鸿蒙项目开发——Window 和 Display 获取屏幕信息

import { display } from '@kit.ArkUI';
@Entry@Componentstruct Displaypage {  @State msg: string = ''
  build() {    Column({ space: 20 }) {      Button('获取信息')        .width('60%')        .onClick(async () => {          // 获取当前屏幕          let disp = display.getDefaultDisplaySync()          // 获取屏幕宽度和高度 单位px          let width = disp.width          let height = disp.height          // 获取屏幕角度          let rotation = disp.rotation == 0 ? '正向竖直' :            (disp.rotation == 1 ? '水平90' : (disp.rotation == 2 ? '反向竖直' : '水平-90'))          // 获取屏幕形状          let pinshape = disp.screenShape == display.ScreenShape.RECTANGLE ? '矩形屏幕' : '圆形屏幕'          // 获取屏幕刷新率          let rate = disp.refreshRate          this.msg =            `display获取信息：\n屏幕宽度：${width}, 屏幕高度：${height}\n屏幕角度：${rotation}\n屏幕形状：${pinshape}\n屏幕刷新率：${rate}`        })      Text(this.msg).fontSize(20)
    }    .height('100%')    .width('100%')  }}

import { AbilityConstant, ConfigurationConstant, UIAbility, Want } from '@kit.AbilityKit';import { hilog } from '@kit.PerformanceAnalysisKit';import { window } from '@kit.ArkUI';
const DOMAIN = 0x0000;
export default class EntryAbility extends UIAbility {  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {    this.context.getApplicationContext().setColorMode(ConfigurationConstant.ColorMode.COLOR_MODE_NOT_SET);    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onCreate');  }
  onDestroy(): void {    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onDestroy');  }
  onWindowStageCreate(windowStage: window.WindowStage): void {    // Main window is created, set main page for this ability    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageCreate');    //  获取当前主窗口    let wind = windowStage.getMainWindowSync()    // 获取通知栏区域    let toparea = wind.getWindowAvoidArea(window.AvoidAreaType.TYPE_SYSTEM)    //  获取底部导航区域    let bottomarea = wind.getWindowAvoidArea(window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR)    //可布局宽度    let uiwidth = wind.getWindowProperties().windowRect.width    // 可布局高度，总高度减去通知栏高度和导航栏高度    let uiheight = wind.getWindowProperties().windowRect.height - toparea.topRect.height - bottomarea.bottomRect.height    // 将可布局的信息保存在appstorage中。    AppStorage.setOrCreate('uiwidth',uiwidth)    AppStorage.setOrCreate('uiheight',uiheight)    windowStage.loadContent('pages/Displaypage1', (err) => {      if (err.code) {        hilog.error(DOMAIN, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err));        return;      }      hilog.info(DOMAIN, 'testTag', 'Succeeded in loading the content.');    });  }
  onWindowStageDestroy(): void {    // Main window is destroyed, release UI related resources    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');  }
  onForeground(): void {    // Ability has brought to foreground    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onForeground');  }
  onBackground(): void {    // Ability has back to background    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onBackground');  }}

import { display } from '@kit.ArkUI';
@Entry@Componentstruct Displaypage1 {  // 获取ability传过来的可布局宽度和高度  @State uiwidth:number=AppStorage.get('uiwidth')!  @State uiheight:number=AppStorage.get('uiheight')!  build() {    Column({ space: 20 }) {
      Text(`可布局宽度（px）:${this.uiwidth}\n可布局高度（px）:${this.uiheight}`).fontSize(20)
    }    .height('100%')    .width('100%')  }}