| page.title=Building and Running from Eclipse with ADT |
| parent.title=Building and Running |
| parent.link=index.html |
| @jd:body |
| |
| <div id="qv-wrapper"> |
| <div id="qv"> |
| <h2>In this document</h2> |
| |
| <ol> |
| <li><a href="#RunningOnEmulatorEclipse">Running on an Emulator</a></li> |
| |
| <li><a href="#RunningOnDeviceEclipse">Running on a Device</a></li> |
| |
| <li><a href="#RunConfig">Creating a Run Configuration</a></li> |
| </ol> |
| </div> |
| </div> |
| |
| <p>Eclipse and ADT provide an environment where most of the details of the build process are |
| hidden from you. By default, the build process constantly runs in the background as you make |
| changes to your project.</p> |
| |
| <p>When Eclipse automatically builds your application, it enables debugging and signs the |
| <code>.apk</code> with a debug key, by default. When you run the application, |
| Eclipse invokes ADB and installs your application to a device or emulator, so you do not have to |
| manually perform these tasks. Since most of the build process is taken care of by Eclipse, the |
| following topics show you how to run an application, which will automatically build your |
| application as well.</p> |
| |
| <p>To distribute your application, however, you must build your application in release mode and |
| sign the <code>.apk</code> file with your own private key.</p> |
| |
| <p>This document shows you how to run your application on an emulator or a real device |
| from Eclipse—all of which is done using the debug version of your application. |
| For more information about how to sign your application with a private key for release, see <a href= |
| "{@docRoot}tools/publishing/app-signing.html#ExportWizard">Signing Your Applications</a></p> |
| |
| <h2 id="RunningOnEmulatorEclipse">Running on the emulator</h2> |
| |
| <p>Before you can run your application on the Android Emulator, you must <a href= |
| "{@docRoot}tools/devices/managing-avds.html">create an AVD</a>.</p> |
| |
| <p>To run (or debug) your application, select <strong>Run</strong> > <strong>Run</strong> (or |
| <strong>Run</strong> > <strong>Debug</strong>) from the Eclipse menu bar. The ADT plugin will |
| automatically create a default run configuration for the project. Eclipse will then perform the |
| following:</p> |
| |
| <ol> |
| <li>Compile the project (if there have been changes since the last build).</li> |
| |
| <li>Create a default run configuration (if one does not already exist for the project).</li> |
| |
| <li>Install and start the application on an emulator (or device), based on the Deployment |
| Target defined by the run configuration. |
| |
| <p>By default, Android run configurations use an "automatic target" mode for selecting a |
| device target. For information on how automatic target mode selects a deployment target, see |
| <a href="#AutoAndManualTargetModes">Automatic and manual target modes</a> below.</p> |
| </li> |
| </ol> |
| |
| <p>If you run the application with the Debug option, the application will start in the "Waiting For Debugger" mode. Once the debugger |
| is attached, Eclipse opens the Debug perspective and starts the application's main activity. Otherwise, if you run the |
| application with the normal Run option, Eclipse installs the application on the device and launches the main activity.</p> |
| |
| <p>To set or change the run configuration used for your project, use the run configuration |
| manager. See the section below about <a href="#RunConfig">Creating a Run Configuration</a> for more information.</p> |
| |
| <p>Be certain to create multiple AVDs upon which to test your application. You should have one |
| AVD for each platform and screen type with which your application is compatible. For instance, if |
| your application compiles against the Android 4.0 (API Level 14) platform, you should create an |
| AVD for each platform equal to and greater than 4.0 and an AVD for each <a href= |
| "{@docRoot}guide/practices/screens_support.html">screen type</a> you support, then test your |
| application on each one.</p> |
| |
| <h2 id="RunningOnDeviceEclipse">Running on a device</h2> |
| |
| <p>Before you can run your application on a device, you must perform some basic setup for your |
| device:</p> |
| |
| <ul> |
| <li>Ensure that your application is debuggable by setting the |
| <code>android:debuggable</code> attribute of the <code><application></code> |
| element to <code>true</code>. As of ADT 8.0, this is done by default when you build in debug mode.</li> |
| |
| <li>Enable <strong>USB debugging</strong> on your device. |
| <ul> |
| <li>On most devices running Android 3.2 or older, you can find the option under |
| <strong>Settings > Applications > Development</strong>.</li> |
| <li>On Android 4.0 and newer, it's in <strong>Settings > Developer options</strong>. |
| <p class="note"><strong>Note:</strong> On Android 4.2 and newer, <strong>Developer |
| options</strong> is hidden by default. To make it available, go |
| to <strong>Settings > About phone</strong> and tap <strong>Build number</strong> |
| seven times. Return to the previous screen to find <strong>Developer options</strong>.</p> |
| </li> |
| </ul> |
| </li> |
| |
| <li>Ensure that your development computer can detect your device when connected via USB</li> |
| </ul> |
| |
| <p>Read <a href="{@docRoot}tools/device.html">Using Hardware Devices</a> |
| for more information.</p> |
| |
| <p>Once set up and your device is connected via USB, install your application on the device by |
| selecting <strong>Run</strong> > <strong>Run</strong> (or <strong>Run</strong> > |
| <strong>Debug</strong>) from the Eclipse menu bar.</p> |
| |
| <h2 id="RunConfig">Creating a Run Configuration</h2> |
| |
| <p>The run configuration specifies the project to run, the Activity to start, the emulator or |
| connected device to use, and so on. When you first run a project as an <em>Android |
| Application</em>, ADT will automatically create a run configuration. The default run |
| configuration will launch the default project Activity and use automatic target mode for device |
| selection (with no preferred AVD). If the default settings don't suit your project, you can |
| customize the run configuration or even create a new one.</p> |
| |
| <p>To create or modify a run configuration, refer to the Eclipse documentation on how to create Run configurations. |
| The following steps highlight the important things you need to do for an Android project:</p> |
| |
| <ol> |
| <li>Open the run configuration manager from the Run Menu.</li> |
| |
| <li>Expand the <strong>Android Application</strong> item and create a new configuration or open |
| an existing one. |
| </li> |
| |
| <li>With the Run Configuration selected, adjust your desired run configuration settings: |
| <ul> |
| <li>In the Android tab, specify the Project and Activity to launch. |
| </li> |
| <li><p>In the Target tab, consider whether you'd like to use Manual or Automatic mode when |
| selecting an AVD to run your application. See the following section on <a href= |
| "#AutoAndManualTargetModes">Automatic and manual target modes</a>).</p> |
| |
| <p>You can specify any emulator options to the Additional Emulator Command Line Options |
| field. For example, you could add <code>-scale 96dpi</code> to scale the AVD's screen to an |
| accurate size, based on the dpi of your computer monitor. For a full list of emulator |
| options, see the <a href="{@docRoot}tools/help/emulator.html">Android |
| Emulator</a> document.</p> |
| </li> |
| </ul> |
| </li> |
| </ol> |
| |
| <h4 id="AutoAndManualTargetModes">Automatic and manual target modes</h4> |
| |
| <p>By default, a run configuration uses the <strong>automatic</strong> target mode in order to |
| select an AVD. In this mode, ADT will select an AVD for the application in the following |
| manner:</p> |
| |
| <ol> |
| <li>If there's a device or emulator already running and its AVD configuration meets the |
| requirements of the application's build target, the application is installed and run upon |
| it.</li> |
| |
| <li>If there's more than one device or emulator running, each of which meets the requirements |
| of the build target, a "device chooser" is shown to let you select which device to use.</li> |
| |
| <li>If there are no devices or emulators running that meet the requirements of the build |
| target, ADT looks at the available AVDs. If there is an AVD that matches the build target of the |
| project, ADT chooses that AVD. If the AVD versions are newer than the build target of the project, |
| ADT chooses the oldest possible version of an AVD that meets the project's build target |
| requirement.</li> |
| |
| <li>If there are no suitable AVDs, the application is not installed a console error warning tells |
| you that there is no existing AVD that meets the build target requirements.</li> |
| </ol> |
| |
| <p>However, if a "preferred AVD" is selected in the run configuration, then the application will |
| <em>always</em> be deployed to that AVD. If it's not already running, then a new emulator will be |
| launched.</p> |
| |
| <p>If your run configuration uses <strong>manual</strong> mode, then the "device chooser" is |
| presented every time that your application is run, so that you can select which AVD to use.</p> |