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    Android Dev - App removed from playstore.

    March 05, 2020

    Android Dev - App removed from playstore.

    App removed from playstore.

    Posted: 05 Mar 2020 01:37 AM PST

    Every morning when I wake up I check my phone. I am always a little bit anxious of seeing this little icon from the google console in my notification bar. Usually not good news.
    This morning I saw that icon and almost got a heart attack when I read the notification:
    all my apps removed because of violation of the developer content policy. They did not send me an email at all. What the hell, this cannot be true. Not again please!
    Immediately contacted my account manager at Google admob. Asked him if he could forward my issue directly to the playstore team.
    And of course i quickly went over all my apps. Checking for missing things like app ratings etc. Found an email from last year from the Google Playstore saying: [Action Required] Switch to the Play Referrer API by March 1, 2020. I remember that the issue was actually in one of the firebase libs which were not fixed even a month ago. Could it be that? Lets update the libs first. I also noticed that inside the user aqcuisition section of my apps there was a warning about some kind of expired payment method. Weird, because I am not using that functionality. Checked google.ads and found out that my creditcard was expired. Updated it immediately.

    I filed quickly a new update of all the apps without testing them. Published it and 2 hours laters i got a notification again that my apps are back live! Amazing. My entire morning's mood changed from a hopeless , feared and angered person to the happiest man on earth.

    Nevertheless i find it still unacceptable that these kind of things are possible. I still don't know what the real issue was. My apps are having about 5m daily users and are for a large part generating income for my company. App business remains a still risky one!

    submitted by /u/holoduke
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    Use of reddit api

    Posted: 05 Mar 2020 07:18 AM PST

    I want to ask a question about reddit api.

    Can i use images of reddit in my andoid app? The images that someone use in their post? Like if someone post a image on a subreddit can i show that image in my app using reddit api?

    submitted by /u/droidexpress
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    2 WorkManager releases today

    Posted: 04 Mar 2020 10:26 AM PST

    2 releases of WorkManager today !

    Here are the release notes.

    Keep on background processing.

    There is one more bug-fix release for 2.3 planned. So please file bugs if you see anything odd.
    Thanks !

    submitted by /u/tikurahul
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    How to get location of a wifi hotspot ?

    Posted: 05 Mar 2020 08:30 AM PST

    Hi guys, I'm a new android developper and I'm looking for a way to get the location of the wifi hotspots around me, I've been searching for hours and I can't find a free way, I've found the "geolocation API" but it seems to have a billing to pay ? It's one of my first project in android java.

    I would like to create an application like "Wifi Map" in the playstore.

    Thanks for answers

    ​

    EDIT : Without being connected to the hotspot

    submitted by /u/Vodlich
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    Local notification with smart watch question

    Posted: 05 Mar 2020 07:55 AM PST

    The app will create a notification (when the app is running/ being used). This is possible from what I've seen.

    I do not own a smart watch, and therefore I cannot test it yet.

    Basically the notification should be received on the smart watch that's Bluetooth connected, and it should not show or alert on the Android phone.

    I have not used a smart watch so I am not sure when using the phone and local push notification is triggered, will it show on both or if I can configure? I only want it to show on the watch not phone.

    submitted by /u/temp02112019
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    What is your advice for a First Time Android Camera App Developer

    Posted: 05 Mar 2020 12:01 AM PST

    Hi Android Developers, I have been developing android apps for 4 years now and I am well versed with android but this is my first time with android camera2 api. I am well aware that it is a pain to work with camera in android, so can you tell me and other first time Camera app developers what are the common pitfalls and advice that one needs to be aware about.

    ​

    Edit: I just checked CameraX turned Beta Last Week (Good News)

    https://developer.android.com/jetpack/androidx/releases/camera

    submitted by /u/EnggInventor
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    Getting rid of the white screen on the app start up

    Posted: 04 Mar 2020 01:03 PM PST

    Library dependencies consideration

    Posted: 05 Mar 2020 07:17 AM PST

    Hi,

    need some advice from the community.

    I was given a task to extract a library out of the App we have (it will contain the basic-features, like User registration/handling, plus some extra logic), as to be reused across other Apps of the company. App is nicely-structured, so logic-wise it's not a big deal.

    The problem I see is that the App is strongly based on Rx2. Still not a blocker 'interface-wise', as adding a rx-free layer on top is an easy-win. The real issue I fear is that the dependency on Rx would still remain, and may lead to conflicts with consumer-app dependency on Rx.

    ​

    Do you have any experience with having Rx-based implementation of a library? Would you rather rewrite it (not welcome by the mgmt), or risk conflicts?

    (same question goes to some other popular libs, like retrofit)

    submitted by /u/braczkow
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    Help to choose an up-to-date Course

    Posted: 05 Mar 2020 03:25 AM PST

    I'm a mid experienced Android developer and lately, I found difficult to correctly use all the "good" stuff that the Android team pushed in the last 2 years, in particular:

    - Architecture Componentes and the MVP logic
    - Coroutines
    - Data Binding

    ​

    So I decided to join a course on these topics but literally I couldn't find one that is 100% up-to-date with the latest stuff of end 2019.

    Paid courses are welcome, even on-site one (London).

    Do you have any suggestion for these topics?

    Thank you very much.

    submitted by /u/GiammaTheGod
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    My android studio is so slow it's frustrating. Is there anything I can do to make it faster? Or are there any other programs that I can use instead?

    Posted: 05 Mar 2020 02:11 AM PST

    I have an old(er) PC and Ubuntu installed because it ran faster than Windows that was previously on it. It has 6GB RAM and I know that android studio uses at least 8GB to function normally, but that's the best I got for now. It literally takes 10+ minutes for emulator to just turn on. The feeling reminds me of the old days when the internet was slow AF. Is there anything I can do?

    submitted by /u/rikitard
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    How does one make a progress bar for music appear on Bluetooth speakers?

    Posted: 04 Mar 2020 11:05 AM PST

    Is it possible to eliminate javac compilation completely for a 100% Kotlin app?

    Posted: 04 Mar 2020 09:04 PM PST

    Even with 100% Kotlin source code, will some of the generated files (Navigation, ViewBinding, R class, etc) prevent compilation to be purely kotlinc?

    submitted by /u/nikhilpanju
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    Is name shadowing not recommended?

    Posted: 04 Mar 2020 07:26 PM PST

    When I learned a bit of rust, I learned to shadow my replaced variables. So for example, I do myVariable?.let { myVariable -> since I want to use a null-safe myVariable. Why should I rename to nullSafeMyVariable or it[1]?

    But Android Studio warns me against it. Is it considered unconventional in Kotlin?

    [1]. What does personally grate me a bit is that I can't do something like: val a = 1 val a = a.toDouble() like I can in rust, so I have to come up with names like val aTheInt = 1 val aTheDouble = aTheInt.toDouble() But you can't have everything, I guess.

    submitted by /u/allowthere
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    When to move to the next version

    Posted: 05 Mar 2020 03:26 AM PST

    I have written and published a few apps. I get the to the point of working then publish them, then see how they do and what their pick-up is. A couple of them are doing better than the others. At what point would you start work on the next, prettier version?

    Apps here JumblyApps

    submitted by /u/JumbyApps
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    Localizing A Game Into French—Which Variant Should You Choose?

    Posted: 05 Mar 2020 02:45 AM PST

    Programmatically identifying is a recorded audio using android.media.MediaRecorder is completely silent

    Posted: 04 Mar 2020 10:29 PM PST

    I want to identify if a recorded audio file is completely silent. I mean there is an actual audio file with considerable file size but has complete silent audio data.

    I am recording the audio message as follows:

    MediaRecorder audioRecorder = new MediaRecorder(); audioRecorder.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION); audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.HE_AAC); audioRecorder.setOutputFile(audioRecordingFile); audioRecorder.prepare(); audioRecorder.start();

    On some android 10 devices, the recorded audio is completely silent and if that can be identified programmatically then I can switch to MediaRecorder.AudioSource.MIC instead of MediaRecorder.AudioSource.VOICE_COMMUNICATION which fixes the issue.

    submitted by /u/binaryKarmic
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    What made you choose to become an Android Developer vs a Web Developer.

    Posted: 05 Mar 2020 12:00 AM PST

    This post is inspired by this Android Developer vs Apple Developer, which most ppl stated the reason is Mac and MacOS.

    What about web development?

    submitted by /u/LoneWalker20
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    Let’s learn from mobile gaming success

    Posted: 05 Mar 2020 04:42 AM PST

    Let's learn from mobile gaming success: CMO of Turborilla shares tips on retaining users, reaching the top of the AppStore chart, getting sponsored by Red Bull, and much more https://blog.appodeal.com/q-a-with-turborillas-cmo/?utm_campaign=appodeal_comm&utm_source=reddit&utm_term=androiddev

    submitted by /u/batterygum
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    “How to Implement Migrations With the Room Persistence Library” #androiddevelopment #android #androiddev #programming #roomdatabase #jetpack

    Posted: 05 Mar 2020 06:35 AM PST

    X-post: Developer Preview 1.1 patch now available!

    Posted: 04 Mar 2020 11:06 AM PST

    Using MYSQL Database(PHP) for in app Data

    Posted: 04 Mar 2020 08:59 PM PST

    im looking to develop an App where users will be able to look at house listings and a few other things im wondering if their any drawbacks to using a MYSQL database for dishing out Data to my users will i encounter any issues with increased users and is there maybe a better to do this?

    submitted by /u/pain_point
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    Starting with android app development for the very first time. Need a bit of help.

    Posted: 04 Mar 2020 12:00 PM PST

    Not sure this is the right subreddit to ask this question or not. Anyway.

    I have an MQTT broker set up on my windows pc. I use a Nodemcu connected to a different local network to publish and subscribe to a topic that I can check on my broker.

    I wish to do the same using an android app. I opened up MIT App Inventor and there was no predefined extension for MQTT client. After searching a bit on google I found this extension Free-extension-mqtt-for-websocket. After adding this extension I was unable to find any block that had the option to connect to an MQTT broker IP. Whereas this one has it Paid-mqtt-tcp-ip-extension. But it is a paid version.

    So is there any such other MQTT extension that is free and has the option to connect to an MQTT broker using the IP of the broker?

    Thank you for any help!

    submitted by /u/cyanogen1912
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    Android 9 Blackview smartphone root/twrp problems

    Posted: 04 Mar 2020 08:10 PM PST

    Android 9 Blackview Smartphone root/twrp problems

    I'm trying to find some resources to root and add a custom recovery to this phone. It's a very recent model A80 Pro. A lot of websites have about the same info. My basis website: https://unofficialtwrp.com/blackview-a80-pro-root-twrp/

    I must have a newer build of this phone 'cause I only can fastboot flash the recovery img, not the vbmeta img (getting an error that the vbmeta partition doesn't exist)

    Then I can't boot into twrp because the dm-verity function quickly overwrites twrp.

    A lot of new terminology. Treble device, GSI. Help if you can.

    Bootloader is unlocked 'orange state' and debugging is enabled.

    crossposted: androidquestions, smartphones

    addnote: i booted twrp just once and twrp stated that no os was installed. i tried to make a nandroid backup but no partitions could load. everything was encrypted. so dm-verity did it's work and i'm back to square one.

    submitted by /u/brackish_
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    Process of Activites triggered/launched by implicit Intents

    Posted: 04 Mar 2020 03:48 PM PST

    Hi, noob Android Dev here.

    I'm trying to develop an app that handles implicit intents which triggers an activity within my app. Let's call this Activity IntentReceiverActivity. For what it's worth, IntentReceiverActivity is not my MainActivity (as the name probably implies).

    This is the scenario. So let's say I have my app running already (user runs it). When an implicit intent matches my intent filters and fires up IntentReceiverActivity, is my running app and this newly launched IntentReceiverActivity running in the same process?

    My current instinct tells me no since it would be considered a different instance. But I would love to have confirmations from the masters of this sub! Thanks in advance!

    submitted by /u/reddit968_1
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