Android 继承BaseAdapter适配器中的getView方法，导致的ListView条目出现重复解决办法(转载)
出现该问题原因为在设置每个条目的值的时候，将设定值的代码放在了判断语句里面，导致有些条目会重复。
对list不清楚导致的错误，特标记之。
错误代码如下，设置应用名称下面的几行值，实践证明，他们的赋值需要在判断条件以外：
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public
View getView(
int
position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stubLog.i(TAG, "getView position = " + position);
ViewHolder viewHolder =
new
ViewHolder();
if
(convertView ==
null
) {
convertView = mInflater.inflate(R.layout.apps_list_item,
null
);
viewHolder.cb_installed = (CheckBox) convertView
.findViewById(R.id.cb_checkedApp);
viewHolder.iv_appIcon = (ImageView) convertView
.findViewById(R.id.iv_app_icon);
viewHolder.tv_appName = (TextView) convertView
.findViewById(R.id.tv_app_name);
// 设置应用名称
String mAppName = mData.get(position);
Log.i(
"new"
,
"position "
+ position +
" mAppName = "
+ mAppName);
viewHolder.iv_appIcon.setImageResource(R.drawable.ic_launcher);
viewHolder.tv_appName.setText(mAppName);
viewHolder.cb_installed.setChecked(isSelected.get(position));
convertView.setTag(viewHolder);
}
else
{
viewHolder = (ViewHolder)convertView.getTag();
}
return
convertView;
}
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将这些赋值放在外面，修改后如下，正常了。
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public
View getView(
int
position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stubLog.i(TAG, "getView position = " + position);
ViewHolder viewHolder =
new
ViewHolder();
if
(convertView ==
null
) {
convertView = mInflater.inflate(R.layout.apps_list_item,
null
);
viewHolder.cb_installed = (CheckBox) convertView
.findViewById(R.id.cb_checkedApp);
viewHolder.iv_appIcon = (ImageView) convertView
.findViewById(R.id.iv_app_icon);
viewHolder.tv_appName = (TextView) convertView
.findViewById(R.id.tv_app_name);
convertView.setTag(viewHolder);
}
else
{
viewHolder = (ViewHolder)convertView.getTag();
}
// 设置应用名称
String mAppName = mData.get(position);
Log.i(
"new"
,
"position "
+ position +
" mAppName = "
+ mAppName);
viewHolder.iv_appIcon.setImageResource(R.drawable.ic_launcher);
viewHolder.tv_appName.setText(mAppName);
viewHolder.cb_installed.setChecked(isSelected.get(position));
return
convertView;
}
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本文转自 我不会抽烟 51CTO博客，原文链接：http://blog.51cto.com/zhouhongyu1989/1417823，如需转载请自行联系原作者
