Android GridView的应用举例
Android GridView的应用举例
Android GridView的应用举例AppMain.java
- package lxy.litsoft;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import android.app.Activity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.GridView;
- import android.widget.SimpleAdapter;
- import android.widget.AdapterView.OnItemClickListener;
- import android.widget.Toast;
- public class AppMain extends Activity implements OnItemClickListener{
- private GridView testGridView; //声明一个GridView
- public List<Map<String, Object>> listForGridView = new ArrayList<Map<String, Object>>();
- SimpleAdapter adapter = null;
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- //GridView测试
- testGridView();
- }
- private void testGridView(){
- testGridView = (GridView) findViewById(R.id.myGridView1);
- testGridView.setNumColumns(4); //设置列数为4
- for(int i = 0; i < 10; i++){
- Map<String, Object> item = new HashMap<String, Object>();
- item.put("image", R.drawable.icon);
- item.put("text", "Pic"+i);
- listForGridView.add(item);
- }
- //实例一个GridView的适配器
- adapter = new SimpleAdapter(
- this, listForGridView, R.layout.meeting,
- new String[]{"image", "text"},
- new int[]{ R.id.image_item, R.id.text_item});
- testGridView.setAdapter(adapter); //添加适配器
- testGridView.setOnItemClickListener(this); //添加点击监听器
- }
- //GridView的监听器
- public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
- Toast.makeText(AppMain.this, "你点击的是第"+arg2+"个Item", Toast.LENGTH_LONG).show();
- }
- }
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout android:id="@+id/RelativeLayout01"
- android:layout_width="fill_parent" android:layout_height="fill_parent"
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical">
- <ImageView android:id="@+id/image_item" android:layout_width="wrap_content"
- android:layout_height="wrap_content" android:layout_gravity="center_horizontal">
- </ImageView>
- <TextView android:id="@+id/text_item" android:layout_width="wrap_content"
- android:layout_height="wrap_content" android:textSize="20sp"
- android:layout_gravity="center_horizontal" />
- </LinearLayout>
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- >
- <TextView
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:text="@string/hello"
- />
- <GridView
- android:id="@+id/myGridView1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:horizontalSpacing="20dp"
- android:verticalSpacing="20dp"
- ></GridView>
- </LinearLayout>
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