Android ListView 数据绑定

第一步：写一个SqliteDBHelper类

  1 package com.example.gzznproject;

  2 

  3 import android.content.ContentValues;

  4 import android.content.Context;

  5 import android.database.Cursor;

  6 import android.database.sqlite.SQLiteDatabase;

  7 import android.database.sqlite.SQLiteOpenHelper;

  8 

  9 public class SqliteDBHelper extends SQLiteOpenHelper{

 10     public static final String  COLUMN_ID ="ID";

 11     public static final String  COLUMN_ConstrName ="ConstrName";

 12     public static final String  COLUMN_Enginer ="Enginer";

 13     public static final String  COLUMN_DepartID ="DepartID";

 14     public static final String  COLUMN_EnginerName ="EnginerName";

 15     public static final String  COLUMN_EnginerAddress ="EnginerAddress";

 16     public static final String  COLUMN_WorkContent ="WorkContent";

 17     public static final String  COLUMN_WorkRemark ="WorkRemark";

 18     public static final String  COLUMN_TodayPlan ="TodayPlan";

 19     public static final String  COLUMN_TorrowPlan ="TorrowPlan";

 20     public static final String  COLUMN_Remark ="Remark";

 21     public static final String  COLUMN_WorkTime ="WorkTime";

 22     public static final String  COLUMN_DeletionStateCode ="DeletionStateCode";

 23     public static final String  COLUMN_Enabled ="Enabled";

 24     public static final String  COLUMN_SortCode ="SortCode";

 25     public static final String  COLUMN_Description ="Description";

 26     public static final String  COLUMN_CreateOn ="CreateOn";

 27     public static final String  COLUMN_CreateUserId ="CreateUserId";

 28     public static final String  COLUMN_CreateBy ="CreateBy";

 29     public static final String  COLUMN_ModifiedOn ="ModifiedOn";

 30     public static final String  COLUMN_ModifiedUserId ="ModifiedUserId";

 31     public static final String  COLUMN_ModifiedBy ="ModifiedBy";

 32     public static final String  COLUMN_Crsign ="Crsign";

 33     public static final String  COLUMN_Telphone ="Telphone";

 34     public static final String  COLUMN_Departname ="Departname";

 35     public static final String  COLUMN_Itemid ="Itemid";

 36     public static final String  COLUMN_Itemname ="Itemname";

 37     public static final String     DATABASE_NAME = "TestDB.db";

 38     public static final String     USERS_TABLE = "myLog";

 39     

 40     public static final String  ADMIN_USERID="Id";

 41     public static final String  ADMIN_USERNAME="userName";

 42     public static final String  ADMIN_USERPWD="userPwd";

 43     public static final String  ADMIN_USERADDRESS="address";

 44     

 45     public static final String     TABLE_NAME="CREATE TABLE "+ USERS_TABLE +"("+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " 

 46     +COLUMN_ConstrName+" text, "+COLUMN_Enginer+" text, "+COLUMN_DepartID+" text,"+COLUMN_EnginerName+" text,"+COLUMN_EnginerAddress+" text, "

 47     +COLUMN_WorkContent+" text, "+COLUMN_WorkRemark+" text, "+COLUMN_TodayPlan+" text,"+COLUMN_TorrowPlan+" text, "+COLUMN_Remark+" text,"

 48     +COLUMN_WorkTime+" text, "+COLUMN_DeletionStateCode+" text, "+COLUMN_Enabled+" text,"+COLUMN_SortCode+" text,"+COLUMN_Description+" text, "

 49     +COLUMN_CreateOn+" text,"+COLUMN_CreateUserId+" text, "+COLUMN_CreateBy+" text, "+COLUMN_ModifiedOn+" text, "+COLUMN_ModifiedUserId+" text, "

 50     +COLUMN_ModifiedBy+" text, "+COLUMN_Crsign+" text, "+COLUMN_Telphone+" text, "+COLUMN_Departname+" text, "+COLUMN_Itemid+" text, "

 51     +COLUMN_Itemname+" text);";

 52  

 53     private SQLiteDatabase  db;  

 54     public SqliteDBHelper(Context c) {

 55         super(c, DATABASE_NAME,null,1);

 56         // TODO Auto-generated constructor stub

 57     }    

 58     @Override

 59     public void onCreate(SQLiteDatabase db) {

 60         // TODO Auto-generated method stub    

 61         this.db=db;

 62         db.execSQL(TABLE_NAME);        

 63     }

 64     public long Insert(ContentValues values)

 65     {

 66         SQLiteDatabase db=this.getWritableDatabase();

 67         long count= db.insert(USERS_TABLE, null, values);

 68         if(count==-1)

 69         {

 70             count=-1;

 71         }

 72         else

 73         {

 74             count=1;

 75         }

 76         db.close();

 77         return count;        

 78     }

 79     

 80     public Cursor query()

 81     {

 82         SQLiteDatabase db=this.getWritableDatabase();

 83         Cursor c=db.query(USERS_TABLE, null, null, null, null, null, null);

 84         return c;

 85     }

 86     public void Delete(int id)

 87     {    

 88         if(db==null)        

 89             db=this.getWritableDatabase();        

 90         db.execSQL("delete from myLog where ID="+id);

 91         db.close();

 92     }

 93     

 94     public void update(int id,ContentValues values) 

 95     { 

 96         SQLiteDatabase db = this.getWritableDatabase(); 

 97         String where = COLUMN_ID + " = ?"; 

 98         String[] whereValue = { Integer.toString(id) }; 

 99         db.update(USERS_TABLE, values, where, whereValue); 

100     } 

101         

102     public void Close()

103     {

104         if(db!=null)

105         {

106             db.close();

107         }

108     }

109     @Override

110     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

111         // TODO Auto-generated method stub    

112         

113     }

114 }

第二步：列表前台页面展示

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >       

    <LinearLayout  

     android:orientation="horizontal"  

     android:layout_width="fill_parent"  

     android:layout_height="wrap_content"> 



     <TextView  

      android:layout_width="150dp"  

      android:textSize="15sp"

      android:layout_height="30dp" 

      android:gravity="center_vertical|left"

      android:text="@string/txt_Name"/>  

     <TextView  

      android:layout_width="160dp"

      android:textSize="15sp"  

      android:gravity="center_vertical|right"

      android:layout_height="30dp" 

      android:text="@string/txt_wokTime"/>  

     </LinearLayout> 

     <ListView    

       android:layout_width="fill_parent"  

       android:layout_height="fill_parent"

       android:id="@+id/listView"/> 

</LinearLayout>

注意：还需要建一个item.xml文件（item文件没有后台代码）

 1 <?xml version="1.0" encoding="utf-8"?>

 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 3     android:layout_width="fill_parent"

 4     android:layout_height="fill_parent"

 5     android:orientation="horizontal" >

 6     <TextView  

 7     android:layout_width="150dp"  

 8     android:gravity="center_vertical|left"

 9     android:textSize="15sp"

10     android:layout_height="30dp"  

11     android:id="@+id/txt_ConstrName"  

12    />  

13    <TextView  

14     android:layout_width="160dp"  

15     android:gravity="center_vertical|right"

16     android:textSize="15sp"

17     android:layout_height="30dp"  

18     android:id="@+id/txt_WorkTime"  

19    /> 

20   

21 </LinearLayout>

第三步：展示loglist后台代码

package com.example.gzznproject;



import java.util.ArrayList;

import java.util.HashMap;



import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.AndroidHttpTransport;



import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.net.ConnectivityManager;

import android.os.Bundle;

import android.view.ContextMenu;

import android.view.ContextMenu.ContextMenuInfo;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnCreateContextMenuListener;

import android.widget.AdapterView.AdapterContextMenuInfo;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.Toast;



public class LogListActivity extends Activity {

    SimpleAdapter adapter;

    SqliteDBHelper helper;

    public ListView listview;

    public HashMap<String, Object> hashmap;

    public static ArrayList<HashMap<String, Object>> arrayList;

    public static int enegerid;

    public static int flagid;

    public static int userid;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.loglist);

        _getdataview();

        listview.setOnCreateContextMenuListener(listener);

    }



    // listview数据绑定

    public void _getdataview() {

        listview = (ListView) findViewById(R.id.listView);

        adapter = new SimpleAdapter(LogListActivity.this, getdata(),

                R.layout.item, new String[] { "ConstrName", "WorkTime" },

                new int[] { R.id.txt_ConstrName, R.id.txt_WorkTime });

        listview.setAdapter(adapter);

    }



    // 长按菜单

    OnCreateContextMenuListener listener = new OnCreateContextMenuListener() {

        @Override

        public void onCreateContextMenu(ContextMenu menu, View v,

                ContextMenuInfo menuInfo) {

            menu.setHeaderTitle("操作提示");

            menu.add(0, 2, 0, "文件上传");

            menu.add(0, 0, 0, "编辑");

            menu.add(0, 1, 0, "删除");

        }

    };



    @Override

    public boolean onContextItemSelected(MenuItem item) {

        final AdapterContextMenuInfo info = (AdapterContextMenuInfo) item

                .getMenuInfo();

        hashmap = arrayList.get((int) info.id);

        Object obj = hashmap.get("ID");

        int id = Integer.parseInt(String.valueOf(obj));

        if (item.getItemId() == 1) {

            if (id == -1) {

                Toast.makeText(getApplicationContext(), "没有选中数据！",

                        Toast.LENGTH_SHORT).show();

            } else {

                helper.Delete(id);

                _getdataview();

                Toast.makeText(getApplicationContext(), "数据删除成功！",

                        Toast.LENGTH_SHORT).show();

            }

        } else if (item.getItemId() == 0) {

            if (id == -1) {

                Toast.makeText(getApplicationContext(), "没有选中数据！",

                        Toast.LENGTH_SHORT).show();

            } else {

                LogManagerActivity.hashmap = hashmap;

                Intent intent = new Intent();

                intent.setClass(LogListActivity.this, LogManagerActivity.class);

                startActivity(intent);

            }

        } else if (item.getItemId() == 2) {

            String url = "http://117.34.91.186:8347/WebServices/InsertLog.asmx";

            String nameSpace = "http://tempuri.org/";

            String SOAP_ACTION = "http://tempuri.org/InserttionLog";

            String method = "InserttionLog";

            SoapObject request = new SoapObject(nameSpace, method);

            request.addProperty("Id", userid);

            request.addProperty("ConstrName", hashmap.get("ConstrName")

                    .toString() == null ? "" : hashmap.get("ConstrName")

                    .toString());

            request.addProperty("Enginer",

                    hashmap.get("Enginer").toString() == null ? "" : hashmap

                            .get("Enginer").toString());

            request.addProperty(

                    "DepartID",

                    hashmap.get("ID").toString() == null ? "" : hashmap.get(

                            "ID").toString());

            request.addProperty("EngineName", hashmap.get("EnginerName")

                    .toString() == null ? "" : hashmap.get("EnginerName")

                    .toString());

            request.addProperty("EnginerAddress", hashmap.get("EnginerAddress")

                    .toString() == null ? "" : hashmap.get("EnginerAddress")

                    .toString());

            request.addProperty("WorkContent", hashmap.get("WorkContent")

                    .toString() == null ? "" : hashmap.get("WorkContent")

                    .toString());

            request.addProperty("WorkRemark", hashmap.get("WorkRemark")

                    .toString() == null ? "" : hashmap.get("WorkRemark")

                    .toString());

            request.addProperty("TodayPlan", hashmap.get("TodayPlan")

                    .toString() == null ? "" : hashmap.get("TodayPlan")

                    .toString());

            request.addProperty("TorrowPlan", hashmap.get("TorrowPlan")

                    .toString() == null ? "" : hashmap.get("TorrowPlan")

                    .toString());

            request.addProperty("Remark",

                    hashmap.get("Remark").toString() == null ? "" : hashmap

                            .get("Remark").toString());

            request.addProperty("WorkTime",

                    hashmap.get("WorkTime").toString() == null ? "" : hashmap

                            .get("WorkTime").toString());



            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(



                    SoapEnvelope.VER11);

            envelope.bodyOut = request;

            envelope.dotNet = true;

            AndroidHttpTransport transport = new AndroidHttpTransport(url);

            try {

                if (isOpenNetwork()) {

                    transport.call(SOAP_ACTION, envelope);

                    if (envelope.getResponse() != null) {

                        Object object = envelope.getResponse();

                        boolean result = Boolean

                                .parseBoolean(object.toString());

                        if (result == true) {

                            Toast.makeText(getApplicationContext(), "上传成功！",

                                    Toast.LENGTH_SHORT).show();

                        } else {

                            Toast.makeText(getApplicationContext(), "上传失败！",

                                    Toast.LENGTH_SHORT).show();

                        }

                    }

                } else {

                    Toast.makeText(getApplicationContext(), "当前网络不可用不能上传文件！",

                            Toast.LENGTH_SHORT).show();

                }

            } catch (Exception e) {

                e.printStackTrace();

            }

        } else {

            return false;

        }

        return super.onContextItemSelected(item);

    }



    // 绑定listview的数据源

    public ArrayList<HashMap<String, Object>> getdata() {

        helper = new SqliteDBHelper(this);

        SQLiteDatabase mdb = helper.getReadableDatabase();

        Cursor c = mdb.rawQuery("select * from myLog", null);

        arrayList = new ArrayList<HashMap<String, Object>>();

        while (c.moveToNext()) {

            hashmap = new HashMap<String, Object>();

            hashmap.put("ID", c.getString(0));

            hashmap.put("ConstrName", c.getString(1));

            hashmap.put("Enginer", c.getString(2));

            hashmap.put("DepartID", c.getString(3));

            hashmap.put("EnginerName", c.getString(4));

            hashmap.put("EnginerAddress", c.getString(5));

            hashmap.put("WorkContent", c.getString(6));

            hashmap.put("WorkRemark", c.getString(7));

            hashmap.put("TodayPlan", c.getString(8));

            hashmap.put("TorrowPlan", c.getString(9));

            hashmap.put("Remark", c.getString(10));

            hashmap.put("WorkTime", c.getString(11));

            hashmap.put("DeletionStateCode", c.getString(12));

            hashmap.put("Enabled", c.getString(13));

            hashmap.put("SortCode", c.getString(14));

            hashmap.put("Description", c.getString(15));

            hashmap.put("CreateOn", c.getString(16));

            hashmap.put("CreateUserId", c.getString(17));

            hashmap.put("CreateBy", c.getString(18));

            hashmap.put("ModifiedOn", c.getString(19));

            hashmap.put("ModifiedUserId", c.getString(20));

            hashmap.put("ModifiedBy", c.getString(21));

            hashmap.put("Crsign", c.getString(22));

            hashmap.put("Telphone", c.getString(23));

            hashmap.put("Departname", c.getString(24));

            hashmap.put("Itemid", c.getString(25));

            hashmap.put("Itemname", c.getString(26));

            arrayList.add(hashmap);

        }

        return arrayList;

    }



    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // getMenuInflater().inflate(R.menu.main, menu);

        menu.add(0, 1, 1, "添加数据");

        menu.add(0, 2, 1, "树形结构");

        return true;

    }



    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        if (item.getItemId() == 1) {

            Intent itent = new Intent();

            itent.setClass(LogListActivity.this, LogManagerActivity.class);

            startActivity(itent);

        } else {

            Intent itent = new Intent();

            itent.setClass(LogListActivity.this, TreeStructure.class);

            startActivity(itent);

        }

        return false;

    }



    // 监听网络状态

    private boolean isOpenNetwork() {

        ConnectivityManager connManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

        if (connManager.getActiveNetworkInfo() != null) {

            return connManager.getActiveNetworkInfo().isAvailable();

        }

        return false;

    }

}

这里还要注意需要在libs文件夹中导入：ksoap2-android-assembly-2.3-jar-with-dependencies.jar 包

还要在AndroidManifest.xml中加入这些权限：

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

 大功告成，Listview数据绑定成功！