BlackBerry App之Hello World

1. 安装BlackBerry_Email_MDS_4.1.4.exe和BlackBerry_Simulators_5.0.0.228_9700.exe

2. 安装eclipse3.6

3. 安装BlackBerry Java Plug-in for Eclipse v1.1

4. 创建BlackBerry工程，File -> New -> Project -> BlackBerry -> BlackBerry Project

Project name: HelloWorld

Click "Finish" 完成项目创建

5. 创建一个新的java类，名称为HelloWorld，内容如下：

import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.RichTextField;
import net.rim.device.api.ui.container.MainScreen;
public class HelloWorld extends UiApplication {
	public static void main(String[] args) {
		HelloWorld theApp = new HelloWorld();
		theApp.enterEventDispatcher();
	}
	public HelloWorld() {
		pushScreen(new HelloWorldScreen());
	}
}
final class HelloWorldScreen extends MainScreen {
	
	HelloWorldScreen() {
		super();
		LabelField title = new LabelField("Hello World Title", LabelField.ELLIPSIS | LabelField.USE_ALL_WIDTH);
		setTitle(title);
		add(new RichTextField("Hello World!", Field.NON_FOCUSABLE));
	}
	public void close() {
		Dialog.alert("Goodbye!");
		super.close();
	}
}

6. 在BlackBerry的模拟器中运行HelloWorld程序

选择HelloWorld项目，右键 -> Run As -> BlackBerry Simulator

在出现的BlackBerry Simulator窗口里单击菜单按钮，然后单击Downloads图标，此时会出现刚刚新建的HelloWorld应用程序的图标，单击此HelloWorld图标就可以运行此应用程序，这个HelloWorld程序就是在应用程序窗口里显示一个HelloWorld的标签。