android 完全退出应用程序

模拟Activity堆栈，编写工具类ActivityStackControlUtil

public class ActivityStackControlUtil
{
[align=left] private static List<Activity> activityList = new ArrayList<Activity>();[/align]

public static void remove(Activity
activity) {
[align=left] activityList.remove(activity);[/align]
[align=left] }[/align]

public static void add(Activity
activity) {
[align=left] activityList.add(activity);[/align]
[align=left] }[/align]

public static void finishProgram()
{
for (Activity activity : activityList)
{
[align=left] activity.finish();[/align]
[align=left] }[/align]
[align=left] android.os.Process. killProcess(android.os.Process. myPid());[/align]
[align=left] }[/align]

[align=left]}[/align]

[align=left]在Activity的oncreate方法中调用add方法，将当前Activity添加到activityList中，在onDestroy方法中调用remove移除，在退出应用的地方调用finishProgram方法把所有未finish的anctivity finish掉。[/align]