XListView刷新加载，网络加载Xlv数据，网络加载ViewPager自动轮播，侧拉，TabLayout
MainActivity.java
public class MainActivity extends AppCompatActivity {
private ViewPager pager;
private DrawerLayout drawerLayout;
private ArrayList list;
private TabLayout tabLayout;
private ActionBarDrawerToggle toggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pager = findViewById(R.id.pagers);
drawerLayout = findViewById(R.id.drawer);
tabLayout = findViewById(R.id.tab);
list = new ArrayList<>();
list.add(new Afragment());
list.add(new Bfragment());
list.add(new Cfragment());
list.add(new Dfragment());
pager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
@Override
public Fragment getItem(int position) {
return list.get(position);
}
@Override
public int getCount() {
return list.size();
}
});
Tab();
initActionBar();
}
private void initActionBar() {
//获取一个ActionBar对象
android.support.v7.app.ActionBar actionBar = getSupportActionBar();
//给左上角一张图片,4.0意思默认图片,给true就可以直接使用
actionBar.setDisplayHomeAsUpEnabled(true);
//有一类提供了绑定DrawerLayout功能
toggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.open, R.string.close);
//DrawerLayout和ActionBar关联
toggle.syncState();
drawerLayout.addDrawerListener(toggle);
}
//A.设置左上角按钮具备点击事件
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (toggle.onOptionsItemSelected(item)){
return true;
}
return super.onOptionsItemSelected(item);
}
private void Tab() { //设置TabLayout
//tabLayout指示器有几个,创建几个
tabLayout.addTab(tabLayout.newTab());
tabLayout.addTab(tabLayout.newTab());
tabLayout.addTab(tabLayout.newTab());
tabLayout.addTab(tabLayout.newTab());
tabLayout.setupWithViewPager(pager);
tabLayout.getTabAt(0).setText("蒸");
tabLayout.getTabAt(1).setText("蒸");
tabLayout.getTabAt(2).setText("日");
tabLayout.getTabAt(3).setText("上");
}
}
activity_main.xml
Afargment.java
public class Afragment extends Fragment{
private ViewPager pager;
private XListView xListView;
public int page=1;
private ItemAdapter itemAdapter;
BannerAdapter bannerAdapter;
public String path_xlistview="http://www.xieast.com/api/news/news.php?page="+page+"";
public String path_viewpager="http://www.xieast.com/api/banner.php";
Handler handler=new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
int currentItem = pager.getCurrentItem();
if (currentItem==bannerAdapter.getList().size()-1){
currentItem=0;
}else {
currentItem++;
}
pager.setCurrentItem(currentItem);
handler.sendEmptyMessageDelayed(0,2000);
}
};
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = View.inflate(getActivity(), R.layout.afrag, null);
pager = view.findViewById(R.id.pager);
xListView = view.findViewById(R.id.xlv);
itemAdapter = new ItemAdapter(getLayoutInflater());
xListView.setAdapter(itemAdapter);
bannerAdapter = new BannerAdapter(getLayoutInflater());
pager.setAdapter(bannerAdapter);
xListView.setPullLoadEnable(true);
xListView.setPullRefreshEnable(true);
xListView.setXListViewListener(new XListView.IXListViewListener() {
@Override
public void onRefresh() {
page=1;
initData(path_xlistview);
}
@Override
public void onLoadMore() {
initData(path_xlistview);
}
});
initData(path_xlistview);
initViewData(path_viewpager);
handler.sendEmptyMessageDelayed(0,2000);
return view;
}
private void initViewData(String path_viewpager) {
new AsyncTask>() {
@Override
protected ArrayList doInBackground(String... strings) {
String requestData2 = HttpUrl.requestData(strings[0]);
BannerBean bannerBean = new Gson().fromJson(requestData2, BannerBean.class);
if(bannerBean!=null){
return (ArrayList) bannerBean.getData();
}
return null;
}
@Override
protected void onPostExecute(ArrayList dataBeans) {
super.onPostExecute(dataBeans);
bannerAdapter.setDatas(dataBeans);
}
}.execute(path_viewpager);
}
private void initData(String path_xlistview) {
new AsyncTask>() {
@Override
protected ArrayList doInBackground(String... strings) {
String requestData = HttpUrl.requestData(strings[0]);
ItemBean ss = new Gson().fromJson(requestData, ItemBean.class);
if(ss!=null){
return (ArrayList) ss.getData();
}
return null;
}
@Override
protected void onPostExecute(ArrayList dataBeans) {
super.onPostExecute(dataBeans);
updateData(dataBeans);
closeXlv();
}
}.execute(path_xlistview);
}
private void updateData(ArrayList dataBeans){
if (page==1){
itemAdapter.setDatas(dataBeans);
}else {
itemAdapter.addDatas(dataBeans);
}
}
private void closeXlv(){
page++;
xListView.stopRefresh();
xListView.stopLoadMore();
}
@Override
public void onDestroy() {
super.onDestroy();
handler.removeMessages(0);
}
}
afrag.xml
HttpUrl.java
public class HttpUrl {
public static String requestData(String string){
String getgson=null;
try {
URL url = new URL(string);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setConnectTimeout(50*1000);
urlConnection.setReadTimeout(50*1000);
int responseCode = urlConnection.getResponseCode();
if(responseCode==200){
String gsonString = stream2String(urlConnection.getInputStream());
getgson=gsonString;
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return getgson;
}
private static String stream2String(InputStream inputStream) {
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
try {
for (String tmp = bufferedReader.readLine(); tmp!=null; tmp=bufferedReader.readLine()) {
stringBuilder.append(tmp);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return stringBuilder.toString();
}
}
ItemAdapter.java
public class ItemAdapter extends BaseAdapter{
private LayoutInflater layoutInflater;
ArrayList li;
public ItemAdapter(LayoutInflater layoutInflater) {
this.layoutInflater = layoutInflater;
li = new ArrayList<>();
}
public void setDatas(ArrayList datas) {
li.clear();
li.addAll(datas);
notifyDataSetChanged();
}
public void addDatas(ArrayList dataBeans) {
li.addAll(dataBeans);
notifyDataSetChanged();
}
@Override
public int getCount() {
return li.size();
}
@Override
public Object getItem(int i) {
return li.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder viewHolder=null;
if (view==null){
view = layoutInflater.inflate(R.layout.item, viewGroup, false);
viewHolder = new ViewHolder(view);
}else {
viewHolder = (ViewHolder) view.getTag();
}
viewHolder.update((ItemBean.DataBean) getItem(i));
return view;
}
class ViewHolder{
private ImageView imageView;
private TextView text1;
private TextView text2;
public ViewHolder(View view) {
imageView = view.findViewById(R.id.image);
text1 = view.findViewById(R.id.t1);
text2 = view.findViewById(R.id.t2);
view.setTag(this);
}
public void update(ItemBean.DataBean item) {
text1.setText(item.getTitle());
text2.setText(item.getAuthor_name());
ImageLoader.getInstance().displayImage(item.getThumbnail_pic_s(),imageView);
}
}
}
BannerAdapter.java
public class BannerAdapter extends PagerAdapter{
private LayoutInflater layoutInflater;
ArrayList list;
public ArrayList getList() {
return list;
}
public BannerAdapter(LayoutInflater layoutInflater) {
this.layoutInflater = layoutInflater;
list = new ArrayList<>();
}
public void setDatas(ArrayList datas) {
list.addAll(datas);
notifyDataSetChanged();
}
@Override
public int getCount() {
return list.size();
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view==object;
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
ImageView imageView = new ImageView(layoutInflater.getContext());
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
ImageLoader.getInstance().displayImage(list.get(position).getImg(),imageView);
container.addView(imageView);
return imageView;
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
container.removeView((View) object);
}
}
App.java
public class App extends Application{
@Override
public void onCreate() {
super.onCreate();
// RoundedBitmapDisplayer bitmapDisplayer = new RoundedBitmapDisplayer(20);
BitmapDisplayer bitmapDisplayer = new CircleBitmapDisplayer();
DisplayImageOptions options = new DisplayImageOptions.Builder()
.displayer(bitmapDisplayer)
.showImageOnLoading(R.drawable.ic_launcher)
.showImageForEmptyUri(R.drawable.ic_launcher)
.cacheInMemory(true)
.build();
ImageLoaderConfiguration configuration = new ImageLoaderConfiguration
.Builder(this)
.defaultDisplayImageOptions(options)
.build();
ImageLoader.getInstance().init(configuration);
}
}