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  • expandlistview

    package com.exaple.zhonghe2;

    import java.sql.SQLData;
    import java.util.ArrayList;
    import java.util.HashSet;
    import java.util.List;
    import java.util.Set;

    import com.exaple.Exapa.ExpandBaptwe;
    import com.exaple.Exapa.MyHelp;
    import com.exaple.netUtil.NetUti;
    import com.exaple.vo.Myinfo;
    import com.exaple.vo.ShowA;
    import com.exaple.vo.Super;
    import com.google.gson.Gson;

    import android.os.Bundle;
    import android.os.Handler;
    import android.app.Activity;
    import android.content.Intent;
    import android.database.sqlite.SQLiteDatabase;
    import android.view.Menu;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.EditText;
    import android.widget.ExpandableListView;
    import android.widget.ExpandableListView.OnChildClickListener;

    public class MainActivity extends Activity {
    private String title;

    public List<Myinfo> li;
    Handler ha = new Handler() {

    private Set<String> set_ctitle;
    private ArrayList<ShowA> al;

    public void handleMessage(android.os.Message msg) {
    String ma = (String) msg.obj;
    Gson gs = new Gson();
    Super fromJson = gs.fromJson(ma, Super.class);
    li = fromJson.getInfo();
    set_ctitle = new HashSet<String>();
    for (Myinfo m : li) {
    set_ctitle.add(m.getCtitle());

    }

    List<String> lis = new ArrayList<String>();
    lis.addAll(set_ctitle);
    //添加数据库
    for (int i = 0; i < lis.size(); i++) {
    String set = lis.get(i);
    sql.execSQL("insert into user values(null,?)",
    new String[] { set });
    }

    final List<ArrayList<ShowA>> child_list = new ArrayList<ArrayList<ShowA>>();

    for (int i = 0; i < lis.size(); i++) {
    al = new ArrayList<ShowA>();
    for (Myinfo n : li) {
    if (n.getCtitle().equals(lis.get(i))) {
    ShowA sn = new ShowA();
    sn.setCtime(n.getCtime());
    sn.setCtitle(n.getCtitle());
    sn.setDescript(n.getDescript());
    sn.setPicurl(n.getPicurl());
    sn.setTitle(n.getTitle());
    al.add(sn);

    }

    }
    child_list.add(al);

    }
    for (int i = 0; i < al.size(); i++) {
    String time = al.get(i).getCtime();
    String ctitle = al.get(i).getCtitle();
    String descrip = al.get(i).getDescript();
    String pic = al.get(i).getPicurl();
    String title = al.get(i).getTitle();

    sql.execSQL("insert into use values(null,?,?,?,?,?)",
    new String[] { time, ctitle, descrip, pic, title });
    }

    ExpandBaptwe ba = new ExpandBaptwe(lis, MainActivity.this,
    child_list, text);
    exp.setAdapter(ba);

    };
    };
    private EditText edtext;
    private Button button;
    private ExpandableListView exp;
    private String text;

    private SQLiteDatabase sql;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    edtext = (EditText) findViewById(R.id.edtext);
    button = (Button) findViewById(R.id.button);
    exp = (ExpandableListView) findViewById(R.id.exe);
    MyHelp my = new MyHelp(MainActivity.this, "users", null, 1);
    sql = my.getWritableDatabase();

    button.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {

    text = edtext.getText().toString();
    new Thread() {
    public void run() {
    String str = NetUti
    .GetJson("http://www.hengboit.com/json/json_search.php?wd="
    + text);
    ha.sendMessage(ha.obtainMessage(1, str));

    };
    }.start();

    }
    });
    exp.setOnChildClickListener(new OnChildClickListener() {

    @Override
    public boolean onChildClick(ExpandableListView parent, View v,
    int groupPosition, int childPosition, long id) {
    Intent ints = new Intent(MainActivity.this, NewActivity.class);
    ints.putExtra("name", li.get(childPosition).getCtime());

    startActivity(ints);
    return true;
    }
    });
    }
    }

    //适配器

    package com.exaple.Exapa;

    import java.util.ArrayList;
    import java.util.List;

    import com.exaple.Exapa.Apater.ViewHodler;
    import com.exaple.vo.Myinfo;
    import com.exaple.vo.ShowA;
    import com.exaple.zhonghe2.MainActivity;
    import com.exaple.zhonghe2.NewActivity;
    import com.exaple.zhonghe2.R;
    import com.lidroid.xutils.BitmapUtils;
    import com.lidroid.xutils.db.sqlite.CursorUtils.FindCacheSequence;

    import android.content.Context;
    import android.content.Intent;
    import android.database.Cursor;
    import android.database.sqlite.SQLiteDatabase;
    import android.graphics.Color;
    import android.text.Spannable;
    import android.text.SpannableString;
    import android.text.SpannableStringBuilder;
    import android.text.style.AbsoluteSizeSpan;
    import android.text.style.BackgroundColorSpan;
    import android.text.style.ForegroundColorSpan;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.AdapterView;
    import android.widget.AdapterView.OnItemClickListener;
    import android.widget.BaseExpandableListAdapter;
    import android.widget.ImageView;
    import android.widget.ListView;
    import android.widget.TextView;

    public class ExpandBaptwe extends BaseExpandableListAdapter {
    List<String> lis;

    Context co;
    List<ArrayList<ShowA>> child_list;
    String text;

    private SQLiteDatabase sql;

    public ExpandBaptwe(List<String> lis, Context co,
    List<ArrayList<ShowA>> child_list, String text) {
    super();
    this.lis = lis;
    this.text = text;

    this.co = co;
    this.child_list = child_list;

    MyHelp my = new MyHelp(co, "users", null, 1);
    sql = my.getReadableDatabase();

    }

    @Override
    public int getGroupCount() {
    // TODO Auto-generated method stub
    return lis.size();
    }

    @Override
    public int getChildrenCount(int groupPosition) {
    /*String title_group = lis.get(groupPosition);
    System.out.println(title_group + "====================");
    // 通过向数据库查询出对应的二级列表的信息
    Cursor c = sql.rawQuery("select * from use where ctitle = ?",
    new String[] { title_group });
    System.out.println(lis.get(groupPosition).length());*/
    return child_list.get(groupPosition).size();
    }

    @Override
    public Object getGroup(int groupPosition) {
    return groupPosition;

    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
    return childPosition;

    }

    @Override
    public long getGroupId(int groupPosition) {
    // TODO Auto-generated method stub
    return groupPosition;
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
    // TODO Auto-generated method stub
    return childPosition;
    }

    @Override
    public boolean hasStableIds() {
    // TODO Auto-generated method stub
    return false;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
    View convertView, ViewGroup parent) {
    View view = View.inflate(co,
    android.R.layout.simple_expandable_list_item_1, null);
    TextView text = (TextView) view.findViewById(android.R.id.text1);

    text.setText(lis.get(groupPosition));
    return view;
    }

    @Override
    public View getChildView(int groupPosition, int childPosition,
    boolean isLastChild, View convertView, ViewGroup parent) {

    View view_layout = View.inflate(co, R.layout.apater, null);
    TextView t1 = (TextView) view_layout.findViewById(R.id.des);
    TextView t2 = (TextView) view_layout.findViewById(R.id.time);
    ImageView t3 = (ImageView) view_layout.findViewById(R.id.image);
    /*
    * Cursor c = sql.rawQuery("select * from use where ctitle =?", new
    * String[] { lis.get(groupPosition)}); List<Myinfo> list = new
    * ArrayList<Myinfo>();
    *
    * while (c.moveToNext()) { String s =
    * c.getString(c.getColumnIndex("title")); list.add(new Myinfo(s));
    *
    * }
    */

    //t1.setText(list.get(childPosition).getTitle());

    // List<Myinfo> liss=new ArrayList<Myinfo>();

    ShowA a = child_list.get(groupPosition).get(childPosition);
    t1.setText(a.getDescript());
    t2.setText(a.getTitle());
    BitmapUtils bit = new BitmapUtils(co);
    bit.display(t3, a.getPicurl());

    // 设置字体颜色

    if (text != null) {
    String str = t2.getText().toString();
    int id1 = str.indexOf(text);
    if (id1 != -1) {
    int end = id1 + text.length();
    SpannableStringBuilder builder = new SpannableStringBuilder(str);
    ForegroundColorSpan redSpan = new ForegroundColorSpan(Color.RED);
    builder.setSpan(redSpan, id1, end,
    Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
    t2.setText(builder);
    }

    }

    return view_layout;

    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
    // TODO Auto-generated method stub
    return true;
    }

    }

    ////数据库

    package com.exaple.Exapa;

    import android.content.Context;
    import android.database.sqlite.SQLiteDatabase;
    import android.database.sqlite.SQLiteDatabase.CursorFactory;
    import android.database.sqlite.SQLiteOpenHelper;

    public class MyHelp extends SQLiteOpenHelper{

    public MyHelp(Context context, String name, CursorFactory factory,
    int version) {
    super(context, name, factory, version);
    // TODO Auto-generated constructor stub
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
    db.execSQL("create table user(id integer,ctitle)");
    db.execSQL("create table use(id integer,ctime,ctitle,descript,picurl,title)");


    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    // TODO Auto-generated method stub

    }

    }

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  • 原文地址:https://www.cnblogs.com/jsonfan/p/5158172.html
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