 or 3.
Whether Admob craps out on case 4 is interesting. I suspect it will be ok because the old Admob classes ship with the GPS library so in worse case it could fall back to using their pathway.

Android: GCM without Google Account?

We're building an app that relies on Google Cloud Messaging to recieve data. The app will be installed on several tablets, that each should collect different data from our server. When trying the register our test tablet with our GCM server-side, we get the error "Google Play Services out of date. Requires 3265100 but found 3027105".
We have not attached the device to a Google account, since our understanding was that if you are running 4.0.4 or higher you do not need this. We're running 4.2.2 on an Acer Iconia A1. We really don't want to attach an account to each tablet (could possible be hundreds of them).
How do we update Google Play Services, or do we even need it?
Thanks in advance
If you are using GCM from the google play service library yes you need a google account because google play services gets updated through the play store.
you can however not use google play services and just download the GCM library from the SDK Manager but its not going to get updated anymore so if there are any bugs or anything they wont be fixed. all the new updated will go into the Google Play Services

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