5.4

xml界面

主界面

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.wusiapplication.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/out"
        android:orientation="horizontal"
        >
    </LinearLayout>
</LinearLayout>

GridView

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.wusiapplication.GridFragment">

<GridView
    android:layout_width="match_parent"
    android:numColumns="3"
    android:layout_height="match_parent"
    android:id="@+id/view"
    >
</GridView>
</LinearLayout>

GridViewitem

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:layout_width="150dp"
        android:layout_height="180dp"
        android:src="@drawable/g"
        android:id="@+id/image"
        />

</LinearLayout>

Activity

package com.example.wusiapplication;


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 android.widget.ImageView;
import android.widget.SimpleAdapter;

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

public class GridFragment extends Fragment {
    private SimpleAdapter adapter;
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
       View view=inflater.inflate(R.layout.fragment_grid, container, false);
adapter=new SimpleAdapter(getActivity(),getData(),R.layout.gird_item,
        new String[]{"img"},
        new int[]{R.id.image}
);
        GridView gridView= (GridView)view.findViewById(R.id.view);
        gridView.setAdapter(adapter);
        return view;
    }
    private List<HashMap<String, Object>> getData(){
        List<HashMap<String,Object>>datas = new ArrayList<>();
        HashMap<String,Object> data = new HashMap<>();
        //Map映射添加数据
        data.put("img",R.drawable.g);
        //将Map放到list
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        //将Map放到list
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        data = new HashMap<>();
        data.put("img",R.drawable.g);
        datas.add( data);
        return  datas;
    }

}

MianActivity

package com.example.wusiapplication;

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

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentTransaction fragmentTransaction =getFragmentManager().beginTransaction();
     GridFragment gridFragment =new GridFragment();
        fragmentTransaction.add(R.id.out,gridFragment);
        fragmentTransaction.commit();
    }
}