72 lines
1.7 KiB
Dart
72 lines
1.7 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../../providers/api/BaseProvider.dart';
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class APIBuilder<T extends BaseProvider, K, DTO> extends StatefulWidget {
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const APIBuilder(
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{super.key,
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required this.onLoad,
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required this.onData,
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this.interval,
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this.dto});
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final DTO? dto;
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final Duration? interval;
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final Widget Function() onLoad;
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final Widget Function(K t) onData;
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@override
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State<APIBuilder<T, K, DTO>> createState() => _APIBuilderState<T, K, DTO>();
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}
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class _APIBuilderState<T extends BaseProvider, K, DTO>
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extends State<APIBuilder<T, K, DTO>> {
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Timer? timer;
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@override
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void didUpdateWidget(APIBuilder<T, K, DTO> oldWidget) {
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if (oldWidget.dto != widget.dto) {
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Provider.of<T>(context, listen: false)
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.loadFuture(context, dto: widget.dto);
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}
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super.didUpdateWidget(oldWidget);
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}
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@override
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void initState() {
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super.initState();
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Provider.of<T>(context, listen: false).loadFuture(context, dto: widget.dto);
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if (widget.interval != null) {
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timer = Timer.periodic(widget.interval!, (Timer t) {
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Provider.of<T>(context, listen: false).refresh(context);
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});
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}
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}
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@override
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void dispose() {
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super.dispose();
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timer?.cancel();
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}
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@override
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Widget build(BuildContext context) {
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final Future<K> fut = Provider.of<T>(context).data as Future<K>;
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return FutureBuilder<K>(
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future: fut,
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builder: (context, snapshot) {
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if (snapshot.hasData) {
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return widget.onData(snapshot.data!);
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} else {
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return widget.onLoad();
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}
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},
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);
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}
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}
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