Attempt to update UI in non-UI thread._java.lang.illegalstateexception: attempt to update

不管鸿蒙还是安卓都要求在UI线程更新UI相关组件，在相关项目时使用TaskDispatcher执行识别任务，并识别出结果

TaskDispatcher taskDispatcher = getGlobalTaskDispatcher(TaskPriority.DEFAULT);
taskDispatcher.syncDispatch(() -> {
//获取识别结果
ArrayList<Recognition> results = mPredictor.recognize("person");
 
//之后在Layout上绘制识别结果
 
rootContainer.addDrawTask(new Component.DrawTask() {//在此处会报一下错误，见下表
    @Override
    public void onDraw(Component component, Canvas canvas) {
        //省略一部分代码...
        canvas.drawRect(location.left, location.top, location.right, location.bottom, rectPaint);
        
    }
});
}

由于没有在UI线程更新代码报错如下

 E AndroidRuntime:  FATAL EXCEPTION: PoolThread-16 
 E AndroidRuntime:  Process: com.wincent.harmonybot, PID: 12921 
 E AndroidRuntime:  java.lang.IllegalStateException: Attempt to update UI in non-UI thread. 
 E AndroidRuntime:      at ohos.agp.components.Component.nativeAddDrawTaskOverContent(Native Method) 
 E An