angular高仿微信聊天界面|NG2聊天IM社交|angular仿微信表情输入框

最近一直在学习angular技术，一顿研究下来发现并没想象的困难，不过倒是采坑了不少，后面通过网络及社区都解决了。之前就有使用vue.js react做过一些项目实战。今天要给大家分享的是angular聊天室案例。

项目简述：

使用angular8+angular-cli+angular-router+ngrx/store+rxjs+webpack+node+wcPop等技术开发的高仿微信界面angular版聊天室实例项目，实现了下拉刷新、聊天消息右键菜单、发送消息、表情(动图)，图片、视频预览，红包打赏等功能。

  

技术实现：

• MVVM框架：angular8.0 / @angular/cli
• 状态管理：@ngrx/store / rxjs
• 地址路由：@angular/router
• 弹窗组件：wcPop
• 打包工具：webpack 2.0
• 图片预览：previewImage
• 轮播滑动：swiper

app主页面模板

整体采用flex布局，顶部/底部导航条是自定义组件，作为公共部分引入即可。

  

  

  

  

  

  

angular页面路由地址配置：

Auth为判断是否登录拦截，通过NG提供的canActivate方法进行页面验证

/*
 *  angular/router路由配置
 */

import { NgModule } from '@angular/core'
import { Routes, RouterModule } from '@angular/router'

// 引入路由验证
import { Auth } from '../views/auth/auth'

// 引入页面组件
import { NotFoundComponent } from '../components/404'
import { LoginComponent } from '../views/auth/login'
import { RegisterComponent } from '../views/auth/register'
import { IndexComponent } from '../views/index'
import { ContactComponent } from '../views/contact'
import { UinfoComponent } from '../views/contact/uinfo'
import { UcenterComponent } from '../views/ucenter'
import { GroupChatComponent } from '../views/chat/group-chat'
import { GroupInfoComponent } from '../views/chat/group-info'
import { SingleChatComponent } from '../views/chat/single-chat'


export const routes: Routes = [
  {
    path: '', redirectTo: 'index', pathMatch: 'full',
    data: { showHeader: true, showTabBar: true },
  },

  // 登录、注册
  {
    path: 'login', component: LoginComponent,
  },
  {
    path: 'register', component: RegisterComponent,
  },

  // 首页、联系人、我
  {
    path: 'index', component: IndexComponent, canActivate: [Auth],
    data: { showHeader: true, showTabBar: true },
  },
  {
    path: 'contact', component: ContactComponent, canActivate: [Auth],
    data: { showHeader: true, showTabBar: true },
  },
  {
    path: 'contact/uinfo', component: UinfoComponent
  },
  {
    path: 'ucenter', component: UcenterComponent, canActivate: [Auth],
    data: { showHeader: false, showTabBar: true },
  },

  // 聊天页面
  {
    path: 'chat/group-chat', component: GroupChatComponent, canActivate: [Auth]
  },
  {
    path: 'chat/single-chat', component: SingleChatComponent, canActivate: [Auth]
  },
  {
    path: 'chat/group-info', component: GroupInfoComponent, canActivate: [Auth]
  },

  // 404
  {
    path: '**', component: NotFoundComponent,
  },

  // ...
];

@NgModule({
  // imports: [RouterModule.forRoot(routes)],
  imports: [RouterModule.forRoot(routes, { useHash: true })],  //开启hash模式
  exports: [RouterModule],
  providers: [Auth]
})
export class AppRoutingModule {}

export class Auth implements CanActivate{
    constructor(private router: Router){}

    canActivate(){
        let that = this
        // 验证token
        const token: boolean = window.sessionStorage.getItem('token') ? true : false

        if(!token){
            // 未登录授权
            /*
            wcPop({
                content: '还未登录授权！', anim: 'shake', style: 'background:#e03b30;color:#fff;', time: 2,
                end: function () {
                    that.router.navigate(['/login']);
                }
            });
            */
            that.router.navigate(['/login']);
        }
        return token
    }
}

angular页面状态管理：

不同于vue通过vuex进行状态管理，react通过react-redux/redux进行状态管理，而angular则通过@ngrx/store进行状态管理

登录、注册模块：

项目中使用的弹窗则是自己开发的 wcPop 弹出框插件， 功能效果还ok~~， 支持多种参数配置，内置多种效果，具体的可以去看看这篇文章介绍? https://www.cnblogs.com/xiaoyan2017/p/8695783.html

export class LoginComponent implements OnInit {
    private formField = {
        tel: '',
        pwd: ''
    }

    handleSubmit(){
        let that = this

        if(!this.formField.tel){
            wcPop({ content: '手机号不能为空！', style: 'background:#eb5a5c;color:#fff;', time: 2 });
        }else if(!checkTel(this.formField.tel)){
            wcPop({ content: '手机号格式不正确！', style: 'background:#eb5a5c;color:#fff;', time: 2 });
        }else if(!this.formField.pwd){
            wcPop({ content: '密码不能为空！', style: 'background:#eb5a5c;color:#fff;', time: 2 });
        }else{
            this.store.dispatch(new actions.setToken(getToken(64)))
            this.store.dispatch(new actions.setUser(this.formField.tel))

            wcPop({
                content: '登录成功，跳转中...', style: 'background:#378fe7;color:#fff;', time: 2, shadeClose: false,
                end: function () {
                    that.router.navigate(['/index'])
                }
            });
        }
    }
}

编辑器光标处理：

//格式化标签
function surrounds() {
    setTimeout(function () { //chrome
        var sel = window.getSelection();
        var anchorNode = sel.anchorNode;
        if (!anchorNode) return;
        if (sel.anchorNode === $(".J__wcEditor")[0] ||
            (sel.anchorNode.nodeType === 3 && sel.anchorNode.parentNode === $(".J__wcEditor")[0])) {

            var range = sel.getRangeAt(0);
            var p = document.createElement("p");
            range.surroundContents(p);
            range.selectNodeContents(p);
            range.insertNode(document.createElement("br")); //chrome
            sel.collapse(p, 0);

            (function clearBr() {
                var elems = [].slice.call($(".J__wcEditor")[0].children);
                for (var i = 0, len = elems.length; i < len; i++) {
                    var el = elems[i];
                    if (el.tagName.toLowerCase() == "br") {
                        $(".J__wcEditor")[0].removeChild(el);
                    }
                }
                elems.length = 0;
            })();
        }
    }, 10);
}

//每次输入完，定义最后光标位置
var _lastRange = null, _sel = window.getSelection && window.getSelection();
var _rng = {
    getRange: function () {
        if (_sel && _sel.rangeCount > 0) {
            return _sel.getRangeAt(0);
        }
    },
    addRange: function () {
        if (_lastRange) {
            _sel.removeAllRanges();
            _sel.addRange(_lastRange);
        }
    }
}

//编辑器是否为空，正则匹配，过滤空格、回车
function isEmpty() {
    // var html = $editor.html();
    var html = $(".J__wcEditor").html();
    html = html.replace(//ig, "\r\n");
    html = html.replace(/<[^img].*?>/ig, "");
    html = html.replace(/ /ig, "");
    return html.replace(/\r\n|\n|\r/, "").replace(/(?:^[ \t\n\r]+)|(?:[ \t\n\r]+$)/g, "") == "";
}

好了，以上就是今天的分享，希望以后能给大家分享更多知识。希望能喜欢??

附上最近开发的项目实例 ~~~
vue聊天web端：https://blog.csdn.net/yanxinyun1990/article/details/89735778
react聊天室：https://blog.csdn.net/yanxinyun1990/article/details/93230368