如何跳转到系统发送短信页面

@Entry 
@Component 
struct JumpMessage { 
  private context = getContext(this) as common.UIAbilityContext 
 
  startMMSAbilityExplicit() { 
// 这里完善联系人和号码 
let params: Array<Object> = [new Contact(“张三”, 13344556677)]; 
 
let want: Want = { 
  bundleName: "com.ohos.mms", 
  abilityName: "com.ohos.mms.MainAbility", 
  parameters: { 
    contactObjects: JSON.stringify(params), 
    pageFlag: "conversation", 
    // 这里填写短信内容 
    content: "我才是测试内容" 
  } 
}; 
this.context.startAbilityForResult(want).then((data) => { 
  console.log("Success" + JSON.stringify(data)) 
}).catch(() => { 
  console.log("error") 
}) 
} 
 
build() { 
  Row() { 
    Column() { 
Button(‘发送短信’) 
.onClick(() => { 
this.startMMSAbilityExplicit(); 
}) 
} 
    .width(‘100%’) 
  } 
  .height(‘100%’) 
} 
}