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Weekly "who's hiring" thread!

Monday 5 September 2016
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Weekly "who's hiring" thread!

Weekly "who's hiring" thread!

Posted: 05 Sep 2016 06:33 AM PDT

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

Here is a suggested posting template:

Company: <The company>
Job: <Title>
Location: <City, State, Country>
Allows remote: <Yes/No>
URL: <Link to the listing URL>
VISA: <Yes/No>

Feel free to include any other information about the job.

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Questions Thread - September 05, 2016

Posted: 05 Sep 2016 05:11 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 today's thread? Click this link!

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Can You Read Your Tests? Clean and Useful Android Testing, with JUnit and Spock!

Posted: 05 Sep 2016 02:57 PM PDT

ErrorHandler - Efficient error handling for Android/Java

Posted: 05 Sep 2016 08:23 AM PDT

Hello fellow Redditors,

We just Open Source-d the ErrorHandler library we built for Workable's Android App.

It has 0 Android dependencies so it gives it the flexibility to be used in Java projects as well.

Its API is pretty straight forward, but we are always open to hear your feedback and improve it more.

Enjoy :) !!

https://github.com/Workable/java-error-handler

submitted by /u/rexes13
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How could I go about creating a UI for blind people?

Posted: 05 Sep 2016 09:55 AM PDT

I've heard of blind people using smartphones, I don't get how though.

Do they traverse menus by audio? How do they navigate back and forth? By speech recognition?

I'd love to learn more about this. Know any good resources?

submitted by /u/devandro
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Using RxJava in a large sdk?

Posted: 05 Sep 2016 10:55 PM PDT

Beginning to build the new beginnings of an sdk for my company (won't be named). It's going to be large in general, the current one has lots of issues, and starting from scratch to slowly build up over time, no large rush. This sdk is also something that would be used by clients, and not just used internally.

I've got quite a fair amount of experience with rx, and the sdk itself is going to be large regardless (must handle persistence, long living socket communications, background service(s), notifications, etc).

Any thoughts on pulling in rxjava into an already large sdk? My thoughts are the benefits from using rxjava will outweigh the method counts being pulled in.

submitted by /u/GoliathMcDoogle
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Looking for Open Source projects to Contribute

Posted: 05 Sep 2016 12:07 PM PDT

I am an android dev with intermediate knowledge of android. I am about to complete my android developers nanodegree from udacity and also currently working as an android dev in a startup. I am looking for an awesome open source project to contribute to. If you have one or know one let me know. I'll be more than happy to contribute! Thank you!

submitted by /u/Neeraj_13
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DropDownWarning - library

Posted: 05 Sep 2016 10:16 AM PDT

Hey,

I made this little library for creating drop down warnings/ massages and decided to share it!

https://github.com/Brudigem/DropDownWarning

submitted by /u/Brudigem
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Where Can I Create Coupons for My App?

Posted: 05 Sep 2016 11:32 AM PDT

My app is a paid app, however I want to give it to some people for free. Is there a way to create coupon codes through the Google Play Developer console or another method?

submitted by /u/MadHatter8816
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Can't pull APKs on Nougat Nexus 5X

Posted: 05 Sep 2016 11:19 PM PDT

Whenever I try and adb pull an installed APK from my device, it says adb: error: remote object {name} does not exist. I've tried and it works with files in /sdcard, and I definitely have access to the APK. I can also ls inside the app's install directory and it will be fine.

Here is an example with Snapchat:

pm path com.snapchat.android gives me /data/app/com.snapchat.android-2/base.apk

ls -l /data/app/com.snapchat.android-2gives me 

total 153872 -rw-r--r-- 1 system system 78767561 2016-09-02 13:03 base.apk drwxr-xr-x 3 system system 4096 2016-09-02 13:04 lib drwxrwx--x 3 system install 4096 2016-09-02 13:05 oat

I can stat and cat the base.apk, which proves there isn't a file permissions issue.

I've restarted my phone, restarted adb, rebooted my computer, tried it with other apps, tried it with everything and nope, it's like adb just can't see it. Anything I can try or do?

submitted by /u/yxpow
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[Discussion] Why so many permissions is 'Google play service' required?

Posted: 05 Sep 2016 11:13 PM PDT

*Body Sensor

*Calendar

*Camera

*Contacts

*Location (only This is Optional)

*Microphone

*Phone

*SMS

*Storage

I has developed some android games. Some games have 'Achievements' and 'Leaderboard'. so I need 'Goole play service'.

Why so many permissions is 'Google play service' required?

Why are these permissions forced?

This is annoying me. any user, not the developer.

submitted by /u/jodi_moon
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What is the best and most up-to-date book to read for me?

Posted: 05 Sep 2016 10:44 PM PDT

Hello, androiddev community!

I used to study computer programming in college and it's been over 15 years but I am planning to kick back and learn how to program android app. Though I learned Java, I vaguely can remember the things taught aside from loops and binary tree; however, I did learn about dynamic programming and graph algorithm a while back. I have no knowledge about how to program using android studio. What is the best book that is most up-to-date and suitable for me to read?

submitted by /u/dark_chocolate_chip
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I've looked for weeks but haven't found anything useful: What's the easiest way to move objects on the screen?!

Posted: 05 Sep 2016 01:17 PM PDT

Hey guys,

As you can probably tell, I'm pretty novice with Android Studio (though I'm fluent in Java). I'm building a very simple game where there are little pictures that spawn at the top of the screen and fall to the bottom, and your goal is to hit as many of them as possible. So all I need is a smooth translation from the top to the bottom of my screen. I assume the object will be an ImageView that will be clickable.

I know this sounds like a very simple question, and some will say "use google!" And I have, but have gotten no where. I assume I have to use the translateAnimation class (right?), but I have no idea how to implement it. Every example I come across seems too advanced, with a ton of unexplained stuff.

Other implementations I've heard: Using Canvas (but how?) and the Objectanimator Class, though I don't know how to use either.

If anyone of you guys can be kind enough to painstakingly explain this to a beginner, I'd do anything. As the title says, I've spent a ton of time trying to learn this on my own, but I'm finally resorting to asking someone for help.

Thank you so, so much!

EDIT: Also, I will be developing the same app for iOS as well. Should I go about using Corona SDK or Moai? I'm so confused...

submitted by /u/StormStooper
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Make an educated choice, when working with Realm+Android

Posted: 05 Sep 2016 06:01 AM PDT

NewsTab Android Beta - RSS reader with intuitive UI and a lot of customization options (Recommended: Check out Android app)

Posted: 05 Sep 2016 02:14 PM PDT

[Discussion] What is the most painful problem with testing android apps?

Posted: 05 Sep 2016 09:22 AM PDT

I am working on android apps testing / beta testing solutions + I am working on the android app for beta testers. I would like to know how do you usually test your applications (not in-house) and do you have any problems with that?

Google (or other services) offers you a distribution system through Play Store, Reviews + Crash reporting.
You also can use different SDKs to track user actions and Google+ communities to communicate with them. Besides that, there is a list of common problems: - hard to find testers; - hard to engage testers; - hard to filter feedback from spam; - hard to filter duplicate reports; - hard to get detailed bug reports; - hard to validate bugfix on the user device;

How do you handle them? Do you have something to add to this list?

submitted by /u/haradreborn
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What would be the best approach to create such an animation?

Posted: 05 Sep 2016 02:07 PM PDT

I recently tumbled across this lovely animation. It looks really gorgeous. But I have no idea on how I would start to implement this. Any tips/resources on how I can achieve this? Is SVG path animations (morphing and following) the way to go?

submitted by /u/positivedown
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How does one properly manage a socket for sending packets and receiving them? (and put it in the background?)

Posted: 05 Sep 2016 07:16 AM PDT

DISCLAIMER: I'm still new to the Android dev fields, and thus I don't know if I'm asking for too many things at once and/or nonsense and/or blatantly obvious things. Feel free to warn me if that's the case.

So I'm building an app that is supposed to communicate with a server for remote control and monitoring. Without going too much into details, here's the behavior I aim for:

  • The app has a MainActivity which can either lead you to the settings or, assuming you know the password that has been set for it, connect to the server using the IP and port that are set using the settings screen.
  • When connecting to the server, you are led to another activity (MainMenuActivity) that is parent to any other activity that needs the connection opened in order to function (i.e to display an alert). Thus I assume the Socket(?) should be bound to the MainMenuActivity.
  • For server-client communication, it should be just sending each other sending information through XML-formatted packets. Both sides are supposed to send AND receive packets.

As elementary as this probably sounds, I am confused as to how I should do it. Proper OOP policy leads me to think that I need a separate object for network managing, and multiple StackOverflow threads like this one have led me to think that the best (only?) way to do this is using a background thread that looks up if the output stream is empty.

This rises several questions:

  • What is the proper way to communicate with the thread to get it to send messages, and react to received ones? After more looking up, it seems a way to do it right it an IntentService, but it seems that such class is only meant for one task at a time, which is not what I want since I want it to both report any received packet for handling, and send packets when I want it to.
  • This might be due to my heavy C++ background, but I would suspect there is some way to just say "Connect there, send anything I pass through method X, and use callback Y when you get an incoming packet". Is that not a thing in this case?
  • It would seem many questions I spot on SO ask for background sockets that receive data only, and only send the minimum keep-alive schtick. Is my project flawed design-wise?
submitted by /u/Pixelmod
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How To Develop an App Like Uber: Tips from Taxi App Developers

Posted: 05 Sep 2016 06:56 AM PDT

Best way to achieve timetable view

Posted: 05 Sep 2016 08:39 AM PDT

I want to implement the following: layout

Been wondering how would you guys approach such layout.

Constraints:

  • Number of columns 1-4
  • Dynamic number of items inside columns
  • Vertical scrolling (if necessary)
  • Strongly tied content inside of a column with possible fluent transition from one item to the next

Its pretty much a timetable view with margins correlating to time.

I'm wondering if this should even be a Recyclerview and if yes if I should write a custom LayoutManager or use the StaggeredGrid one if thats even possible.

Special point: How to handle landscape mode.

Im really thankful on any input on this matter.

submitted by /u/StartRedditForResult
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Adding advertisements for a game on Play store?

Posted: 05 Sep 2016 11:57 AM PDT

Hi! im planning on uploading a game my friends and I have created to the play store. Still no developer account yet, but will create one very soon. Anyone know how the process goes for adding advertisements to monetize the game? And also if anyone has experience on how you collect funds(paypal or something else?) Thanks!

submitted by /u/Mailmanmagic
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Yet another basic introduction to RxJava driven by examples

Posted: 05 Sep 2016 12:50 AM PDT

Hi! I made a little annotation processor library for generating A/B tests for Android

Posted: 05 Sep 2016 12:21 AM PDT

Kotlin extension to pluralize and singularize strings

Posted: 05 Sep 2016 02:42 AM PDT
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