我必须显示具有不同视图类型的列表.因此,我必须定义一个带有适配器的ListView,在其中必须膨胀多个视图.我已经经历了example,但是问题是我的列表不对称,就像示例在4个项目之后每次重复标题一样.所以我面临在getView()中重复使用项目的问题

public View getView(int position, View convertView, ViewGroup parent) {

int type = getItemViewType(position);

if (convertView == null) {

holder = new ViewHolder();

switch (type) {

case TYPE_1:

convertView = mInflater.inflate(R.layout.item1, null);

.......

break;

case TYPE_2:

convertView = mInflater.inflate(R.layout.item2, null);

.......

break;

}

convertView.setTag(holder);

} else {

holder = (ViewHolder)convertView.getTag();

}

............

............

}

现在,如果convertView不为null,但是之前使用的项类型不同,则布局将不匹配.此代码将如何处理此问题？

解决方法:

您可以查看此示例适配器. getViewTypeCount方法返回您的不同类型的行. getItemViewType方法,如果position等于0,则对第一行布局进行膨胀,否则对其他行布局进行膨胀.您可以自定义此代码示例.

import java.util.List;

import android.app.Activity;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

/**

* Created by MustafaS on 9.2.2015.

*/

public class CustomArrayAdapter extends ArrayAdapter {

@Override

public int getItemViewType(int position) {

if (position == 0) {

return 0;

}

else {

return 1;

}

}

@Override

public int getViewTypeCount() {

return 2;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

int type = getItemViewType(position);

if (type == 0) {

if (convertView == null) {

convertView = LayoutInflater.from(activity).inflate(R.layout.listview_first_row, parent, false);

viewHolderFirst = new ViewHolderFirst();

convertView.setTag(viewHolderFirst);

}

else {

viewHolderFirst = (ViewHolderFirst) convertView.getTag();

}

}

else {

if (convertView == null) {

convertView = LayoutInflater.from(activity).inflate(R.layout.listview_other_row, parent, false);

viewHolder = new ViewHolder();

}

else {

viewHolder = (ViewHolder) convertView.getTag();

}

}

return convertView;

}

protected class ViewHolderFirst {

private RunnableViewPager pager;

private CircleIndicator indicator;

}

protected class ViewHolder {

private ImageView imageviewRestaurant;

private TextView textviewRestaurantName;

private TextView textviewType;

private TextView textviewPrice;

private TextView textviewDistance;

private ImageView imageviewCall;

private ImageView imageviewCalendar;

}

}

标签：layout-inflater,listview,baseadapter,getview,android

来源： https://codeday.me/bug/20191120/2044615.html