HarmonyOS 如何取消TextInput自动聚焦

@Entry  
@Component  
struct Index {  
  controller: TextInputController = new TextInputController()  
  
  build() {  
    Row() {  
      TextInput({  
        placeholder: 'wait input...',  
        text: '',  
        controller: this.controller  
      })  
      Button('placeholder')  
        .defaultFocus(true)  
    }  
  }  
}

@Entry  
@Component  
struct Index {  
  controller: TextInputController = new TextInputController()  
  
  build() {  
    Row() {  
      TextInput({  
        placeholder: 'wait input...',  
        text: '',  
        controller: this.controller  
      })  
      Text('placeholder')  
        .focusable(true)  
        .defaultFocus(true)  
    }  
  }  
}