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import 'dart:convert';
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import 'dart:developer' as developer;
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import 'dart:io';
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import 'dart:math';
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import 'package:camera/camera.dart';
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import 'package:convert/convert.dart';
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import 'package:crypto/crypto.dart' as crypto;
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import 'package:device_info/device_info.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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//import '../my_wechat_assets_picker_fix/my_asset_picker_1.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import 'package:hyzp_ybqx/provider/player_region.dart';
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import 'UserInfo.dart';
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////////////////////////////////////////////
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// begin 统一的全局区县信息
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// 1、修改手机桌面的App图标文本
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// R:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\AndroidManifest.xml
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// android:label="宜宾市翠屏黑烟抓拍"
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// 2、修改App的android启动图片
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// (1)、分别制作并拷贝不同分辨率的图片文件hyzp_ybqx_cuipingqu_launche.png到：下面目录
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\mipmap-hdpi\
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\mipmap-mdpi\
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\mipmap-xhdpi\
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\mipmap-xxhdpi\
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\mipmap-xxxhdpi\
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// (2)、然后修改文件
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// R:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\android\app\src\main\res\drawable\launch_background.xml
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// android:src="@mipmap/hyzp_yibin_launche" />
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// android:src="@mipmap/hyzp_ybqx_cuipingqu_launche" />
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// 3、App的Flutter启动图片
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// (1)、拷贝 750 * 1334 的图片文件到：
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// r:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\assets\images\hyzp_ybqx_cuipingqu_launche.png
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// (2)、然后修改文件
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// R:\FlutterProject\FlutterProject51-hyzp_ybqx\hyzp_ybqx\lib\main.dart
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// child: new Image.asset('assets/images/hyzp_ybqx_cuipingqu_launche.png'),
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// child: Image.asset('assets/images/hyzp_ybqx_cuipingqu_launche.png', fit: BoxFit.cover),
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// 4、文本信息
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// (1)、宜宾市
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// String service_tel = '\n服务热线：187-8467-8300';
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// String yibin_QuXian = '宜宾';
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// String copyright_info = '© 宜宾市生态环境局 四川省踏石科技有限公司 版权所有' + service_tel;
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// String copyright_info_PinYin = 'YIBIN BLACK SMOKE CAR CAPTURE SYSTEM';
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// (2)、翠屏区
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String service_tel = '';
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String yibin_QuXian = '宜宾市翠屏';
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String copyright_info = '© 宜宾市翠屏生态环境局 版权所有' + service_tel;
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String copyright_info_PinYin = 'YIBIN CUIPING BLACK SMOKE CAR CAPTURE SYSTEM';
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// end 统一的全局版权信息
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////////////////////////////////////////////
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//LED字幕信息
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//String g_ledMessage = '绿水青山就是金山银山 宜宾市翠屏生态环境局宣。';
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// 是否已经调用 FlutterDownloader.initialize(debug: true)
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bool bFlutterDownloader_initialize = false;
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bool bNewVer = false; //是否发现新版本
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//处理延时登录，判断从网络获取三种统计数据是否完成
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bool bMayLogin = false;
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//处理延时登录，判断是否已经点击登录按钮
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bool bPreLoading = false;
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//处理延时登录，判断用户名登录是否验证通过
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bool bLoginVerify = false;
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bool bHasMore = true;
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//part library
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//dart中，通过使用part、part of、library来实现拆分库，这样，就可以将一个庞大的库拆分成各种小库，只要引用主库即可
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//点位总数
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int dwSum = -1;
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Size sizeWindowPhysicalSize;
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//String dateAppCompile = '2020.12.30'; //1.0.1+1
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//String dateAppCompile = '2021.02.20'; //1.2.5+1
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//String dateAppCompile = '2021.03.18'; //1.2.6+1
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//String dateAppCompile = '2021.05.18'; //1.2.7
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List<String> g_list = [];
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//正在获取点位视频标志，禁止重入
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bool getingDwVideo = false;
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int getCount = 1; //获取点位视频地址尝试次数
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int getSumTime = 0; //获取点位视频地址耗时（秒）
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int getingIndex = -1; //正在获取视频的点位的索引号
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String getingDwmc = ''; //正在获取视频的点位名称
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String urlnew =
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"http://www.yibinu.edu.cn/__local/5/35/DF/264049B7E978EEE2F5849688986_05D4A6FE_152CDB8C.mp4?e=.mp4";
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bool isVideoUrl(String url, {bool showToast = false}) {
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print('url = $url');
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String prefix = url.substring(0, 4);
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List list = ['http', 'rtmp', 'rstp'];
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for (String item in list) {
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if (prefix == item) {
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return true;
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}
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}
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if (showToast) {
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Fluttertoast.showToast(
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msg: '获取视频地址失败',
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toastLength: Toast.LENGTH_SHORT,
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gravity: ToastGravity.CENTER,
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);
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}
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return false;
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}
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final TextEditingController myController = TextEditingController();
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bool Playing = false; //禁止同时启动两次播放器
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//final FijkPlayer player = FijkPlayer();
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int g_iIndex = 0;
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PlayerRegionProvide playerRegionProvide;
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Future<void> sysPop() async {
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// currentPos = player.currentPos.inMilliseconds; //seekto方法的参数是毫秒
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// await writeCurrentPosFile();
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// await player.stop();
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await SystemChannels.platform.invokeMethod('SystemNavigator.pop');
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}
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//人脸注册和人脸识别登录成功标志
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int faceReg = -1; //1 成功，0 失败，-1 处理中
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int faceLogin = -1; //1 成功，0 失败，-1 处理中
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//人脸注册时所需用户ID
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int faceRegUserID = -1; //人脸注册时所需用户ID，-1 非法
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List<CameraDescription> cameras;
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UserInfo g_userInfo = UserInfo(mapUserInfoRet: {
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"ret": 200,
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"data": {
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"is_login": true,
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"user_id": 1,
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"token": "B93EC91FA2FE293B7077162D4527FC4BB228CD6C0A4F24A882B9A8BBE6C3FB47"
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},
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"msg": ""
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});
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Future<Map> getMapFromJson(var response) async {
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String _str = json.encode(response);
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Map _map = json.decode(_str);
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return _map;
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}
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// Future<void> getVideoList(BuildContext context) async {
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// List<AssetEntity> assets = <AssetEntity>[];
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// return await MyAssetPicker.pickAssets(
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// context,
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// maxAssets: 1,
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// selectedAssets: assets,
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// requestType: RequestType.video,
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// );
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// }
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Future<String> getAndroidId() async {
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DeviceInfoPlugin deviceInfo = DeviceInfoPlugin();
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AndroidDeviceInfo androidInfo = await deviceInfo.androidInfo;
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//print('每个手机唯一的设备号：${androidInfo.androidId}'); // e.g. "Moto G (4)"
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g_userInfo.thisAndroidId = androidInfo.androidId;
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return g_userInfo.thisAndroidId;
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}
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// void playOrPause() {
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// playerRegionProvide.changePlayerState(bPlaying);
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//
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// if (bPlaying) {
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// player.start();
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// } else {
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// player.pause();
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// }
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//
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// Storage.setString('bFirstPlay', bFirstPlay ? 'true' : 'false');
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// Storage.setString('bPlaying', bPlaying ? 'true' : 'false');
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//
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// //updateFile();
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// }
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//
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// void playAndPause() {
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// if (player.state == FijkState.started) {
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// bPlaying = false;
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// player.pause();
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// } else if (player.state == FijkState.paused) {
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// bPlaying = true;
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// player.start();
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// }
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// //setState(() {});
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// playerRegionProvide.changePlayerState(bPlaying);
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// Storage.setString('bPlaying', bPlaying ? 'true' : 'false');
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// }
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Alignment getAlignment(Offset offset, Size size) {
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// final double centerX = offset.dx / 2.0;
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// final double centerY = offset.dy / 2.0;
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//offset.dx = centerX + alignment.x * centerX;
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//double alignmentX = (0.0 == centerX) ? 0.0 : ((offset.dx - centerX) / centerX);
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double alignmentX = (offset.dx / size.width).clamp(-1.0, 1.0);
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//offset.dy = centerY + alignment.y * centerY;
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//double alignmentY = (0.0 == centerY) ? 0.0 : ((offset.dy - centerY) / centerY);
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double alignmentY = (offset.dy / size.height).clamp(-1.0, 1.0);
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// print('offset.dx = ${offset.dx}, offset.dy = ${offset.dy}');
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print('Alignment.X = $alignmentX, Alignment.Y = $alignmentY');
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return Alignment(alignmentX, alignmentY);
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}
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//flutter （dart）生成N位随机数
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//https://blog.csdn.net/qq_36071410/article/details/101268640
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// 庄童 2019-09-24 10:24:58 10271 收藏
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String RandomBit(int len) {
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String scopeF = '123456789'; //首位
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String scopeC = '0123456789'; //中间
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String result = '';
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for (int i = 0; i < len; i++) {
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if (i == 0) {
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result = scopeF[Random().nextInt(scopeF.length)];
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} else {
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result = result + scopeC[Random().nextInt(scopeC.length)];
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}
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}
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return result;
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}
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// sign=md5(ijddvzgEGaxbzsbmCtpdohxHyrAArwJB1003)
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// =3967eaebec0eed0642a1d395ac9293dd
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String APPkey = 'ijddvzgEGaxbzsbmCtpdohxHyrAArwJB';
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//Flutter对字符串进行MD5运算 发表于 2019-03-26 更新于 2020-12-04 分类于 Flutter 阅读次
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String GenerateMd5(String str) {
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var content = new Utf8Encoder().convert(str);
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var md5 = crypto.md5;
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var digest = md5.convert(content);
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return hex.encode(digest.bytes);
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}
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//加载中的圈圈
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Widget getMoreWidget2({
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Color color = Colors.white,
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String text = '加载中...',
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double size = 30.0,
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double strokeWidth = 3.0,
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FontWeight fontWeight,
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double edge = 10.0,
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double height = 34,
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}) {
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return Center(
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child: Padding(
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padding: EdgeInsets.all(edge),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: <Widget>[
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SizedBox(
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height: size,
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width: size,
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child: CircularProgressIndicator(
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strokeWidth: strokeWidth,
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valueColor: AlwaysStoppedAnimation<Color>(color),
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),
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),
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SizedBox(
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height: ScreenUtil().setHeight(height),
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),
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Text(
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text,
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: size, // 文字大小
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color: color,
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fontWeight: fontWeight, // 文字颜色
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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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//加载中的圈圈
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Widget getMoreWidget({
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String text = '加载中...',
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Color color = Colors.white,
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double size = 30.0,
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double strokeWidth = 3.0,
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TextAlign textAlign = TextAlign.left,
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}) {
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return Center(
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child: Padding(
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padding: EdgeInsets.all(10.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: <Widget>[
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SizedBox(
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height: size,
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width: size,
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child: CircularProgressIndicator(
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strokeWidth: strokeWidth,
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valueColor: AlwaysStoppedAnimation<Color>(color),
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),
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),
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SizedBox(
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height: 10,
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),
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Text(
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text,
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textAlign: textAlign,
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style: TextStyle(
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fontSize: size, // 文字大小
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color: color,
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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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//自定义带说明图标按钮函数。点击说明文字有反应
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Widget getIconAndTextButton(
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{IconData iconData, Color iconColor = Colors.black, var onPress = null}) {
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return Container(
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width: 50,
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height: 50,
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alignment: const Alignment(0, 0),
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child: FlatButton(
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padding: EdgeInsets.all(0),
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onPressed: onPress,
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//color: Colors.blue,
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color: Colors.transparent,
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//解决报错问题：FittedBox ← Expanded ← ConstrainedBox ← Container ← Center ← Padding ←
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// Container ← IconTheme ← Builder ← _PointerListener
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child: ConstrainedBox(
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constraints: BoxConstraints(
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maxHeight: 36, //最大高度
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maxWidth: 36, //最大宽度
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),
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child: Padding(
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padding: EdgeInsets.only(top: 1),
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child: Icon(iconData, color: iconColor, size: 32),
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// child: Image.asset(
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// 'assets/images/left_arrow.png',
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// fit: BoxFit.fitWidth,
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// color: iconColor,
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// //fit: BoxFit.cover,
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// ),
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),
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// child: Row(
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// mainAxisAlignment: MainAxisAlignment.center,
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// crossAxisAlignment: CrossAxisAlignment.end,
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// children: [
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// Image.asset('assets/images/left_arrow.png', fit: BoxFit.cover),
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// // Expanded(
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// // //child: Icon(iconData, color: iconColor, size: 24),
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// // child: Image.asset('assets/images/left_arrow.png', fit: BoxFit.cover),
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// // ),
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// ],
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// ),
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),
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//The offending Expanded is currently placed inside a ConstrainedBox widget.
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//The ownership chain for the RenderObject that received the incompatible parent data was:
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// FittedBox ← Expanded ← ConstrainedBox ← Container ← Center ← Padding ← Container ← IconTheme ←
|
|
|
//Builder ← _PointerListener
|
|
|
|
|
|
//The ParentDataWidget Expanded(flex: 1) wants to apply ParentData of type FlexParentData to a
|
|
|
//RenderObject, which has been set up to accept ParentData of incompatible type ParentData.
|
|
|
//Usually, this means that the Expanded widget has the wrong ancestor RenderObjectWidget. Typically,
|
|
|
//Expanded widgets are placed directly inside Flex widgets.
|
|
|
//The offending Expanded is currently placed inside a FittedBox widget.
|
|
|
//The ownership chain for the RenderObject that received the incompatible parent data was:
|
|
|
// ConstrainedBox ← Container ← Expanded ← FittedBox ← Center ← Padding ← Container ← IconTheme ←
|
|
|
//Builder ← _PointerListener ← ⋯
|
|
|
// child: ConstrainedBox(
|
|
|
// constraints: BoxConstraints(
|
|
|
// maxHeight: 20, //最大高度
|
|
|
// maxWidth: 28, //最大宽度
|
|
|
// ),
|
|
|
// child: Container(
|
|
|
// child: Expanded(
|
|
|
// child: new Icon(iconData, color: iconColor),
|
|
|
// ),
|
|
|
// ),
|
|
|
// ),
|
|
|
|
|
|
// child: ConstrainedBox(
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|
|
// constraints: BoxConstraints(
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|
|
// maxHeight: 30, //最大高度
|
|
|
// maxWidth: 38, //最大宽度
|
|
|
// minWidth: 38, //最大宽度
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|
|
// ),
|
|
|
// child: Row(
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|
|
// crossAxisAlignment: CrossAxisAlignment.start,
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|
|
// children: [
|
|
|
// Expanded(
|
|
|
// child: Icon(iconData, color: iconColor, size: 24),
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|
|
// ),
|
|
|
// ],
|
|
|
// ),
|
|
|
// ),
|
|
|
|
|
|
// child: Container(
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|
|
// width: 28,
|
|
|
// height: 20,
|
|
|
// child: Expanded(
|
|
|
// child: new FittedBox(
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|
|
// fit: BoxFit.fill,
|
|
|
// child: new Icon(iconData, color: iconColor),
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|
|
// ),
|
|
|
// ),
|
|
|
// ),
|
|
|
|
|
|
// child: FittedBox(
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|
|
// fit: BoxFit.fitWidth,
|
|
|
// alignment: Alignment.topLeft,
|
|
|
// child: Container(
|
|
|
// width: 28,
|
|
|
// height: 20,
|
|
|
// child: Expanded(
|
|
|
// child: new FittedBox(
|
|
|
// fit: BoxFit.fill,
|
|
|
// child: new Icon(iconData, color: iconColor),
|
|
|
// ),
|
|
|
// ),
|
|
|
// ),
|
|
|
// ),
|
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),
|
|
|
);
|
|
|
}
|
|
|
|
|
|
///获取缩进空白符
|
|
|
String getDeepSpace(int deep) {
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|
|
var tab = StringBuffer();
|
|
|
for (int i = 0; i < deep; i++) {
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|
|
tab.write("\t");
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|
|
}
|
|
|
return tab.toString();
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|
|
}
|
|
|
|
|
|
// List map2list(Map _map) {
|
|
|
// List _list = [];
|
|
|
// _list = List.generate(listContacts2[widget.contactIndex].length, (index) {
|
|
|
// String key = listContacts2[widget.contactIndex].keys.elementAt(index);
|
|
|
// //return TextEditingController(text: listContacts2[widget.contactIndex][key]);
|
|
|
// return TextEditingController(text: getUserText3(widget.contactIndex, key));
|
|
|
// });
|
|
|
//
|
|
|
// }
|
|
|
|
|
|
/// [object] 解析的对象
|
|
|
/// [deep] 递归的深度，用来获取缩进的空白长度
|
|
|
/// [isObject] 用来区分当前map或list是不是来自某个字段，则不用显示缩进。单纯的map或list需要添加缩进
|
|
|
String json_print(dynamic object, int deep, {bool isObject = false}) {
|
|
|
var buffer = StringBuffer();
|
|
|
var nextDeep = deep + 1;
|
|
|
if (object is Map) {
|
|
|
var list = object.keys.toList();
|
|
|
if (!isObject) {
|
|
|
//如果map来自某个字段，则不需要显示缩进
|
|
|
buffer.write("${getDeepSpace(deep)}");
|
|
|
}
|
|
|
buffer.write("{");
|
|
|
if (list.isEmpty) {
|
|
|
//当map为空，直接返回‘}’
|
|
|
buffer.write("}");
|
|
|
} else {
|
|
|
buffer.write("\n");
|
|
|
for (int i = 0; i < list.length; i++) {
|
|
|
buffer.write("${getDeepSpace(nextDeep)}\"${list[i]}\":");
|
|
|
buffer.write(json_print(object[list[i]], nextDeep, isObject: true));
|
|
|
if (i < list.length - 1) {
|
|
|
buffer.write(",");
|
|
|
buffer.write("\n");
|
|
|
}
|
|
|
}
|
|
|
buffer.write("\n");
|
|
|
buffer.write("${getDeepSpace(deep)}}");
|
|
|
}
|
|
|
} else if (object is List) {
|
|
|
if (!isObject) {
|
|
|
//如果list来自某个字段，则不需要显示缩进
|
|
|
buffer.write("${getDeepSpace(deep)}");
|
|
|
}
|
|
|
buffer.write("[");
|
|
|
if (object.isEmpty) {
|
|
|
//当list为空，直接返回‘]’
|
|
|
buffer.write("]");
|
|
|
} else {
|
|
|
buffer.write("\n");
|
|
|
for (int i = 0; i < object.length; i++) {
|
|
|
buffer.write(json_print(object[i], nextDeep));
|
|
|
if (i < object.length - 1) {
|
|
|
buffer.write(",");
|
|
|
buffer.write("\n");
|
|
|
}
|
|
|
}
|
|
|
buffer.write("\n");
|
|
|
buffer.write("${getDeepSpace(deep)}]");
|
|
|
}
|
|
|
} else if (object is String) {
|
|
|
//为字符串时，需要添加双引号并返回当前内容
|
|
|
buffer.write("\"$object\"");
|
|
|
} else if (object is num || object is bool) {
|
|
|
//为数字或者布尔值时，返回当前内容
|
|
|
buffer.write(object);
|
|
|
} else {
|
|
|
//如果对象为空，则返回null字符串
|
|
|
buffer.write("null");
|
|
|
}
|
|
|
return buffer.toString();
|
|
|
}
|
|
|
|
|
|
//人脸识别和上传的图片，都需要转换为 Base64 格式的字符串提交
|
|
|
//通过图片路径将图片转换成 Base64 字符串
|
|
|
Future image2Base64(String imagePath) async {
|
|
|
File file = File(imagePath);
|
|
|
List<int> imageBytes = await file.readAsBytes();
|
|
|
String bs64 = base64Encode(imageBytes);
|
|
|
String ext = getFileExtension(imagePath);
|
|
|
print('imagePath = $imagePath, ext = $ext');
|
|
|
//String bs64Image = "data:image/png;base64," + bs64;
|
|
|
String bs64Image = "data:image/${ext};base64," + bs64;
|
|
|
return bs64Image;
|
|
|
}
|
|
|
|
|
|
//从字符路径 path 获取扩展名，不含点号
|
|
|
getFileExtension(String path) {
|
|
|
//return path.substring(path.lastIndexOf('.'));
|
|
|
//imagePath = /data/user/0/com.flutter.hyzp_ybqx/app_flutter/Pictures/flutter_test/1614662209478.jpg, ext = .jpg
|
|
|
return path.substring(path.lastIndexOf('.') + 1); //不含点号
|
|
|
}
|
|
|
|
|
|
//从字符路径 path 获取文件名(含扩展名)
|
|
|
getFileName(String path) {
|
|
|
//return path.substring(path.lastIndexOf('.'));
|
|
|
//imagePath = /data/user/0/com.flutter.hyzp_ybqx/app_flutter/Pictures/flutter_test/1614662209478.jpg, ext = .jpg
|
|
|
return path.substring(path.lastIndexOf('/') + 1); //不含点号
|
|
|
}
|
|
|
|
|
|
Widget getBtnSizeX({@required text, double width = 70.0, double height = 40.0, onPressedFun}) {
|
|
|
return Container(
|
|
|
color: Colors.white12, //onPressedFun为null时无效
|
|
|
width: width,
|
|
|
height: height,
|
|
|
child: RaisedButton(
|
|
|
padding: EdgeInsets.all(0),
|
|
|
textColor: Colors.black,
|
|
|
child: Text(text),
|
|
|
onPressed: onPressedFun,
|
|
|
),
|
|
|
);
|
|
|
}
|
|
|
|
|
|
//返回主页ashamp
|
|
|
// 博客园首页新随笔联系管理订阅订阅随笔 - 33 文章 - 0 评论 - 51 阅读 - 55018
|
|
|
// 在debug时使Flutter中的print打印json数据时更美观易读
|
|
|
// 为了避免deubg信息在生产环境打印,只在测试时打印,在main函数中,改变debugPrint的指向
|
|
|
//
|
|
|
// 复制代码
|
|
|
// main(){
|
|
|
// if (Api.isDebug) {
|
|
|
// debugPrint = (String message, {int wrapWidth}) {
|
|
|
// try {
|
|
|
// var object = json.decode(message);
|
|
|
// message = JsonEncoder.withIndent(' ').convert(object);
|
|
|
// } catch (e) {}
|
|
|
// printWrapped(message);
|
|
|
// };
|
|
|
// } else {
|
|
|
// debugPrint = (String message, {int wrapWidth}) {};
|
|
|
// }
|
|
|
// }
|
|
|
// 复制代码
|
|
|
// 将printWrapped方法放入工具类或你需要的地方
|
|
|
//
|
|
|
// void printWrapped(String text) {
|
|
|
// final pattern = new RegExp('.{1,800}'); // 800 is the size of each chunk
|
|
|
// pattern.allMatches(text).forEach((match) => developer.log(match.group(0)));
|
|
|
// }
|
|
|
// log方法需要引入
|
|
|
//
|
|
|
// import 'dart:developer' as developer;
|
|
|
//
|
|
|
|
|
|
//在debug时使 Flutter 中的 print 打印 json 数据时更美观易读
|
|
|
void jsonPrint(String message, {int len = 800}) {
|
|
|
//是否在生产环境
|
|
|
const bool isDebug = !const bool.fromEnvironment("dart.vm.product");
|
|
|
// if (!isDebug) {
|
|
|
// return;
|
|
|
// }
|
|
|
|
|
|
try {
|
|
|
var object = json.decode(message);
|
|
|
message = JsonEncoder.withIndent(' ').convert(object);
|
|
|
} catch (e) {
|
|
|
print('e = $e');
|
|
|
}
|
|
|
printWrapped(message);
|
|
|
}
|
|
|
|
|
|
// 打印长字符串
|
|
|
void printWrapped(String text, {int len = 800}) {
|
|
|
final pattern = RegExp('.{1,$len}'); // 800 is the size of each chunk
|
|
|
pattern.allMatches(text).forEach((match) => developer.log(match.group(0)));
|
|
|
}
|
|
|
|
|
|
//OK
|
|
|
void my_segmentPrint(String str, {int len = 800}) {
|
|
|
//是否在生产环境
|
|
|
const bool isDebug = !const bool.fromEnvironment("dart.vm.product");
|
|
|
if (!isDebug) {
|
|
|
return;
|
|
|
}
|
|
|
List list = strToList(str);
|
|
|
for (int i = 0; i < list.length; i++) {
|
|
|
print('${list[i]}');
|
|
|
}
|
|
|
}
|
|
|
|
|
|
//OK
|
|
|
List strToList(String str, {int len = 800}) {
|
|
|
List<String> strList = [];
|
|
|
if (str.length <= len) {
|
|
|
strList.add(str);
|
|
|
} else {
|
|
|
int splitCount = str.length ~/ len; //应该切割的次数
|
|
|
for (int i = 0; i < splitCount; i++) {
|
|
|
strList.add(str.substring(len * i, len * (i + 1)));
|
|
|
}
|
|
|
|
|
|
//处理最后一段
|
|
|
if (str.length % len != 0) {
|
|
|
strList.add(str.substring(len * splitCount));
|
|
|
}
|
|
|
}
|
|
|
print('strList:${strList.toString}');
|
|
|
return strList;
|
|
|
}
|
|
|
|
|
|
Widget getImageWidget() {
|
|
|
return Container(
|
|
|
alignment: Alignment(0, 0),
|
|
|
height: ScreenUtil().setHeight(346),
|
|
|
width: ScreenUtil().setWidth(942),
|
|
|
decoration: BoxDecoration(
|
|
|
image: DecorationImage(image: AssetImage('assets/images/装饰图片10.png'), fit: BoxFit.cover),
|
|
|
),
|
|
|
child: Column(
|
|
|
children: [
|
|
|
Container(
|
|
|
alignment: Alignment.centerLeft,
|
|
|
padding: EdgeInsets.only(top: ScreenUtil().setWidth(30), left: ScreenUtil().setWidth(55)),
|
|
|
child: Text('改善城市空气质量', style: TextStyle(fontSize: 17, color: Colors.white)),
|
|
|
),
|
|
|
Container(
|
|
|
alignment: Alignment.centerLeft,
|
|
|
padding: EdgeInsets.only(left: ScreenUtil().setWidth(55)),
|
|
|
child: Text('建设长江生态第一城',
|
|
|
style: TextStyle(
|
|
|
fontSize: 19,
|
|
|
color: Color.fromRGBO(49, 216, 123, 1),
|
|
|
fontWeight: FontWeight.bold)),
|
|
|
),
|
|
|
],
|
|
|
),
|
|
|
// child: Image.asset(
|
|
|
// 'assets/images/装饰图片10.png',
|
|
|
// fit: BoxFit.cover,
|
|
|
// ),
|
|
|
);
|
|
|
}
|
|
|
|
|
|
Widget getIconBtnSizeX(
|
|
|
{@required text,
|
|
|
width = 233,
|
|
|
height = 116,
|
|
|
onTop,
|
|
|
Color color = Colors.black,
|
|
|
double circular = 10,
|
|
|
double textSize = 18}) {
|
|
|
return InkWell(
|
|
|
onTap: onTop,
|
|
|
child: Container(
|
|
|
alignment: Alignment(0, 0),
|
|
|
margin: EdgeInsets.all(0),
|
|
|
padding: EdgeInsets.all(0),
|
|
|
width: ScreenUtil().setWidth(width),
|
|
|
height: ScreenUtil().setHeight(height),
|
|
|
decoration: BoxDecoration(color: color, borderRadius: BorderRadius.circular(circular)),
|
|
|
child: Row(
|
|
|
mainAxisAlignment: MainAxisAlignment.start,
|
|
|
children: [
|
|
|
SizedBox(width: ScreenUtil().setWidth(12)),
|
|
|
Icon(Icons.play_arrow, color: Colors.white, size: ScreenUtil().setWidth(56)),
|
|
|
Text(
|
|
|
text,
|
|
|
style: TextStyle(color: Colors.white, fontSize: textSize),
|
|
|
)
|
|
|
],
|
|
|
),
|
|
|
),
|
|
|
);
|
|
|
}
|