Android GridView 横向滚动一行显示

2012-06-07 21:58:36|分类： Android |字号订阅

都知道gridview和listview是android比较重要的数据组件，

接到一个横向显示数据的任务，头大半天，最后只能用gridview试试了。呵呵，费了N多脑细胞，搞定。

下面有源码下载

=====

布局文件main.xml
<?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"
android:background="#FFFFFF"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="向右滑动"
android:textColor="#000000"
android:textSize="20dip"/>
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#CCCCCC">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<GridView
android:id="@+id/gridView"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>

类文件MainActivity.java

package com.test;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.LinearLayout.LayoutParams;
public class MainActivity extends Activity {
private GridView gridView;
private List<Item> itemList;
private MyListAdapter adapter;
private ItemClickEvent listener;
private MyHandler handler;

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.main);
gridView = (GridView) findViewById(R.id.gridView);
handler = new MyHandler();
new Thread() {
public void run() {
itemList = new ArrayList<Item>();
for(int i=0;i<10;i++){
Item item = new Item("北极熊生存如履薄冰" + i,"如果我们从现在开始就采取措施降低气温" + i);
itemList.add(item);
}
Message msg = Message.obtain();
msg.what = 1;
handler.sendMessage(msg);
}
}.start();
}

private class MyHandler extends Handler{
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
if ((itemList == null) || (itemList.size() == 0)) {
return;
} else {
LayoutParams params = new LayoutParams(itemList.size() * (420 + 6), LayoutParams.WRAP_CONTENT);
gridView.setLayoutParams(params);
gridView.setColumnWidth(420);
gridView.setHorizontalSpacing(6);
gridView.setStretchMode(GridView.NO_STRETCH);
gridView.setNumColumns(itemList.size());

adapter = new MyListAdapter(MainActivity.this);
listener = new ItemClickEvent();
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(listener);
}
break;
}
}
}

private class MyListAdapter extends BaseAdapter {
private final String TAG = "MyListAdapter";
private LayoutInflater mInflater;
private final Context context;
public MyListAdapter(Context context) {
this.context = context;
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return itemList.size();
}
public Object getItem(int position) {
return itemList.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
Item item = itemList.get(position);
CellHolder cellHolder;
if (convertView == null) {
cellHolder = new CellHolder();
convertView = mInflater.inflate(R.layout.item, null);
cellHolder.ivIcon = (ImageView) convertView.findViewById(R.id.ivIcon);
cellHolder.tvTitle = (TextView) convertView.findViewById(R.id.tvTitle);
cellHolder.tvContent = (TextView) convertView.findViewById(R.id.tvContent);
convertView.setTag(cellHolder);
}else{
cellHolder = (CellHolder) convertView.getTag();
}
cellHolder.ivIcon.setImageResource(R.drawable.bear);
cellHolder.tvTitle.setText(item.getTitle());
cellHolder.tvContent.setText(item.getContent());
return convertView;
}
}

private class CellHolder{
ImageView ivIcon;
TextView tvTitle;
TextView tvContent;
}

private class ItemClickEvent implements OnItemClickListener{
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {

}

}
}

Item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android=" http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dip"
android:background="#FFFFFF">
<ImageView
android:id="@+id/ivIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/icon"
android:layout_marginRight="10dip"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="@+id/tvTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="标题标题标题标题标题"
android:textColor="#000000"
android:textSize="20dip"
android:textStyle="bold"/>
<TextView
android:id="@+id/tvContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="内容内容内容内容内容内容内容"
android:textColor="#000000"/>
</LinearLayout>
</LinearLayout>

源码下载 http://dl.vmall.com/c02ba4uulz

Android GridView 横向滚动一行显示

Android GridView 横向滚动一行显示

更多相关文章

随机推荐