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我在使用redux-thunk的反應原生應用程序中使用了AsyncStorage & redux-persist。所以自然地，在調度一個動作之後，改變狀態會有延遲。asyncstorage + redux thunk + redux persist，調度回調
import { compose, createStore, applyMiddleware } from 'redux';
import { persistStore, autoRehydrate } from 'redux-persist';
import thunk from 'redux-thunk';
import reducers from '../reducers';
import { AsyncStorage } from 'react-native';
import createLogger from 'redux-logger';
const logger = createLogger({
predicate:() => process.env.NODE_ENV === 'development'
});
const middleWare = [ thunk, logger ];
const createStoreWithMiddleware = applyMiddleware(...middleWare)(createStore);
export function makeStore(onComplete :?() => void) {
const store = autoRehydrate()(createStoreWithMiddleware)(reducers);
persistStore(store, {
storage: AsyncStorage
}, onComplete);
return store;
}
export default makeStore;
在我的情況
console.log(this.props.counter); // 1
this.props.dispatch(incrementCounter());
console.log(this.props.counter); // still 1 ?
所以我需要做的就是添加一個Promise喜歡上了調度功能類似
this.props.dispatch(incrementCounter())
.then(() => console.log(this.props.counter)); // 2
我怎麼能做到這一點的回調？我用setTimeout，但我不認爲它是一個可靠的選項。