How To Code a Weighted Fragment, Android Tutorial '
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Coding a Weighted Fragment



If you are just arriving at this page; and you are not familiar with with creating Android Apps, we suggest you begin with our tutorials: Coding Android App Pages and How To Create a Simple App in Android

From there follow along with each tutorial lesson.

AIDE and ANDROID STUDIO

We are using AIDE(a mobile coding environment using language java/xml), to create these tutorial apps on our
tablet(7" screen) that has android version 5.0.
Once we build and RUN our app; we then install the app on this same tablet; and the app is also installed on a smart phone that has android version 6.
AIDE can be installed on any android version from 4 - 8.
We are using the AIDE coding editor to code our pages; and then to Create - RUN our apps. AIDE is a SDK coding environment for android devices like a tablet or smartphone. AIDE has a free and paid version. Once you create your apps code pages, you need to RUN the app to build your apk package; then you INSTALL it on your tablet or smartphone. For info on using AIDE, gohere

You can also create; RUN your apps using the code in these tutorials, with Android Studio. Android Studio is for desktop computers. Choose Java XML as the programming language. Android Studio is free to install and use for your android app development. Although not as convenient as testing your app on an actual android device; you can test your newly created app in Android Studio using its' android emulator.

Complete Example Codes are available for each of our tutorials. With these example codes you can make a functioning android app in either AIDE or Android Studio.

COPY/PASTE CODE

First, create a java/xml android template app using AIDE, (or Android Studio). Then you can get the code for this app from the EXAMPLE CODE section on this page. Replace the code on the pages you need to(with our tutorial code); in order to create this app.
Sometimes, new pages have to be created.
All the other coded pages in your app can remain as they are; they don't need to be changed.


This is the App - Fragments
It has 2 fragments in the layout, coded by using the weight attribute; meaning each fragment is given a % weight of the layout total.
The percentage for each fragment can be whatever you choose. For this app; fragment 1 is 30% of the layout, and fragment 2 is 70% of the layout. This means that fragment 2 is a larger section of the layout.


Fragment Using Weighted Attribute


Where - How To Use Fragments

Fragments are added to your app interface. You can have as many fragments as you like. Fragments reside within your app activity. Because they do, you do not have to define them in the manifest file as you do with your layout file (typically main.xml, MainActivity.java).
Fragments can be used for any purpose in your app. This tutorial shows how they can be added as a 'weighted fragment'. Each fragment has its own section of the app screen layout.



Creating - Naming Your App Using AIDE

When creating your app,(from left menu) choose:
Create New Project;
Then, choose
New Android App(gradle, android Java/xml)
or
Hello World App Java/xml
if your using the original version of AIDE

You can name your app whatever you like; if your using the name as shown in our example code use;

Fragments for the App Name and,
for the package name(next line) use:
com.aac.fragmentexample ;

If you want to name it differently, you can, just change the code to whatever name you choose where it says, com.aac.fragmentexample, in the coded pages, usually at the top of the java class pages like- MainActivity.java

The Coded Pages

Code for the app - Fragments

For this app you will use these coded pages:

1 layout file, main.xml, where you define your 2 fragments; located at res/layout/,
2 fragments, you must create 2 xml pages, one for each fragment; and put them at res/layout/fragment1.xml; and res/layout/fragment2.xml,
2 fragment java pages, you must create 2 java pages; one for each fragment; where you define the java class code for each fragment; put them at src/java/Fragment1.java and src/java/Fragment2.java
1 strings.xml page, where you define the app name Fragments, located at res/values/strings.xml.

Since this app has no images; we don't have to add any to our drawable-hdpi folder. The folder src/res/drawable-hdpi also has our ic_launcher.png image; but we don't need to add it because it was added automatically when we created our android template app.



EXAMPLE CODE - Code For This Tutorial

JUST USE YOUR MOUSE to copy the code for this tutorial App Name is 'Fragments - located at AppProjects/Fragments in AIDE, open the AIDE app, then open App Projects, THEN select the 'Fragments', app from your files hierachy(left menu); then click on any file from the app, like strings.xml Make sure at top of page, the app name 'Fragments' is there next to AppProjects like so: AppProjects/Fragments, then you know you have the proper App.

Once a file is in the editor, you can edit, save it, then RUN your APP, Install, and Open your app.


Make sure you SAVED EACH PAGE,(or choose automatic saving in AIDE settings) before you RUN your code. SAVE, RUN, INSTALL, OPEN, your App. Once it has been installed on your tablet, you can open it Simply by Clicking on the Android little green App Icon,with the wording 'Fragments' on your tablet. It will be with your other installed apps.

If you make further changes to this App, you need to SAVE, RUN, UPDATE, INSTALL, OPEN the app.





Example Code App - Fragments :
Use Mouse To Copy Paste the Code


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AIDE for creating Android Apps on your tablet or cell phone(android).
Free and Paid - with Free, create java/xml android template apps, and there is a couple free android coding lessons.
With paid, create java/xml android template apps, and you can create a 'keystore' for your app, so you can publish your apps to the marketplaces like Google Playstore and Amazon.
GoTo Aide

ANDROID STUDIO - for creating Android Apps on your desktop computer.
Free to Install and Use
GoTo Android Studio Learn more - Android Studio

The Java XML files we code(example codes) and the Android Apps we create in our Free Tutorials are compatible with Android Studio and AIDE. Just choose Java XML as your Programming Language.

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TUTORIALS I
Java XML
The Coded Pages

Beginners Article
About Our Tutorials
Coding androidmanifest.xml
Coding R.java
Coding buildconfig.java
Coding mainactivity.java
Coding main.xml
Coding strings.xml
Coding drawables

TUTORIALS II
Java XML
Learning To Code

Create A Simple
Android App

Change App Icon

Add Text and Style

Add Buttons To App

Placing Text in
Buttons


Change View
Background Color


Change Screen
Orientation


Add Image to
Activity View


Add Horizontal
Scroll View


Add a Frame Layout

How to Add Themes
To Your App

How To Code
Customized Styles

Code a Toast Message

Coding Resource
Identifiers



TUTORIALS III

Java XML
Adding Features,
Functionality

Coding Shape
Drawable - Lines


Coding A WebView

Coding A Timed
Screen Splash


Coding A Gradient
Drawable


Coding Fragments


Coding A
ListView Fragment


Coding a
Tabbed Fragment


Share Intent
for Text


Share Intent
for Images


Media Player
with Audio


Coding A
Video Player


Localize Your App
World Languages


Coding a Simple ListView

ListView with Toast Message

Android Sliding Drawer

Sliding Drawer
with ListView



from the Web
SPECIFIC CODING TASKS

Add Clickable Button
To textView

Image Button with
Selector

Linear Layout with
weight attribute

OnClick Displays
Message

Screen Density
Coding Practices


CODING ENVIRONMENTS

AIDE
for android tablets

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For desktop computers


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You can use the images included with each tutorial for the purpose of creating your android app. These images are not to be distributed or sold.

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