Android Question Check android version before app initialize?

H

Hamied Abou Hulaikah

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Hi, How to Check android version before app initialize and crash in old android versions?
 
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npsonic

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Check minSdkVersion and targetSdkVersion from manifest.

Project > Manifest Editor
Row 5: <uses-sdk android:minSdkVersion="5" android:targetSdkVersion="19"/>
 
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DonManfred

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- NO NEED to write everything in bold!

Connect your device with usb and usb-debugging enabled and post the log. Maybe the unfiltered log from logcat.

In fact there IS a log. Without positing it it is hard to give any advices.

I don´t plan to give any more answer here
 
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npsonic

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I don't understand why you can't just modify minSdkVersion.
If your app doesn't work with the older sdks you should set it correctly from manifest.
 
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KMatle

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The question was how to check the version at runtime. However. Please use the search function how to use the phone library or search for "p.sdkversion" to see examples.

If errors occur, we need to see the exception message (via logs). And yes... There are always messages in the logs. Get used to check those messages to know what went wrong. If you get online with your app, you get exactly those messages from Google. So no magic here.
 
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ivan.tellez

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HAH said:
I want to check before app started
Click to expand...

Without starting your app, borrow the phone, go to settings, About the phone, Software info, And check the Android Version. Or somehow ask the user to do it.


After the app is launched, you have the aswer in poast #4. Yo can put that in the starter service. But KMatle is right, if you dont know what is the error or what causes, there is no point on ksnowinf the android version.
 
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Hamied Abou Hulaikah

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Today i got old android version phone, the debug log is:
B4X: 
** Service (firebasemessaging) Start **
Error occurred on line: 27 (FirebaseMessaging)
java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.android.gms.tasks.Task com.google.firebase.iid.FirebaseInstanceId.zza(java.lang.String)' on a null object reference
    at com.google.firebase.messaging.FirebaseMessaging.subscribeToTopic(Unknown Source)
    at anywheresoftware.b4a.objects.FirebaseNotificationsService$FirebaseMessageWrapper.SubscribeToTopic(FirebaseNotificationsService.java:130)
    at com.yemenet.aloo.firebasemessaging._subscribetotopics(firebasemessaging.java:210)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:735)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:357)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:260)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
    at anywheresoftware.b4a.BA$2.run(BA.java:365)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5912)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)
 
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npsonic

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HAH said:
This is what i need .. How to do check version compatibility in manifest?
Click to expand...
Check my first answer. You have to set higher min sdk value. There is no other way.
 
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