project> properties ,在order And Export选项中选中 Android 2.2 按确定即可!
图3.3 创建异常
选上
图3.4 设置
3) 代码编辑
图3.5 代码编辑
4) 运行和测试
运行,右键项目文件夹选择Run As>Adroid Application 运行,
注意:菜单绿色的运行按钮可能找不到Adroid Application,不知道是否是ADT的Bug。
图3.6运行
5) 运行效果图如下,运行可能有的慢
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目录
应用程序基础Application Fundamentals .............................................................. 22 关键类 ............................................................................................................................. 22 应用程序组件 ................................................................................................................. 23
激活组件:intent ................................................................................................. 25 关闭组件 ................................................................................................................. 25 manifest文件 ....................................................................................................... 26 Intent过滤器 ........................................................................................................ 27 Activity和任务 ............................................................................................................. 28
Affinity(吸引力)和新任务 ............................................................................... 29 加载模式 ................................................................................................................. 30 清理堆栈 ................................................................................................................. 31 启动任务 ................................................................................................................. 32 进程和线程 ..................................................................................................................... 32
进程 ......................................................................................................................... 32 线程 ......................................................................................................................... 33 远程过程调用 ......................................................................................................... 33 线程安全方法 ......................................................................................................... 34 组件生命周期 ................................................................................................................. 35
Activity生命周期 ................................................................................................. 35 调用父类 ......................................................................................................................... 35
服务生命周期 ......................................................................................................... 38 广播接收器生命周期 ............................................................................................. 40 进程与生命周期 ..................................................................................................... 40