Angular 如何在ng2标签输入中使用标签背景颜色的自定义样式组件?
我如何在ng2标签输入插件中为标签添加背景色,我搜索了它,他们说我们需要使用自定义组件进行样式,我添加了,但找不到触发,我正在使用这个网站。有人能帮我吗 video.component.ts文件Angular 如何在ng2标签输入中使用标签背景颜色的自定义样式组件?,angular,angular2-forms,angular2-directives,angular2-custom-component,Angular,Angular2 Forms,Angular2 Directives,Angular2 Custom Component,我如何在ng2标签输入插件中为标签添加背景色,我搜索了它,他们说我们需要使用自定义组件进行样式,我添加了,但找不到触发,我正在使用这个网站。有人能帮我吗 video.component.ts文件 import { Component, forwardRef } from '@angular/core'; import { TagInputComponent } from 'ng2-tag-input'; import { NG_VALUE_ACCESSOR } from '@angular/fo
import { Component, forwardRef } from '@angular/core';
import { TagInputComponent } from 'ng2-tag-input';
import { NG_VALUE_ACCESSOR } from '@angular/forms';
@Component({
selector: 'custom-tag-input',
providers: [{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => videoComponent ),
multi: true
}],
template:`<tag-input [ngModel]="['Typescript', 'Angular 2']"></tag-input>`,
styleUrls: [],
animations: [
trigger('flyInOut', [
state('in', style({transform: 'translateX(0)'})),
transition(':enter', [
animate(200, keyframes([
style({opacity: 0, offset: 0}),
style({opacity: 0.5, offset: 0.3}),
style({opacity: 1, offset: 1.0})
]))
]),
transition(':leave', [
animate(150, keyframes([
style({opacity: 1, transform: 'translateX(0)', offset: 0}),
style({opacity: 1, transform: 'translateX(-15px)', offset: 0.7}),
style({opacity: 0, transform: 'translateX(100%)', offset: 1.0})
]))
])
])
]
})
export class videoComponent extends TagInputComponent{
constructor(){ }
public options = {
readonly: undefined,
placeholder: 'Add a tag'
};
public onAdd(item) {
console.log(item + ' added');
}
public onRemove(item) {
console.log(item + ' removed');
}
public onSelect(item) {
console.log(item + ' selected');
}
public onFocus(item) {
console.log('input focused: current value is ' + item);
}
public onBlur(item) {
console.log('input blurred: current value is ' + item);
}
public transform(item: string): string {
return `@${item}`;
}
private startsWithAt(control: FormControl) {
if (control.value.charAt(0) !== '@') {
return {
'startsWithAt@': true
};
}
return null;
}
private endsWith$(control: FormControl) {
if (control.value.charAt(control.value.length - 1) !== '$') {
return {
'endsWith$': true
};
}
return null;
}
public validators = [this.startsWithAt, this.endsWith$];
public errorMessages = {
'startsWithAt@': 'Your items need to start with "@"',
'endsWith$': 'Your items need to end with "$"'
};
}
您需要使用父组件的样式来覆盖
标记输入
组件的样式。您需要使用/deep/
关键字,它将告诉Angular使子级继承CSS的指定部分。有时您可能需要使用!重要信息
关键字以确保值将被覆盖
您需要在要修改其样式的组件中找到相应的css类
例如:
/deep/ .example-style-which-can-be-used-by-children {
background-color: red !important;
}
查看标记输入的SCS,并以父样式创建相应的类
/deep/ .example-style-which-can-be-used-by-children {
background-color: red !important;
}