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    Saturday, February 8, 2020

    Android Dev - App Feedback Thread - February 08, 2020

    Android Dev - App Feedback Thread - February 08, 2020


    App Feedback Thread - February 08, 2020

    Posted: 08 Feb 2020 04:28 AM PST

    This thread is for getting feedback on your own apps.

    Developers:

    • must provide feedback for others
    • must include Play Store, GitHub, or BitBucket link
    • must make top level comment
    • must make effort to respond to questions and feedback from commenters
    • may be open or closed source

    Commenters:

    • must give constructive feedback in replies to top level comments
    • must not include links to other apps

    To cut down on spam, accounts who are too young or do not have enough karma to post will be removed. Please make an effort to contribute to the community before asking for feedback.

    As always, the mod team is only a small group of people, and we rely on the readers to help us maintain this subreddit. Please report any rule breakers. Thank you.

    - Da Mods

    submitted by /u/AutoModerator
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    HTML Admin CMS for Firebase?

    Posted: 08 Feb 2020 03:09 AM PST

    Firebase's own admin layout is pretty much useless and wastes a lot of time so is there any other HTML based admin sites/projects that I can connect my database with and do changes in Firestore? Most data on my Firestore is input from me and it's very hard to create individual nodes again and again since there is a lot of data that I enter.

    submitted by /u/Firebelias
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    Android TV, and interstitial ads.

    Posted: 08 Feb 2020 05:30 AM PST

    I developed a small app for a client, the app contains AdMob interstitial ads.

    the client asked me to develop the same kind of app but for Android TV. from research online I found that AdMob is not officially supported on Android TV yet.

    is there an alternative ad network that will work with Android TV? does anyone here have any experience with such an issue?

    submitted by /u/sillyV
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    I just published an article about ViewBinding on medium. Please check it out.

    Posted: 08 Feb 2020 05:27 AM PST

    "Exploring ViewBinding in depth" by Somesh Kumar https://link.medium.com/Jprz4AjpU3

    submitted by /u/TheSomeshKumar
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    Google limited my Admob account. Whats Problem?

    Posted: 08 Feb 2020 06:05 AM PST

    After one week of showing ad from, Google limited my account. This limitation happened two weeks ago but not fixed yet.

    Which of the reasons below can cause this issue:

    • I've clicked on ads myself for 30+ times in one week.
    • One of the native ads displaying cropped (1:1 ratio) in my App with no title and icon.
    • The Admob Account ID in the current and previous versions of my App is not the same. But the Ad Unit IDs are the same. Let's take an example for more understanding:
      • Older versions of my App registered on my old Admob Account and new releases using a new AdMob account ID. But both new and old versions are serving my new account's Ad Unit (because I can change Ad units dynamically from my server)
    • All of my users are from Iran (the country that is google's restricted list)
    • Because my App does not exist in Google Play, so ad units only serve websites that not engaging my users, and they don't do any action after clicking.
    submitted by /u/henry_2009
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    Help me with my Kotlin Flow hangups

    Posted: 07 Feb 2020 02:46 PM PST

    Or more precisely (but less catchy as a title) my Cold vs Hot sequence hangups.

    First of all, it seems like 3 rather distinct concepts are associated with Hot vs. Cold, maybe because they're not as distinct as I think they are:

    1. Whether the Observable is generating items when no subscriber is listening (Hot), or whether it waits until there is a subscriber before generating items (Cold)
    2. Whether the Observable can be back-pressured (Cold) or not (Hot)
    3. Whether the Observable broadcasts its events to all subscribers (Hot) or whether an Observable generates new items for each subscriber (Cold) -- i.e. whether the Observable is shared.

    I can definitely see how they are related. Perhaps these concepts go together because they just make sense together. Anyway, that's not my question.

    It seems that A LOT of events in mobile app dev (user input, data updates pushed from the back end, etc.) are inherently Hot. You don't have any control over when they happen. You generally want to broadcast/share them. You could try to adopt a back-pressure strategy (e.g. buffer) but you can't back-pressure the event itself.

    Notable exception of course is I/O, e.g. unary network calls, or file I/O. These can be "Single-like" in nature, or maybe you have a paginated network API or you're reading individual lines from a file, which would involve multiple events and is "Flowable-like" in nature. These seem Cold to me.

    I could also imagine having a Presenter in which you've subscribed to Flowable<ViewState> and you request 1 item at a time because there's no sense in processing multiple ViewStates each frame.

    So I see a use for both, but the Kotlin language designers don't seem to be feeling the love for Hot channels. Channels are still experimental, and many of their (seemingly useful!) operators are being deprecated (with instructions to use Flow instead). I definitely understand their limitations, but they seem necessary.

    So my question is, should we be minimizing the use of Hot sequences? Should we be converting them to Cold sequences with some sort of Back-Pressure Strategy as immediately as possible? Should the frame timing of our UI generally be the tick rate at which we calculate new app state, with "Hot" events buffered somehow until the next tick?

    submitted by /u/RageQuitFPS
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    I need help, google play leaderboard won't record scores

    Posted: 08 Feb 2020 12:45 AM PST

    In my game I am able to log into google play and even have the leaderboard pop open, but i can't record scores into the leaderboard. I used this code I found in a tutorial, and it seems to be the only method I can find anywhere:

    public static void AddScoreToLeaderboard(string leaderboardId, long score)

    {

    Social.ReportScore(score, leaderboardId, success => { });

    }

    But it does nothing. It used to work for me a year ago, but since google now requires games to be in 64bit, i had to update everything, and now this code doesn't work for me. I'm guessing maybe google changed it in an update, but I can't find any other code to record to leaderboards. Plz help. Thanks.

    submitted by /u/betamaximus128
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    Critical Bluetooth Vulnerability in Android (CVE-2020-0022)

    Posted: 07 Feb 2020 09:09 AM PST

    How to design the UI in Android with a practice example using RelativeLayout

    Posted: 08 Feb 2020 07:04 AM PST

    View Binding: Merge

    Posted: 07 Feb 2020 08:18 AM PST

    Nitrogen release date

    Posted: 07 Feb 2020 08:47 AM PST

    This is my first post here and I'm fairly new to the subreddit too, tell me if i get anything wrong.

    I can't seem to find any information about google's Project Nitrogen's release date. In I/O 2018 and Android Dev Summit 2018 they said it would be released in 2019, but I didn't find any article about it dated 2019/2020, only 2018.

    Does anybody know anything about it? Has it already been integrated with AndroidStudio and I just didn't notice? It seems unlikely that they abandoned it, but apart from a few reddit comments i couldn't find anything about it.

    Any help is appreciated.

    submitted by /u/killer_kupcake
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    SMS to trigger a relay

    Posted: 07 Feb 2020 05:50 PM PST

    I want to use a cheap android phone and whenever it receives an SMS message it will trigger a relay.

    How would I go about doing this?

    If this is not the subreddit for this then reply the subreddit I should ask.

    submitted by /u/ertza
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    Generate kotlin documentation

    Posted: 07 Feb 2020 08:37 AM PST

    Hi. Long story short I am writing this Kotlin Library for Android, and I would like to generate some documentation to go with it. I tried Dokka, but the output is really.... spartan xD. Can you recommend some other free to use tool, so I can generate simple documentation? Would be lovely if it would include search.
    Thanks!

    submitted by /u/cptKozlov
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    Best tutorial to learn recycler view in Kotlin?

    Posted: 07 Feb 2020 04:21 PM PST

    Hi, I am looking for the most beginner friendly tutorial to learn recyclerview in Kotlin.

    I have watched and coded along with a few such as:

    https://www.youtube.com/watch?v=Jo6Mtq7zkkg

    https://www.youtube.com/watch?v=lLQWJS-WPo4

    but they are not very good in my opinion as they don't explain enough or well enough. It is basically just typing the code out + some really hand waving type arguments.

    For whatever reason it is not clicking for me at all.

    Do you guys have any suggestions of where I can learn better? I am very new to mobile dev and kotlin to be honest but would love to learn this!

    submitted by /u/ikihsin2
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    Help me build my first application :)

    Posted: 07 Feb 2020 05:10 PM PST

    Hello people. I've never built an app before, in fact I dont code either but I'm able to look around and figure things out... As a first project I'd like to build a simple sound player with a twist. So you know the radio from the GTA games? When you enter a vehicle it basically starts playing a random moment from a 2 hour~ish loop. I already know how to make a basic app with buttons that when pressed play a sound. What I would need your help for is to find out how to code something so that when pressed, it starts playing from a random moment from a "song". Note: Once I know how, I'll make a GTA radio player for myself, I already have the audio tracks, I wont publish the app so no worries. Thanks everyone!

    submitted by /u/ShawnDesilets
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    I'm getting a "Cannot recover key" error when generating my signed APK

    Posted: 07 Feb 2020 01:15 PM PST

    I'm getting the below error when generating my signed APK:

     Caused by: java.lang.RuntimeException: com.android.ide.common.signing.KeytoolException: Failed to read key key0 from store "/Users/zorgan/Desktop/keystore": Cannot recover key Caused by: java.security.UnrecoverableKeyException: Cannot recover key at sun.security.provider.KeyProtector.recover(KeyProtector.java:315) at sun.security.provider.JavaKeyStore.engineGetKey(JavaKeyStore.java:141) at sun.security.provider.JavaKeyStore$JKS.engineGetKey(JavaKeyStore.java:56) at java.security.KeyStoreSpi.engineGetEntry(KeyStoreSpi.java:473) at sun.security.provider.KeyStoreDelegator.engineGetEntry(KeyStoreDelegator.java:172) at sun.security.provider.JavaKeyStore$DualFormatJKS.engineGetEntry(JavaKeyStore.java:70) at java.security.KeyStore.getEntry(KeyStore.java:1521) at com.android.ide.common.signing.KeystoreHelper.getCertificateInfo(KeystoreHelper.java:191) ... 32 more 

    I have checked my executionHistory.bin file and confirmed both the Keystore password and Key password are correct and are both the same password:

    https://i.stack.imgur.com/fA75q.png

    signingConfig.keyAliasÖkey0ösigningConfig.keyPasswordí**mypassword**úsigningConfig.storePasswordí**mypassword**òsigningConfig 

    https://i.stack.imgur.com/CVGwy.png

    What could be the problem?

    submitted by /u/GerrardSlippedHahaha
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    No rebuild the app

    Posted: 07 Feb 2020 01:13 PM PST

    I am getting this error when try to rebuild the app

    \res\values\values.xml:57:5-88:25: AAPT: error: resource android:attr/ttcIndex not found.

    Any help I will apreciate

    submitted by /u/Tenchu68
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    How to Localize Indie Games for Non-Latin Alphabets

    Posted: 07 Feb 2020 11:11 AM PST

    How can I know what's new in android development?

    Posted: 07 Feb 2020 10:55 AM PST

    I've been away from android development for more than a year now. I have an interview coming up for a junior android development role next week and I want to make sure I'm up with the latest things. What is the best way to know what changes in SDK and releases has been done in the past year or so?

    submitted by /u/AntiSaby
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