Fragment 側拉 多條目載入
MainActivity
package com.example.week02lxz;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
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.ArrayAdapter;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private DrawerLayout drawer; private FrameLayout fram_layout; private RadioGroup radio_group; private FragmentManager manager; private FragmentTransaction transaction; private ListView list_view; ArrayList<String> alist = new ArrayList<String>(); private RadioButton btn_1; private RadioButton btn_2; private RadioButton btn_3; private ImageView img1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); drawer = findViewById(R.id.drawer); fram_layout = findViewById(R.id.fram_layout); radio_group = findViewById(R.id.radio_group); list_view = findViewById(R.id.list_view); btn_1 = findViewById(R.id.btn_1); btn_2 = findViewById(R.id.btn_2); btn_3 = findViewById(R.id.btn_3); img1 = findViewById(R.id.img1); DisplayImageOptions options=ImageloaderUtils.getdisplay(); ImageLoader instance = ImageLoader.getInstance(); instance.displayImage("drawable://"+R.drawable.o,img1,options); initData(); manager = getSupportFragmentManager(); transaction = manager.beginTransaction(); transaction.replace(R.id.fram_layout, new Fragment01()).commit(); radio_group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { FragmentTransaction transaction1 = manager.beginTransaction(); switch (checkedId) { case R.id.btn_1: transaction1.replace(R.id.fram_layout, new Fragment01()); break; case R.id.btn_2: transaction1.replace(R.id.fram_layout, new Fragment02()); break; case R.id.btn_3: transaction1.replace(R.id.fram_layout, new Fragment03()); break; } transaction1.commit(); } }); list_view.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { FragmentTransaction transaction1 = manager.beginTransaction(); switch (position) { case 0: transaction1.replace(R.id.fram_layout, new Fragment01()); drawer.closeDrawers(); btn_1.setChecked(true); break; case 1: transaction1.replace(R.id.fram_layout, new Fragment02()); drawer.closeDrawers(); btn_2.setChecked(true); break; case 2: transaction1.replace(R.id.fram_layout, new Fragment03()); drawer.closeDrawers(); btn_3.setChecked(true); break; } transaction1.commit(); } }); } private void initData() { for (int i = 1; i < 10; i++) { alist.add("fragment0" + i); } ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, alist); list_view.setAdapter(arrayAdapter); }
}
Fragment01
package com.example.week02lxz;
import android.os.AsyncTask;
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.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.bwie.xlistviewlibrary.utils.NetWordUtils;
import com.bwie.xlistviewlibrary.view.XListView;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
import java.util.List;
public class Fragment01 extends Fragment {
String urlString = “http://api.expoon.com/AppNews/getNewsList/type/1/p/”;
ArrayList<Goods.DataBean> alist=new ArrayList<Goods.DataBean>();
private XListView xls;
private MyBadapter badapter;
private ImageLoader instance;
int page;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment01, container, false);
xls = view.findViewById(R.id.xls);
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
badapter = new MyBadapter();
instance = ImageLoader.getInstance();
xls.setAdapter(badapter);
erinitData(page);
xls.setPullLoadEnable(true);
xls.setXListViewListener(new XListView.IXListViewListener() {
@Override
public void onRefresh() {
alist.clear();
erinitData(0);
}
@Override
public void onLoadMore() {
page++;
erinitData(page);
}
});
}
private void erinitData(int page) {
String murl=urlString+page;
new MAsyncTask().execute(murl);
}
private class MyBadapter extends BaseAdapter {
ImageView imageView;
TextView textView;
View view1;
@Override
public int getItemViewType(int position) {
return position%2;
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public int getCount() {
return alist.size();
}
@Override
public Object getItem(int position) {
return alist.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
int itemViewType = getItemViewType(position);
switch (itemViewType){
case 0:
view1= View.inflate(getActivity(), R.layout.item2, null);
imageView=view1.findViewById(R.id.img2);
textView=view1.findViewById(R.id.text2);
textView.setText(alist.get(position).getNews_title());
DisplayImageOptions options=ImageloaderUtils.getdisplay();
instance.displayImage(alist.get(position).getPic_url(),imageView,options);
break;
case 1:
view1= View.inflate(getActivity(), R.layout.item2, null);
imageView=view1.findViewById(R.id.img2);
textView=view1.findViewById(R.id.text2);
textView.setText(alist.get(position).getNews_title());
imageView.setVisibility(View.GONE);
break;
}
return view1;
}
}
private class MAsyncTask extends AsyncTask<String,Void,String> {
@Override
protected String doInBackground(String... strings) {
return NetWordUtils.getNetjson(strings[0]);
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
Gson gson = new Gson();
Goods goods = gson.fromJson(s, Goods.class);
List<Goods.DataBean> data = goods.getData();
alist.addAll(data);
badapter.notifyDataSetChanged();
UIcomplete();
}
}
public void UIcomplete(){
xls.setRefreshTime("剛剛");
xls.stopLoadMore();
xls.stopRefresh();
}
}
MApp
public class MApp extends Application {
@Override
public void onCreate() {
super.onCreate();
ImageLoaderConfiguration build = new ImageLoaderConfiguration.Builder(this).build();
ImageLoader.getInstance().init(build);
}
}
activity_main.xml
<?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”
android:orientation=“vertical”
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:id="@+id/fram_layout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="9"></FrameLayout>
<RadioGroup
android:id="@+id/radio_group"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<RadioButton
android:id="@+id/btn_1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@drawable/anya"
android:button="@null"
android:checked="true"
android:gravity="center"
android:text="微信" />
<RadioButton
android:id="@+id/btn_2"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@drawable/anya"
android:button="@null"
android:gravity="center"
android:text="通訊錄" />
<RadioButton
android:id="@+id/btn_3"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@drawable/anya"
android:button="@null"
android:gravity="center"
android:text="發現" />
</RadioGroup>
</LinearLayout>
<LinearLayout
android:id="@+id/linear"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorAccent"
android:layout_gravity="start">
<ImageView
android:id="@+id/img1"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="@drawable/o"/>
<ListView
android:id="@+id/list_view"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
fragment01.xml
<?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”>
<com.bwie.xlistviewlibrary.view.XListView
android:id="@+id/xls"
android:layout_width="match_parent"
android:layout_height="match_parent">
</com.bwie.xlistviewlibrary.view.XListView>
</android.support.constraint.ConstraintLayout>