<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_height="wrap_content" android:paddingBottom="4dip"    android:layout_width="fill_parent">    <TextView android:layout_width="wrap_content"        android:layout_below="@+id/ItemImage" android:layout_height="wrap_content"        android:text="TextView01" android:layout_centerHorizontal="true"        android:id="@+id/ItemText">    </TextView></RelativeLayout> 

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="fill_parent"    android:layout_height="fill_parent">    <Button android:layout_height="wrap_content"        android:layout_width="fill_parent" android:id="@+id/btnCreateDB"        android:text="創(chuàng)建數(shù)據(jù)庫(kù)"></Button>    <Button android:layout_height="wrap_content"        android:layout_width="fill_parent" android:text="插入一串實(shí)驗(yàn)數(shù)據(jù)" android:id="@+id/btnInsertRec"></Button>    <Button android:layout_height="wrap_content" android:id="@+id/btnClose"        android:text="關(guān)閉數(shù)據(jù)庫(kù)" android:layout_width="fill_parent"></Button>    <EditText android:text="@+id/EditText01" android:id="@+id/EditText01"        android:layout_width="fill_parent" android:layout_height="256dip"></EditText>    <GridView android:id="@+id/gridview" android:layout_width="fill_parent"        android:layout_height="32dip" android:numColumns="auto_fit"        android:columnWidth="40dip"></GridView></LinearLayout>

package com.testSQLite;  import java.util.ArrayList; import java.util.HashMap; import android.app.Activity; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.GridView; import android.widget.SimpleAdapter;  public class testSQLite extends Activity {   /** Called when the activity is first created. */   Button btnCreateDB, btnInsert, btnClose;   EditText edtSQL;//顯示分頁(yè)數(shù)據(jù)   SQLiteDatabase db;   int id;//添加記錄時(shí)的id累加標(biāo)記，必須全局   static final int PageSize=10;//分頁(yè)時(shí)，每頁(yè)的數(shù)據(jù)總數(shù)   private static final String TABLE_NAME = "stu";   private static final String ID = "id";   private static final String NAME = "name";      SimpleAdapter saPageID;// 分頁(yè)欄適配器   ArrayList<HashMap<String, String>> lstPageID;// 分頁(yè)欄的數(shù)據(jù)源，與PageSize和數(shù)據(jù)總數(shù)相關(guān)    @Override   public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);     btnCreateDB = (Button) this.findViewById(R.id.btnCreateDB);     btnCreateDB.setOnClickListener(new ClickEvent());      btnInsert = (Button) this.findViewById(R.id.btnInsertRec);     btnInsert.setOnClickListener(new ClickEvent());      btnClose = (Button) this.findViewById(R.id.btnClose);     btnClose.setOnClickListener(new ClickEvent());          edtSQL=(EditText)this.findViewById(R.id.EditText01);          GridView gridview = (GridView) findViewById(R.id.gridview);//分頁(yè)欄控件     // 生成動(dòng)態(tài)數(shù)組，并且轉(zhuǎn)入數(shù)據(jù)     lstPageID = new ArrayList<HashMap<String, String>>();      // 生成適配器的ImageItem <====> 動(dòng)態(tài)數(shù)組的元素，兩者一一對(duì)應(yīng)     saPageID = new SimpleAdapter(testSQLite.this, // 沒(méi)什么解釋         lstPageID,// 數(shù)據(jù)來(lái)源         R.layout.pagebuttons,//XML實(shí)現(xiàn)         new String[] { "ItemText" },         new int[] { R.id.ItemText });      // 添加并且顯示     gridview.setAdapter(saPageID);     // 添加消息處理     gridview.setOnItemClickListener(new OnItemClickListener(){        @Override       public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,           long arg3) {         LoadPage(arg2);//根據(jù)所選分頁(yè)讀取對(duì)應(yīng)的數(shù)據(jù)       }     });    }       class ClickEvent implements View.OnClickListener {      @Override     public void onClick(View v) {       if (v == btnCreateDB) {         CreateDB();       } else if (v == btnInsert) {         InsertRecord(16);//插入16條記錄         RefreshPage();       }else if (v == btnClose) {         db.close();       }     }    }       /*    * 讀取指定ID的分頁(yè)數(shù)據(jù)    * SQL:Select * From TABLE_NAME Limit 9 Offset 10;    * 表示從TABLE_NAME表獲取數(shù)據(jù)，跳過(guò)10行，取9行    */   void LoadPage(int pageID)   {     String sql= "select * from " + TABLE_NAME +      " Limit "+String.valueOf(PageSize)+ " Offset " +String.valueOf(pageID*PageSize);     Cursor rec = db.rawQuery(sql, null);      setTitle("當(dāng)前分頁(yè)的數(shù)據(jù)總數(shù):"+String.valueOf(rec.getCount()));          // 取得字段名稱(chēng)     String title = "";     int colCount = rec.getColumnCount();     for (int i = 0; i < colCount; i++)       title = title + rec.getColumnName(i) + "   ";           // 列舉出所有數(shù)據(jù)     String content="";     int recCount=rec.getCount();     for (int i = 0; i < recCount; i++) {//定位到一條數(shù)據(jù)       rec.moveToPosition(i);       for(int ii=0;ii<colCount;ii++)//定位到一條數(shù)據(jù)中的每個(gè)字段       {         content=content+rec.getString(ii)+"   ";       }       content=content+"/r/n";     }          edtSQL.setText(title+"/r/n"+content);//顯示出來(lái)     rec.close();   }      /*    * 在內(nèi)存創(chuàng)建數(shù)據(jù)庫(kù)和數(shù)據(jù)表    */   void CreateDB() {     // 在內(nèi)存創(chuàng)建數(shù)據(jù)庫(kù)     db = SQLiteDatabase.create(null);     Log.e("DB Path", db.getPath());     String amount = String.valueOf(databaseList().length);     Log.e("DB amount", amount);     // 創(chuàng)建數(shù)據(jù)表     String sql = "CREATE TABLE " + TABLE_NAME + " (" + ID         + " text not null, " + NAME + " text not null " + ");";     try {       db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);       db.execSQL(sql);     } catch (SQLException e) {}   }    /*    * 插入N條數(shù)據(jù)    */   void InsertRecord(int n) {     int total = id + n;     for (; id < total; id++) {       String sql = "insert into " + TABLE_NAME + " (" + ID + ", " + NAME           + ") values('" + String.valueOf(id) + "', 'test');";       try {         db.execSQL(sql);       } catch (SQLException e) {       }     }   }    /*    * 插入之后刷新分頁(yè)    */   void RefreshPage()   {     String sql = "select count(*) from " + TABLE_NAME;     Cursor rec = db.rawQuery(sql, null);     rec.moveToLast();     long recSize=rec.getLong(0);//取得總數(shù)     rec.close();     int pageNum=(int)(recSize/PageSize) + 1;//取得分頁(yè)數(shù)          lstPageID.clear();     for (int i = 0; i < pageNum; i++) {       HashMap<String, String> map = new HashMap<String, String>();       map.put("ItemText", "No." + String.valueOf(i));       lstPageID.add(map);     }     saPageID.notifyDataSetChanged();   } }