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Learning android studio

The order of making a android app

1. Layout

When you've created a project you need to make the layout of the app. This is done in the res/layout/activity_main.xml file. This file is a xml file that describes the layout of the app. If the folder doesnt exist you can create it by right clicking on the res folder and selecting New -> Android Resource File. There you can add qualifiers to the file. Qualifiers are used to specify what kind of properties its has.

2. Variables for the layout

When you're dragging and droppign things in you can add a recource name to the object. This is used to reference the object in the code. You can add a recource name by clicking on the object and then going to the Attributes tab. There you can add a recource name. That recource name is then used to reference the object in the code.

3. Code

After you made the layout you can start writing code in the MainActivity.java file. This file is located in the java/com.example.myfirstapp folder. This file is the main file of the app and is the file that is run when the app is started.

4. Permissions

If you want to use a certain permission in your app you need to add the permission to the AndroidManifest.xml file. This file is located in the app folder. You can add a permission like this:

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<uses-permission android:name="android.permission.INTERNET"/>
This is a list of all the permissions you can use.

Issues with setting up android studio

We had some issues with setting up android studio. Here is a list of problem. * Gradle not building the application * This was fixed for some by wiping their entire gradle folder and then rebuilding the folder. * Peppersdk not working on the current version of android studio * This was fixed by downgrading the version of android studio to 3.4.2

Sources

  • Android studio guides

    • https://developer.android.com/codelabs/build-your-first-android-app
    • https://www.jetbrains.com/help/idea/create-your-first-android-application.html#yivskh_3

  • Permission list

    • https://gist.githubusercontent.com/Arinerron/1bcaadc7b1cbeae77de0263f4e15156f/raw/6c577d9f425340a7dcd1ec5efc7a12c054d6623f/xml_permissions.txt