Recyclerview项目颜色根据文本变化

Question

我有一个包含一些项目的回收视图，我想将一些项目的背景颜色更改为不同的颜色，我该如何实现这一点。请看下图。我想将背景颜色或文本颜色更改为不同的。我有一个包含一些项目的回收视图，我想将一些项目的背景颜色更改为不同的颜色，我该如何实现这一点。请看下图。我想将背景颜色或文本颜色更改为不同的。

我的适配器类别

package com.cmrlabs.tracker;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.recyclerview.widget.RecyclerView;

import java.util.List;

public class AdapterBusStops extends RecyclerView.Adapter<AdapterBusStops.ViewHolder> {

    private List<String> mData;
    private LayoutInflater mInflater;
    private ItemClickListener mClickListener;

    // data is passed into the constructor
    AdapterBusStops(Context context, List<String> data) {
        this.mInflater = LayoutInflater.from(context);
        this.mData = data;
    }

    // inflates the row layout from xml when needed
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = mInflater.inflate(R.layout.item_bus_stop, parent, false);
        return new ViewHolder(view);
    }

    // binds the data to the TextView in each row
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.setIsRecyclable(false);
        String bus = mData.get(position);
        holder.busStopName.setText(bus);
    }


    // total number of rows
    @Override
    public int getItemCount() {
        return mData.size();
    }


    // stores and recycles views as they are scrolled off screen
    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        TextView busStopName;

        ViewHolder(View itemView) {
            super(itemView);
            busStopName = itemView.findViewById(R.id.tvBusStop);
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            if (mClickListener != null) mClickListener.onItemClick(view, getAdapterPosition());
        }
    }

    // convenience method for getting data at click position
    String getItem(int id) {
        return mData.get(id);
    }

    // allows clicks events to be caught
    void setClickListener(ItemClickListener itemClickListener) {
        this.mClickListener = itemClickListener;
    }

    // parent activity will implement this method to respond to click events
    public interface ItemClickListener {
        void onItemClick(View view, int position);
    }
}

Answer 1

您可以像 onBindView 一样为此 TextView 编写逻辑

    String bus = mData.get(position);
    holder.busStopName.setText(bus);
    if (holder.busStopName.getText().toString().endsWith("BUS LEFT -") || holder.busStopName.getText().toString().contains("BUS LEFT")) {
        // Set text color what should be for Bus left
    } else {
        // Set text color what should be for upcoming buses
    }