Guide Make a android app

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This is all going to be very abstract at this point! Some of these things you can build yourself using tools like Adobe Illustrator. You could even go another route and outsource some aspects of the design. That post will also show you how to add the graphics you collected to your project. Like I said though, our aim is to make this app as simple as possible and that means limiting the number of activities as much as possible.

How to Build a Basic Android Game in Just 7 Minutes (Unity)

If you only have one or two screens and you use a minimalistic design, you should be able to finish the basic layouts in a day. Now comes the more challenging part — adding the code. This will show you how to make certain things happen when your buttons are clicked and how to handle things like variables, resources etc.

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It can also serve as a recap on how to create a new activity and do some other basic bits. Do as much as you can with what you already understand about Java and what you learn from this post. Just set up the basic things like operations, variables and button clicks. This lets you run Android apps on your computer so that you can test whether your apps are working or not. By now though, you should have some of the basic functionality in place so that your app responds to button clicks in one way or another and perhaps stores some variables.

Next is to add the more advanced functionality that will be specific to your app. For example, you might want your app to play music when a button is clicked. Maybe you want to add some flashy animations. Or perhaps you need to know how to transition from one activity to the other.

How it works

At the time of writing, that search string brings up a ton of different suggestions from sites like Stack Overflow and YouTube. By the end of day 8, your app should be able to do all the things that it needs to do. Another tip is to give your app to your friends and family so they can have a go at testing it. Then, there are four tools that you will need and they are available on the Internet for free:. You can download the JDK and install it, which is pretty easy. After you have successfully installed the Android SDK , it is time to configure it. After installing the Android SDK, you will get a window like this:.

Click on Install 7 packages to continue with the installation. You will get a dialogue box like this:. It will take some time to install, so in the meanwhile you could do some other task to kill the time. How long will it take? Well, it depends on the speed of your Internet connection. Once it is done, you can close the SDK manager. Install the latest version of Eclipse. After successful installation, it should display a window like this:. Here you will learn to install the Android Development Tool plugin for Eclipse. This will display the following dialogue box. When you press OK, Eclipse will start to search for the required plug-in and finally it will list the found plug-ins.

The last step is to create Android Virtual Device, which you will use to test your Android applications. Use the screenshot below to enter the correct values. You have successfully created Android Application Development environment. Before we write the code, you need to know how to take input from the user.

Learn how to create applications in an Android development environment in this guide.

The most efficient way of taking input from the user is to use the Scanner class, which is found in the java. I recommend using the Scanner class because it works equally well on command line as well as with Eclipse that we will use to make the Rock Paper Scissors app.

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We will save you the trouble of writing the java code for a simple Rock Paper Scissors app and use can use the code below, but you are free to use your own code if you prefer. Now calling the Java code in Eclipse is a tricky process and it helps to pay attention while you're doing this. When the Create a Java Project box appears, it's time to give your project a name. Click on Finish to save it and it should appear in the Package Explorer window.

Then we are supposed to add a package which will contain all our package files. Click on New Java Package icon to do this, as shown in the screenshot below. After you create a new class, it will show up in the Work Space where you can write or copy the code. You have just finished writing your first Java Application in Eclipse.

5 Things to Know Before Building Your First Android App

After selecting the export button, select Create new keystore and it will take you to the location where you want to save it, so give it a name and save it. Fill in all the required fields that are self-explanatory and save it. You have successfully exported the apk file to your computer and you can test the app it on your android device.


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Testing is as important as developing the app because your app will be of no use if it doesn't run properly or shows errors. Luckily, there is an integrated testing framework in Android Framework, which you can use to test all the aspects of your application. SDK tools can also help set up and test applications. Reviews Review Policy.


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