Android App Development 2 9 April, 2015
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Android App Development 2
9 April, 2015
Set Up Development Environment
Creating an Android Project Running your app
Run on a Real Device
Last Workshop
1. Run on a Real Device2. Run on the Emulator*
Running Your App
← Today
* hardware or software that enables one computer system to behave like another computer system
Create an AVD (Android Virtual Device) *1. Select Tools > Android > AVD
Manager or click2. Click Create Virtual Device3. Select Nexus 6 and click Next4. Select the desired system version for the
AVD and click Next5. Verify the configuration settings, then
click Finish
Run on the EmulatorRunning Your App
* a device configuration for the Android emulator
Run the app from Android Studio1. Click Run2. Choose Launch emulator3. Select the emulator you created
from the pull-down menu, and click OK
Run on the EmulatorRunning Your App
Building a Simple User Interface
View / ViewGroup
View ContainerDefine how the child views are laid out
UI widgetButton, Text Field etc.
Building a Simple User Interface
ViewGroup LinearLayout
Lay out child views in eithera vertical or horizontal orientation
View Text Field Button
Layout
LinearLayout
ButtonText Field
Building a Simple User Interface
Edit res/layout/activity_my.xml
Create a Linear LayoutBuilding a Simple User Interface
“vertical” or “horizontal”
Edit res/layout/activity_my.xml Add the following between
<LinearLayout …> and </LinearLayout>
Add a Text FieldBuilding a Simple User Interface
The view should be only as big as needed to fit the contents of the view.A default string to display
when the text field is empty.
Edit res/values/strings.xml
Add String ResourcesBuilding a Simple User Interface
activity_my.xml
strings.xml
Running your app Run on the Emulator
Building a Simple User Interface View / ViewGroup Create a Linear Layout Add a Text Field Add String Resources
Next Workshop Add a Button …
Wrap Up for Today
Follow the link and read the articles Real Device vs Emulator
http://www.guru99.com/real-device-vs-emulator-testing-ultimate-showdown.html
Android Layouts http://www.androidhive.info/2011/07/android-
layouts-linear-layout-relative-layout-and-table-layout/
Assignment
fin.
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