我有一个Spinner,但我还希望Spinner中的某些文本与组件无关。因此,例如,如果您正在执行保存操作,则微调器将显示:...正在保存。但例如,如果您执行搜索操作。微调器将显示:..processing等。
我将其作为微调组件:
<div *ngIf="(isLoading | async)" class="overlay">
<div>
<mat-progress-spinner class="spinner" [color]="color" [mode]="mode" [value]="value"> </mat-progress-spinner>
<div style="position:relative; top: -60px; left: 30px;">{{message}}</div>
</div>
</div>
和ts脚本:
export class LoaderComponent {
color = 'primary';
mode = 'indeterminate';
value = 50;
message = 'Hello there';
isLoading: Subject<boolean> = this.loaderService.loaderState;
constructor(private loaderService: LoaderService) {}
}
然后例如将微调器加载到以下组件中:listComponent
<app-loader ></app-loader>
所以我看到了微调器,但看不到消息。
那么我需要改进什么才能使文本也显示出来?
以及如何动态制作文字?这样您就可以在其中输入任何短信了?
谢谢
我现在这样子:
<div *ngIf="(isLoading | async)" class="overlay">
<div>
<mat-progress-spinner class="spinner" [color]="color" [mode]="mode" [value]="value"> </mat-progress-spinner>
<div style="position:absolute; top: -60px; left: 30px;">{{message}}</div>
</div>
</div>
export class LoaderComponent {
color = 'primary';
mode = 'indeterminate';
value = 50;
@Input()
message = 'Hello there';
isLoading: Subject<boolean> = this.loaderService.loaderState;
constructor(private loaderService: LoaderService) {}
}
这是CSS:
.overlay {
position:fixed;
display:block;
width:100%;
height:100%;
top:0;
left:0;
background-color:rgba(74,74,74,.8);
z-index:99999;
}
.spinner {
margin:auto;
position:absolute;
top:50%;
left:50%;
transform: translate(-50%,-50%);
}
答案 0 :(得分:1)
您可以在此StackBlitz Link
中找到工作演示您必须使用Behavior Subject
和service
...
您的app.component.html是..
<mat-toolbar color="primary">Spinner Demo</mat-toolbar>
<div style="margin:1em">
<button style="margin:1rem" mat-raised-button color="primary" (click)="spinner('search')">Search</button>
<button mat-raised-button color="primary" (click)="spinner('Send')">Send</button>
<button style="margin:1rem" mat-raised-button color="primary" (click)="spinner('Save')">Save</button>
</div>
<app-search-output ></app-search-output>
您的app.component.ts是...
export class AppComponent {
constructor( private serachService: SearchService){
}
spinner(term){
this.serachService.sendData(term);
}
ngOnInit(){
}
}
您可以像这样使用behaviorSubject
的服务...
export class SearchService {
searchData$: BehaviorSubject<object[]> = new BehaviorSubject<object[]>([{}]);
constructor() { }
sendData(term){
this.searchData$.next(term)
}
getData(){
return this.searchData$.asObservable();
}
}
您的微调框组件HTML是...
<div style="margin:2em auto; padding:1rem; box-shadow: 1px 2px 7px red; width:50vw">
<span style="margin:1em; padding:1rem">{{bookData$ |async |json}}</span>
<mat-spinner style="margin:1em" color="warn" ></mat-spinner>
</div>
您的spinner.component.ts是...
export class SearchOutputComponent implements OnInit {
bookData$;
constructor(private searchService: SearchService) { }
ngOnInit() {
this.bookData$ = this.searchService.getData();
}
}
答案 1 :(得分:0)
您可以将文本值作为@Input
传递到组件,并按以下方式使用组件
我相信由于CSS问题,您无法看到它。尝试使文本为position:absolute
。
<div *ngIf="(isLoading | async)" class="overlay">
<div>
<mat-progress-spinner class="spinner" [color]="color" [mode]="mode" [value]="value"> </mat-progress-spinner>
<div style="position:absolute; top: -60px; left: 30px;">{{message}}</div>
</div>
</div>
要进一步调试,请创建一个堆栈闪电弹。
<app-loader [message] = "Processing"></app-loader>
微调组件
import { Component, Input, OnInit } from '@angular/core';
export class LoaderComponent {
color = 'primary';
mode = 'indeterminate';
value = 50;
@Input()
message = 'Hello there'; // Default text will be Hello there but if you pass anything as stated above then it will be replaced.
isLoading: Subject<boolean> = this.loaderService.loaderState;
constructor(private loaderService: LoaderService) {}
}
答案 2 :(得分:0)
尝试在您的html文件中将样式位置更改为相对位置,即可使用:
HTML文件
<div *ngIf="(isLoading | async)" class="overlay">
<div>
<mat-progress-spinner class="spinner" [color]="color" [mode]="mode" [value]="value"> </mat-progress-spinner>
<div style="position:relative; top: -60px; left: 30px;">{{message}}
</div>
</div>
</div>
TS文件
export class ProgressSpinnerOverviewExample {
color = 'primary';
mode = 'indeterminate';
value = 50;
@Input()
message = 'Hello';
isLoading = true;
constructor() {}
}