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import 'package:flutter/material.dart';
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import 'commonFun.dart';
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import 'package:flutter/services.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import '../pages/Works/SBBJ/sbbj_content.dart';
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import 'doJSON.dart';
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//删除消息对话框。自定义透明背景窗口，类似对话框
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class CustomDialogJ extends StatefulWidget {
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CustomDialogJ({Key key, this.title = "", this.theKey = "", this.index = -1}) : super(key: key);
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String title;
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String theKey;
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int index;
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_CheckBoxDemoState createState() => _CheckBoxDemoState();
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}
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//需要监听软键盘的弹出和隐藏 主要用 WidgetsBindingObserver 这个继承类
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//https://www.jianshu.com/p/872e23124470
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class _CheckBoxDemoState extends State<CustomDialogJ> with WidgetsBindingObserver {
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String getTitle(int index) {}
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int mapLen = 0;
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@override
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void dispose() {
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// TODO: implement dispose
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//销毁
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WidgetsBinding.instance.removeObserver(this);
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super.dispose();
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}
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@override
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void initState() {
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// TODO: implement initState
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super.initState();
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//mapLen = mapGetSbbjGetData.length;
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print("mapLen = $mapLen");
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getContent();
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//初始化
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WidgetsBinding.instance.addObserver(this);
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}
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@override
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void didChangeMetrics() {
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super.didChangeMetrics();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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setState(() {
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if (MediaQuery.of(context).viewInsets.bottom == 0) {
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//关闭键盘
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bViewInsets = false;
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} else {
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//显示键盘
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bViewInsets = true;
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}
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});
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});
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}
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String strContent = '';
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bool bModifiable = false;
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bool bViewInsets = false;
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getContent() async {
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// strContent = ("" == mapGetSbbjGetData[widget.theKey].toString())
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// ? "（无数据）"
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// : mapGetSbbjGetData[widget.theKey].toString();
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// widget.title =
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// "第 ${widget.index + 1} 项（共 ${mapLen} 项） ： " + mapGetSbbjGetDataText[widget.theKey];
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getPreBtn_NextBtn();
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//时间戳转换
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if(strContent.isNotEmpty && ('addtime' == widget.theKey || 'createtime' == widget.theKey)) {
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strContent = getDate(int.parse(strContent));
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}
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myController.text = strContent;
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bModifiable = false;//mapGetSbbjGetDataModifiable[widget.thekey];
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setState(() {});
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}
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Widget getBtnSizeX({@required text, width = 60.0, height = 30.0, onPressedFun}) {
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return Container(
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color: Colors.white12, //onPressedFun为null时无效
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width: width,
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height: height,
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child: RaisedButton(
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padding: EdgeInsets.all(0),
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textColor: Colors.black,
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child: Text(text),
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onPressed: onPressedFun,
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),
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);
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}
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Future<bool> alertDialog(String title, String content, var onPresse) async {
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return await showDialog(
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barrierDismissible: false, //表示点击灰色背景的时候是否消失弹出框
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context: context,
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builder: (context) {
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return AlertDialog(
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title: Text(title),
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content: Text(content),
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actions: <Widget>[
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FlatButton(
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child: Text("确定"),
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onPressed: onPresse,
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),
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FlatButton(
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child: Text("取消"),
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onPressed: () {
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Navigator.pop(context, false);
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},
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),
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],
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);
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},
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);
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}
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//解决第一次进入报错问题。因为getPreBtn_NextBtn()还未执行，preBtn和nextBtn为空
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Widget preBtn = Container(
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color: Colors.white12, //onPressedFun为null时无效
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width: 60.0,
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height: 30.0,
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child: RaisedButton(
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padding: EdgeInsets.all(0),
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textColor: Colors.black,
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child: Text('上一项'),
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onPressed: null,
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),
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);
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Widget nextBtn = Container(
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color: Colors.white12, //onPressedFun为null时无效
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width: 60.0,
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height: 30.0,
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child: RaisedButton(
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padding: EdgeInsets.all(0),
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textColor: Colors.black,
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child: Text('下一项'),
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onPressed: null,
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),
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);
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getPreBtn_NextBtn() {
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preBtn = getBtnSizeX(
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text: "上一项",
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onPressedFun: null,
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);
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nextBtn = getBtnSizeX(
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text: "下一项",
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onPressedFun: null,
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);
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if (widget.index > 0 && mapLen > 0) {
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preBtn = getBtnSizeX(
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text: "上一项",
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onPressedFun: () async {
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if (widget.index > 0) {
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widget.index--;
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//widget.theKey = mapGetSbbjGetData.keys.elementAt(widget.index);
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getContent();
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}
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},
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);
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}
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if (widget.index < (mapLen - 1) && mapLen > 0) {
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nextBtn = getBtnSizeX(
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text: "下一项",
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onPressedFun: () async {
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if (widget.index < mapLen - 1) {
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widget.index++;
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//widget.theKey = mapGetSbbjGetData.keys.elementAt(widget.index);
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getContent();
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}
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},
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);
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}
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}
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@override
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Widget build(BuildContext context) {
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SystemUiOverlayStyle(statusBarColor: Colors.transparent);
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Size mediaSize = MediaQuery.of(context).size;
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// TODO: implement build
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return WillPopScope(
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child: Scaffold(
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//type: MaterialType.transparency,
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//color: Colors.transparent,
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//backgroundColor: Colors.transparent,
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//color: Colors.blue,
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backgroundColor: Color.fromRGBO(212, 212, 212, 0.6),
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body: SafeArea(
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child: Stack(
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children: <Widget>[
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Container(
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alignment: Alignment(0, 0.2),
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child: Container(
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height: bViewInsets ? mediaSize.height * 0.4 : mediaSize.height * 0.85,
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width: mediaSize.width * 0.95,
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decoration: BoxDecoration(
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color: Colors.white,
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//border: Border.all(width: 1.0, color: Colors.black),
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borderRadius: BorderRadius.all(
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Radius.circular(3),
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),
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),
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child: Column(
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children: <Widget>[
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Padding(
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padding: EdgeInsets.fromLTRB(10, 10, 10, 0),
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child: Stack(
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children: <Widget>[
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Align(
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alignment: Alignment.centerLeft,
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child: Text(
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" ${widget.title}",
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style: TextStyle(
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fontSize: 15.0,
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),
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),
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),
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Align(
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alignment: Alignment.centerRight,
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child: InkWell(
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child: Icon(Icons.close),
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onTap: () {
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Navigator.pop(context); //关闭弹框，播放输入视频地址
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},
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),
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)
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],
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),
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),
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Divider(),
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Container(
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padding: EdgeInsets.fromLTRB(20, 10, 20, 10),
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width: double.infinity,
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child: Container(
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decoration: BoxDecoration(
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color: Colors.white,
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border: Border.all(width: 1.0, color: Colors.blue),
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borderRadius: BorderRadius.all(
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Radius.circular(3),
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),
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),
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padding: EdgeInsets.fromLTRB(10, 10, 10, 10),
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width: double.infinity,
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height: mediaSize.height * 0.15,
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child: SingleChildScrollView(
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child: Container(
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child: TextField(
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//textAlign: TextAlign.right,
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keyboardType: TextInputType.multiline,
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maxLines: 5,
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minLines: 1,
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style: TextStyle(fontSize: 14),
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decoration: InputDecoration(
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hintText: '請輸入字段信息',
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border: InputBorder.none, //TextField去掉下划线
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contentPadding: EdgeInsets.only(right: 0),
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),
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controller: myController,
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enabled: bModifiable,
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//利用控制器初始化文本
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onChanged: (value) {},
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),
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),
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),
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),
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),
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SizedBox(height: 5),
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bViewInsets
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? SizedBox(height: 0)
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: Container(
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padding: EdgeInsets.fromLTRB(20, 10, 20, 10),
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width: double.infinity,
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child: Container(
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decoration: BoxDecoration(
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color: Colors.white,
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border: Border.all(width: 1.0, color: Colors.blue),
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borderRadius: BorderRadius.all(
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Radius.circular(3),
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),
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),
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padding: EdgeInsets.fromLTRB(10, 10, 10, 10),
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width: double.infinity,
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height: mediaSize.height * 0.45,
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child: SingleChildScrollView(
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child: Container(
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//child: Text(strContent),
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child: Text(strContent),
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),
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),
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),
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),
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Expanded(
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child: Container(),
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: <Widget>[
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getBtnSizeX(
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text: "复制",
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onPressedFun: () {
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// Flutter 复制文本到剪贴板
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Clipboard.setData(ClipboardData(text: strContent));
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//showToast('帮助信息已复制到剪贴板', textAlign: TextAlign.left);
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Fluttertoast.showToast(
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msg: '联系人信息已复制到剪贴板', gravity: ToastGravity.BOTTOM);
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},
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),
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getBtnSizeX(
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text: "返回",
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onPressedFun: () {
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Navigator.pop(context); //关闭弹框，播放输入视频地址
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},
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),
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preBtn,
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nextBtn,
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],
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),
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SizedBox(height: 35),
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],
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),
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),
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),
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],
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),
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),
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),
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onWillPop: () {
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// 屏蔽点击返回键的操作
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//player.pause();
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Navigator.pop(context);
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},
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);
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}
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}
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