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    Monday, April 30, 2018

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    Weekly "who's hiring" thread! Android Dev

    April 30, 2018

    Weekly "who's hiring" thread! Android Dev

    Weekly "who's hiring" thread!

    Posted: 30 Apr 2018 05:46 AM PDT

    Looking for Android developers? Heard about a cool job posting? Let people know!

    Here is a suggested posting template:

    Company: <Best Company Ever>
    Job: [<Title>](https://example.com/job)
    Location: <City, State, Country>
    Allows remote: <Yes/No>
    Visa: <Yes/No>

    Feel free to include any other information about the job.

    submitted by /u/AutoModerator
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    Weekly Questions Thread - April 30, 2018

    Posted: 30 Apr 2018 03:56 AM PDT

    This thread is for simple questions that don't warrant their own thread (although we suggest checking the sidebar, the wiki, 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?

    Important: Downvotes are strongly discouraged in this thread. Sorting by new is strongly encouraged.

    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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    App Onboarding Screens, you don’t need them – ProAndroidDev

    Posted: 30 Apr 2018 09:02 AM PDT

    Just passed the Google Associate Android Developer qualification, are there any others worth earning?

    Posted: 30 Apr 2018 11:12 AM PDT

    The exam was very, very easy, and is definitely targeted towards new Android developers.

    I'm a senior android dev, and wondered if there were other reputable qualifications that are worth the time and (company!) money?

    Main motivation is a bit of extra flavour on my CV, as well as ensuring my experience is well rounded (e.g. the associate developer exam taught me a few aspects I hadn't worked with before).

    Edit: Here's the timeline from my experience, was all relatively quick. Still waiting for the certification badge though!

    submitted by /u/JakeSteam
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    Introducing Nanoscope: An Extremely Accurate Method Tracing Tool for Android

    Posted: 30 Apr 2018 11:46 AM PDT

    Android Studio 3.2 Canary 13 available

    Posted: 30 Apr 2018 11:33 AM PDT

    [Talk] Paving your Path to becoming a better Android Developer by Rebecca Franks

    Posted: 30 Apr 2018 01:04 PM PDT

    Retrofit2 + Coroutines

    Posted: 30 Apr 2018 09:49 AM PDT

    How to reproduce Dagger functions or develop your own DI in Kotlin?

    Posted: 30 Apr 2018 02:09 AM PDT

    Building a Kotlin Android app with Go logic

    Posted: 30 Apr 2018 08:56 AM PDT

    Band-aiding legacy networking libraries with Retrofit and OkHttp

    Posted: 30 Apr 2018 03:24 AM PDT

    Android Gradle Plugin 3.1.2 seems to be out, but I don't seen any release notes.

    Posted: 30 Apr 2018 06:53 AM PDT

    I was prompted by my IDE this morning to update to 3.1.2, I clicked on "Release Notes" and was brought to this page which doesn't even seem to have notes for 3.1.1, much less 3.1.2. Anyone know what's in 3.1.2?

    https://developer.android.com/studio/releases/gradle-plugin

    submitted by /u/apotheotical
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    Collaborating with iOS devs?

    Posted: 30 Apr 2018 02:14 PM PDT

    I am thinking of going to local businesses and doing some freelance work, however I know that they will want to see iOS as well. I am not at the point yet where I feel comfortable taking that on and would prefer to just find another local iOS dev to team up with for small projects. Is this feasible? Has anyone here had success with such an endeavor?

    I imagine the biggest issue(s) would be:

    -Finding a serious enough person whom I'd feel comfortable associating myself with.

    -Designing things in such a way that could be easily translated cross-platform

    -Tying in networking services across a different ecosystem.

    Any advice would be greatly appreciated, thanks!

    submitted by /u/Synyster328
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    Share your questions about GDPR

    Posted: 30 Apr 2018 10:25 AM PDT

    At Appodeal we will be hosting a webinar about GDPR. We want to share our experience and what it means to be GDPR-compliant to both our clients and partners. Right now we are gathering questions from publishers and developers like you. So if you are wondering how is this going to impact the way your in-apps ads work or have any other questions, please comment! This is a good opportunity to learn and get prepared.

    submitted by /u/YvonneBriones
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    Realistically, is one free summer enough to develop an app?

    Posted: 30 Apr 2018 02:04 PM PDT

    I will most likely have loads of free time this summer as I didn't get an internship and want to work on something that would be of equal value on a resume for an engineering student.

    I should probably note that I realize making an app requires an immense amount of discipline and there are probably better methods of improving my resume but I want to know if developing either one of these apps is feasible.

    I have two ideas for an app: An improved to-do list/time management app (I would release an offline beta version) or an improved mobile version of ratemyprofessors.com.

    I know Java well and know a very minimal amount of android programming as well as using android studio. Is 3 and a half months enough time to develop one of these apps on my own? Or should I be looking for some other ways to improve my resume?

    submitted by /u/TheOnlinePolak
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    How do I create and use a sound service?

    Posted: 30 Apr 2018 12:47 PM PDT

    I am making an app for my final school project, and need to add a sound service to the app so I can have backround sound to the game, sounds when doing actions, error sounds etc. Every time I copy a sound service(and add it to the manifest obviously) I do not understand how to use it, nor do I understand how to create one. I would love help if possible, thanks.

    submitted by /u/dannyjayes1
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    how to use external webcam as internal on android

    Posted: 30 Apr 2018 05:14 AM PDT

    in some emulators like knox android emulator you can switch between two webcams to use as internal webcam in android you can use it directly in apps like instagram snapchat facebook and others i was wondering if i can do the same thing with an android phone otg cable and a usb webcam ?

    submitted by /u/ilyes998
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    Difference between subscribe() and subscribeOn()

    Posted: 30 Apr 2018 03:38 PM PDT

    By my understanding subscribe() lets you subscribe on the same thread on which you are going to observe it, i.e. the main thread, while subscribeOn() lets you subscribe on different thread as the observe thread. Is that correct? If I want to execute something faster without blocking my UI, should I just use subscribe()?

    submitted by /u/g10kumar
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    Should view listeners and callbacks be removed?

    Posted: 30 Apr 2018 09:35 AM PDT

    Hi everyone!
    I have a question regarding listeners and interface callbacks in Android.

    For example, if I have a fragment that has a button, and I set a listener by implementing onClick(View view) , or by using lambda, is there any point in doing myButton.setOnClickListner(null) in the fragment onDestroyView method?

    From my understanding, the button can't outlive its parent - the fragment, so there is no risk of some memory leak. Is that correct?

    Another similar situation, creating callbacks in Recyclerview adapters that warn the activity or fragment that something happened. Is there any point in setting those callbacks as null when the activity/fragment is destroyed?

    I know we should delete listeners from objects that have a chance to outlive their listeners. For example a fragment listening to another fragment.

    How do you handle your listeners and callbacks? How do you figure out what to do in order to avoid memory leaks from listeners?
    Thank you

    submitted by /u/Sauronshit
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    ViewPager with infinite/looping scroll

    Posted: 30 Apr 2018 05:41 AM PDT

    Embedding Kotlin Playground

    Posted: 30 Apr 2018 01:29 PM PDT

    Debugging Graphics in Surfaceview

    Posted: 30 Apr 2018 12:43 PM PDT

    Hi, does anyone have a tip for debugging graphics? I have a bug that I have no clue how to debug. I run a custom surfaceView that runs a simple snake game, but sometimes the snake breaks in half and the snake tails continue off the screen.

    The problem I have is how to replicate or catch the error. When I'm running the game it is running update & draw methods 30 times a second, and it isn't until the snake tails is long and the snake goes fast that it suddenly breaks. So I can't step through the execution in the debugger, as it then works 100%. I can't make a catch as I don't where the error resides, because there is no error visable when running.

    It seems like the error is caught in a catch somewhere and ignored to make the app run smooth. Does someone have a similar experience? And how is this solvable? Could add the code here so you get some context, but it feels like I just need a pointer to the right debugging method :)

    submitted by /u/Chronomath
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    I'd like to find an android course that makes a meaningful app, googling has let me down

    Posted: 30 Apr 2018 12:14 PM PDT

    So, I've done courses on PHP before, that were ~20 hours long and that, at the end, had a somewhat meaningful and useful app.

    I've failed to find the same on Android. In does not have to be beginner friendly. I'd like to see some good practices by an experienced dev on video, not those 30 hours long "WE MAKE 10 PROJECTS" kinda courses.

    submitted by /u/StrugglingHard95
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    The Power of Android ARCore

    Posted: 29 Apr 2018 08:10 PM PDT

    How do people get analytics on their users? Avg time spent, how many times people use per day, ect

    Posted: 30 Apr 2018 10:07 AM PDT

    Title says it all

    submitted by /u/Mooner99267
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    NEED opensource code

    Posted: 30 Apr 2018 01:19 PM PDT

    Hey, complete amateur looking for opensource code for personal project to make smart to do list. Does anyone know where I can find some code that can store and retrieve data in order to run it through an algorithm to give you results based on weights?

    submitted by /u/mikeshakeman
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