全面屏手机的沉浸式状态栏自适应

import window from '@ohos.window'; 
import fs from '@ohos.file.fs'; 
import { BusinessError } from '@ohos.base'; 
import common from '@ohos.app.ability.common'; 
 
@Entry 
@Component 
struct Index { 
  @State topSafeHeight: number = 0 
  @State testList: Array<number> = [] 
  @State show: boolean = true 
  @State statusBackgroundColor: Color = 0x03ffffff 
 
  async aboutToAppear() { 
    for (let i = 0; i < 20; i++) { 
      this.testList.push(i) 
    } 
    // 顶部安全高度适配 
    let w = await window.getLastWindow(getContext(this)) 
    await w.setWindowLayoutFullScreen(true) 
    this.topSafeHeight = px2vp(w.getWindowAvoidArea(window.AvoidAreaType.TYPE_SYSTEM).topRect.height) 
  } 
 
  build() { 
    Stack({ alignContent: Alignment.TopStart }) { 
      Image($r("app.media.startIcon")).width("100%") 
      Column() { 
        // 顶部安全高度适配 
        Row() { 
        }.height(this.topSafeHeight) 
        .width("100%") 
        .backgroundColor(this.statusBackgroundColor) 
        .animation({ 
          duration: 300, 
          curve: Curve.Friction, 
          iterations: 1, 
          playMode: PlayMode.Alternate 
        }) 
 
        Navigation() { 
          Panel(this.show) { 
            ForEach(this.testList, (item: number) => { 
              Text("我是测试数据" + item).fontSize(28).margin({ top: 8, bottom: 8 }) 
            }) 
          } 
          .type(PanelType.Foldable) 
          .mode(PanelMode.Full) 
          .dragBar(true) // 默认开启 
          .showCloseIcon(false) // 显示关闭图标 
          .onChange((width: number, height: number, mode: PanelMode) => { 
            console.info(`width:${width},height:${height},mode:${mode}`) 
            if (mode == 2) { 
              this.statusBackgroundColor = 0xffffffff 
            } else { 
              this.statusBackgroundColor = 0x03ffffff 
 
            } 
          }) 
        } 
        .title("顶部导航栏") 
        .titleMode(NavigationTitleMode.Mini) 
        .backgroundColor(this.statusBackgroundColor) 
        .animation({ 
          duration: 300, 
          curve: Curve.Friction, 
          iterations: 1, 
          playMode: PlayMode.Alternate 
        }) 
      } 
    }.width("100%") 
  } 
}