实验8

实验报告

课程名称

基于Android平台移动互联网开发

实验日期

2016年5月6日

实验项目名称

SQLite数据库操作

实验地点

S30010

实验类型

□验证型    √设计型    □综合型

学  时

一、实验目的及要求（本实验所涉及并要求掌握的知识点）
  1. 设计一个个人通讯录，掌握Android平台下的数据库开发，该个人通讯录主要包括联系人列表和联系人详细信息等界面。
  2. 程序主界面是通讯录的目录显示手机上联系人的名称。点击联系人的姓名可以显示联系人的详细信息。单击图标按钮可以添加联系人和删除联系人。

二、实验环境（本实验所使用的硬件设备和相关软件）

(1)PC机

(2)操作系统：Windows XP

(3)软件： Eclipse, JDK1.6，Android SDK，ADT

三、实验内容及步骤

（1）  确定数据库的数据结构。

（2）  新建工程，修改布局文件，定义字符串资源。

（3）  开发布局文件activity_main.xml用于显示联系人列表。

（4）  layout目录下新建一个detail.xml,用于显示联系人详细信息。

（5）  开发数据库辅助类MyOpenHelper类

（6）  DetailActivity端开发实现数据库增加、删除、修改记录等操作

（7）  新建Activity名为DetailActivity.java，实现联系人详细信息显示功能。

四、实验结果（本实验源程序清单及运行结果或实验结论、实验设计图）

代码：

ackage com.example.tongxunlu;



import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;

public class MainActivity extends Activity {
    Button btn1,btn2;
    ListView listview;
    public static MyOpenHelper dbhelper;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn1=(Button)findViewById(R.id.button1);
        btn2=(Button)findViewById(R.id.button2);
        listview=(ListView)findViewById(R.id.lv);
        dbhelper=new MyOpenHelper(MainActivity.this, "myDict.db10", 1);
        Cursor cursor=dbhelper.getReadableDatabase().rawQuery("select * from contacts", null);
        inflateList(cursor);
        btn1.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                Intent intent=new Intent();
                intent.setClass(MainActivity.this, BaocunActivity.class);
                startActivity(intent);
                MainActivity.this.finish();
            }
        });
        
       btn2.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                Intent intent=new Intent();
                intent.setClass(MainActivity.this, shanchuActivity.class);
                startActivity(intent);
                MainActivity.this.finish();
            }
        });
        


        
    }
     private void inflateList(Cursor cursor) {
            SimpleCursorAdapter simpleCursorAdapter=new SimpleCursorAdapter(MainActivity.this,
                    R.layout.lian, cursor, new String[]{"name","phone"}, 
                    new int[]{R.id.text1,R.id.text2}, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
            listview.setAdapter(simpleCursorAdapter);
            listview.setOnItemClickListener(new ItemClickListener()); 
        }
     private final class ItemClickListener implements OnItemClickListener{  
          
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
                ListView listview = (ListView) parent; 
                Cursor cursor1 = (Cursor) listview.getItemAtPosition(position);
                String personid = cursor1.getString(cursor1.getColumnIndex("name"));
                String personid1 = cursor1.getString(cursor1.getColumnIndex("phone")); 
                String personid2 = cursor1.getString(cursor1.getColumnIndex("mobile"));
                String personid3 = cursor1.getString(cursor1.getColumnIndex("email"));
                String personid4 = cursor1.getString(cursor1.getColumnIndex("post"));
                String personid5 = cursor1.getString(cursor1.getColumnIndex("addr"));
                String personid6 = cursor1.getString(cursor1.getColumnIndex("comp"));
                Intent intent=new Intent();
                intent.putExtra("username1",personid); 
                intent.putExtra("userphone1",personid1);
                intent.putExtra("usermobile1",personid2);
                intent.putExtra("useremail1",personid3);
                intent.putExtra("userpost1",personid4);
                intent.putExtra("useraddr1",personid5);
                intent.putExtra("usercomp1",personid6);
                intent.setClass(MainActivity.this, DetailActivity.class);
                startActivity(intent);
                MainActivity.this.finish();
                  
            }  
        }   
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}
package com.example.tongxunlu;



import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;


public class shanchuActivity extends Activity {
    Button btn;
    ListView listview1;
    Cursor cursor;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.shanchu);
        listview1=(ListView)findViewById(R.id.lv1);
        btn=(Button)findViewById(R.id.btn2);
        cursor=MainActivity.dbhelper.getReadableDatabase().rawQuery("select * from contacts", null);
        inflateList(cursor);
         btn.setOnClickListener(new OnClickListener() {
                
                @Override
                public void onClick(View arg0) {
                    Intent intent=new Intent();
                    intent.setClass(shanchuActivity.this,MainActivity.class);
                    startActivity(intent);
                    shanchuActivity.this.finish();
                }
            });
    }
    
    private void inflateList(Cursor cursor) {
        SimpleCursorAdapter simpleCursorAdapter=new SimpleCursorAdapter(shanchuActivity.this,
                R.layout.lian, cursor, new String[]{"name","phone"}, 
                new int[]{R.id.text1,R.id.text2}, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
        listview1.setAdapter(simpleCursorAdapter);
        listview1.setOnItemClickListener(new ItemClickListener()); 
        
    }
    private final class ItemClickListener implements OnItemClickListener{  
          
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
            ListView listview = (ListView) parent; 
            Cursor cursor1 = (Cursor) listview.getItemAtPosition(position);
            String personid = cursor1.getString(cursor1.getColumnIndex("name"));
            SQLiteDatabase db =  MainActivity.dbhelper.getWritableDatabase();
            db.delete("contacts", "name="+"'"+personid+"'", null);
            db.close();
           
            Toast.makeText(shanchuActivity.this, "删除成功！", Toast.LENGTH_LONG).show();
            inflateList(cursor);
        }  
    }
    
    
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}
package com.example.tongxunlu;


import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

public class BaocunActivity extends Activity{
    
    EditText editTextNAME,editTextPHONE,editTextMOBILE,editTextEMAIL,editTextPOST,editTextADDR,editTextCOMP;
    ListView listview;

    Button btn,btn1;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.baocun);
        btn=(Button)findViewById(R.id.button1);
        btn1=(Button)findViewById(R.id.button2);
        editTextNAME=(EditText)findViewById(R.id.editText1);
        editTextPHONE=(EditText)findViewById(R.id.editText2);
        editTextMOBILE=(EditText)findViewById(R.id.editText3);
        editTextEMAIL=(EditText)findViewById(R.id.editText4);
        editTextPOST=(EditText)findViewById(R.id.editText5);
        editTextADDR=(EditText)findViewById(R.id.editText6);
        editTextCOMP=(EditText)findViewById(R.id.editText7);
        listview=(ListView)findViewById(R.id.lv);
        btn.setOnClickListener(new OnClickListener() {
                
                @Override
                public void onClick(View arg0) {
                    String name,phone,mobile,email,post,addr,comp;
                    name=editTextNAME.getText().toString();
                    phone=editTextPHONE.getText().toString();
                    mobile=editTextMOBILE.getText().toString();
                    email=editTextEMAIL.getText().toString();
                    post=editTextPOST.getText().toString();
                    addr=editTextADDR.getText().toString();
                    comp=editTextCOMP.getText().toString();
                    MainActivity.dbhelper.getReadableDatabase().execSQL("insert into contacts values(null,?,?,?,?,?,?,?)",new String[]{name,phone,mobile,email,post,addr,comp});
                    Toast.makeText(BaocunActivity.this, "保存成功！", Toast.LENGTH_LONG).show();
                    
                }
            });
        btn1.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                
                Intent intent=new Intent();
                intent.setClass(BaocunActivity.this,MainActivity.class);
                startActivity(intent);
                BaocunActivity.this.finish();
            }
        });
        
        
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }


}

运行结果：（截图）

五、实验总结（对本实验结果进行分析，实验心得体会及改进意见）

       这次实验老师在上课的时候教过sql，但是这个实验太难，所以实现起来感觉超级难，而且前面的知识又忘了，在设计通讯录的过程中，出现了很多错误，还是要百度解决问题。

实验评语

 

实验成绩

 

指导教师签名：              年   月   日
           
【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/woaiQ1314/p/5487568.html