TextInput如何取消自动获得焦点

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