Xlistview+多條目+上拉下拉重新整理載入+側滑
阿新 • • 發佈:2018-12-08
**
MainActivity頁面
**
package com.example.lx_module.activity; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.design.widget.BottomNavigationView; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.view.MenuItem; import android.widget.TextView; import com.example.lx_module.R; import com.example.lx_module.fragment.SFragment; import com.example.lx_module.fragment.WFragment; public class Main2Activity extends AppCompatActivity { private ViewPager viewPager; private ActionBar actionBar; private ActionBarDrawerToggle toggle; private DrawerLayout drawer; private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener = new BottomNavigationView.OnNavigationItemSelectedListener() { @Override public boolean onNavigationItemSelected(@NonNull MenuItem item) { switch (item.getItemId()) { case R.id.navigation_home: viewPager.setCurrentItem(0); return true; case R.id.navigation_dashboard: viewPager.setCurrentItem(1); return true; case R.id.navigation_notifications: viewPager.setCurrentItem(2); return true; } return false; } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); viewPager = findViewById(R.id.pager); drawer = findViewById(R.id.drawer); actionBar = getSupportActionBar(); actionBar.setDisplayHomeAsUpEnabled(true); toggle = new ActionBarDrawerToggle(this, drawer, R.string.open, R.string.close); //同步 toggle.syncState(); drawer.addDrawerListener(toggle); BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation); navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener); //給viewpager設定介面卡 viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) { @Override public Fragment getItem(int position) { switch (position){ case 0: return new SFragment(); default: return new WFragment(); } } @Override public int getCount() { return 2; } }); } @Override public boolean onOptionsItemSelected(MenuItem item) { //先交給toggle處理 if (toggle.onOptionsItemSelected(item)){ return true; } return super.onOptionsItemSelected(item); } }
**
側滑的內容LeftFragment頁面
**
package com.example.lx_module.fragment; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import com.example.lx_module.R; import com.example.lx_module.adapter.LeftAdapter; import java.util.ArrayList; import java.util.List; public class LeftFragment extends Fragment { private ListView listView; private List<String> list; private LeftAdapter adapter; @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.left, container, false); return view; } @Override public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); //獲取資源ID listView = view.findViewById(R.id.lists); list = new ArrayList<>(); list.add("我的收藏"); list.add("我的關注"); list.add("我的帖子"); list.add("我的通知"); list.add("我的積分"); list.add("設定"); //設定介面卡 adapter = new LeftAdapter(list,getActivity()); listView.setAdapter(adapter); } }
**
LeftAdapter頁面
**
package com.example.lx_module.adapter; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import com.example.lx_module.R; import java.util.List; public class LeftAdapter extends BaseAdapter { private List<String> list; private Context context; public LeftAdapter(List<String> list, Context context) { this.list = list; this.context = context; } public boolean hasImg(){ return true; } @Override public int getCount() { return hasImg()?list.size()+1:list.size(); } @Override public String getItem(int position) { return hasImg()?list.get(position-1):list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView==null){ convertView = LayoutInflater.from(context).inflate(hasImg()&&position==0? R.layout.left_image:R.layout.left_text, parent, false); holder= new ViewHolder(); holder.imageView = convertView.findViewById(R.id.imageview); holder.textView = convertView.findViewById(R.id.textview); convertView.setTag(holder); }else { holder = (ViewHolder) convertView.getTag(); } if (holder.textView!=null){ holder.textView.setText(getItem(position)); } if (holder.imageView!=null){ holder.imageView.setImageResource(R.mipmap.ic_launcher); } return convertView; } class ViewHolder{ private TextView textView; private ImageView imageView; } }
**
首頁SFragment頁面
**
package com.example.lx_module.fragment;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.lx_module.R;
import com.example.lx_module.adapter.ListAdapter;
import com.example.lx_module.bean.ListBean;
import com.example.lx_module.util.NetUtil;
import me.maxwin.view.XListView;
public class SFragment extends Fragment {
private XListView xListView;
private ListAdapter adapter;
private int mpage = 1;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.sfragment, container, false);
return view;
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
//獲取資源ID
xListView = view.findViewById(R.id.xlists);
//設定介面卡
adapter = new ListAdapter(getActivity());
xListView.setAdapter(adapter);
//設定允許上拉下拉
xListView.setPullRefreshEnable(true);
xListView.setPullLoadEnable(true);
//設定分頁監聽
xListView.setXListViewListener(new XListView.IXListViewListener() {
@Override
public void onRefresh() {
mpage=1;
initData();
}
@Override
public void onLoadMore() {
mpage++;
initData();
}
});
initData();
}
private String urlstr = "http://www.xieast.com/api/news/news.php?page=";
private void initData(){
NetUtil.getInstance().RequestData(urlstr + mpage, ListBean.class, new NetUtil.CallBack<ListBean>() {
@Override
public void OnSuccess(ListBean listBean) {
if (mpage==1){
adapter.setList(listBean.getData());
}else {
adapter.addList(listBean.getData());
}
//停止載入
xListView.stopLoadMore();
xListView.stopRefresh();
}
});
}
}
**
Bean類 ListBean頁面
**
package com.example.lx_module.bean;
import java.util.List;
public class ListBean {
private List<DataBean> data;
public List<DataBean> getData() {
return data;
}
public void setData(List<DataBean> data) {
this.data = data;
}
public static class DataBean{
private String title;
private String thumbnail_pic_s;
private String thumbnail_pic_s02;
private String thumbnail_pic_s03;
private String images;
public boolean getImages() {
return getThumbnail_pic_s()!=null&&getThumbnail_pic_s02()!=null&&getThumbnail_pic_s03()!=null;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
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;
}
}
}
ListAdapter頁面
package com.example.lx_module.adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.lx_module.R;
import com.example.lx_module.bean.ListBean;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
import java.util.List;
public class ListAdapter extends BaseAdapter {
private List<ListBean.DataBean> list;
private Context context;
public ListAdapter(Context context) {
this.context = context;
list = new ArrayList<>();
}
private int ITEM_ONE = 0;
private int ITEM_TWO = 1;
private int ITEM_COUNT = 2;
@Override
public int getItemViewType(int position) {
return getItem(position).getImages()?ITEM_ONE:ITEM_TWO;
}
@Override
public int getViewTypeCount() {
return ITEM_COUNT;
}
public void setList(List<ListBean.DataBean> slist) {
list.clear();
if (slist!=null){
list.addAll(slist);
}
notifyDataSetChanged();
}
public void addList(List<ListBean.DataBean> slist){
if (slist!=null){
list.addAll(slist);
}
notifyDataSetChanged();
}
@Override
public int getCount() {
return list.size();
}
@Override
public ListBean.DataBean getItem(int position) {
return list.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView==null){
convertView = LayoutInflater.from(context).inflate(getItemViewType(position)==ITEM_ONE? R.layout.item_images:R.layout.item_image, parent, false);
holder = new ViewHolder();
holder.imageView1 = convertView.findViewById(R.id.img1);
holder.imageView2 = convertView.findViewById(R.id.img2);
holder.imageView3 = convertView.findViewById(R.id.img3);
holder.textView = convertView.findViewById(R.id.txt);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
holder.textView.setText(getItem(position).getTitle());
ImageLoader.getInstance().displayImage(getItem(position).getThumbnail_pic_s(), holder.imageView1);
if (holder.imageView2!=null&&holder.imageView3!=null){
ImageLoader.getInstance().displayImage(getItem(position).getThumbnail_pic_s02(), holder.imageView2);
ImageLoader.getInstance().displayImage(getItem(position).getThumbnail_pic_s03(), holder.imageView3);
}
return convertView;
}
class ViewHolder{
private TextView textView;
private ImageView imageView1,imageView2,imageView3;
}
}
NetUtil頁面
package com.example.lx_module.util;
import android.os.AsyncTask;
import com.google.gson.Gson;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
public class NetUtil {
private static NetUtil instance;
public NetUtil(){
}
public static NetUtil getInstance(){
if (instance == null){
instance = new NetUtil();
}
return instance;
}
//建立介面
public static interface CallBack<T>{
void OnSuccess(T t);
}
//非同步請求
public static void RequestData(final String str, final Class clazz, final CallBack callBack){
new AsyncTask<String, Void, Object>() {
@Override
protected Object doInBackground(String... strings) {
return RequestData(str, clazz);
}
@Override
protected void onPostExecute(Object o) {
callBack.OnSuccess(o);
}
}.execute(str);
}
//網路解析
public static <T> T RequestData(String str, Class clazz){
T t = (T) new Gson().fromJson(RequestData(str), clazz);
return t;
}
//網路請求
public static String RequestData(String str){
String result = "";
try {
URL url = new URL(str);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setConnectTimeout(5000);
urlConnection.setReadTimeout(5000);
int responseCode = urlConnection.getResponseCode();
if (responseCode==200){
result = stream2String(urlConnection.getInputStream());
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
//字元流轉為字串
public static String stream2String(InputStream inputStream) throws IOException {
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
for (String tmp = bufferedReader.readLine(); tmp != null; tmp = bufferedReader.readLine()){
stringBuilder.append(tmp);
}
return stringBuilder.toString();
}
}
App頁面
package com.example.lx_module.util;
import android.app.Application;
import android.graphics.Bitmap;
import com.example.lx_module.R;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this)
.memoryCacheSize(10)
.diskCacheSize(10*1024*1024)
.defaultDisplayImageOptions(new DisplayImageOptions.Builder()
.bitmapConfig(Bitmap.Config.RGB_565)
.showImageOnFail(R.mipmap.ic_launcher)
.showImageForEmptyUri(R.mipmap.ic_launcher)
.showImageOnLoading(R.mipmap.ic_launcher)
.cacheOnDisk(true)
.cacheInMemory(true)
.build()
).build();
ImageLoader.getInstance().init(configuration);
}
}
activity_main佈局
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activity.Main2Activity">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/container"
>
<android.support.v4.view.ViewPager
android:layout_width="0dp"
android:layout_height="0dp"
android:id="@+id/pager"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toTopOf="@id/navigation"
app:layout_constraintTop_toTopOf="parent"
/>
<android.support.design.widget.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/navigation" />
</android.support.constraint.ConstraintLayout>
<fragment
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="start"
class="com.example.lx_module.fragment.LeftFragment"
/>
</android.support.v4.widget.DrawerLayout>
LeftFragment的佈局檔案
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#ccc">
<ListView
android:id="@+id/lists"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
></ListView>
</android.support.constraint.ConstraintLayout>