This Tutorial App Coding a Sliding Drawer
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Coding a Sliding Drawer
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.
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
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.
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 - Sliding Drawer
This is Sliding Drawer Left to Right
Where - How - Why To Use a Sliding Drawer
A sliding drawer is a feature you can add to your UI (user interface), which allows for a view to slide out from the side of your app which overlaps your app's view. You can toggle
the sliding drawer view by adding a handle to it by using an image.
The drawer can slide from top to bottom,
left to right, right to left, or bottom to top. For our app tutorial, the drawer will slide from left to right.
As the drawer has its own self contained view, you can add to it whatever you like; textview, imageview, buttons. You can add a background color also.
For our app, we added a green background to the sliding drawer view, an image, and some text. When you click on the little square icon with the + sign, the drawer will slide from
left to right. And, to slide it back, click the icon again.
To change the position of the square icon, you can use the android:rotation
attribute in your SlidingDrawer
Then, just give a number for the value. We gave the android rotation a value of 180, which positioned the icon close to the side of the view.
Also, in the
SlidingDrawer element you can code the handle for your drawer. To do so, you use android:handle
, and then give it an id name. For this app we gave it the
id name of /handle. Then in your ImageView, you make reference to the handle name from the SlidingDrawer element's code. And, you also code the name of the image you want
to use as the handle. We used the image named - arrow_icon png, for our handle image.
Additional Reading at Android Developer website
Sliding Drawer Android
Creating - Naming Your App Using AIDE
When creating your app,(from left menu) choose:
Create New Project;
New Android App(gradle, android Java/xml)
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;
for the App Name and,
for the package name(next line) use:
The Coded Pages
Code for the app - Sliding Drawer
For this app we need to edit these pages;
1 layout file, main.xml;
located at res/layout/main.xml, already created, just replace the code on this page with the code from our Example Code section and save the page.
The layout page has our Sliding Drawer code and it has the handle code for the sliding drawer. The ImageView with the id of handle contains the image: arrow_icon.png,
that will be used as the handle for the sliding drawer.
We also wanted to add an image and some text to our drawer view. To do so, we coded a linear layout container, and within that container we added our ImageView element(with the id
of imageView1), and
to that we added our image - imagedrawer.png, and our TextView element for the text, which we coded in the text string named - drawertext, at res/strings.xml file.
We added a green background to our sliding drawer view. This is coded in the Linear Layout code.
Our app layout has a LinearLayout wrapper, and then a FrameLayout. We used the frame layout so the views would overlap each other. For our image and text in the drawer, we used
a LinearLayout to use as the container to put our ImageView and TextView elements.
1 java class page; MainActivity.java;
located at app/src/java/MainActivity.java, already created; we have to copy and replace the code on this page with the code
from our Example Code section. Save the page once the code is pasted.
The java page also has our import
codes. The import codes must be coded in your java page for each code class your implementing.
The import codes for this app are:
1 strings file, strings.xml
required for this App: The string file located at res/values/strings.xml has the required app_name string for the app name, and
the text for each of the views.
Just copy/paste the code from our Example Codes section. Save the page.
EXAMPLE CODE - Code For This Tutorial
JUST USE YOUR MOUSE to copy the code for this tutorial
App Name is 'SlidingDrawer - located at AppProjects/SlidingDrawer in AIDE, open the AIDE app, then open App Projects, THEN select the 'SLidingDrawer',
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 'SlidingDrawer' is there next to
AppProjects like so: AppProjects/SlidingDrawer, 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 'SlidingDrawer' 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.
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