[Android开发学习29]界面控件之列表控件(ListView)--显示图片和文本
一、目标效果如下:
二、代码实现:
1.“Activity_11\src\yan\activity_11\MainActivity.java”
[java]
<STRONG>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;
}
}
}
</STRONG>
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.s
补充:移动开发 , Android ,