Device Art Generator From Android Developer

How do Android App Developers create the images to upload in Play Store?

Developing apps for last couple of years, I have gone through some of the ways to create such images to upload on play store.The list goes as follows:Device art generator , This provided by google to wrap up screenshots in device artwork. You can add screenshots to google devices (Pixel, Nexus) of different DPI as you like just drag n drop on to the device shown. You can also add screenshots to Android wear too. This thing here fully for android and gives only google devices to put your screenshots. Other than this you can manage Screen Glare and Shadow to your generated device art.PicApp , This here can be used to generate device art on many devices other than the google’s, The number of devices are less but you can get the popular brands such as (Samsung, HTC, etc.), Other than this you can generate device art of android wears, Iphone, tablet, desktop, laptop.MockUPhone, This thing is same as the above but User Interface over here is much cleaner, You can also generate device art for TV here. The brands are almost similar. There is a request your device feature which can be used to request your device with color and required angle (Don’t have an idea of how much time it takes).Android Apps, Other than this there are many apps to do the same which can be found easily on play store.Self made, The time taking way use Photoshop and start generating the device you like and put screenshots in them, you can also use images of the devices to achieve it, all depends on you how you do it .One Important thing these only generate devices with screenshots on a transparent background and you still need to add background Color and text to get what you asked above in Photoshop/Illustrator .

What are the best Android development tools?

There are many Android development tools which will help you building apps like a pro. Some of them are..GenymotionA developer who suffer from using the official Google Android emulator they know that starting the emulator and running an app can be a very tedious process. Therefore, Genymotion solves your problem by offering a free hardware accelerated Android emulator.Genymotion is the fast and easy to use Android emulator to run and test your Android apps. It also allows running test outside of an application and offers support for all major devices. It is virtual device support various Android API levels and works seamlessly with Android Studio. Additionally, it supports different devices and all Android versions.ScalpelThis innovative tool by Jake Wharton can let you experience a 3D visual representation of the entire layout of your app. Beginners can find it really fascinating as it can give them a completely new perspective of looking into your layouts.ClassySharkWith ClassyShark, you can inspect any Android APK to find a lot of valuable information out of it, like the classes, resources, manifest, dependencies, dex count and much more. It can give you an idea of what other apps are doing and probably how they are doing it.For more information 10 Best Android Development Tools For Building Mobile Apps.

Why does every developer on the Play store add the screenshots featuring Nexus phones?

The screenshots are of a nexus for the same reason why many paper ads and TV ads use nexus devices to show phones because when you display a phone of a company you usually have to pay a sum of money or get permission to use the well branded phones to showcase or use as a screenshot shot or any other thing... Nexus devices this isn't the case because the phone is managed by google and also you might have noticed you will never see an ad for a nexus devices...

Is it possible for Android to take Java files and convert them directly to machine code on that particular platform?

That would certainly make the apps run faster. But there's a catch here. Machine code is different for each type of processor, RAM, Cache, Storage etc. And there's thousands of configuration combinations. Don't you think a developer will rather sell peanuts than to test on all of them?iOS does this because there's only one manufacturer of iOS devices and they don't license iOS to anyone else (Actually they can't just because of this). That's why iOS apps run faster than Android ones on similar configuration.ART is a step towards achieving this. Introducing ART | Android DevelopersART works as a compiler on the device itself which recompiles the Java byte code. It compiles the code to make it more compatible with the architecture of the device. Since the device knows what architecture it runs on, the developer doesn't need to worry about testing on each configuration. However it still doesn't truly convert them into machine code. I didn't learnt the ART compilation process yet, thus I can't comment on how the internal compilation works. But it's certainly faster than old Dalvik VM and JIT compilation.Cross-platformness is the only problem Android faces in this situation and in reality Android is popular just because of cross platformness. Each manufacturer can tinker the OS to suit their needs. If Android were to choose single architecture Google would have chosen C++ as the main native language for the platform instead of Java.I hope I am clear in explaining this.

How do I test on multiple screen sizes for my Android app?

Hi there,You don’t need to actually test each and every screen size. But you must follow the guidelines of Google play store and upload some of the pre-defined sizes.On Google Play Store you should upload 2 to 8 screenshots for each supported device type (Smartphone, Tablets 7 Inch to 10 Inch, Android TV, Android Wear).The size recommendations on Google Play aren't as strict as they are for iTunes Connect. There is a minimum dimension of 320 px and a maximum dimension of 2840 px and it should be a JPEG or 24-bit PNG image. But its fine to conform the screenshot sizes with the supported device. If you want to wrap app screenshot in devices, here is a useful link: Device Art GeneratorOr you can also try AppRadar Publisher tool. It takes care of multiple screen sizes, multiple languages and many other rules that we need to follow while publishing an app.Hope it helps!Disclaimer: I am the CEO of AppRadar. We create solutions to optimize your app publishing process and make it easier to optimize your apps for a higher visibility within the app stores. If you have any further questions, you can contact me anytime :)

If I develop an Android mobile app for Marshmallow (6.0) will it run on older android versions such as Ice Cream Sandwitch, Jelly-Bean, Kitkat, Lollipop?

Short Answer: if you set min sdk version to marshmallow, no you can't support older version. If you can change min sdk version to some specific API level you can support it.Long Answer:If you develop an Android app for Marshmallow you still can chose your target devices by choosing the minimum SDK in your manifest.xml file, sometimes you don't have the choice because you may need some specific UI element or system api calls that are not available for older android version. After analyzing your needs and starting the implementation of your app, you have to decide weather you support old devices or not. You still have some options to support older android version. You can use the official android Support libraries to bring some cool new features to old devices; each Support Library is backward-compatible to a specific Android API level. You can use other libraries available over the net for instance to implement material design elements in lower api level.

What are some good tips for making my Android app fit to various screen sizes easily?

It's really important to know how to do this as it can hurt your user experience. When you are developing your app you can use fill_parent and wrap content to maintain the physical size of the interface and in order to prevent blurry images when using Bitmap picture format, make sure to use higher resolution for high density screens. The Android SDK also provides you with an emulator so you can modify the default settings(check screen shot below). When your app is ready, I thought I would save you a bit of time on doing research to monetize your app, I'm using this great service called Widdit which has a revenue sharing model with developers. You can read more about what they do here: Home | Widdit