Android源码之仓库管理

源码简介

一个简单的仓库管理系统、适合新手学习。
源码截图

源码片段

rotected void onCreate(Bundle savedInstanceState) { 
        // TODO Auto-generated method stub 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.userregister); 
        name = (EditText) findViewById(R.id.usename); 
        pass = (EditText) findViewById(R.id.password); 
        passsure = (EditText) findViewById(R.id.passwordsure); 
        workid = (EditText) findViewById(R.id.useide); 
        db = new SqlHelpdemo(getApplicationContext(), "store.db", null, 1); 
        sDatabase = db.getWritableDatabase(); 
  
    } 
  
    public void sure(View v) { 
        db = new SqlHelpdemo(getApplicationContext(), "store.db", null, 1); 
        sDatabase = db.getWritableDatabase(); 
        if (name.getText().toString().equals("") 
                || pass.getText().toString().equals("") 
                || passsure.getText().toString().equals("") 
                || workid.getText().toString().equals("")) { 
  
            DialogDemo.builder(UserRegister.this, "错误信息", "请填写完整信息！"); 
  
        } else if (!pass.getText().toString() 
                .equals(passsure.getText().toString())) { 
            DialogDemo.builder(UserRegister.this, "错误信息", "两次密码输入不一致！"); 
        } else { 
            String ename = name.getText().toString(); 
            String epass = pass.getText().toString(); 
            String eid = workid.getText().toString(); 
            // 查询语句 
            String selectStr = "select username from user_info"; 
            Cursor select_cursor = sDatabase.rawQuery(selectStr, null); 
            select_cursor.moveToFirst(); 
            String string = null; 
            do { 
                try { 
                    string = select_cursor.getString(0); 
                } catch (Exception e) { 
                    // TODO: handle exception 
                    string = ""; 
                } 
                if (string.equals(ename)) { 
                    DialogDemo.builder(UserRegister.this, "错误信息", 
                            "用户名已存在，请另设用户名"); 
                    select_cursor.close(); 
                    break; 
  
                } 
            } while (select_cursor.moveToNext()); 
            // 没有重名注册开始 
            if (!string.equals(ename)) { 
                // 定义ID 
                int id = 0; 
                String select = "select max(_id) from user_info"; 
                Cursor seCursor = sDatabase.rawQuery(select, null); 
                try { 
                    seCursor.moveToFirst(); 
                    id = Integer.parseInt(seCursor.getString(0)); 
                    id += 1; 
                } catch (Exception e) { 
                    // TODO: handle exception 
                    id = 0; 
                } 
                sDatabase.execSQL("insert into user_info values('" + id + "','" 
                        + ename + "','" + epass + "','" 
                        + eid + "')"); 
                DialogDemo.builder(UserRegister.this, "提示", "注册成功，请返回登录界面登录"); 
                  
                seCursor.close(); 
              
                  
            } 
        } 
  
    } 
  
} 

源码链接：http://down.51cto.com/data/2009972