DrawerLayout与listView结合(drawerlayout条目点击显示)
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布局:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawer_gen"
>
<!-- 先写主背景区域-->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/rela_zhubeijing"
>
</RelativeLayout>
<!--再写侧滑部分-->
<LinearLayout
android:background="#ffffff"
android:orientation="vertical"
android:layout_width="200dp"
android:layout_height="match_parent"
android:id="@+id/linear_cemian"
android:layout_gravity="left"
>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/list_view"
></ListView>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
代码:
MainActivity:
package com.example.wanghuantao170920;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RelativeLayout;
import com.example.wanghuantao170920.adpater.MyAdapter;
import com.example.wanghuantao170920.fragment.Fragment_zhu;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RelativeLayout rela_zhubeijing;
private DrawerLayout drawer_gen;
private LinearLayout linear_cemian;
private ListView listView;
private Fragment_zhu fragment_zhu;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//拿到控件
rela_zhubeijing = (RelativeLayout) findViewById(R.id.rela_zhubeijing);
drawer_gen = (DrawerLayout) findViewById(R.id.drawer_gen);
linear_cemian = (LinearLayout) findViewById(R.id.linear_cemian);
listView = (ListView) findViewById(R.id.list_view);
Bundle bundle = new Bundle();
bundle.putInt("type",2);
fragment_zhu = new Fragment_zhu();
fragment_zhu.setArguments(bundle);
getSupportFragmentManager().beginTransaction().replace(R.id.rela_zhubeijing,fragment_zhu).commit();
//侧面的listview集合
List<String> list = new ArrayList<>();
list.add("新闻");
list.add("关注");
list.add("动态");
list.add("设置");
MyAdapter myAdapter = new MyAdapter(list, MainActivity.this);
listView.setAdapter(myAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
//点击条目传值.访问网络
Bundle bundle = new Bundle();
bundle.putInt("type",i);
fragment_zhu.setArguments(bundle);
//替换显示
getSupportFragmentManager().beginTransaction().replace(R.id.rela_zhubeijing, fragment_zhu).commit();
//侧滑页面消失
drawer_gen.closeDrawer(linear_cemian);
}
});
}
}
ListViewAdapter:
package com.example.wanghuantao170920.adpater;
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.bean.DBean;
import com.example.wanghuantao170920.util.ImageLoaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class ListAdapter extends BaseAdapter{
List<DBean.DataBean> list;
Context context;
public ListAdapter(List<DBean.DataBean> list, Context context) {
this.list = list;
this.context = context;
ImageLoaderUtil.initConfigration(context);
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder;
if (view==null){
view = View.inflate(context, R.layout.list_item,null);
holder = new ViewHolder();
holder.imageView = view.findViewById(R.id.imageView);
holder.textView = view.findViewById(R.id.textView);
view.setTag(holder);
}else{
holder = (ViewHolder) view.getTag();
}
ImageLoader.getInstance().displayImage(list.get(i).getPic_url(),holder.imageView,ImageLoaderUtil.getDefautOption());
holder.textView.setText(list.get(i).getNews_title());
return view;
}
class ViewHolder{
ImageView imageView;
TextView textView;
}
}
ListAdapter:
package com.example.wanghuantao170920.adpater;
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.example.wanghuantao170920.MainActivity;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.util.ImageLoaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
import java.util.PriorityQueue;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class MyAdapter extends BaseAdapter{
List<String> list;
Context context;
public MyAdapter(List<String> list, Context context) {
this.list = list;
this.context = context;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder;
if (view==null){
view = View.inflate(context, R.layout.list_item,null);
holder = new ViewHolder();
holder.imageView = view.findViewById(R.id.imageView);
holder.textView = view.findViewById(R.id.textView);
view.setTag(holder);
}else{
holder = (ViewHolder) view.getTag();
}
holder.imageView.setImageResource(R.mipmap.ic_launcher);
holder.textView.setText(list.get(i));
return view;
}
class ViewHolder{
ImageView imageView;
TextView textView;
}
}
主Fragment:
package com.example.wanghuantao170920.fragment;
import android.os.AsyncTask;
import android.os.Bundle;
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.ImageView;
import android.widget.ListView;
import android.widget.Toast;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.adpater.ListAdapter;
import com.example.wanghuantao170920.bean.DBean;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.ILoadingLayout;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class Fragment_zhu extends Fragment {
List<DBean.DataBean> list= new ArrayList<>();
private PullToRefreshListView refreshListView;
int type;
int num =1;
private ILoadingLayout endlabels;
private ILoadingLayout startlabels;
private ListAdapter listAdapter;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_zhubeijing, container, false);
refreshListView = view.findViewById(R.id.refresh_list_view);
getDataFromNet();
setAdapter();
//设置PullToRefreshListView刷新模式,上拉下拉都可以
refreshListView.setMode(PullToRefreshBase.Mode.BOTH);
//设置刷新显示的状态,可以下拉,不能上拉
startlabels = refreshListView.getLoadingLayoutProxy(true, false);
startlabels.setRefreshingLabel("正在刷新");
startlabels.setPullLabel("下拉刷新");
startlabels.setReleaseLabel("松开刷新");
endlabels = refreshListView.getLoadingLayoutProxy(false, true);
endlabels.setRefreshingLabel("正在加载");
endlabels.setPullLabel("上拉加载");
endlabels.setReleaseLabel("松开加载");
//设置监听事件
refreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
@Override
//下拉刷新调用
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
num = 1;
//获取数据
getDataFromNetxiala();
}
@Override
//上拉加载调用
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
num++;
getDataFromNet();
}
});
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Bundle bundle = getArguments();
//如果没拿到就默认为1
type = bundle.getInt("type", 1);
getDataFromNet();
}
private void getDataFromNetxiala() {
AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
String path = "http://api.expoon.com/AppNews/getNewsList/type/3/p/" + num;
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
int responseCode = connection.getResponseCode();
if (responseCode == 200) {
InputStream inputStream = connection.getInputStream();
String json = streamToString(inputStream, "utf-8");
Thread.sleep(2000);
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String json) {
if (json!=null && !json.isEmpty()){
Gson gson = new Gson();
DBean dBean = gson.fromJson(json, DBean.class);
list.addAll(0,dBean.getData());
long currentTimeMillis = System.currentTimeMillis();
Date date2= new Date(currentTimeMillis);
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
String format = dateFormat.format(date2);
//设置刷新的时间
startlabels.setLastUpdatedLabel(format);
//停止刷新
refreshListView.onRefreshComplete();
setAdapter();
}else{
Toast.makeText(getActivity(),"没拿到数据",Toast.LENGTH_SHORT).show();
}
}
};
asyncTask.execute();
}
private void getDataFromNet() {
AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
String path = "http://api.expoon.com/AppNews/getNewsList/type/3/p/" + num;
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
int responseCode = connection.getResponseCode();
if (responseCode == 200) {
InputStream inputStream = connection.getInputStream();
String json = streamToString(inputStream, "utf-8");
Thread.sleep(2000);
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String json) {
if (json!=null && !json.isEmpty()){
Gson gson = new Gson();
DBean dBean = gson.fromJson(json, DBean.class);
list.addAll(dBean.getData());
long currentTimeMillis = System.currentTimeMillis();
Date date2= new Date(currentTimeMillis);
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
String format = dateFormat.format(date2);
//设置刷新的时间
endlabels.setLastUpdatedLabel(format);
//停止刷新
refreshListView.onRefreshComplete();
setAdapter();
}else{
Toast.makeText(getActivity(),"没拿到数据",Toast.LENGTH_SHORT).show();
}
}
};
asyncTask.execute();
}
private void setAdapter() {
if (listAdapter==null) {
listAdapter = new ListAdapter(list, getActivity());
refreshListView.setAdapter(listAdapter);
}else{
listAdapter.notifyDataSetChanged();
}
}
private String streamToString(InputStream inputStream, String charset) {
try {
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, charset);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder builder = new StringBuilder();
String s = null;
while ((s = bufferedReader.readLine()) != null) {
builder.append(s);
}
bufferedReader.close();
return builder.toString();
} catch (Exception e) {
e.printStackTrace();
}
return charset;
}
}
工具类:
package com.example.wanghuantao170920.util;
import android.content.Context;
import android.graphics.Bitmap;
import com.example.wanghuantao170920.R;
import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiskCache;
import com.nostra13.universalimageloader.cache.disc.naming.HashCodeFileNameGenerator;
import com.nostra13.universalimageloader.cache.memory.impl.LruMemoryCache;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;
import com.nostra13.universalimageloader.core.assist.QueueProcessingType;
import com.nostra13.universalimageloader.core.decode.BaseImageDecoder;
import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
import com.nostra13.universalimageloader.utils.StorageUtils;
import java.io.File;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class ImageLoaderUtil {
public static void initConfigration(Context context) {
File cacheDir = StorageUtils.getCacheDirectory(context); //缓存文件夹路径
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
.threadPoolSize(3)//一般就是3,,,1-5
.threadPriority(Thread.NORM_PRIORITY - 2) // default 设置当前线程的优先级,,,1-10
.tasksProcessingOrder(QueueProcessingType.FIFO) // default
.denyCacheImageMultipleSizesInMemory()//拒绝缓存加载内容相同但大小不同的图片
.memoryCache(new LruMemoryCache(2 * 1024 * 1024)) //可以通过自己的内存缓存实现
.memoryCacheSize(2 * 1024 * 1024) // 内存缓存的最大值
.memoryCacheSizePercentage(13) // default
.diskCache(new UnlimitedDiskCache(cacheDir)) // default 可以自定义缓存路径
.diskCacheSize(50 * 1024 * 1024) // 50 Mb sd卡(本地)缓存的最大值
.diskCacheFileCount(100) // 可以缓存的文件数量
// default为使用HASHCODE对UIL进行加密命名, 还可以用MD5(new Md5FileNameGenerator())加密
.diskCacheFileNameGenerator(new HashCodeFileNameGenerator())
.imageDownloader(new BaseImageDownloader(context)) // default
.imageDecoder(new BaseImageDecoder(true)) // default
.defaultDisplayImageOptions(DisplayImageOptions.createSimple()) // default
.writeDebugLogs() // 打印debug log
.build(); //开始构建
//初始化
ImageLoader.getInstance().init(config);
}
public static DisplayImageOptions getDefautOption() {
DisplayImageOptions imageOptions = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.mipmap.ic_launcher)
.showImageOnFail(R.mipmap.ic_launcher)
.showImageOnLoading(R.mipmap.ic_launcher)
.cacheInMemory(true)
.cacheOnDisk(true)
.imageScaleTyp
e(ImageScaleType.EXACTLY_STRETCHED)
.resetViewBeforeLoading(true)//在加载之前复位一下显示
.bitmapConfig(Bitmap.Config.RGB_565)//图片的质量
.considerExifParams(true)///是否考虑JPEG图像EXIF参数(旋转,翻转)
.build();
return imageOptions;
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawer_gen"
>
<!-- 先写主背景区域-->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/rela_zhubeijing"
>
</RelativeLayout>
<!--再写侧滑部分-->
<LinearLayout
android:background="#ffffff"
android:orientation="vertical"
android:layout_width="200dp"
android:layout_height="match_parent"
android:id="@+id/linear_cemian"
android:layout_gravity="left"
>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/list_view"
></ListView>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
代码:
MainActivity:
package com.example.wanghuantao170920;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RelativeLayout;
import com.example.wanghuantao170920.adpater.MyAdapter;
import com.example.wanghuantao170920.fragment.Fragment_zhu;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RelativeLayout rela_zhubeijing;
private DrawerLayout drawer_gen;
private LinearLayout linear_cemian;
private ListView listView;
private Fragment_zhu fragment_zhu;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//拿到控件
rela_zhubeijing = (RelativeLayout) findViewById(R.id.rela_zhubeijing);
drawer_gen = (DrawerLayout) findViewById(R.id.drawer_gen);
linear_cemian = (LinearLayout) findViewById(R.id.linear_cemian);
listView = (ListView) findViewById(R.id.list_view);
Bundle bundle = new Bundle();
bundle.putInt("type",2);
fragment_zhu = new Fragment_zhu();
fragment_zhu.setArguments(bundle);
getSupportFragmentManager().beginTransaction().replace(R.id.rela_zhubeijing,fragment_zhu).commit();
//侧面的listview集合
List<String> list = new ArrayList<>();
list.add("新闻");
list.add("关注");
list.add("动态");
list.add("设置");
MyAdapter myAdapter = new MyAdapter(list, MainActivity.this);
listView.setAdapter(myAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
//点击条目传值.访问网络
Bundle bundle = new Bundle();
bundle.putInt("type",i);
fragment_zhu.setArguments(bundle);
//替换显示
getSupportFragmentManager().beginTransaction().replace(R.id.rela_zhubeijing, fragment_zhu).commit();
//侧滑页面消失
drawer_gen.closeDrawer(linear_cemian);
}
});
}
}
ListViewAdapter:
package com.example.wanghuantao170920.adpater;
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.bean.DBean;
import com.example.wanghuantao170920.util.ImageLoaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class ListAdapter extends BaseAdapter{
List<DBean.DataBean> list;
Context context;
public ListAdapter(List<DBean.DataBean> list, Context context) {
this.list = list;
this.context = context;
ImageLoaderUtil.initConfigration(context);
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder;
if (view==null){
view = View.inflate(context, R.layout.list_item,null);
holder = new ViewHolder();
holder.imageView = view.findViewById(R.id.imageView);
holder.textView = view.findViewById(R.id.textView);
view.setTag(holder);
}else{
holder = (ViewHolder) view.getTag();
}
ImageLoader.getInstance().displayImage(list.get(i).getPic_url(),holder.imageView,ImageLoaderUtil.getDefautOption());
holder.textView.setText(list.get(i).getNews_title());
return view;
}
class ViewHolder{
ImageView imageView;
TextView textView;
}
}
ListAdapter:
package com.example.wanghuantao170920.adpater;
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.example.wanghuantao170920.MainActivity;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.util.ImageLoaderUtil;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.List;
import java.util.PriorityQueue;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class MyAdapter extends BaseAdapter{
List<String> list;
Context context;
public MyAdapter(List<String> list, Context context) {
this.list = list;
this.context = context;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder;
if (view==null){
view = View.inflate(context, R.layout.list_item,null);
holder = new ViewHolder();
holder.imageView = view.findViewById(R.id.imageView);
holder.textView = view.findViewById(R.id.textView);
view.setTag(holder);
}else{
holder = (ViewHolder) view.getTag();
}
holder.imageView.setImageResource(R.mipmap.ic_launcher);
holder.textView.setText(list.get(i));
return view;
}
class ViewHolder{
ImageView imageView;
TextView textView;
}
}
主Fragment:
package com.example.wanghuantao170920.fragment;
import android.os.AsyncTask;
import android.os.Bundle;
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.ImageView;
import android.widget.ListView;
import android.widget.Toast;
import com.example.wanghuantao170920.R;
import com.example.wanghuantao170920.adpater.ListAdapter;
import com.example.wanghuantao170920.bean.DBean;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.ILoadingLayout;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class Fragment_zhu extends Fragment {
List<DBean.DataBean> list= new ArrayList<>();
private PullToRefreshListView refreshListView;
int type;
int num =1;
private ILoadingLayout endlabels;
private ILoadingLayout startlabels;
private ListAdapter listAdapter;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_zhubeijing, container, false);
refreshListView = view.findViewById(R.id.refresh_list_view);
getDataFromNet();
setAdapter();
//设置PullToRefreshListView刷新模式,上拉下拉都可以
refreshListView.setMode(PullToRefreshBase.Mode.BOTH);
//设置刷新显示的状态,可以下拉,不能上拉
startlabels = refreshListView.getLoadingLayoutProxy(true, false);
startlabels.setRefreshingLabel("正在刷新");
startlabels.setPullLabel("下拉刷新");
startlabels.setReleaseLabel("松开刷新");
endlabels = refreshListView.getLoadingLayoutProxy(false, true);
endlabels.setRefreshingLabel("正在加载");
endlabels.setPullLabel("上拉加载");
endlabels.setReleaseLabel("松开加载");
//设置监听事件
refreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
@Override
//下拉刷新调用
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
num = 1;
//获取数据
getDataFromNetxiala();
}
@Override
//上拉加载调用
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
num++;
getDataFromNet();
}
});
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Bundle bundle = getArguments();
//如果没拿到就默认为1
type = bundle.getInt("type", 1);
getDataFromNet();
}
private void getDataFromNetxiala() {
AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
String path = "http://api.expoon.com/AppNews/getNewsList/type/3/p/" + num;
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
int responseCode = connection.getResponseCode();
if (responseCode == 200) {
InputStream inputStream = connection.getInputStream();
String json = streamToString(inputStream, "utf-8");
Thread.sleep(2000);
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String json) {
if (json!=null && !json.isEmpty()){
Gson gson = new Gson();
DBean dBean = gson.fromJson(json, DBean.class);
list.addAll(0,dBean.getData());
long currentTimeMillis = System.currentTimeMillis();
Date date2= new Date(currentTimeMillis);
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
String format = dateFormat.format(date2);
//设置刷新的时间
startlabels.setLastUpdatedLabel(format);
//停止刷新
refreshListView.onRefreshComplete();
setAdapter();
}else{
Toast.makeText(getActivity(),"没拿到数据",Toast.LENGTH_SHORT).show();
}
}
};
asyncTask.execute();
}
private void getDataFromNet() {
AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {
@Override
protected String doInBackground(Void... voids) {
String path = "http://api.expoon.com/AppNews/getNewsList/type/3/p/" + num;
try {
URL url = new URL(path);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
int responseCode = connection.getResponseCode();
if (responseCode == 200) {
InputStream inputStream = connection.getInputStream();
String json = streamToString(inputStream, "utf-8");
Thread.sleep(2000);
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String json) {
if (json!=null && !json.isEmpty()){
Gson gson = new Gson();
DBean dBean = gson.fromJson(json, DBean.class);
list.addAll(dBean.getData());
long currentTimeMillis = System.currentTimeMillis();
Date date2= new Date(currentTimeMillis);
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
String format = dateFormat.format(date2);
//设置刷新的时间
endlabels.setLastUpdatedLabel(format);
//停止刷新
refreshListView.onRefreshComplete();
setAdapter();
}else{
Toast.makeText(getActivity(),"没拿到数据",Toast.LENGTH_SHORT).show();
}
}
};
asyncTask.execute();
}
private void setAdapter() {
if (listAdapter==null) {
listAdapter = new ListAdapter(list, getActivity());
refreshListView.setAdapter(listAdapter);
}else{
listAdapter.notifyDataSetChanged();
}
}
private String streamToString(InputStream inputStream, String charset) {
try {
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, charset);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder builder = new StringBuilder();
String s = null;
while ((s = bufferedReader.readLine()) != null) {
builder.append(s);
}
bufferedReader.close();
return builder.toString();
} catch (Exception e) {
e.printStackTrace();
}
return charset;
}
}
工具类:
package com.example.wanghuantao170920.util;
import android.content.Context;
import android.graphics.Bitmap;
import com.example.wanghuantao170920.R;
import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiskCache;
import com.nostra13.universalimageloader.cache.disc.naming.HashCodeFileNameGenerator;
import com.nostra13.universalimageloader.cache.memory.impl.LruMemoryCache;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;
import com.nostra13.universalimageloader.core.assist.QueueProcessingType;
import com.nostra13.universalimageloader.core.decode.BaseImageDecoder;
import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
import com.nostra13.universalimageloader.utils.StorageUtils;
import java.io.File;
/**
* Created by Menglucywhh on 2017/9/19.
*/
public class ImageLoaderUtil {
public static void initConfigration(Context context) {
File cacheDir = StorageUtils.getCacheDirectory(context); //缓存文件夹路径
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
.threadPoolSize(3)//一般就是3,,,1-5
.threadPriority(Thread.NORM_PRIORITY - 2) // default 设置当前线程的优先级,,,1-10
.tasksProcessingOrder(QueueProcessingType.FIFO) // default
.denyCacheImageMultipleSizesInMemory()//拒绝缓存加载内容相同但大小不同的图片
.memoryCache(new LruMemoryCache(2 * 1024 * 1024)) //可以通过自己的内存缓存实现
.memoryCacheSize(2 * 1024 * 1024) // 内存缓存的最大值
.memoryCacheSizePercentage(13) // default
.diskCache(new UnlimitedDiskCache(cacheDir)) // default 可以自定义缓存路径
.diskCacheSize(50 * 1024 * 1024) // 50 Mb sd卡(本地)缓存的最大值
.diskCacheFileCount(100) // 可以缓存的文件数量
// default为使用HASHCODE对UIL进行加密命名, 还可以用MD5(new Md5FileNameGenerator())加密
.diskCacheFileNameGenerator(new HashCodeFileNameGenerator())
.imageDownloader(new BaseImageDownloader(context)) // default
.imageDecoder(new BaseImageDecoder(true)) // default
.defaultDisplayImageOptions(DisplayImageOptions.createSimple()) // default
.writeDebugLogs() // 打印debug log
.build(); //开始构建
//初始化
ImageLoader.getInstance().init(config);
}
public static DisplayImageOptions getDefautOption() {
DisplayImageOptions imageOptions = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.mipmap.ic_launcher)
.showImageOnFail(R.mipmap.ic_launcher)
.showImageOnLoading(R.mipmap.ic_launcher)
.cacheInMemory(true)
.cacheOnDisk(true)
.imageScaleTyp
e(ImageScaleType.EXACTLY_STRETCHED)
.resetViewBeforeLoading(true)//在加载之前复位一下显示
.bitmapConfig(Bitmap.Config.RGB_565)//图片的质量
.considerExifParams(true)///是否考虑JPEG图像EXIF参数(旋转,翻转)
.build();
return imageOptions;
}
}
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