退出APP时清空栈里所有activity

退出APP时清空栈里所有activity

一、Intent方式

• 辅助activity,退出时指明跳转到改Activity,启动后立即结束

/**
 - 退出app时清空栈里的所有activity,辅助activity
 - Created by Administrator on 2016/9/10.
 */
public class AssistActivity extends Activity{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        finish();
    }
}

• Intent具体写法

Intent intent = new Intent(context, AssistActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(intent);

---

二、用一个类来缓存已存在的activity,用list集合来保存还在运行的activity

/**
 * 核心工具类
 * Created by sks on 2016/4/9.
 */
public class CoreUtils {

    //Activity列表
    public static ArrayList<Activity> activityList = new ArrayList<Activity>();

    /**
     * 添加Activity到列表中
     * @param activity
     */
    public static void addAppActivity(Activity activity){
        if(!activityList.contains(activity)){
            activityList.add(activity);
        }
    }

    /**
     * 从列表移除Activity
     * @param activity
     */
    public static void removeAppActivity(Activity activity){
        if(activityList.contains(activity)){
            activityList.remove(activity);
        }
    }

    /**
     * 退出应用程序
     */
    public static void exitApp(Context context){

        L.d("销毁Activity size:" + activityList.size());
        for (Activity ac : activityList) {
            if(!ac.isFinishing()){
                ac.finish();
            }
        }
        activityList.clear();
        //杀掉进程
         android.os.Process.killProcess(android.os.Process.myPid());
    }

    /**
     * 清空List集合
     * @param list
     */
    public static void clearList(List<?> list){
        if(list!=null){
            list.clear();
        }
    }

}