Question

我在片段中为recyclelerView编写了此代码RecyclerAdapter。我试图通过将一组颜色字符串传递给holder.cardView.setCardBackgroundColor(Color.parseColor())来随机更改recyclerView中卡片的背景颜色。此代码工作且颜色随机变化但几秒后应用程序崩溃并在logcat中抛出以下错误< / p>

Skipped 49 frames!  The application may be doing too much work on its main thread.

这是 RecyclerAdapter.java

import android.graphics.Color;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;


public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.RecyclerViewHolder> {

String[] postText;
String[] groupName;
String[] backColor = {"#ff6347", "#c2571a", "#a3b86c", "#3c6478", "#EBC94"};

public RecyclerAdapter(String[] postText, String[] groupName){
    this.postText = postText;
    this.groupName = groupName;
}
@Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_view,parent,false);
    RecyclerViewHolder recyclerViewHolder = new RecyclerViewHolder(view);
    return recyclerViewHolder;
}

@Override
public void onBindViewHolder(RecyclerViewHolder holder, int position) {

    holder.txPost.setText(postText[position]);
    holder.txGroupName.setText(groupName[position]);
    holder.cardView.setCardBackgroundColor(Color.parseColor(backColor[position]));

}

@Override
public int getItemCount() {

    return postText.length;
}

public static class RecyclerViewHolder extends RecyclerView.ViewHolder{

    TextView txPost;
    TextView txGroupName;
    CardView cardView;
    public RecyclerViewHolder(View view)
    {
        super(view);
        txPost = (TextView) view.findViewById(R.id.post_text);
        cardView = (CardView) itemView.findViewById(R.id.card_view);

        txGroupName = (TextView) view.findViewById(R.id.group_name);

    }
}
}

为什么会出现此错误？我该如何解决呢？一点点解释都会有所帮助。

Answer 1

我唯一能想到的是Color.parseColor可能不必要地花费太长时间才能找到颜色代码中的颜色。尝试在创建适配器时解析所有颜色，看看它是否有效。

错误应用程序可能在其主线程上做了太多工作

1 个答案: