Android(安卓)中GridView上图下字、GridView显示文字
16lz
2021-01-24
http://blog.csdn.net/aminfo/article/details/7622020
效果图如下:
代码:
gridview.xml
- <?xmlversion="1.0"encoding="utf-8"?>
- <GridViewxmlns:android="http://schemas.android.com/apk/res/android"
- android:id="@+id/gridview"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- android:numColumns="auto_fit"
- android:verticalSpacing="10dp"
- android:horizontalSpacing="10dp"
- android:columnWidth="90dp"
- android:stretchMode="columnWidth"
- android:gravity="center"
- />
item.xml
[html] view plain copy- <?xmlversion="1.0"encoding="utf-8"?>
- <RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_height="wrap_content"
- android:layout_width="fill_parent"
- android:paddingBottom="4dip"
- >
- <ImageView
- android:id="@+id/ItemImage"
- android:layout_height="wrap_content"
- android:layout_width="wrap_content"
- android:layout_centerHorizontal="true"
- />
- <TextView
- android:id="@+id/ItemText"
- android:layout_width="wrap_content"
- android:layout_below="@+id/ItemImage"
- android:layout_height="wrap_content"
- android:layout_centerHorizontal="true"
- android:text="TextView01"
- />
- </RelativeLayout>
TestGridView.java
- packagecom.test;
- importjava.util.ArrayList;
- importjava.util.HashMap;
- importandroid.app.Activity;
- importandroid.os.Bundle;
- importandroid.view.View;
- importandroid.widget.AdapterView;
- importandroid.widget.AdapterView.OnItemClickListener;
- importandroid.widget.GridView;
- importandroid.widget.SimpleAdapter;
- publicclassTestGridViewextendsActivity{
- privateGridViewgridview;
- publicvoidonCreate(BundlesavedInstanceState){
- super.onCreate(savedInstanceState);
- setContentView(R.layout.gridview);
- gridview=(GridView)findViewById(R.id.gridview);
- //生成动态数组,并且转入数据
- ArrayList<HashMap<String,Object>>lstImageItem=newArrayList<HashMap<String,Object>>();
- for(inti=0;i<10;i++){
- HashMap<String,Object>map=newHashMap<String,Object>();
- map.put("ItemImage",R.drawable.icon);//添加图像资源的ID
- map.put("ItemText","NO."+String.valueOf(i));//按序号做ItemText
- lstImageItem.add(map);
- }
- //生成适配器的ImageItem<====>动态数组的元素,两者一一对应
- SimpleAdaptersaImageItems=newSimpleAdapter(this,//没什么解释
- lstImageItem,//数据来源
- R.layout.item,//night_item的XML实现
- //动态数组与ImageItem对应的子项
- newString[]{"ItemImage","ItemText"},
- //ImageItem的XML文件里面的一个ImageView,两个TextViewID
- newint[]{R.id.ItemImage,R.id.ItemText});
- //添加并且显示
- gridview.setAdapter(saImageItems);
- //添加消息处理
- gridview.setOnItemClickListener(newItemClickListener());
- }
- //当AdapterView被单击(触摸屏或者键盘),则返回的Item单击事件
- classItemClickListenerimplementsOnItemClickListener{
- publicvoidonItemClick(AdapterView<?>arg0,//TheAdapterViewwheretheclickhappened
- Viewarg1,//TheviewwithintheAdapterViewthatwasclicked
- intarg2,//Thepositionoftheviewintheadapter
- longarg3//Therowidoftheitemthatwasclicked
- ){
- //在本例中arg2=arg3
- @SuppressWarnings("unchecked")
- HashMap<String,Object>item=(HashMap<String,Object>)arg0.getItemAtPosition(arg2);
- //显示所选Item的ItemText
- setTitle((String)item.get("ItemText"));
- }
- }
- }
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