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安卓（Android）ListView 显示图片文字

2019年07月24日  | 移动技术网IT编程  | 我要评论

九阴真经天梯赛,德州扑克基米国际棋牌,托普穆勒

一.代码实现

1.  “activity_11\src\yan\activity_11\mainactivity.java”

package yan.activity_11; 
 
import android.os.bundle; 
import android.app.activity; 
import android.content.context; 
import android.view.layoutinflater; 
import android.view.view; 
import android.view.viewgroup; 
import android.widget.baseadapter; 
import android.widget.imageview; 
import android.widget.listview; 
import android.widget.textview; 
 
public class mainactivity extends activity { 
  listview listview; 
  string [] titles={"标题1","标题2","标题3","标题4"}; 
  string [] texts={"文本内容a","文本内容b","文本内容c","文本内容d"}; 
  int [] resids={r.drawable.icon,r.drawable.icon,r.drawable.icon,r.drawable.icon}; 
   
  @override 
  protected void oncreate(bundle savedinstancestate) { 
    super.oncreate(savedinstancestate); 
    setcontentview(r.layout.main); 
    this.settitle("baseadapter for listview"); 
    listview=(listview)this.findviewbyid(r.id.mylistview); 
    listview.setadapter(new listviewadapter(titles,texts,resids)); 
  } 
   
  public class listviewadapter extends baseadapter{ 
    view [] itemviews; 
     
    public listviewadapter(string [] itemtitles, string [] itemtexts, 
        int [] itemimageres){ 
      itemviews = new view[itemtitles.length]; 
       
      for (int i=0; i<itemviews.length; ++i){ 
        itemviews[i] = makeitemview(itemtitles[i], itemtexts[i], 
            itemimageres[i]); 
      } 
    } 
     
    public int getcount()  { 
      return itemviews.length; 
    } 
     
    public view getitem(int position)  { 
      return itemviews[position]; 
    } 
     
    public long getitemid(int position) { 
      return position; 
    } 
     
    private view makeitemview(string strtitle, string strtext, int resid) { 
      layoutinflater inflater = (layoutinflater)mainactivity.this 
          .getsystemservice(context.layout_inflater_service); 
       
      // 使用view的对象itemview与r.layout.item关联 
      view itemview = inflater.inflate(r.layout.listview_item, null); 
       
      // 通过findviewbyid()方法实例r.layout.item内各组件 
      textview title = (textview)itemview.findviewbyid(r.id.itemtitle); 
      title.settext(strtitle); 
      textview text = (textview)itemview.findviewbyid(r.id.itemtext); 
      text.settext(strtext); 
      imageview image = (imageview)itemview.findviewbyid(r.id.itemimage); 
      image.setimageresource(resid); 
       
      return itemview; 
    } 
     
    public view getview(int position, view convertview, viewgroup parent) { 
      if (convertview == null) 
        return itemviews[position]; 
      return convertview; 
    } 
  } 
}

2.package yan.activity_11;

import android.os.bundle;
import android.app.activity;
import android.content.context;
import android.view.layoutinflater;
import android.view.view;
import android.view.viewgroup;
import android.widget.baseadapter;
import android.widget.imageview;
import android.widget.listview;
import android.widget.textview;

public class mainactivity extends activity {
 listview listview;
 string [] titles={"标题1","标题2","标题3","标题4"};
 string [] texts={"文本内容a","文本内容b","文本内容c","文本内容d"};
 int [] resids={r.drawable.icon,r.drawable.icon,r.drawable.icon,r.drawable.icon};
 
 @override
 protected void oncreate(bundle savedinstancestate) {
 super.oncreate(savedinstancestate);
 setcontentview(r.layout.main);
 this.settitle("baseadapter for listview");
 listview=(listview)this.findviewbyid(r.id.mylistview);
 listview.setadapter(new listviewadapter(titles,texts,resids));
 }
 
 public class listviewadapter extends baseadapter{
 view [] itemviews;
 
 public listviewadapter(string [] itemtitles, string [] itemtexts,
  int [] itemimageres){
  itemviews = new view[itemtitles.length];
  
  for (int i=0; i<itemviews.length; ++i){
  itemviews[i] = makeitemview(itemtitles[i], itemtexts[i],
   itemimageres[i]);
  }
 }
 
 public int getcount() {
  return itemviews.length;
 }
 
 public view getitem(int position) {
  return itemviews[position];
 }
 
 public long getitemid(int position) {
  return position;
 }
 
 private view makeitemview(string strtitle, string strtext, int resid) {
  layoutinflater inflater = (layoutinflater)mainactivity.this
   .getsystemservice(context.layout_inflater_service);
  
  // 使用view的对象itemview与r.layout.item关联
  view itemview = inflater.inflate(r.layout.listview_item, null);
  
  // 通过findviewbyid()方法实例r.layout.item内各组件
  textview title = (textview)itemview.findviewbyid(r.id.itemtitle);
  title.settext(strtitle);
  textview text = (textview)itemview.findviewbyid(r.id.itemtext);
  text.settext(strtext);
  imageview image = (imageview)itemview.findviewbyid(r.id.itemimage);
  image.setimageresource(resid);
  
  return itemview;
 }
 
 public view getview(int position, view convertview, viewgroup parent) {
  if (convertview == null)
  return itemviews[position];
  return convertview;
 }
 }
}

二.“activity_11\res\layout\main.xml”

<?xml version="1.0" encoding="utf-8"?>  
<linearlayout  
    android:id="@+id/linearlayout01"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    xmlns:android="http://schemas.android.com/apk/res/android">  
      
    <listview android:layout_width="wrap_content"  
         android:layout_height="wrap_content"  
         android:id="@+id/mylistview">  
    </listview>  
</linearlayout> 

<?xml version="1.0" encoding="utf-8"?> 
<linearlayout 
    android:id="@+id/linearlayout01" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    xmlns:android="http://schemas.android.com/apk/res/android"> 
     
    <listview android:layout_width="wrap_content" 
         android:layout_height="wrap_content" 
         android:id="@+id/mylistview"> 
    </listview> 
</linearlayout>

三.“activity_11\res\layout\listview_item.xml”

<?xml version="1.0" encoding="utf-8"?>   
<relativelayout   
     android:layout_width="fill_parent"   
     xmlns:android="http://schemas.android.com/apk/res/android"   
     android:layout_height="wrap_content"   
     android:paddingbottom="4dip"   
     android:paddingleft="12dip">   
     <imageview   
        android:layout_width="wrap_content"   
        android:id="@+id/itemimage" 
        android:layout_height="fill_parent">   
     </imageview>   
     <textview   
        android:text="textview01"   
        android:layout_height="wrap_content"   
        android:layout_width="fill_parent"   
        android:id="@+id/itemtitle" 
        android:layout_torightof="@+id/itemimage" 
        android:textsize="20dip">   
     </textview>   
     <textview   
        android:text="textview02"   
        android:layout_height="wrap_content"   
        android:layout_width="fill_parent"   
        android:id="@+id/itemtext" 
        android:layout_torightof="@+id/itemimage" 
        android:layout_below="@+id/itemtitle">   
     </textview>   
</relativelayout> 
<?xml version="1.0" encoding="utf-8"?>  
<relativelayout  
     android:layout_width="fill_parent"  
     xmlns:android="http://schemas.android.com/apk/res/android"  
     android:layout_height="wrap_content"  
     android:paddingbottom="4dip"  
     android:paddingleft="12dip">  
     <imageview  
        android:layout_width="wrap_content"  
        android:id="@+id/itemimage"
        android:layout_height="fill_parent">  
     </imageview>  
     <textview  
        android:text="textview01"  
        android:layout_height="wrap_content"  
        android:layout_width="fill_parent"  
        android:id="@+id/itemtitle"
        android:layout_torightof="@+id/itemimage"
        android:textsize="20dip">  
     </textview>  
     <textview  
        android:text="textview02"  
        android:layout_height="wrap_content"  
        android:layout_width="fill_parent"  
        android:id="@+id/itemtext"
        android:layout_torightof="@+id/itemimage"
        android:layout_below="@+id/itemtitle">  
     </textview>  
</relativelayout>

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