HarmonyOS 鸿蒙Next 有没有监听状态栏事件？

你好，有想法的开发者

目前还没有未发现有任何公开的事件能够直接监听状态栏的变化。但想了想可以通过一些替代方案来实现这一功能，这是我的一些想法，供参考：

1. 将应用设定为沉浸式模式，这样便可以隐藏状态栏所占的位置。

   // EntryAbility
   onWindowStageCreate(windowStage: window.WindowStage): void {
       // Main window is created, set main page for this ability
   <span class="hljs-keyword"><span class="hljs-keyword">let</span></span> windowClass: window.Window | <span class="hljs-literal"><span class="hljs-literal">undefined</span></span> = <span class="hljs-literal"><span class="hljs-literal">undefined</span></span>
   windowStage.getMainWindow((err: BusinessError, data) =&gt; {
     windowClass = data;
     <span class="hljs-keyword"><span class="hljs-keyword">let</span></span> names: <span class="hljs-built_in"><span class="hljs-built_in">Array</span></span>&lt;<span class="hljs-string"><span class="hljs-string">'status'</span></span> | <span class="hljs-string"><span class="hljs-string">'navigation'</span></span>&gt; = [];
     <span class="hljs-keyword"><span class="hljs-keyword">try</span></span> {
       <span class="hljs-keyword"><span class="hljs-keyword">let</span></span> promise = windowClass.setWindowSystemBarEnable(names);
       promise.then(() =&gt; {
         console.info(<span class="hljs-string"><span class="hljs-string">'Succeeded in setting the system bar to be invisible.'</span></span>);
       }).catch((err: BusinessError) =&gt; {
         console.error(`Failed to set the system bar to be invisible. Cause code: ${err.code}, message: ${err.message}`);
       });
     } <span class="hljs-keyword"><span class="hljs-keyword">catch</span></span> (exception) {
       console.error(`Failed to set the system bar to be invisible. Cause code: ${exception.code}, message: ${exception.message}`);
     }
   })
   }<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

2. 定义一个占位控件来模拟状态栏，通过精确的布局控制和对占位控件高度的计算，将其放置在原本状态栏所在的位置。这样一来，我们就可以针对这个占位控件进行双击事件的监听。

   @Entry
   @Component
   struct Index {
   @State clickText: string = ‘empty’
   
   build() {
   Column() {
   Text(this.clickText)
   .fontSize(28)
   .gesture(GestureGroup(GestureMode.Exclusive,
   TapGesture({ count: 2 })
   .onAction(() => {
   this.clickText = ‘double click 1’
   }),
   TapGesture({ count: 1 })
   .onAction(() => {
   this.clickText = ‘single click 1’
   })
   )
   )
   .borderWidth(1)
   }
   .width(‘100%’)
   .height(‘100%’)
   .justifyContent(FlexAlign.Center)
   .alignSelf(ItemAlign.Center)
   }
   }<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

这种方法虽然稍显曲折，但能够实现对状态栏区域的监控。希望这些想法能帮到你