要在React Native Redux中对视图的高度进行动画调整,可以按照以下步骤进行:
安装所需的依赖:
npm install react-redux redux redux-thunk
创建一个Redux store:
// store.js
import { createStore, applyMiddleware } from 'redux';
import thunk from 'redux-thunk';
import rootReducer from './reducers';
const store = createStore(rootReducer, applyMiddleware(thunk));
export default store;
创建一个Redux reducer来处理高度调整的操作:
// reducers.js
const initialState = {
height: 0,
};
const reducer = (state = initialState, action) => {
switch (action.type) {
case 'SET_HEIGHT':
return {
...state,
height: action.payload,
};
default:
return state;
}
};
export default reducer;
创建一个Redux action来设置视图的高度:
// actions.js
export const setHeight = (height) => ({
type: 'SET_HEIGHT',
payload: height,
});
创建一个React Native组件来调整视图的高度:
import React, { useEffect } from 'react';
import { View, Animated, Button } from 'react-native';
import { useSelector, useDispatch } from 'react-redux';
import { setHeight } from './actions';
const AnimatedView = () => {
const height = useSelector((state) => state.height);
const dispatch = useDispatch();
const animatedHeight = new Animated.Value(height);
useEffect(() => {
Animated.timing(animatedHeight, {
toValue: height,
duration: 500,
useNativeDriver: false,
}).start();
}, [height]);
const handleButtonPress = () => {
// 在这里设置视图的高度
const newHeight = 200; // 假设新的高度为200
dispatch(setHeight(newHeight));
};
return (
);
};
export default AnimatedView;
使用Redux Provider来包装根组件:
import React from 'react';
import { Provider } from 'react-redux';
import store from './store';
import AnimatedView from './AnimatedView';
const App = () => {
return (
);
};
export default App;
通过上述步骤,你就可以在React Native Redux中对视图的高度进行动画调整了。