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| − | === Introduction === | + | ===Introduction=== |
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| − | This tutorial shows you how to develop your first Android application and run it on the DACU platform. | + | This tutorial shows how to develop your first Android application and run it on the DACU platform. |
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| − | === Boot the system === | + | ==== Boot the system ==== |
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| | Let's assume the system is configured to boot loading the kernel and root file system from the internal flash. | | Let's assume the system is configured to boot loading the kernel and root file system from the internal flash. |
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| − | Start the system as described in the [[Industrial_Tablet#.22Normal.22_mode | Running Android in "normal mode"]] section.
| + | The first thing to do is to connect the null-modem serial cable to the J3 connector |
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| − | {{ImportantMessage|text='''The default IP address is 192.168.0.122'''}}
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| − | | |
| − | | |
| − | ==== Change the default ip address ====
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| − | If the default ip address is not suitable for your network configuration, you need to modify it. The first thing to do is to connect the null-modem serial cable to the J3 connector
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| | [[File:Dacu-serial-console-cable.jpg|thumb|none|border|350px|Dacu serial cable]] | | [[File:Dacu-serial-console-cable.jpg|thumb|none|border|350px|Dacu serial cable]] |
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| − | and start your preferred terminal emulator, as described in the [[Industrial_Tablet#.22Full_control.22_mode | Running Android in "full control mode"]] section. | + | and start your preferred terminal emulator, as described in the [[Android_Development_Environment_(DACU)#Running_Android | Running Android]] section. |
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| − | On the u-boot console, please enter the following command to check the default ip address:
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| − | | |
| − | <pre class="board-terminal">
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| − | => print ipaddr
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| − | ipaddr=192.168.0.122
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| − | </pre>
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| − | | |
| − | To change the ip address, please enter the following commands:
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| − | <pre class="board-terminal">
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| − | => setenv ipaddr <enter-new-target-ip-address>
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| − | => saveenv
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| − | Saving Environment to Flash...
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| − | Un-Protected 1 sectors
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| − | Un-Protected 1 sectors
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| − | Erasing Flash...
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| − | . done
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| − | Erased 1 sectors
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| − | Writing to Flash... done
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| − | Protected 1 sectors
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| − | Protected 1 sectors
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| − | =>
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| − | </pre>
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| − | | |
| − | Once configured, you can start the system launching the following commmand:
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| − | | |
| − | <pre class="board-terminal">
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| − | => boot
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| − | </pre>
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| − | | |
| − | For further information, please refer to the [[:Category:U-Boot|U-Boot]] section.
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| − | | |
| − | ==== Check the Android Debug Bridge (ADB) and connect to the target ====
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| − | Start a connection through the Android Debug Bridge as described in the [[Industrial_Tablet#Running_the_Android_Debug_Bridge | Running ADB]] section. Please note that setting the correct IP address on the target and is mandatory to make ADB work.
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| − | | |
| − | === Develop your first application with Eclipse ===
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| − | | |
| − | ==== Start working with Eclipse ====
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| − | Launch the Eclipse IDE and start the AVD Manager to create a DACU emulator. To do that:
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| − | # click on "Window" on the top menù
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| − | # select "AVD Manager"
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| − | # on the "Android Virtual Device Manager" window, click on "New" and create a DACU emulator with the following settings:
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| − | #* Name: DACU
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| − | #* Target: Android 2.3.3 - API Level 10
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| − | #* CPU/ABI: ARM (armeabi)
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| − | #* SD Card: Size 4 GB
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| − | #* Skin: Resolution, 800x480
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| − | # click on "Create AVD"
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| − | | |
| − | Please refer to the following pictures:
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| − | | |
| − | <gallery widths=400px perrow=3 caption="Creation of a DACU virtual device">
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| − | File:Tutorial-android-avd-1.png
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| − | File:Tutorial-android-avd-2.png
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| − | File:Tutorial-android-avd-3.png
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| − | </gallery>
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| − | | |
| − | ==== Create the application ====
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| − | Follow the instructions provided on the [http://developer.android.com/training/basics/firstapp/creating-project.html Creating an Android Project] page to create a new project. The default project includes a simple application skeleton which runs a simple Activity which shows the "Hello Android" message. You can extend this application adding some other features. When you are comfortable, you can jump to the next step.
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| − | | |
| − | Please refer to the following pictures:
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| − | | |
| − | <gallery widths=400px perrow=3 caption="Creation of the default application">
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| − | File:Tutorial-android-new project-1.png
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| − | File:Tutorial-android-new project-2.png
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| − | File:Tutorial-android-new project-3.png
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| − | File:Tutorial-android-new project-4.png
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| − | File:Tutorial-android-new project-5.png
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| − | File:Tutorial-android-new project-6.png
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| − | </gallery>
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| − | | |
| − | ==== Launch the application on the emulator ====
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| − | To launch the application on the DACU emulator:
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| − | | |
| − | # click on "Run" on the top menù
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| − | # select "Run Configurations..."
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| − | # on the "Run Configurations" window, enter the project name and select the "do nothing" option
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| − | # click on "Run"
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| − | # after a while, the emulator will start and you'll see the Android lock screen
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| − | # drag the "lock" icon upwards to access the Android desktop
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| − | # on the right of the desktop there are three icons: click on the middle one (between the globe icon and the phone icon)
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| − | # click on the "MainActivity" icon: it will open the "Hello, world!" window.
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| − | | |
| − | Please refer to the following pictures:
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| − | | |
| − | <gallery widths=400px perrow=3 caption="Running the application on the emulator">
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| − | File:Tutorial-android-run project-1.png
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| − | File:Tutorial-android-run project-2.png
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| − | File:Tutorial-android-run project-3.png
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| − | File:Tutorial-android-run project-4.png
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| − | File:Tutorial-android-run project-5.png
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| − | File:Tutorial-android-run project-6.png
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| − | </gallery>
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| − | | |
| − | === Deploy the application on the target ===
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| − | To install the application on the target, please follow these steps:
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| − | | |
| − | # close the running emulator
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| − | # check that [[Industrial_Tablet#Running_the_Android_Debug_Bridge | ADB is running]]
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| − | # open a shell and move to the workspace directory containing the project files (example: /home/user/workspace/MyFirstApp)
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| − | # enter the bin sub-directory. If you list the content of this directory, you should see the application .apk file
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| − | # Using ADB, please lauch the following command:
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| − | | |
| − | <pre class="workstation-terminal">
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| − | adb install MyFirstApp.apk
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| − | </pre>
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| − | | |
| − | Now you can access the device, go to the applications screen and touch the "MainActivity" icon to run the application.
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| − | | |
| − | Please refer to the following pictures and watch the [http://www.youtube.com/watch?v=RKkFoX3nEZw Running "Hello, world!" app on DACU] video:
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| − | <gallery widths=400px perrow=3 caption="Deploying the application">
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| − | File:Tutorial-android-install app-1.png
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| − | File:Tutorial-android-install app-2.png
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| − | File:Tutorial-android-install app-3.png
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| − | </gallery>
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| − | | |
| − | === Useful links ===
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| − | | |
| − | [http://www.youtube.com/watch?v=RKkFoX3nEZw Running "Hello, world!" app on DACU]
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| − | [http://developer.android.com/index.html Android Developer Website]
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| − | [https://developer.android.com/training/index.html First project tutorial]
| + | ==== Configure and run the Android Debug Bridge (ADB) ==== |
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