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    Android Dev - Weekly Questions Thread - September 21, 2021

    September 21, 2021

    Android Dev - Weekly Questions Thread - September 21, 2021

    Weekly Questions Thread - September 21, 2021

    Posted: 21 Sep 2021 06:00 AM PDT

    This thread is for simple questions that don't warrant their own thread (although we suggest checking the sidebar, the wiki, our Discord, or Stack Overflow before posting). Examples of questions:

    • How do I pass data between my Activities?
    • Does anyone have a link to the source for the AOSP messaging app?
    • Is it possible to programmatically change the color of the status bar without targeting API 21?

    Large code snippets don't read well on reddit and take up a lot of space, so please don't paste them in your comments. Consider linking Gists instead.

    Have a question about the subreddit or otherwise for /r/androiddev mods? We welcome your mod mail!

    Also, please don't link to Play Store pages or ask for feedback on this thread. Save those for the App Feedback threads we host on Saturdays.

    Looking for all the Questions threads? Want an easy way to locate this week's thread? Click this link!

    submitted by /u/AutoModerator
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    Losing users.

    Posted: 21 Sep 2021 07:20 AM PDT

    Is it a normal occurence to have users download your app and uninstall it within the same day.

    I've just launched my app on playstore, I haven't begun to promote it yet and I'm losing users. The app is fine.

    submitted by /u/vrevdude
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    Do you think LiveData will ever be deprecated in the next 5 years?

    Posted: 21 Sep 2021 05:12 AM PDT

    I just hope Google actually says something about this

    View Poll

    submitted by /u/VincentJoshuaET
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    Release Kotlin 1.5.31 · JetBrains/kotlin

    Posted: 20 Sep 2021 05:27 PM PDT

    Android Wallet Cards Manager - Creating a sliding card wallet layout for Android

    Posted: 21 Sep 2021 12:41 AM PDT

    Android Wallet Cards Manager - Creating a sliding card wallet layout for Android

    Hi everyone, my new article on Medium is out!

    You find the full code on GitHub.

    ​

    https://reddit.com/link/pse209/video/5f2uyhby8to71/player

    submitted by /u/spel98
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    looking for some advice about creating an app.

    Posted: 21 Sep 2021 05:00 AM PDT

    i work construction as a pipelayer. i built mysely a script from tkinter to help figure multiple pipegrades at 1 time. then built another to help with manhole depths and so on. i use pydrlid and they run flawless. well i was told you can convert kivy scripts into a apk, well only thing i get is a black screen so that never works for whatever reason. where would i even begin to write my own app??

    i dont need anything special. its not going in the playstore or anything its just for personal use. i just need a few labels, textbox, and a few buttons. i watch youtube videos on it i just want to hear from people here on what they think is the most simple way to do this.

    submitted by /u/Mikeydernul
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    I am newly in Android programming , i know Java not very good but at least. I want some your advices which chapters i should cover . Maybe some tips for Junior , please i will glad to any answers!

    Posted: 21 Sep 2021 06:29 AM PDT

    Exiting android emulator crashes my linux machine.

    Posted: 20 Sep 2021 03:06 PM PDT

    Inconsistent(which is the most annoying part) crashing when exiting an emulator in android studio.

    I checked ram and disk space, both are acceptable.

    I am really lost on this one I even tried reinstalling android studio but no indication or anything on what's causing it.

    any help is welcomed, if more details needed please ask :)

    submitted by /u/the_pupilwx
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    Hospital Management system (Android App)

    Posted: 21 Sep 2021 12:49 AM PDT

    Learn how to make a complete hospital management system with android studio and firebase step by step. The app allows registration of patients and doctors, appointment bookings, admin module to manage the users and many more. Click the link to join the community.

    https://www.youtube.com/watch?v=-Qua3j8mJyQ&list=PLlkSO32XQLGr8EYXYOYAjO-c0OmPIk-lc

    submitted by /u/willteksoftwares
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    Kotlin android development tutorial for web developers

    Posted: 20 Sep 2021 03:57 PM PDT

    Hey

    I'm a web developer, working mainly with TS, React and NodeJS.

    Is there any tutorial for somebody like me? Not explaining basic of programing (i.e loops, conditions)

    submitted by /u/fiveMop
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    How can I secure my source code from resale or publish free?

    Posted: 20 Sep 2021 11:32 PM PDT

    I'm literally spent 9 months building an android app, There are at least 45 files of Web ( API ) and 173 files of Java language, This project is ready to sell but I'm looking for any way to secure my source code from resale or publish it as free.

    ​

    Let's supposed a specific company bought this product how can I guarantee this company will not resale it to their customers or publish it as free on the internet?

    ​

    I built stupid apps in the past and it's published now on the internet.

    ​

    Any suggestion?

    submitted by /u/DismalCall5534
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    Android 11 Send user directly to the Location Permission screen

    Posted: 20 Sep 2021 12:30 PM PDT

    In Android 11 after you've requested foreground permissions this line will send the user to the Location permission screen of your app
    ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_BACKGROUND_LOCATION), PERMISSION_REQUEST_BACKGROUND_LOCATION)

    But if the user does not interact with that screen and just presses back, then executing that code seems to do nothing.

    Does anyone know of a better way to direct a user to this specific screen that isn't bugged? Or if there is a work around to this issue?

    submitted by /u/CoreyAFraser
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    widget help

    Posted: 20 Sep 2021 08:58 PM PDT

    Hey everyone! So i've been studying android studio for a bit of time now and how to make widgets for a home screen, which led me to consider the limitations of what widgets can do. Is it possible to run another program from a widget? for example: if i have a small project from Unity (game engine), is there such thing as running the Unity project from a widget? Or anything close to that scale?

    submitted by /u/Xale77
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    Mobile Apps validation approach

    Posted: 20 Sep 2021 02:47 PM PDT

    Calling out suggestions from Mobile App development leads...Once your team develops a bunch of features and you are ready to release them. What is your approach to catch the bugs mainly run time errors, app crashing early on before the app goes out to production? Along with a few physical devices testing- Do you use something like AWS Device Farm? Any insights into this will be highly appreciated. Thank you in advance.

    submitted by /u/Mobi_craze
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    My account was suspended

    Posted: 21 Sep 2021 01:52 AM PDT

    First time app: licensing your terms of use/servive/copyright?

    Posted: 20 Sep 2021 09:35 AM PDT

    Hello!! I was wondering for publishing apps in the Google play store, how could you add a license to protect your app for copyright/terms of use? Is this necessary, or are all apps under Googles license? Or for example if you collect user data, a privacy policy?

    I'm just wondering if these things are needed or standard in a Google play store.

    submitted by /u/fluffy_baby_alpaca
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