daniel-pull-to-refresh/lib/Footer/native.js

A react-native PullToRefresh component.

import React, { Component } from 'react';
import { findNodeHandle, requireNativeComponent, UIManager } from 'react-native';
const NativePullToRefreshFooter = requireNativeComponent('RefreshFooter');
const PullToRefreshFooterCommands = {
    setNativeRefreshing(componentOrHandle, refreshing) {
        UIManager.dispatchViewManagerCommand(findNodeHandle(componentOrHandle), 'setNativeRefreshing', [refreshing]);
    },
};
class PullToRefreshFooter extends Component {
    _nativeRef = null;
    _lastNativeRefreshing = false;
    _onRefresh = () => {
        this._lastNativeRefreshing = true;
        this.props?.onRefresh?.();
        this.forceUpdate();
    };
    _setNativeRef = (ref) => {
        this._nativeRef = ref;
    };
    componentDidMount() {
        this._lastNativeRefreshing = this.props.refreshing;
    }
    componentDidUpdate(prevProps) {
        if (this.props.refreshing !== prevProps.refreshing) {
            this._lastNativeRefreshing = this.props.refreshing;
        }
        else if (this.props.refreshing !== this._lastNativeRefreshing && this._nativeRef) {
            PullToRefreshFooterCommands.setNativeRefreshing(this._nativeRef, this.props.refreshing);
            this._lastNativeRefreshing = this.props.refreshing;
        }
    }
    render() {
        return <NativePullToRefreshFooter {...this.props} ref={this._setNativeRef} onRefresh={this._onRefresh}/>;
    }
}
export { PullToRefreshFooter };