当从一个状态转换到下一个状态时，框架自动捕获当前状态，包括所有实例变量。
As you transition from one state to the next, the framework captures the current state, with all instance variables, automatically.
活动框架代表了当前的状态，并通过使用输入和输出针脚来允许添加活动参数。
An activity frame represents current activity and allows adding activity parameters by using input or output pins.
新组件的状态在框架中已经存在。
The state for the new component is already available within the framework.
应用推荐