XlistView+自定義介面
阿新 • • 發佈：2018-11-21
Mainactivity
import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.support.v7.app.AppCompatActivity; import com.example.day9_xlistviewcustom.adapter.MyAdapter; import com.example.day9_xlistviewcustom.bean.MyBean; import com.example.day9_xlistviewcustom.util.HttpUtil; import com.example.xlistviewflush.view.XListView; import com.google.gson.Gson; import java.io.IOException; import java.util.ArrayList; import java.util.Date; import java.util.List; public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener { private MyAdapter adapter; private XListView xListView; private List<MyBean.DataBean> data = new ArrayList<>(); private int i = 1; private String mUrl = "http://www.xieast.com/api/news/news.php?page="; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); //上拉下拉 必寫 xListView.setPullLoadEnable(true); xListView.setXListViewListener(this); adapter = new MyAdapter(this, data); xListView.setAdapter(adapter); new MyTask().execute(mUrl + i); } private void initView() { xListView = findViewById(R.id.xListView); } //重新整理 @Override public void onRefresh() { new Handler().postDelayed(new Runnable() { @Override public void run() { new MyTask().execute(mUrl + 1); data.clear(); close(); } }, 2000); } //載入更多 @Override public void onLoadMore() { new Handler().postDelayed(new Runnable() { @Override public void run() { new MyTask().execute(mUrl + (++i)); } }, 2000); } //非同步解析 class MyTask extends AsyncTask<String, Void, List<MyBean.DataBean>> { @Override protected List<MyBean.DataBean> doInBackground(String... strings) { String str = null; try { str = HttpUtil.getData(strings[0]); Gson gson = new Gson(); MyBean myBean = gson.fromJson(str, MyBean.class); return myBean.getData(); } catch (IOException e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(List<MyBean.DataBean> dataBeans) { super.onPostExecute(dataBeans); List<MyBean.DataBean> data = adapter.getData(); dataBeans.addAll(data); adapter.setData(dataBeans); close(); } } //關閉 private void close() { xListView.stopLoadMore(); xListView.stopRefresh(); //顯示上一次的重新整理日期 Date date = new Date(); String dateStr = (String) android.text.format.DateFormat.format("EEEE, MMMM dd日, yyyy kk:mm:ss", date); xListView.setRefreshTime(dateStr); } }
HttpUtil工具類 解析
注意聯網許可權
android:name="android.permission.INTERNET
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; //工具類 public class HttpUtil { public static String getData(String mUrl) throws IOException { //路徑 URL url = new URL(mUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); InputStream inputStream = connection.getInputStream(); String str = getStr(inputStream); return str; } private static String getStr(InputStream inputStream) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(inputStream)); String con = ""; StringBuffer sb = new StringBuffer(); while ((con = br.readLine()) != null) { sb.append(con); } return sb.toString(); } }
bean類
package com.example.day9_xlistviewcustom.bean; import java.util.List; public class MyBean { private String msg; private int code; private List<DataBean> data; public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public int getCode() { return code; } public void setCode(int code) { this.code = code; } public List<DataBean> getData() { return data; } public void setData(List<DataBean> data) { this.data = data; } public static class DataBean { private String uniquekey; private String title; private String date; private String category; private String author_name; private String url; private String thumbnail_pic_s; private String thumbnail_pic_s02; private String thumbnail_pic_s03; public String getUniquekey() { return uniquekey; } public void setUniquekey(String uniquekey) { this.uniquekey = uniquekey; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getDate() { return date; } public void setDate(String date) { this.date = date; } public String getCategory() { return category; } public void setCategory(String category) { this.category = category; } public String getAuthor_name() { return author_name; } public void setAuthor_name(String author_name) { this.author_name = author_name; } public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } public String getThumbnail_pic_s() { return thumbnail_pic_s; } public void setThumbnail_pic_s(String thumbnail_pic_s) { this.thumbnail_pic_s = thumbnail_pic_s; } public String getThumbnail_pic_s02() { return thumbnail_pic_s02; } public void setThumbnail_pic_s02(String thumbnail_pic_s02) { this.thumbnail_pic_s02 = thumbnail_pic_s02; } public String getThumbnail_pic_s03() { return thumbnail_pic_s03; } public void setThumbnail_pic_s03(String thumbnail_pic_s03) { this.thumbnail_pic_s03 = thumbnail_pic_s03; } } }
多條目 介面卡
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.example.day9_xlistviewcustom.R;
import com.example.day9_xlistviewcustom.bean.MyBean;
import java.util.List;
public class MyAdapter extends BaseAdapter {
private Context mContext;
private List<MyBean.DataBean> data;
//兩個值不能一樣
private final int ITEM_ONE = 0;
private final int ITEM_TWO = 1;
public MyAdapter(Context mContext, List<MyBean.DataBean> data) {
this.mContext = mContext;
this.data = data;
}
public void setData(List<MyBean.DataBean> data) {
this.data = data;
notifyDataSetChanged();
}
public List<MyBean.DataBean> getData() {
return data;
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
HolderOne holderOne;
HolderTwo holderTwo;
int type = getItemViewType(position);
switch (type) {
case ITEM_ONE:
if (convertView == null) {
convertView = View.inflate(mContext, R.layout.item_one, null);
holderOne = new HolderOne();
holderOne.Img_ONE = convertView.findViewById(R.id.Img_ONE);
holderOne.Text_ONE = convertView.findViewById(R.id.Text_ONE);
convertView.setTag(holderOne);
} else {
holderOne = (HolderOne) convertView.getTag();
}
holderOne.Text_ONE.setText(data.get(position).getTitle());
Glide.with(mContext).load(data.get(position).getThumbnail_pic_s()).into(holderOne.Img_ONE);
break;
case ITEM_TWO:
if (convertView == null) {
convertView = View.inflate(mContext, R.layout.item_two, null);
holderTwo = new HolderTwo();
holderTwo.Img_TWO = convertView.findViewById(R.id.Img_TWO);
holderTwo.Text_TWO = convertView.findViewById(R.id.Text_TWO);
convertView.setTag(holderTwo);
} else {
holderTwo = (HolderTwo) convertView.getTag();
}
holderTwo.Text_TWO.setText(data.get(position).getTitle());
Glide.with(mContext).load(data.get(position).getThumbnail_pic_s()).into(holderTwo.Img_TWO);
break;
}
return convertView;
}
@Override
public int getViewTypeCount() {
return 2;
}
//返回型別
@Override
public int getItemViewType(int position) {
if (position % 2 == 0) {
return ITEM_ONE;
} else {
return ITEM_TWO;
}
}
class HolderOne {
TextView Text_ONE;
ImageView Img_ONE;
}
class HolderTwo {
TextView Text_TWO;
ImageView Img_TWO;
}
}
XListView 主佈局
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.example.xlistviewflush.view.XListView
android:id="@+id/xListView"
android:layout_width="match_parent"
android:layout_height="match_parent"></com.example.xlistviewflush.view.XListView>
</android.support.constraint.ConstraintLayout>
item_one佈局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/Img_ONE"
android:layout_width="50dp"
android:layout_height="50dp" />
<TextView
android:id="@+id/Text_ONE"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
item_two佈局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/Img_TWO"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentRight="true" />
<TextView
android:id="@+id/Text_TWO"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>