上篇文章我们的那个登陆界面比较简陋，这篇文章稍微对这块进行了修改，如下
看到那个文本框中的图片和文本框中的文字了吗
图片就是上面代码中的drawableLeft这个属性来设置，而文字则是通过android:hint来设置
其文字是设置在string.xml中
内容如下
个人理财 用户登录 用户名: 密 码: 重复密码: 角色: 管理员 登 录 请输入您的用户名 请输入您的密码 请再次输入您的密码 #fff000 取消 确定 用户注册 系统参数 数据备份 欢迎您， 显示密码 提示 用户名不能为空! 密码不能为空! 重复密码和密码不一致! 保存成功! 密码长度必须介于6到15位!
OK，通过设置android:hint="@string/hintInputUserNo"就可以实现水印效果。
OK，今天来看一下登录成功的界面以及功能
首先是登录成功后，会将登录用户的用户名传递给上面的界面。
public class index extends Activity { TextView labUser; ImageButton imgBtnUserRegister; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.index); labUser = (TextView) this.findViewById(R.id.labUser); imgBtnUserRegister=(ImageButton)this.findViewById(R.id.imgBtnUserRegister); imgBtnUserRegister.setOnClickListener(new OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(index.this,userregister.class); startActivityForResult(intent, 0); } }); Init(); } private void Init() { Bundle bundle = getIntent().getExtras(); String userNo = bundle.getString("userNo"); labUser.setText(userNo); }} 在初始化Init方法中，接收到登陆界面传递过来的userNo，显示在TextView中。Index界面的代码如下
本界面采用TabelLayout布局。我们点击imgBtnUserRegister按钮，跳转到用户注册界面
Intent intent = new Intent(); intent.setClass(index.this,userregister.class); startActivityForResult(intent, 0);
界面UI代码如下
点击确定按钮，注册用户。
btnSure.setOnClickListener(new OnClickListener() { public void onClick(View v) { String userName = txtUserName.getText().toString().trim(); String pwd = txtPwd.getText().toString().trim(); String rePwd = txtRePwd.getText().toString().trim(); String isAdmin = chkRole.isChecked() ? "1" : "0"; if (!CheckInput(userName, pwd, rePwd)) return; SoapObject response = GetServerResponse(userName, pwd, isAdmin); Boolean isSuccess = Boolean.valueOf(response.getProperty( "IsSuccess").toString()); if (isSuccess) { ShowMessage(R.string.SaveSuccess); } else { String errorMsg = response.getProperty("ErrorMessage") .toString(); new AlertDialog.Builder(owner).setTitle( R.string.WarningMsgTitle).setMessage(errorMsg) .setIcon(R.drawable.info).setPositiveButton("确定", new DialogInterface.OnClickListener() { public void onClick( DialogInterface dialoginterface, int i) { txtUserName.setText(""); txtPwd.setText(""); txtRePwd.setText(""); chkRole.setChecked(false); } }).show(); } } }); 首先先Check输入的用户名和密码等
private Boolean CheckInput(String userName, String pwd, String rePwd) { if (userName == null || userName.equals("")) { new AlertDialog.Builder(this).setTitle(R.string.WarningMsgTitle) .setMessage(R.string.UserNoIsEmpty) .setIcon(R.drawable.info).setPositiveButton("确定", new DialogInterface.OnClickListener() { public void onClick( DialogInterface dialoginterface, int i) { txtUserName.requestFocus(); } }).show(); return false; } 此处省略部分代码 如下都是一些Check。
OK，到此一个用户就注册成功了。我们先看一下.net webservice端。
namespace GRLC.WebService{ /// /// UserInfoMng 的摘要说明 /// [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消注释以下行。 // [System.Web.Script.Services.ScriptService] public class UserInfoMng : System.Web.Services.WebService { [WebMethod] public CommonResponse UserInfoAdd(UserEntity userInfo) { return UserInfoBiz.GetInstance().AddUserInfo(userInfo); } }} 下面是Biz层代码
namespace GRLC.Biz{ public class UserInfoBiz { static UserInfoBiz userInfoBiz = new UserInfoBiz(); private UserInfoBiz() { } public static UserInfoBiz GetInstance() { return userInfoBiz; } const string moduleName = "UserInfoModule"; private string GetMessageByName(string msgName) { return CommonFunction.GetMessageByModuleAndName(moduleName, msgName); } private string AddFaild { get { return this.GetMessageByName("AddFailed"); } } private string UserHasExists { get { return this.GetMessageByName("UserHasExists"); } } public CommonResponse AddUserInfo(UserEntity userEntity) { if (UserInfoMngDAL.GetInstance().IsUserInfoExists(userEntity.UseNo)) { return new CommonResponse() { IsSuccess = false, ErrorMessage = UserHasExists }; } User user = new User(); user.UseNo = userEntity.UseNo; user.Pwd = Cryptor.Encrypt(userEntity.Pwd); user.IsAdmin = userEntity.IsAdmin; int suc = UserInfoMngDAL.GetInstance().AddUserInfo(user); if (suc > 0) { return new CommonResponse() { IsSuccess = true }; } return new CommonResponse() { IsSuccess = false, ErrorMessage = AddFaild }; } }} 其中UserInfoMngDAL的定义如下
namespace GRLC.DAL{ public class UserInfoMngDAL { static UserInfoMngDAL userInfoMngDAL = new UserInfoMngDAL(); private UserInfoMngDAL() { } public static UserInfoMngDAL GetInstance() { return userInfoMngDAL; } public int AddUserInfo(User user) { using(BonusEntities bonusEntities=new BonusEntities()) { bonusEntities.User.Add(user); return bonusEntities.SaveChanges(); } } public bool IsUserInfoExists(string userNo) { using (BonusEntities bonusEntities = new BonusEntities()) { return bonusEntities.User.Any(u => u.UseNo == userNo); } } }} 其中UserEntity的定义如下
namespace GRLC.Model.DTO{ public class UserEntity { public string UseNo { get; set; } public string Pwd { get; set; } public string IsAdmin { get; set; } }} 到时候这个实体需要和Android那边传递的实体保持一致
Ok，我们接下来看看Android是如何调用的。
private SoapObject GetServerResponse(String userName, String pwd, String isAdmin) { SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); UserEntity userEntity = new UserEntity(); userEntity.setProperty(0, userName); userEntity.setProperty(1, pwd); userEntity.setProperty(2, isAdmin); PropertyInfo pi = new PropertyInfo(); pi.setName("userInfo"); pi.setValue(userEntity); pi.setType(userEntity.getClass()); request.addProperty(pi);// 将自定参数加入请求对象中 SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope( SoapEnvelope.VER11); soapEnvelope.dotNet = true; soapEnvelope.setOutputSoapObject(request); HttpTransportSE httpTS = new HttpTransportSE(URL); soapEnvelope.bodyOut = httpTS; soapEnvelope.setOutputSoapObject(request);// 设置请求参数 soapEnvelope.addMapping(NAMESPACE, "UserEntity", userEntity.getClass()); try { httpTS.call(SOAP_ACTION, soapEnvelope); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XmlPullParserException e) { // TODO Auto-generated catch block e.printStackTrace(); } SoapObject result = null; try { result = (SoapObject) soapEnvelope.getResponse(); } catch (SoapFault e) { // TODO Auto-generated catch block e.printStackTrace(); } return result; } OK，调用只要将数据对象传递正确，就不会调用失败。android中定义的UserEntity如下
package bruce.grlc.model.Entity;import java.util.Hashtable;import org.ksoap2.serialization.KvmSerializable;import org.ksoap2.serialization.PropertyInfo;public class UserEntity implements KvmSerializable { private String UseNo; private String Pwd; private String IsAdmin; @Override public Object getProperty(int arg0) { // TODO Auto-generated method stub Object property = null; switch (arg0) { case 0: property = this.UseNo; break; case 1: property = this.Pwd; break; case 2: property = this.IsAdmin; default: break; } return property; } @Override public int getPropertyCount() { // TODO Auto-generated method stub return 3; } @Override public void getPropertyInfo(int arg0, Hashtable arg1, PropertyInfo arg2) { // TODO Auto-generated method stub switch (arg0) { case 0: arg2.type = PropertyInfo.STRING_CLASS; arg2.name = "UseNo"; break; case 1: arg2.type = PropertyInfo.STRING_CLASS; arg2.name = "Pwd"; break; case 2: arg2.type = PropertyInfo.STRING_CLASS; arg2.name = "IsAdmin"; default: break; } } @Override public void setProperty(int arg0, Object arg1) { // TODO Auto-generated method stub if (arg1 == null) return; switch (arg0) { case 0: this.UseNo = arg1.toString(); break; case 1: this.Pwd = arg1.toString(); break; case 2: this.IsAdmin = arg1.toString(); break; default: break; } }} 必须继承KvmSerializable这个抽象接口，并实现它的抽象方法。
public abstract interface org.ksoap2.serialization.KvmSerializable { // Method descriptor #4 (I)Ljava/lang/Object; public abstract java.lang.Object getProperty(int arg0); // Method descriptor #6 ()I public abstract int getPropertyCount(); // Method descriptor #8 (ILjava/lang/Object;)V public abstract void setProperty(int arg0, java.lang.Object arg1); // Method descriptor #10 (ILjava/util/Hashtable;Lorg/ksoap2/serialization/PropertyInfo;)V public abstract void getPropertyInfo(int arg0, java.util.Hashtable arg1, org.ksoap2.serialization.PropertyInfo arg2);} OK，调用就是这么简单。最后，在界面操作的时候，当焦点在文本框中时，总是会弹出输入法，遮挡按钮，为了解决这一问题，需要采取两种方法
第一种，在AndroidManifest.xml中增加android:windowSoftInputMode="adjustResiz
这句的意思是当输入法出现时，界面自适应，但是有时候界面上的控件比较多时，依然会遮住某些控件。所以如下
第二种解决方案，在触摸屏幕其他地方时，自动关闭输入法
public boolean onTouchEvent(MotionEvent event) { InputMethodManager im = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); im.hideSoftInputFromWindow(getCurrentFocus() .getApplicationWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); return super.onTouchEvent(event); } OK，本篇到此结束。