Angular 2,当用户单击另一个组件时更新组件
这就是我想要达到的目标。每当用户单击另一个Angular 2,当用户单击另一个组件时更新组件,angular,ecmascript-6,components,Angular,Ecmascript 6,Components,这就是我想要达到的目标。每当用户单击另一个组件时,我都会尝试更新组件中的值。看看我的代码 这是我的app.component.html文件 <div class="col-sm" *ngFor="let tabs of videoTabs"> <!-- this is where i want the user to click on --> <div class="tabs hvr-back-pulse">
组件时,我都会尝试更新组件中的值。看看我的代码
这是我的app.component.html
文件
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
/**
* Provides a Video object
*/
export class VideoTab {
constructor(
public image: string,
public description: string,
public title: string,
public videoSrc: string
) {}
}
videotab.model.ts
文件
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
/**
* Provides a Video object
*/
export class VideoTab {
constructor(
public image: string,
public description: string,
public title: string,
public videoSrc: string
) {}
}
这是我希望组件更新src属性上我的video标记中的值的地方
****已更新以使用video.JS********
<video id="background" class="video-js" loop controls preload="auto" width="100%" height="100%" poster="" data-setup="{}">
<source [src]="currentTab?.videoSrc" type='video/mp4'>
</video>
现在我的视频标签不在自己的组件中,它当前位于标签所在的app.component.html
文件中。谢谢你的帮助。我正在读一本关于如何开发Angular 2应用程序的书,所以这对我来说还是新鲜事。再次感谢所有的帮助
****更新****
当使用选项卡动态加载src
属性时,我从video.js获得以下错误消息
VIDEOJS:ERROR:(code:4 MEDIA\u ERR\u SRC\u NOT \u SUPPORTED)由于服务器或网络故障或格式不受支持,无法加载媒体。
当我在新选项卡中加载带有mp4文件的cloudfront链接时,一切都加载正常。感谢所有帮助您可以通过事件绑定拦截每个选项卡上的单击(…),然后将单击的选项卡保存到组件的属性currentTab中,然后使用[prop]=“…”进行属性绑定,以将当前选项卡恢复到视频标记的src中:
模板:
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse" (click)="setCurrentTab(tabs)">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
<video>
<source [src]="currentTab?.videoSrc">
</video>
您可以通过事件绑定拦截每个选项卡上的单击(…),然后将单击的选项卡保存到组件的属性currentTab中,然后使用[prop]=“…”进行属性绑定,以将当前选项卡恢复到视频标记的src中:
模板:
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse" (click)="setCurrentTab(tabs)">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
<video>
<source [src]="currentTab?.videoSrc">
</video>
在我的情况下。我使用@input绑定将视频文件从一个组件传输到此组件,其标题、描述与视频选项卡类似,我认为您的组件html视频标记中没有使用videojs。请检查下面的代码
更新:将js文件导入index.html并添加以下代码。它将动态更改videojsplayer的视频src
import {Component, ElementRef, OnInit, OnDestroy, Input} from '@angular/core';
import {SaveVideoFile} from '../../models/SaveVideoFile';
@Component({
selector: 'video-play',
templateUrl :'./play-video.html',
styleUrls: ['']
}
export class AppComponent implements AfterViewInit, OnInit, OnDestroy{
@Input() selectedVideo: SaveVideoFile; // getting video file from another component
currentTab: VideoTab;
videoUrl: string;
videoJSplayer: any;
constructor(){}
showVideo(video: SaveVideoFile) { // getting one selectedVideofile from array of videos when you click on related videos
console.log("videoComponent showVideo()");
this.selectedVideo = video; // assining the new video file to existing selectedVideo
this.videoUrl = this.selectedVideo.videoPath; // assining the new videoSrcUrl to exsting videoSrcUrl
this.videoUrl = 'http://vjs.zencdn.net/v/oceans.mp4';
this.videoPlayListSource(this.videoUrl);
}
videoPlayListSource(videosrc:string){
this.videoUrl = videosrc;
const self = this;
this.videoJSplayer.playlist([{ sources: [{ src: self.videoUrl,
type: 'video/mp4' }]}]);
}
ngOnInit(){
this.videoUrl = this.selectedVideo.videoPath; // setting the selectedVideo file src here
this.videoUrl = 'https://yanwsh.github.io/videojs-panorama/assets/shark.mp4';
this.videoJSplayer = videojs(document.getElementById('example_video_11'), {}, function() {
let player = this;
this.ready(function() {
this.bigPlayButton.hide();
this.play();
});
});
}
ngOnDestroy() {
console.log('Deinit - Destroyed Component')
this.videoJSplayer.dispose();
}
}
html:
<div>
<video id="example_video_11" class="video-js vjs-default-skin"
controls preload="auto" width="630" height="320"
data-setup='{"example_option":true}' [src]=videoUrl>
<source [src]=videoUrl type="video/mp4" />
</video>
</div>
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse" (click)="showVideo(tabs)">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
{{tabs.title}}
{{tabs.description}}
Plunker:在我的情况下。我正在使用@input绑定将视频文件从一个组件发送到此组件,其标题、描述与您的视频选项卡类似,我认为您的组件html视频标记中没有使用videojs。请检查下面的代码
更新:将js文件导入index.html并添加以下代码。它将动态更改videojsplayer的视频src
import {Component, ElementRef, OnInit, OnDestroy, Input} from '@angular/core';
import {SaveVideoFile} from '../../models/SaveVideoFile';
@Component({
selector: 'video-play',
templateUrl :'./play-video.html',
styleUrls: ['']
}
export class AppComponent implements AfterViewInit, OnInit, OnDestroy{
@Input() selectedVideo: SaveVideoFile; // getting video file from another component
currentTab: VideoTab;
videoUrl: string;
videoJSplayer: any;
constructor(){}
showVideo(video: SaveVideoFile) { // getting one selectedVideofile from array of videos when you click on related videos
console.log("videoComponent showVideo()");
this.selectedVideo = video; // assining the new video file to existing selectedVideo
this.videoUrl = this.selectedVideo.videoPath; // assining the new videoSrcUrl to exsting videoSrcUrl
this.videoUrl = 'http://vjs.zencdn.net/v/oceans.mp4';
this.videoPlayListSource(this.videoUrl);
}
videoPlayListSource(videosrc:string){
this.videoUrl = videosrc;
const self = this;
this.videoJSplayer.playlist([{ sources: [{ src: self.videoUrl,
type: 'video/mp4' }]}]);
}
ngOnInit(){
this.videoUrl = this.selectedVideo.videoPath; // setting the selectedVideo file src here
this.videoUrl = 'https://yanwsh.github.io/videojs-panorama/assets/shark.mp4';
this.videoJSplayer = videojs(document.getElementById('example_video_11'), {}, function() {
let player = this;
this.ready(function() {
this.bigPlayButton.hide();
this.play();
});
});
}
ngOnDestroy() {
console.log('Deinit - Destroyed Component')
this.videoJSplayer.dispose();
}
}
html:
<div>
<video id="example_video_11" class="video-js vjs-default-skin"
controls preload="auto" width="630" height="320"
data-setup='{"example_option":true}' [src]=videoUrl>
<source [src]=videoUrl type="video/mp4" />
</video>
</div>
<div class="col-sm" *ngFor="let tabs of videoTabs">
<!-- this is where i want the user to click on -->
<div class="tabs hvr-back-pulse" (click)="showVideo(tabs)">
<div class="row">
<div class="text-center col-sm-4">
<img src="{{ tabs.image }}" class="rounded-circle img-thumbnail">
</div>
<div class="col-sm-8">
<small>{{ tabs.title }}</small>
<p>{{ tabs.description }}</p>
</div>
</div>
</div>
<!-- eof click container -->
</div>
{{tabs.title}}
{{tabs.description}}
Plunker:由于您是Angular 2的新手,请允许我将您重定向到。我认为,一个完整的教程将帮助你在一个论坛上超过几个用户。真棒,谢谢!!自从我看完这本书后,就没看过文档。展望未来@Trichetrich如果你应该的话,这真是一座金矿。实际上,我在浏览器中锁定了教程选项卡,以便快速访问它!由于您是Angular 2的新手,请允许我将您重定向到。我认为,一个完整的教程将帮助你在一个论坛上超过几个用户。真棒,谢谢!!自从我看完这本书后,就没看过文档。展望未来@Trichetrich如果你应该的话,这真是一座金矿。实际上,我在浏览器中锁定了教程选项卡,以便快速访问它!获取以下错误消息时无法读取未定义的属性“videoSrc”
,这看起来很清楚,但我的OOP水平使我很难纠正这一错误。你能详细说明你的答案吗?我还不熟悉使用elvis算子(?)为防止在单击选项卡之前currentTab仍然未定义的情况下出现绑定错误,请不要忘记标记答案已解决您的问题获取以下错误消息无法读取未定义的属性“videoSrc”
,这看起来很清楚,但我的OOP水平使其难以更正。你能详细说明你的答案吗?angular 2我还是新手,它使用elvis运算符(?)来防止绑定错误,以防在单击选项卡之前currentTab仍然未定义Don’别忘了标记答案已解决您的问题使用我当前的实现,我可以根据我选择的选项卡动态更改我的视频标记中的src
属性,但是我的video.js播放器不会在我更改src后加载或播放视频。有我应该调用的方法吗?你知道吗?你能用videojs代码更新你的问题吗?您使用什么样的视频路径,如mp4或m3u8?如果有任何错误,请张贴。我认为src没有正确更新。你能在新标签中检查视频路径url吗?是否播放?是的,一切正常。我的cloudfront链接工作正常。在这里,你可以用我当前的实现检查你自己创建的Plunker,我可以根据我选择的选项卡动态更改我的video
标记中的src
属性,但是我的video.js播放器在我更改src后不会加载或播放视频。有我应该调用的方法吗?你知道吗?你能用videojs代码更新你的问题吗?您使用什么样的视频路径,如mp4或m3u8?如果有任何错误,请张贴。我认为src没有正确更新。你能在新标签中检查视频路径url吗?是否播放?是的,一切正常。我的cloudfront链接工作正常。您可以在这里查看您的