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最近写了个上一页下一页显示Demo,感觉还是比较好实现!通过设置listview的每页item显示的个数,然后控制返回item的count实现点击按钮上一页下一页效果.
一,布局文件(若是想实现滑动的上一页和下一页切换直接使用ViewPager嵌套listview)
二,实现代码,这个demo做的是当在第一页时隐藏上一页按钮,最后一页时隐藏下一页按钮.中间上一页按钮和下一页按钮皆显示.
package com.tstest.www.pagershow;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private List list=new ArrayList();
private String name[]={"gaga","嘎嘎","他们吗","发密码","摩尔玛","陪我"};
private ListViewAdapter adapter;
private Button prePager, nexPager;
private TextView num;
private NearlySearchBean nearlySearchBean;
int index=0;
int pagerCount=4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
prePager = (Button) findViewById(R.id.pre_pager);
nexPager = (Button) findViewById(R.id.nex_pager);
num = (TextView) findViewById(R.id.num);
ListView listView = (ListView) findViewById(R.id.lv);
for (int i = 0; i < name.length; i++) {
nearlySearchBean = new NearlySearchBean();
nearlySearchBean.setName(name[i]);
list.add(nearlySearchBean);
}
prePager.setOnClickListener(this);
nexPager.setOnClickListener(this);
adapter = new ListViewAdapter();
listView.setAdapter(adapter);
prePager.setVisibility(View.INVISIBLE);
num.setText(index+1+"/"+(int) Math.ceil((double)list.size()/pagerCount));
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.pre_pager:
prePager();
break;
case R.id.nex_pager:
nexPager();
break;
}
}
private void nexPager() {
index++;
System.out.println(index+"nexPager");
num.setText(index+1+"/"+(int) Math.ceil((double)list.size()/pagerCount));
adapter .notifyDataSetChanged();
//隐藏上一个或下一个按钮
checkButton();
}
private void checkButton() {
if (index |