ts-universal-attributes-polymorphic-style.md 3.2 KB
Newer Older
Z
zengyawen 已提交
1 2 3
# Polymorphic Style


E
esterzhou 已提交
4
> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
Z
zengyawen 已提交
5 6 7 8 9 10 11 12 13 14 15 16 17
> This component is supported since API version 8. Updates will be marked with a superscript to indicate their earliest API version.


You can set state-specific styles for components.


## Required Permissions

None


## Attributes

E
ester.zhou 已提交
18
| Name | Type | Default Value | Description |
Z
zengyawen 已提交
19
| -------- | -------- | -------- | -------- |
E
ester.zhou 已提交
20
| stateStyles | StateStyles | - | Styles of a component for different states. |
Z
zengyawen 已提交
21 22

- StateStyles<sup>8+</sup>
E
ester.zhou 已提交
23
    | Name | Type | Mandatory | Default Value | Description |
Z
zengyawen 已提交
24
  | -------- | -------- | -------- | -------- | -------- |
E
ester.zhou 已提交
25 26 27
  | normal | ()=&gt;void | No | - | Style of the component when stateless. |
  | pressed | ()=&gt;void | No | - | Style of the component in the pressed state. |
  | disabled | ()=&gt;void | No | - | Style of the component in disabled state. |
Z
zengyawen 已提交
28 29 30 31


## Example

E
ester.zhou 已提交
32

Z
zengyawen 已提交
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
```
@Entry
@Component
struct StyleExample {
  @State isEnable: boolean = true

  @Styles pressedStyles() {
        .backgroundColor("#ED6F21")
        .borderRadius(10)
        .borderStyle(BorderStyle.Dashed)
        .borderWidth(2)
        .borderColor("#33000000")
        .width(120)
        .height(30)
        .opacity(1)
  }

  @Styles disabledStyles() {
        .backgroundColor("#E5E5E5")
        .borderRadius(10)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor("#2a4c1919")
        .width(90)
        .height(25)
        .opacity(1)
  }

  @Styles normalStyles() {
        .backgroundColor("#0A59F7")
        .borderRadius(10)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor("#33000000")
        .width(100)
        .height(25)
        .opacity(1)
  }

  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center }) {
      Text("normal")
        .fontSize(14)
        .fontColor(Color.White)
        .opacity(0.5)
        .stateStyles({
          normal: this.normalStyles,
        })
        .margin({ bottom: 20 })
        .textAlign(TextAlign.Center)
      Text("pressed")
        .backgroundColor("#0A59F7")
        .borderRadius(20)
        .borderStyle(BorderStyle.Dotted)
        .borderWidth(2)
        .borderColor(Color.Red)
        .width(100)
        .height(25)
        .opacity(1)
        .fontSize(14)
        .fontColor(Color.White)
        .stateStyles({
          pressed: this.pressedStyles,
        })
        .margin({ bottom: 20 })
        .textAlign(TextAlign.Center)
      Text(this.isEnable == true ? "effective" : "disabled")
        .backgroundColor("#0A59F7")
        .borderRadius(20)
        .borderStyle(BorderStyle.Solid)
        .borderWidth(2)
        .borderColor(Color.Gray)
        .width(100)
        .height(25)
        .opacity(1)
        .fontSize(14)
        .fontColor(Color.White)
        .enabled(this.isEnable)
        .stateStyles({
          disabled: this.disabledStyles,
        })
        .textAlign(TextAlign.Center)
      Text("control disabled")
        .onClick(() => {
          this.isEnable = !this.isEnable
          console.log(`${this.isEnable}`)
        })
    }
    .width(350).height(300)
  }
}
```

![en-us_image_0000001211898512](figures/en-us_image_0000001211898512.gif)