Android应用程序退出实例

1、Application当中代码：

public class WeiboApplication extends Application { // 程序退出标记 private List<Activity> activities = new ArrayList<Activity>(); public void addActivity(Activity activity) { activities.add(activity); } @Override public void onTerminate() { super.onTerminate(); for (Activity activity : activities) { activity.finish(); } android.os.Process.killProcess(android.os.Process.myPid()); } }

2、每个Activity在oncreate当中的代码：

@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.main_activity); WeiboApplication app = (WeiboApplication) getApplication(); app.addActivity(this); }

3、在TabActivity当中设置退出代码（类似的可以在普通Activity当中设置）

@Override public boolean dispatchKeyEvent(KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_DOWN && event.getKeyCode() == KeyEvent.KEYCODE_BACK) { // 创建对话框 LayoutInflater li = LayoutInflater.from(this); View exitV = li.inflate(R.layout.exitdialog, null); AlertDialog.Builder ab = new AlertDialog.Builder(this); ab.setView(exitV);// 设定对话框显示的View对象 ab.setPositiveButton(R.string.menu_logout_label, new OnClickListener() { public void onClick(DialogInterface arg0, int arg1) { // TODO Auto-generated method stub WeiboApplication app = (WeiboApplication) getApplication(); app.onTerminate(); } }); ab.setNegativeButton(R.string.cancel_button_title, null); // 显示对话框 ab.show(); return false; } return false; };