利用GridView实现九宫格

**主要布局

**item布局代码

**fragment部分的布局代码

**主文件中JAVA代码的实现

package com.example.mpyypm.zuoye;

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

/**

• Created by mpyypm on 2017/5/8.
  */

  public class MainActivity extends AppCompatActivity {
  private Fragment grid_viewFragment;
  private FragmentTransaction transction;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  FragmentManager manager = getFragmentManager() ;
  transction = manager.beginTransaction();
  if(grid_viewFragment ==null){
  grid_viewFragment = new Grid_ViewFragment();
  transction.add(R.id.show, grid_viewFragment);
  }
  transction.replace(R.id.show, grid_viewFragment);
  transction.commit();
  }
  }

**fragment部分的代码

package com.example.mpyypm.zuoye;

import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;

import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;

import java.util.ArrayList;
import java.util.List;

public class Grid_ViewFragment extends Fragment {

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_grid_view, container, false);

List datas = new ArrayList<>();
datas.add(new ClassInfo(R.drawable.cat_1));
datas.add(new ClassInfo(R.drawable.cat_2));
datas.add(new ClassInfo(R.drawable.cat_3));
datas.add(new ClassInfo(R.drawable.cat_4));
datas.add(new ClassInfo(R.drawable.cat_5));
datas.add(new ClassInfo(R.drawable.cat_6));
datas.add(new ClassInfo(R.drawable.cat_7));
datas.add(new ClassInfo(R.drawable.cat_8));
datas.add(new ClassInfo(R.drawable.cat_9));
final CustomGridViewAdapter adapter = new CustomGridViewAdapter(getActivity(), datas);

GridView gridview = (GridView) view.findViewById(R.id.GridView);
gridview.setAdapter(adapter);
return view;
}
}