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未验证 提交 17c68e5e 编写于 作者: J junyi233 提交者： Gitee
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update zh-cn/application-dev/quick-start/arkts-mvvm.md. 

Signed-off-by: Njunyi233 <zhengjun29@huawei.com>
上级 645c0b02
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Showing with 83 addition and 85 deletion
zh-cn/application-dev/quick-start/arkts-mvvm.md
浏览文件 @ 17c68e5e
......@@ -125,7 +125,7 @@ ViewModel通常包含多个顶层数据源。\@State和\@Provide装饰的变量
```ts
@Component
struct LinkLinkChild {
@Link @Watch("testNumChange") testNumGrand: number;
@Link @Watch("testNumChange") testNumGrand: number = 0;
testNumChange(propName: string): void {
console.log(`LinkLinkChild: testNumGrand value ${this.testNumGrand}`);
......@@ -139,7 +139,7 @@ ViewModel通常包含多个顶层数据源。\@State和\@Provide装饰的变量
@Component
struct PropLinkChild {
@Prop @Watch("testNumChange") testNumGrand: number;
@Prop @Watch("testNumChange") testNumGrand: number = 0;
testNumChange(propName: string): void {
console.log(`PropLinkChild: testNumGrand value ${this.testNumGrand}`);
......@@ -175,7 +175,7 @@ ViewModel通常包含多个顶层数据源。\@State和\@Provide装饰的变量
```ts
@Component
struct LinkLinkChild {
@Link @Watch("testNumChange") testNumGrand: number;
@Link @Watch("testNumChange") testNumGrand: number = 0;
testNumChange(propName: string): void {
console.log(`LinkLinkChild: testNumGrand value ${this.testNumGrand}`);
......@@ -189,7 +189,7 @@ ViewModel通常包含多个顶层数据源。\@State和\@Provide装饰的变量
@Component
struct PropLinkChild {
@Prop @Watch("testNumChange") testNumGrand: number;
@Prop @Watch("testNumChange") testNumGrand: number = 0;
testNumChange(propName: string): void {
console.log(`PropLinkChild: testNumGrand value ${this.testNumGrand}`);
......@@ -277,7 +277,7 @@ ViewModel通常包含多个顶层数据源。\@State和\@Provide装饰的变量
```ts
@Component
struct LinkLinkChild {
@Consume @Watch("testNumChange") testNum: number;
@Consume @Watch("testNumChange") testNum: number = 0;
testNumChange(propName: string): void {
console.log(`LinkLinkChild: testNum value ${this.testNum}`);
......@@ -290,7 +290,7 @@ struct LinkLinkChild {
@Component
struct PropLinkChild {
@Prop @Watch("testNumChange") testNumGrand: number;
@Prop @Watch("testNumChange") testNumGrand: number = 0;
testNumChange(propName: string): void {
console.log(`PropLinkChild: testNumGrand value ${this.testNumGrand}`);
......@@ -609,7 +609,7 @@ struct Parent {
```ts
@Observed class ObservedArray<T> extends Array<T> {
constructor(args: any[]) {
constructor(args: T[]) {
super(...args);
}
/* otherwise empty */
......@@ -686,10 +686,10 @@ struct ViewB {
build() {
Column() {
ForEach(this.arrA,
(item) => {
(item: ClassA) => {
ViewA({ label: `#${item.id}`, a: item })
},
(item) => item.id.toString()
(item: ClassA) => item.id.toString()
)
Divider().height(10)
......@@ -875,9 +875,9 @@ export class Person {
```ts
@Observed
export class ObservedArray<T> extends Array<T> {
constructor(args?: any[]) {
constructor(args: T[]) {
console.log(`ObservedArray: ${JSON.stringify(args)} `)
if (Array.isArray(args)) {
if (args instanceof Array) {
super(...args);
} else {
super(args)
......@@ -916,11 +916,10 @@ export class ObservedArray<T> extends Array<T> {
Divider().height(8)
ForEach(this.contacts,
contact => {
PersonView({person: contact, phones: contact.phones, selectedPerson: this.$selectedPerson})
ForEach(this.contacts, (contact: Person) => {
PersonView({ person: contact, phones: contact.phones as ObservedArray<string>, selectedPerson: this.$selectedPerson })
},
contact => contact.id_
(contact: Person) => contact.id_
)
Divider().height(8)
......@@ -971,7 +970,7 @@ export class ObservedArray<T> extends Array<T> {
build() {
Flex({ direction: FlexDirection.Row, justifyContent: FlexAlign.SpaceBetween }) {
Text(this.person.name)
if (this.phones.length) {
if (this.phones.length > 0) {
Text(this.phones[0])
}
}
......@@ -1005,12 +1004,12 @@ export class ObservedArray<T> extends Array<T> {
@Link selectedPerson: Person;
/*在本地副本上编辑，直到点击保存*/
@Prop name: string;
@Prop address : Address;
@Prop phones : ObservedArray<string>;
@Prop name: string = "";
@Prop address : Address = new Address("", 0, "");
@Prop phones : ObservedArray<string> = [];
selectedPersonIndex() : number {
return this.addrBook.contacts.findIndex((person) => person.id_ == this.selectedPerson.id_);
return this.addrBook.contacts.findIndex((person: Person) => person.id_ == this.selectedPerson.id_);
}
build() {
......@@ -1031,21 +1030,21 @@ export class ObservedArray<T> extends Array<T> {
TextInput({text: this.address.zip.toString()})
.onChange((value) => {
const result = parseInt(value);
this.address.zip= isNaN(result) ? 0 : result;
const result = Number.parseInt(value);
this.address.zip= Number.isNaN(result) ? 0 : result;
})
if(this.phones.length>0) {
if (this.phones.length > 0) {
ForEach(this.phones,
(phone, index) => {
TextInput({text: phone})
(phone: ResourceStr, index?:number) => {
TextInput({ text: phone })
.width(150)
.onChange((value) => {
console.log(`${index}. ${value} value has changed`)
this.phones[index] = value;
this.phones[index!] = value;
})
},
(phone, index) => `${index}-${phone}`
(phone: ResourceStr, index?:number) => `${index}-${phone}`
)
}
......@@ -1106,9 +1105,9 @@ export class ObservedArray<T> extends Array<T> {
@Observed
export class ObservedArray<T> extends Array<T> {
constructor(args?: any[]) {
constructor(args: T[]) {
console.log(`ObservedArray: ${JSON.stringify(args)} `)
if (Array.isArray(args)) {
if (args instanceof Array) {
super(...args);
} else {
super(args)
......@@ -1197,12 +1196,12 @@ export class ObservedArray<T> extends Array<T> {
@Link selectedPerson: Person;
/*在本地副本上编辑，直到点击保存*/
@Prop name: string;
@Prop address: Address;
@Prop phones: ObservedArray<string>;
@Prop name: string = "";
@Prop address: Address = new Address("", 0, "");
@Prop phones: ObservedArray<string> = [];
selectedPersonIndex(): number {
return this.addrBook.contacts.findIndex((person) => person.id_ == this.selectedPerson.id_);
return this.addrBook.contacts.findIndex((person: Person) => person.id_ == this.selectedPerson.id_);
}
build() {
......@@ -1223,21 +1222,21 @@ export class ObservedArray<T> extends Array<T> {
TextInput({ text: this.address.zip.toString() })
.onChange((value) => {
const result = parseInt(value);
this.address.zip = isNaN(result) ? 0 : result;
const result = Number.parseInt(value);
this.address.zip = Number.isNaN(result) ? 0 : result;
})
if (this.phones.length > 0) {
ForEach(this.phones,
(phone, index) => {
(phone: ResourceStr, index?:number) => {
TextInput({ text: phone })
.width(150)
.onChange((value) => {
console.log(`${index}. ${value} value has changed`)
this.phones[index] = value;
this.phones[index!] = value;
})
},
(phone, index) => `${index}-${phone}`
(phone: ResourceStr, index?:number) => `${index}-${phone}`
)
}
......@@ -1280,7 +1279,7 @@ export class ObservedArray<T> extends Array<T> {
struct AddressBookView {
@ObjectLink me: Person;
@ObjectLink contacts: ObservedArray<Person>;
@State selectedPerson: Person = undefined;
@State selectedPerson: Person = new Person("", "", 0, "", []);
aboutToAppear() {
this.selectedPerson = this.me;
......@@ -1293,11 +1292,10 @@ export class ObservedArray<T> extends Array<T> {
Divider().height(8)
ForEach(this.contacts,
contact => {
PersonView({ person: contact, phones: contact.phones, selectedPerson: this.$selectedPerson })
ForEach(this.contacts, (contact: Person) => {
PersonView({ person: contact, phones: contact.phones as ObservedArray<string>, selectedPerson: this.$selectedPerson })
},
contact => contact.id_
(contact: Person) => contact.id_
)
Divider().height(8)
......
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