lolipop | loli pop song player | Audio Utils library

I've created a listView, and since i'm opening one of the item, the application need to fetch all image of the application, but it's doesn't work, i can't figure it out why that's showing me this error. Thank you for helping !

That's my model on Firebase :

imageSection.java

I have seen all around stackoverflow to use

I have some trouble about android studio. if anybody know this program, please read description of my problem. I created empty activity project android 5.0(lolipop) and just click run by emulator. I already tried different kind of devices, but the error is the same. My friends have no problem like that. please tell me what to do.screenshot of emulator error message and photo of log error updated event log after trying reinstall emulator devices

I am trying to change my user prompt bash so that instead of showing up the vowels, it shows the number corresponding to that vowel. So, a -> 1, e -> 2, i -> 3, o -> 4, u -> 5.

So far what I achieved is all the vowels with the same number as you can see below. However I don't know how to do the aforementioned.

I'm learning Android and coming from the dark side of iOS, where everything is stricter handled.

I have read about the differences between min sdk, target sdk and compile sdk. However the following scenario is still not clear to me.

If my min sdk is set to KitKat (19) to allow 98% user base coverage, and my target sdk is set to Android 10+ (30), then I could be compiling with features that are not available on KitKat.

For example Material design is supposed to be supported from Lolipop (21). But how comes I still can add it to my KitKat build.gradle project?

I have a List that contains Maps. I would like to know what the list index of a specific Map is by providing a Map value. In my case, the unique value is for the key "Item ID".

In the example below, how would I find the list index of the map where key 'itemID' == '222'?

I've done an application for my personal use (GPS tracking when trekking, with sending position to another phone, for survey).

It was under Lolipop and working fine.

New phone, under Pie.

Working fine if application is in foreground, but set in pause by Pie when in background.

How to keep it working in background ?

I tried in "Device Care" > "Battery" > "App power management" unchecking "Adaptive battery" or "Put unsued apps to sleep" not work. I put my app in "Apps that won't be put to sleep" but don't work too.

Is there a "simple way" to programmaticaly keep my application active in background ?.

AndroidManifest ? Or same as for screen: getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

My app is based on onLocationChanged(final Location location)

Thanks for help Regards

I am fetching movie details from "https://api.themoviedb.org/" using retrofit. The app works fine on android 5 (Lolipop) but the app crashes on Android 9. Did my research and came to know about the fact that Android pie uses only HTTPS by default. You can clearly see the above URL is encrypted, so, it shouldn't be an issue. Still, I created a Network Security Configuration file and included it inside my AndroidManifest.xml

And its still not working!!

I am sharing the code below ->

MovieClient.java

I am trying to auto-size my TextView to fit in a specific width on one line, it was quite easy for API 26 and above, however, I want to support my app for use with APIs back to Lolipop. I am having a hard time trying to do this with java code. Can anyone help me? Thank you.