React Native 问题解决

1、React Native 多次点击按钮引发多次进入界面的问题：

解决：将react navigation 集成redux 后：

const navigateOnce = (getStateForAction) => (action, state) => {
  const {type, routeName} = action;
  return (
    state &&
    type === NavigationActions.NAVIGATE &&
    routeName === state.routes[state.routes.length - 1].routeName
  ) ? null : getStateForAction(action, state);
  // you might want to replace 'null' with 'state' if you're using redux (see comments below)
};
MainStackRouter.router.getStateForAction = navigateOnce(MainStackRouter.router.getStateForAction);


const initialState = MainStackRouter.router.getStateForAction(MainStackRouter.router.getActionForPathAndParams('Splash'));
const navReducer = (state = initialState, action) => {
  const nextState = MainStackRouter.router.getStateForAction(action, state);
  // Simply return the original `state` if `nextState` is null or undefined.
  return nextState || state;
};

2、