BaseActivity

获得当前活动名称

getClass.getSimpleName();

退出应用

public class ActivityCollector {
    public static List<Activity>activities=new ArrayList<Activity>();

    public static void addActivity(Activity activity){
        activities.add(activity);
    }
    public static void removeActivity(Activity activity){
        activities.remove(activity);
    }
    //测试finishAll()方法在ThirdActivity中
    public static void finishAll(){
        for (Activity activity:activities) {
            if(!activity.isFinishing()){
                activity.finish();
            }
        }
    }
}

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ActivityCollector.addActivity(this);//向List添加活动
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        ActivityCollector.removeActivity(this);//从List移除活动
    }

//销毁所有Activity后可以加上结束当前进程的方法
public void onClick(View v) {
                ActivityCollector.finishAll();//销毁所有活动
            }