Angular動畫——路由動畫及高階動畫函數
阿新 • • 發佈：2019-02-11
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一、路由動畫
路由動畫需要在host元數據中指定觸發器。動畫註意不要過多，否則適得其反。
內容優先，引導用戶去註意到某個內容。動畫只是輔助手段。
定義一個進場動畫，一個離場動畫。
因為進場動畫和離場動畫用的特別頻繁，有一個別名叫:enter和:leave。
import { trigger, state, transition, style, animate} from ‘@angular/animations‘;
export const slideToRight = trigger(‘routeAnim‘,[
state(‘void‘,style({‘position
在project-list中使用路由動畫。
import { Component, OnInit , HostBinding } from "@angular/core";
import { MatDialog } from "@angular/material";
import { NewProjectComponent }
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在task-home中使用路由動畫。
import { Component, OnInit , HostBinding } from "@angular/core";
import { NewTaskComponent } from "../new-task/new-task.component";
import { MatDialog } from "@angular/material";
import { CopyTaskComponent } from "../copy-task/copy-task.component";
import { ConfirmDialogComponent } from "../../shared/confirm-dialog/confirm-dialog.component";
import { NewTaskListComponent } from "../new-task-list/new-task-list.component";
import {slideToRight} from ‘../../animate/router.animate‘;
@Component({
selector: "app-task-home",
templateUrl: "./task-home.component.html",
styleUrls: ["./task-home.component.scss"],
animations:[
slideToRight
]
})
export class TaskHomeComponent implements OnInit {
constructor(private dialog: MatDialog) {}
@HostBinding(‘@routeAnim‘) state;
ngOnInit() {}
launchNewTaskDialog() {
// this.dialog.open(NewTaskComponent);
const dialogRef = this.dialog.open(NewTaskComponent, {
data: { title: "新建任務" }
});
}
lauchCopyTaskDialog() {
const dialogRef = this.dialog.open(CopyTaskComponent, {
data: { lists: this.lists }
});
}
launchUpdateTaskDialog(task) {
const dialogRef = this.dialog.open(NewTaskComponent, {
data: { title: "修改任務", task: task }
});
}
launchConfirmDialog() {
const dialogRef = this.dialog.open(ConfirmDialogComponent, {
data: { title: "刪除任務列表", content: "您確定要刪除該任務列表嗎？" }
});
}
launchEditListDialog() {
const dialogRef = this.dialog.open(NewTaskListComponent, {
data: { title: "更改列表名稱" }
});
dialogRef.afterClosed().subscribe(result => console.log(result));
}
launchNewListDialog() {
const dialogRef = this.dialog.open(NewTaskListComponent, {
data: { title: "新建列表名稱" }
});
dialogRef.afterClosed().subscribe(result => console.log(result));
}
lists = [
{
id: 1,
name: "待辦",
tasks: [
{
id: 1,
desc: "任務一： 去星巴克買咖啡",
completed: true,
priority: 3,
owner: {
id: 1,
name: "張三",
avatar: "avatars:svg-11"
},
dueDate: new Date(),
reminder: new Date()
},
{
id: 2,
desc: "任務一： 完成老板布置的PPT作業",
completed: false,
priority: 2,
owner: {
id: 2,
name: "李四",
avatar: "avatars:svg-12"
},
dueDate: new Date()
}
]
},
{
id: 2,
name: "進行中",
tasks: [
{
id: 1,
desc: "任務三： 項目代碼評審",
completed: false,
priority: 1,
owner: {
id: 1,
name: "王五",
avatar: "avatars:svg-13"
},
dueDate: new Date()
},
{
id: 2,
desc: "任務一： 制定項目計劃",
completed: false,
priority: 2,
owner: {
id: 2,
name: "李四",
avatar: "avatars:svg-12"
},
dueDate: new Date()
}
]
}
];
}
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定義路由
<mat-list-item [routerLink]="[‘/project‘]"> <mat-icon mat-list-icon svgIcon="projects"></mat-icon> <h4 mat-line>項目首頁</h4> <p mat-line mat-subheader> 查看您的所有項目</p> </mat-list-item> <mat-list-item [routerLink]="[‘/task‘]"> <mat-icon mat-list-icon svgIcon="projects"></mat-icon> <h4 mat-line>任務首頁</h4> <p mat-line mat-subheader> 查看您的所有項目</p> </mat-list-item>
註意：一定要用HostBinding形式。
二、Group
用於同時進行一組動畫變換
group([animate(...),animate(...)...])接收一個數組，數組裏寫多個動畫。
import { trigger, state, transition, style, animate, group} from ‘@angular/animations‘;
export const slideToRight = trigger(‘routeAnim‘,[
state(‘void‘,style({‘position‘:‘fixed‘,‘width‘:‘100%‘,‘height‘:‘80%‘})),
state(‘*‘,style({‘position‘:‘fixed‘,‘width‘:‘100%‘,‘height‘:‘80%‘})),
transition(‘:enter‘,[
style({transform:‘translateX(-100%)‘,opacity:‘0‘}),
group([
animate(‘.5s ease-in-out‘, style({transform:‘translateX(0)‘})),
animate(‘.3s ease-in‘, style({opacity:1}))
])
]),
transition(‘:leave‘,[
style({transform:‘translateX(0)‘,opacity:‘1‘}),
group([
animate(‘.5s ease-in-out‘, style({transform:‘translateX(100%)‘})),
animate(‘.3s ease-in‘, style({opacity:0}))
])
]),
]);
三、Query & Stagger
Query用於父節點尋找子節點，把動畫應用到選中元素。非常強大。
Stagger指定有多個滿足Query的元素，每個的動畫之間有間隔。
做一個示例：新建的時候同時新建2個項目，兩個新建出的項目的動畫依次產生，第一個完成後才開始第二個。
建立list.animate.ts
進場動畫，先隱藏起來，通過stagger間隔1000s做一個1s的動畫。
import { trigger, state, transition, style, animate, query, animation,stagger} from ‘@angular/animations‘;
export const listAnimation = trigger(‘listAnim‘, [
transition(‘* => *‘, [
query(‘:enter‘, style({opacity: 0}), { optional: true }), //加入optional為true,後面的狀態動畫都是可選的
query(‘:enter‘, stagger(1000, [
animate(‘1s‘, style({opacity: 1}))
]), { optional: true }),
query(‘:leave‘, style({opacity: 1}), { optional: true }),
query(‘:leave‘, stagger(1000, [
animate(‘1s‘, style({opacity: 0}))
]), { optional: true })
])
]);
在project_list中使用
應用query動畫一般都是跟*ngFor在一起的，需要外面套一層div。
<div class="container" [@listAnim]="projects.length"> <app-project-item *ngFor="let project of projects" [item]="project" class="card" (onInvite)="lauchInviteDialog()" (onEdit)="lauchUpdateDialog()" (onDelete)="lauchConfimDialog(project)"> </app-project-item> </div> <button class="ab-buttonmad-fab fab-button" mat-fab type="button" (click)="openNewProjectDialog()"> <mat-icon>add</mat-icon> </button>
修改對應的css
// :host{ // display: flex; // flex-direction: row; // flex-wrap: wrap; // } //把host改為div .container{ display: flex; flex-direction: row; flex-wrap: wrap; }View Code
修改一下component
import { Component, OnInit , HostBinding } from "@angular/core";
import { MatDialog } from "@angular/material";
import { NewProjectComponent } from "../new-project/new-project.component";
import { InviteComponent } from ‘../invite/invite.component‘;
import { ConfirmDialogComponent } from ‘../../shared/confirm-dialog/confirm-dialog.component‘;
import {slideToRight} from ‘../../animate/router.animate‘
import { listAnimation } from ‘../../animate/list.animate‘;
import { projection } from ‘@angular/core/src/render3‘;
@Component({
selector: "app-project-list",
templateUrl: "./project-list.component.html",
styleUrls: ["./project-list.component.scss"],
animations:[
slideToRight,listAnimation //第一步，導入listAnimation
]
})
export class ProjectListComponent implements OnInit {
@HostBinding(‘@routeAnim‘) state;
//第二步，改造一下數組，加id
projects = [
{
id:1,
name: "企業協作平臺",
desc: "這是一個企業內部項目",
coverImg: "assets/images/covers/0.jpg"
},
{
id:2,
name: "自動化測試項目",
desc: "這是一個企業內部項目",
coverImg: "assets/images/covers/2.jpg"
}
];
constructor(private dialog: MatDialog) { }
ngOnInit() { }
//第三步，新增元素時hard code一下
openNewProjectDialog() {
// this.dialog.open(NewProjectComponent,{data:‘this is a dialog‘});
const dialogRef = this.dialog.open(NewProjectComponent, {
data: { title: ‘新建項目‘ }
});
dialogRef.afterClosed().subscribe((result) => {
console.log(result);
this.projects = [...this.projects,
{id:3,name:‘一個新項目‘,desc:‘這是一個新項目‘,coverImg:"assets/images/covers/3.jpg"},
{id:4,name:‘又一個新項目‘,desc:‘這是又一個新項目‘,coverImg:"assets/images/covers/4.jpg"}]
});
}
lauchInviteDialog() {
const dialogRef = this.dialog.open(InviteComponent);
}
lauchUpdateDialog() {
const dialogRef = this.dialog.open(NewProjectComponent, {
data: { title: ‘編輯項目‘ }
});
}
//第四步，改造一下刪除項目
lauchConfimDialog(project) {
const dialogRef = this.dialog.open(ConfirmDialogComponent, {
data: { title: ‘刪除項目‘, content: ‘您確認刪除該項目嗎？‘ }
});
dialogRef.afterClosed().subscribe(result=>{
console.log(result);
this.projects=this.projects.filter(p=>p.id!=project.id);
});
}
}
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Stagger使得在多個元素時候，動畫交錯開，而不是一起。
Angular動畫——路由動畫及高階動畫函數