Mono for Android calls webserver Service

Implementation-simple calculator function:

The program is divided into two parts,

1. websever Service

2. Android Client

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1. websever Service

(Only icalculator. CS, Calculator. CS are used in the Service class. Other interface classes and methods used to implement this interface are not used in this program)

1-1 icalculator Interface Class

/*************************************** * ****** Class ID: * ** use: implement the calculator interface **. OPERATOR: LCB *** write date: *************************************** */using system; using system. collections. generic; using system. text; using system. servicemodel; namespace ceservice {[servicecontract] public interface icalculator {// <summary> // addition /// </Summary> // <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> [operationcontract] string add (double num1, double num2, ref double num ); /// <summary> /// subtraction /// </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> [operationcontract] string reduce (double num1, double num2, ref double num ); /// <summary> /// multiplication // </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> [operationcontract] string Division (double num1, double num2, ref double num ); /// <summary> /// division /// </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> [operationcontract] string multiplication (double num1, double num2, ref double num );}}

1-2 Implementation Interface Class Calculator

/*************************************** * ****** Class ID: * ** usage: implement the calculator class. ** OPERATOR: LCB *** write date: *************************************** */using system; using system. collections. generic; using system. text; namespace ceservice {public class calculator: icalculator {// <summary> /// addition /// </Summary> /// <Param name = "num1"> first number </param> /// <param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns>/ // Public String add (double num1, double num2, ref double num) {try {num = num1 + num2; Return "1";} catch (exception ex) {return ex. tostring ();}} /// <summary> /// subtraction /// </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> Public String reduce (double num1, double num2, ref double num) {try {num = num1-num2; Return "1";} catch (exception ex) {return ex. tostring ();}} /// <summary> /// multiplication // </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> Public String Division (double num1, double num2, ref double num) {try {num = num1 * num2; Return "1";} catch (exception ex) {return ex. tostring ();}} /// <summary> /// division /// </Summary> /// <Param name = "num1"> first number </param> /// <Param name = "num2"> second count </param> /// <Param name = "num"> result </param> /// <returns> </returns> Public String Multiplication (double num1, double num2, ref double num) {try {num = num1/num2; Return "1";} catch (exception ex) {return ex. tostring ();}}}}

1-3 app. config

<? XML version = "1.0" encoding = "UTF-8"?> <Configuration> <! -- <Appsettings> <add key = "connectionstring" value = "Data Source = .; initial catalog = yanshi2010; uid = sa; pwd = sa "/> <add key =" smsport "value =" 3 "/> <add key =" smsbudrate "value =" 19200 "/> <add key =" smsstate "value =" false "/> </appsettings> --> <system. servicemodel> <services> <! -- Platform service ------------- start --> <! -- Service interface implementation class --> <service name = "ceservice. Calculator" behaviorconfiguration = "servicebehavior"> <! -- Service interface --> <endpoint address = "" binding = "basichttpbinding" Contract = "ceservice. icalculator "/> 
Enable the Service (you all know how to write the code, and omit it. Focuses on Android)

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2. Android Client
Overall project:

2-1 add web reference (the address is set in your configuration file, for example)
2-2 main. axml

Code:

<? XML version = "1.0" encoding = "UTF-8"?> <Relativelayout xmlns: Android = "http://schemas.android.com/apk/res/android" Android: layout_width = "fill_parent" Android: layout_height = "fill_parent"> <edittext Android: Id = "@ + ID/txtphoneno" Android: layout_width = "304.0dp" Android: phonenumber = "true" Android: hint = "Enter the first number" Android: layout_height = "wrap_content" Android: layout_margintop = "5px" Android: layout_marginleft = "5px"/> <edittext Android: Id = "@ + ID/txtsms" Android: layout_width = "313.3dp" Android: layout_height = "401_dp" Android: phonenumber = "true" Android: gravity = "TOP" Android: hint = "enter the second number" Android: layout_below = "@ ID/txtphoneno"/> <button Android: id = "@ + ID/btnadd" Android: text = "plus" Android: layout_width = "69dp" Android: layout_height = "wrap_content" Android: layout_below = "@ ID/txtsms"/> <button Android: Id = "@ + ID/btnjian" Android: text = "subtraction" Android: layout_width = "69dp" Android: layout_height = "wrap_content" Android: layout_below = "@ ID/txtsms" Android: layout_torightof = "@ ID/btnadd"/> <button Android: id = "@ + ID/btncheng" Android: text = "" Android: layout_width = "69dp" Android: layout_height = "wrap_content" Android: layout_below = "@ ID/txtsms" Android: layout_torightof = "@ ID/btnjian"/> <button Android: Id = "@ + ID/btnchu" Android: TEXT = "except" Android: layout_width = "69dp" Android: layout_height = "wrap_content" Android: layout_below = "@ ID/txtsms" Android: layout_torightof = "@ ID/btncheng"/> <edittext Android: Id = "@ + ID/txtjieguo" Android: layout_width = "fill_parent" Android: layout_height = "40.7dp" Android: gravity = "TOP" Android: hint = "" Android: layout_below = "@ ID/btnchu"/> </relativelayout>
2-3 activity1.cs

Using system; using Android. APP; using Android. content; using Android. runtime; using Android. views; using Android. widget; using Android. OS; namespace databasedemo {[activity (Label = "databasedemo", mainlauncher = true, icon = "@ drawable/icon")] public class activity1: Activity {edittext tvjg; edittext num1; edittext num2; double num = 0; protected override void oncreate (bundle) {base. oncreate (bundle); // set our view from the "Main" layout resource setcontentview (resource. layout. main); // Add button btnadd = findviewbyid <button> (resource. id. btnadd); // subtract button btnjian = findviewbyid <button> (resource. id. btnjian); // by button btncheng = findviewbyid <button> (resource. id. btncheng); // except button btnchu = findviewbyid <button> (resource. id. btnchu); // The first number num1 = findviewbyid <edittext> (resource.id.txt phoneno); // The second number num2 = findviewbyid <edittext> (resource.id.txt SMS ); // result tvjg = findviewbyid <edittext> (resource.id.txt jieguo); webreference. calculator CA = new webreference. calculator (); btnadd. click + = delegate {double num1s = convert. todouble (num1.text. tostring (); double num2s = convert. todouble (num2.text. tostring (); string flag = Ca. add (num1s, num2s, ref num); tvjg. TEXT = num1s. tostring () + "+" + num2s. tostring () + "=" + num. tostring () ;}; btnjian. click + = delegate {double num1s = convert. todouble (num1.text. tostring (); double num2s = convert. todouble (num2.text. tostring (); string flag = Ca. reduce (num1s, num2s, ref num); tvjg. TEXT = num1s. tostring () + "-" + num2s. tostring () + "=" + num. tostring () ;}; btncheng. click + = delegate {double num1s = convert. todouble (num1.text. tostring (); double num2s = convert. todouble (num2.text. tostring (); string flag = Ca. division (num1s, num2s, ref num); tvjg. TEXT = num1s. tostring () + "*" + num2s. tostring () + "=" + num. tostring () ;}; btnchu. click + = delegate {double num1s = convert. todouble (num1.text. tostring (); double num2s = convert. todouble (num2.text. tostring (); string flag = Ca. multiplication (num1s, num2s, ref num); tvjg. TEXT = num1s. tostring () + "/" + num2s. tostring () + "=" + num. tostring ();};}}}

Code, which has been completed!
Source code download