android - 字符串: Actual and formal argument lists differ in length中的错误

尝试在以下代码中实现setHeadline()时遇到“实际和形式参数列表的长度不同”错误。

private void setupAdaptater() {
  mPostAdapter = new FirebaseRecyclerAdapter < Post, PostViewHolder > (
    Post.class,
    R.layout.item_layout_post,
    PostViewHolder.class,
    mPostRef
  ) {
    @Override
    protected void populateViewHolder(PostViewHolder viewHolder, final Post model, int position) {
      StorageReference storageReference = FirebaseStorage.getInstance().getReferenceFromUrl(model.getImageUrl());
      Glide.with(MainActivity.this)
        .using(new FirebaseImageLoader())
        .load(storageReference)
        .into(viewHolder.postIV);
      viewHolder.setHeadline(model.setHeadline()); //Headline
      viewHolder.setNumLikes(model.getNumLikes());
      viewHolder.postLikeIV.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
          updateNumLikes(model.getUID());
        }
      });
    }
  };
}

//...

   public void setHeadline(String headline){ //Headline
        postHeadline.setText(String.valueOf(headline)); //This string gives the value of headline_event
    }

我定义这样的字符串:

public class Post {
  private String headline; //Set headline as String;

  public Post() {

  }

  public Post(String headline) {
    this.headline = headline; //This is the headline that was added
  }

  public void setHeadline(String headline) { //Set the headline
    this.headline = headline; //set the headline as string
  }

//..

我不会弄到长度不匹配的地方。谁能帮我这个？

最佳答案

在您的Post类中，我看到以下代码:



您似乎在这里打了一个错字:方法是 g etHeadline，但它看起来像个“设置者”，因此应命名为 s etHeadline。

我希望看到两个看起来像这样的方法:

public String getHeadline() {
  return headline;
}

public void setHeadling(String headline) {
  this.headline = headline;
}