gridview Demo

public class MainActivity extends AppCompatActivity {

    private GridView gridview;
    private ListView listView;
    private ArrayList<HashMap<String, Object>> arrayList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        gridview = (GridView) findViewById(R.id.gridview);

        gridview.setNumColumns(4);
        arrayList = new ArrayList<>();
        for (int i = 0; i < 30; i++) {
            HashMap<String, Object> hashMap = new HashMap<>();
            hashMap.put("image", R.mipmap.ic_launcher);
            hashMap.put("text","NO."+i);
            arrayList.add(hashMap);
        }

//        SimpleAdapter simpleAdapter = new SimpleAdapter(MainActivity.this, arrayList, R.layout.gridview_item, new String[]{"image", "text"},
//                new int[]{R.id.image, R.id.tv});
//        gridview.setAdapter(simpleAdapter);

        GridViewAdapter viewAdapter = new GridViewAdapter(MainActivity.this, arrayList);
        gridview.setAdapter(viewAdapter);
    }
}

xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    tools:context="com.tiaodong.gridviewdemo.MainActivity">

    <GridView
        android:numColumns="auto_fit"
        android:columnWidth="90dp"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp"
        android:horizontalSpacing="10dp"
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
         />
</RelativeLayout>

gridview_item:

<?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_gravity="center_horizontal"
        android:scaleType="fitCenter"
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/tv"
        android:layout_gravity="center_horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>