标签:android listview horizontalscrollview listviewhorizontalsc android动态添加图片
Android HorizontalScrollView 水平滑动 listview 上动态添加图片
最近遇到了个 在listview展示广告的需要动态添加图片
如图:
使用了 horizontalScrollView 在listview上进行添加
java代码:
package com.baozi.bzhorizontalscrollview; import java.util.ArrayList; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.text.TextUtils; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; public class MainActivity extends Activity { private ListView lv; private View headerView; private LinearLayout header_ll; ArrayList<String> arrayList = new ArrayList<String>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lv = (ListView) findViewById(R.id.lv); headerView = LayoutInflater.from(this).inflate( R.layout.item_home_header, null); header_ll = (LinearLayout) headerView.findViewById(R.id.header_ll); for (int i = 0; i < 10; i++) { View coupon_home_ad_item = LayoutInflater.from(this).inflate( R.layout.home_item, null); ImageView icon = (ImageView) coupon_home_ad_item .findViewById(R.id.coupon_ad_iv);// 拿个这行的icon 就可以设置图片 final String href = "http://www.blog.csdn.net/aaawqqq"; if (!TextUtils.isEmpty(href)) { coupon_home_ad_item.setOnClickListener(new OnClickListener() {// 每个item的点击事件加在这里 @Override public void onClick(View v) { Uri uri = Uri.parse(href); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivity(intent); } }); } header_ll.addView(coupon_home_ad_item); } lv.addHeaderView(headerView);// 通过listview的addHeaderView方法 将header添加到 // listview里面 // listview的测试数据 for (int i = 0; i < 20; i++) { arrayList.add(i + " ------------- " + System.currentTimeMillis()); } ArrayAdapter adapter = new ArrayAdapter(this, R.layout.item, R.id.textView1, arrayList); lv.setAdapter(adapter); } }
xml代码:
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#f4f4f4" 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.baozi.bzhorizontalscrollview.MainActivity" > <ListView android:id="@+id/lv" android:layout_width="fill_parent" android:layout_height="fill_parent" > </ListView> </RelativeLayout>
<?xml version="1.0" encoding="UTF-8"?> <HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:ptr="http://schemas.android.com/apk/res-auto" android:id="@+id/coupon_home_ad_hv" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:scrollbars="none" > <LinearLayout android:id="@+id/header_ll" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="15dp" android:background="#dddddd" android:orientation="horizontal" > </LinearLayout> </HorizontalScrollView>
<?xml version="1.0" encoding="UTF-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:ptr="http://schemas.android.com/apk/res-auto" android:id="@+id/coupon_home_ad_ll" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:layout_marginTop="10dp" android:gravity="center" android:orientation="horizontal" > <ImageView android:id="@+id/coupon_ad_iv" android:layout_width="120dp" android:layout_height="90dp" android:layout_margin="4dp" android:background="@drawable/ic_launcher" android:scaleType="centerCrop" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="点我" android:textColor="#000000" android:textSize="20sp" /> <View android:layout_width="1dp" android:layout_height="90dp" android:background="#000000" /> </FrameLayout>
步骤:
首先加载 header
headerView = LayoutInflater.from(this).inflate(R.layout.item_home_header, null);
header_ll = (LinearLayout) headerView.findViewById(R.id.header_ll);
获取header里面的 LinearLayout
将服务器获取的imageview 通过for循环 add 到header上的linearlayout
添加点击事件等
不足之处请大家指正 谢谢
Android HorizontalScrollView 水平滑动 在listview上面动态添加图片
标签:android listview horizontalscrollview listviewhorizontalsc android动态添加图片
原文地址:http://blog.csdn.net/aaawqqq/article/details/25082417