gridview和BaseAdapter的使用

package com.example.gridviewdemo;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class GridViewDemo extends AppCompatActivity {
    private int[] imgids = {R.drawable.apple_pic, R.drawable.banana_pic, R.drawable.cherry_pic, R.drawable.grape_pic, R.drawable.mango_pic,
            R.drawable.orange_pic, R.drawable.pear_pic, R.drawable.strawberry_pic, R.drawable.watermelon_pic};
    private String[] name = {"苹果", "香蕉", "樱桃", "葡萄", "芒果", "橙子", "梨", "草莓", "西瓜"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_grid_view_demo);
        GridView gv = (GridView) findViewById(R.id.gv);
        gv.setAdapter(new MyAdapter());
        gv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView
  parent, View view, int position, long id) {
                Toast.makeText(GridViewDemo.this,name[position],Toast.LENGTH_SHORT).show();
            }
        });
    }

    public class MyAdapter extends BaseAdapter {

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

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

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

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {

            View view = View.inflate(GridViewDemo.this, R.layout.gv_item, null);
            ImageView iv=view.findViewById(R.id.iv);
            iv.setImageResource(imgids[position]);
            TextView tv=view.findViewById(R.id.tv);
            tv.setText(name[position]);
            return view;
        }
    }
}