如何在RecyclerView中设置相等的行高？

  • Z时代
  • 2024-01-10
  • 分类：问答

我有JSON数据文件，它具有不同大小的项目和行大小显示根据JSON数据，但我想在RecyclerView相等的行大小。如何在RecyclerView中设置相等的行高？

如何实现我只发现GridLayoutManager但它不符合我的要求，有什么帮助？

public class UserMsgAdpater extends RecyclerView.Adapter<UserMsgAdpater.MyViewHolder> { 
public ArrayList<UserMessage> selected_usersList=new ArrayList<>(); 
private List<UserMessage> userList; 
Context ctx; 
TextView textview; 
private SparseBooleanArray mSelectedItemsIds; 
public UserMsgAdpater(Context context, List<UserMessage> data,ArrayList<UserMessage> selectedList) { 
    this. userList = data; 
    this. ctx = context; 
    this.selected_usersList = selectedList; 
    mSelectedItemsIds = new SparseBooleanArray(); 
} 
public class MyViewHolder extends RecyclerView.ViewHolder { 
    public TextView userName; 
    public CardView cardView; 
    public MyViewHolder(View view) { 
     super(view); 
     userName = (TextView) view.findViewById(R.id.user_temp); 
    } 
} 
@Override 
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    View itemView = LayoutInflater.from(parent.getContext()) 
      .inflate(R.layout.user_temp_list, parent, false); 
    return new MyViewHolder(itemView); 
} 
@Override 
public void onBindViewHolder(MyViewHolder holder, int position) 
{ 
    holder.userName.setText(userList.get(position).getMessage()); 
    holder.itemView 
      .setBackgroundColor(mSelectedItemsIds.get(position) ?Color.GRAY 
        : Color.TRANSPARENT); 
} 
public void toggleSelection(int position) { 
    selectView(position, !mSelectedItemsIds.get(position)); 
} 
public void removeSelection() { 
    mSelectedItemsIds = new SparseBooleanArray(); 
    notifyDataSetChanged(); 
} 
//Put or delete selected position into SparseBooleanArray 
public void selectView(int position, boolean value) { 
    if (value) 
     mSelectedItemsIds.put(position, value); 
    else 
     mSelectedItemsIds.delete(position); 
    notifyDataSetChanged(); 
} 
//Get total selected count 
public int getSelectedCount() { 
    return mSelectedItemsIds.size(); 
} 
//Return all selected ids 
public SparseBooleanArray getSelectedIds() { 
    return mSelectedItemsIds; 
} 
@Override 
public int getItemCount() { 
    return userList.size(); 
} 
public UserMessage get(int i) { 
    return userList.get(i); 
}}

我的活动我正在使用此代码进行物品装饰请看看。

mRecyclerView.setItemAnimator(new DefaultItemAnimator()); 
     mRecyclerView.addItemDecoration(new DividerItemDecoration(mContext, LinearLayoutManager.VERTICAL)); 
     mRecyclerView.addItemDecoration(new EqualSpacingItemDecoration(16,EqualSpacingItemDecoration.VERTICAL));

回答：

您可以设置每个项目的高度，你ViewHolder构造内：

TableRow.LayoutParams params = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, mHeight); 
itemView.setLayoutParams(params);

其中mHeight是所需的项目高度的整数值。

为您的代码，它会是这样的：

private int mHeight = 100; 
public class MyViewHolder extends RecyclerView.ViewHolder { 
    public TextView userName; 
    public CardView cardView; 
    public MyViewHolder(View view) { 
     super(view); 
     userName = (TextView) view.findViewById(R.id.user_temp); 
     TableRow.LayoutParams params = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, mHeight); 
     view.setLayoutParams(params); 
    } 
}

以上是 如何在RecyclerView中设置相等的行高？ 的全部内容， 来源链接： utcz.com/qa/263117.html

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