//需要创建依赖类BaseAdapter
public class MyAdite extends BaseAdapter {
public MyAdite(List<Bena> benas, Context context) {
this.benas = benas;
this.context = context;
}
List<Bena> benas;
Context context;
@Override
public int getCount() { //显示数据
return benas.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder=new ViewHolder() ;//创建
if(convertView==null)
{
viewHolder=new ViewHolder(); //这样子会更快首次进来的时候会默认创建一个
convertView= LayoutInflater.from(context).inflate(R.layout.list_item,parent,false);
viewHolder.textView=convertView.findViewById(R.id.tv);
convertView.setTag(viewHolder);
}
else
{
viewHolder= (ViewHolder) convertView.getTag(); //对下面绑定
}
viewHolder.textView.setText(benas.get(position).getName()); //按钮获取他的名字 这样子节省时间
//Log.e("leo",)
return convertView;
}
private final class ViewHolder
{
TextView textView;
}
}
图形文件1
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical">
<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
设置文件间距
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"/>
</LinearLayout>
<!--
android:textSize="30sp"
设置间距为30sp
/>-->
模型层:用来显示按钮
package com.example.listview_xiahua_2;
public class Bena {
String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
//设置开始的类
public class MainActivity extends AppCompatActivity {
private List<Bena> benas=new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
for(int i=0;i<100;i++)
{
Bena b1=new Bena();
b1.setName("控件"+i);
benas.add(b1);
}
ListView listView = findViewById(R.id.lv); //获取一开始的ListVeiw
listView.setAdapter(new MyAdite(benas,this)); //需要继承于BaseAdapter 然后吧自己传输进去
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { //获取点击事件
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) { //接收到点击的是第几个
Log.e("leoo","弹出"+position); //position获取当前点击的是第几个
}
});
}
}
实现图片 可以用来滑动
实现图
//
