如何在Android中为GrideView列表添加ViewHolder

Question

我正在尝试为此ViewHolder列表编写一个GridView，但每次都遇到错误。您能告诉我如何为该gridView列表创建正确的ViewHolder吗？

我的代码：

  public static String[] stringArray = {"IRAN","Uganda",
"Ukraine","United Arab Emirates","United Kingdom","United States Minor Outlying Islands",};

public int[] imageArray = {R.drawable.iran,R.drawable.united_states,R.drawable.iran,R.drawable.russia,
R.drawable.iran,R.drawable.united_states,R.drawable.iran,R.drawable.uk,
R.drawable.iran,R.drawable.united_states  };

public CountryImageAdapter(Context mContext) {this.mContext = mContext;}

@Override
public int getCount() {return imageArray.length;}

@Override
public Object getItem(int position) {return imageArray[position];}

@Override
public long getItemId(int position) {return 0;}

@Override
public View getView(int position, View view, ViewGroup viewGroup) {View v;

LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

v = inflater.inflate(R.layout.sample_gridlayout, null);
v.setLayoutParams(new GridView.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));

TextView textView = (TextView) v.findViewById(R.id.country_text);
ImageView imageView = (ImageView) v.findViewById(R.id.ivGallery);

textView.setText(stringArray[position]);
imageView.setImageResource(imageArray[position]);

return v;}

Answer 1

您应该创建一个扩展RecyclerView.ViewHolder的customViewHolder类，并且应该在其中找到视图：

TextView textView = (TextView) v.findViewById(R.id.country_text);
ImageView imageView = (ImageView) v.findViewById(R.id.ivGallery);

并且您应该放置以下行：

textView.setText(stringArray[position]);
imageView.setImageResource(imageArray[position]);

在onBindViewHolder函数中。