前言

xml样板

常用的属性

android:numColumns="auto_fit" ，GridView的列数设置为自动

android:columnWidth="90dp"，每列的宽度，也就是Item的宽度

android:stretchMode="columnWidth"，缩放与列宽大小同步

NO_STRETCH

0

扩展无效

STRETCH_COLUMN_WIDTH

2

扩展列

STRETCH_SPACING

1

扩展列间的空间

STRETCH_SPACING_UNIFORM

3

均匀地扩展列间的空间

android:verticalSpacing="10dp"，两行之间的边距

android:horizontalSpacing="10dp"，两列之间的边距

例子1 使用ArrayAdapter

在Activity里

List stringList = new ArrayList<>();

ArrayAdapter arrayAdapter = new ArrayAdapter<>(this,R.layout.text_parent_select_item,stringList);

gridView.setAdapter(arrayAdapter);

text_parent_select_item.xml

例子2 使用SimpleAdapter

Activity类

public class MainActivity extendsActivity {

privateGridView gridView;

private List>dataList;

privateSimpleAdapter adapter;

//如果只有TextView 可以考虑使用ArrayAdapter 适配器，当然你也可以自定义适配器

@Override

protected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

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

//初始化数据

initData();

String[] from={"img","text"};

int[] to={R.id.img,R.id.text};

adapter=new SimpleAdapter(this, dataList, R.layout.gridview_item, from, to);

gridView.setAdapter(adapter);

gridView.setOnItemClickListener(newOnItemClickListener() {

@Override

public void onItemClick(AdapterView> arg0, View arg1, intarg2,

longarg3) {

AlertDialog.Builder builder= new AlertDialog.Builder(MainActivity.this);

builder.setTitle("提示").setMessage(dataList.get(arg2).get("text").toString()).create().show();

}

});

}

voidinitData() {

//图标

int icno[] ={ R.drawable.i1, R.drawable.i2, R.drawable.i3,

R.drawable.i4, R.drawable.i5, R.drawable.i6, R.drawable.i7,

R.drawable.i8, R.drawable.i9, R.drawable.i10, R.drawable.i11, R.drawable.i12 };

//图标下的文字

String name[]={"时钟","信号","宝箱","秒钟","大象","FF","记事本","书签","印象","商店","主题","迅雷"};

dataList = new ArrayList>();

for (int i = 0; i

Map map=new HashMap();

map.put("img", icno[i]);

map.put("text",name[i]);

dataList.add(map);

}

}

}

GridView主布局文件activity_main.xml

android:id="@+id/gridview"android:layout_width="match_parent"android:layout_height="wrap_content"android:columnWidth="80dp"android:stretchMode="spacingWidthUniform"android:numColumns="3"

/>

列表项布局gridview_item.xml

android:id="@+id/img"android:layout_width="60dp"android:layout_height="60dp"android:layout_marginTop="10dp"android:src="@drawable/ic_launcher" />

android:id="@+id/text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="2dp"android:layout_gravity="center"android:textColor="#FFF"android:text="文字"

/>

只显示一行的问题

格外注意！如果你是滚动布局(ListView、ScrollView等等)包裹GridView，就出现不会自动换行的问题。这个时候需要你如下自定义view。

packagecom.weijie.app_user.activity.order;

importandroid.content.Context;

importandroid.util.AttributeSet;

importandroid.widget.GridView;

public class MyGridView extendsGridView {

publicMyGridView(Context context, AttributeSet attrs) {

super(context, attrs);

}

publicMyGridView(Context context) {

super(context);

}

public MyGridView(Context context, AttributeSet attrs, intdefStyle) {

super(context, attrs, defStyle);

}

@Override

public void onMeasure(int widthMeasureSpec, intheightMeasureSpec) {

int expandSpec =MeasureSpec.makeMeasureSpec(

Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);

super.onMeasure(widthMeasureSpec, expandSpec);

}

}

原文：https://www.cnblogs.com/guanxinjing/p/12605374.html