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今天在智能停车场项目中需要实现PullToRefreshListView的单选功能,考虑到分页,刷新等,以前的实现方式是采用自己维护一个集合保存选中位置的选中状态,但这个方式比较繁琐,今天采用了listview的单选模式
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);来实现:
package com.centrvideo.parkapp.adapter;
import java.util.List;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import com.centrvideo.parkapp.demain.ExportInfo;
public class ExportAdapter extends MyBaseAdapter<ExportInfo, ListView> {
public ExportAdapter(Context context, List<ExportInfo> list) {
super(context, list);
}
@Override
public View getView(int position, View covertView, ViewGroup group) {
ChoiceListItemView view;
if (covertView == null) {
view = new ChoiceListItemView(context, null);
} else {
view = (ChoiceListItemView) covertView;
}
ExportInfo exportInfo = list.get(position);
view.setData(exportInfo);
return view;
}
}
package com.centrvideo.parkapp.adapter;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.centrvideo.parkapp.R;
import com.centrvideo.parkapp.demain.ExportInfo;
import com.centrvideo.parkapp.util.ImageLoaderUtils;
import com.lidroid.xutils.ViewUtils;
import com.lidroid.xutils.view.annotation.ViewInject;
public class ChoiceListItemView extends LinearLayout implements Checkable {
@ViewInject(R.id.listview_export_image)
private ImageView listview_export_image;
@ViewInject(R.id.listview_export_entrytime)
private TextView listview_export_entrytime;
@ViewInject(R.id.listview_export_number)
private TextView listview_export_number;
@ViewInject(R.id.listview_entry_time)
private TextView listview_entry_time;
@ViewInject(R.id.cb_export)
public CheckBox selectBtn;
private ImageLoaderUtils imageLoaderUtils;
public ChoiceListItemView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater inflater = LayoutInflater.from(context);
View v = inflater.inflate(R.layout.listview_export, this, true);
ViewUtils.inject(v);
imageLoaderUtils = ImageLoaderUtils.newInstance();
}
public void setData(ExportInfo exportInfo) {
imageLoaderUtils.loadImage(exportInfo.getEntryimg(),
listview_export_image, R.drawable.cell_hold);
listview_export_entrytime.setText("入口时间:"
+ exportInfo.getEntrytime() + "");
listview_export_number.setText("车牌号码:"
+ exportInfo.getPlatenumber() + "");
listview_entry_time.setText("位置:" + exportInfo.getGatewayname()
+ "");
}
@Override
public boolean isChecked() {
return selectBtn.isChecked();
}
@Override
public void setChecked(boolean checked) {
selectBtn.setChecked(checked);
//根据是否选中来选择不同的背景图片
if (checked) {
selectBtn.setBackgroundResource(R.drawable.cheliangduibi_queding);
} else {
selectBtn.setBackgroundResource(0);
}
}
@Override
public void toggle() {
selectBtn.toggle();
}
}
//启用单选模式
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
//获得选中结果;通过listView.getCheckedItemPosition();//活动被选中的位置
case R.id.tv_titlebar_right:
if (CommonUtil.isFastDoubleClick()) {
return;
}
int selectPosition = listView.getCheckedItemPosition();
CommonUtil.StartToast(ExportSureListActivity.this,"被选中的位置:"+selectPosition);
ExportInfo exportInfo = list1.get(selectPosition-1);//注意这里需要减1
CommonUtil.StartToast(ExportSureListActivity.this,"被选中的位置:"+exportInfo.toString());
// intent = new Intent(ExportSureListActivity.this,
// ChargeActivity.class);
// startActivity(intent);
break;
}
http://www.cnblogs.com/xiaoxiao-study/p/a1e1561444542d99b70e781be488f35e.html
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原文地址:http://www.cnblogs.com/softidea/p/4822152.html