一、安装python在网上很快找到并下载了python2.7版本的安装包。Python 2.7是一个很稳定，成熟的版本，而且有很多开源的模块。PIL就是其中一个非常重要的模块。Python2.7.10的下载地址为：http://www.xiazaiba.com/html/2049.html下载文件为python_2.7.10_XiaZaiBa.rar，解压后双击python-2...

常见用法如下:Image.asset("assets/images/ic_qrcode_preview_tiny.png",height: 30.0, width: 30.0,fit: BoxFit.cover);网络图片fit属性也实用BoxFit.fill:充满父容器。BoxFit.contain:尽可能大，保持图片分辨率。BoxFit....

存:uni.setStorage({key:“属性名”，data:“值”})2 取uni.getStorage({key:“属性名”,success(e){e.data//这就是你想要取的token}})更多详解：喜欢可以加@群号:913934649简书： https://www.jianshu.com/u/88db5f15770dcsdn：https://...

表情列表_emoJiList() {if (!_isShowBottomEmoJi || _commentFocus.hasFocus) {return Container();} else {return FutureBuilder(future: DefaultAssetBundle.of(context).loa...

flutter 加载gif图片flutter 显示动态GIF图片:CachedNetworkImage(imageUrl: avatar ?? '',fit: BoxFit.cover,placeholder: (context, url) => Center(child: Container(height: 40,width: 40,mar...

工作中经常遇到,需要显示到底部,其实很简单的几行代码ScrollController _controller = ScrollController();_buildSuggestions() {if (_list.length > 0)Timer(Duration(milliseconds: 500),() => _contro...

SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]).then((_) {runApp( MyApp());});

先看看效果是不是你想要的library grouped_listview;import 'package:flutter/material.dart';typedef TGroup GroupFunction<TElement, TGroup>(TElement element);typedef Widget ListBuilderFunction<TElement...

使用ListView.separated,就很简单了ListView.separated(scrollDirection: direction,itemBuilder: (context, index) {final Axis slidableDirection =direction == Axis.ho...

ListView.separated(physics: ClampingScrollPhysics(),itemBuilder: (c, i) {return _itemVIew(i);},separatorBuilder: (context, index) {return Container(height: 0,col...