大叔也说Xamarin~Android篇~调用远程API接口，发POST请求

Xamarin我们在上节已经教大家如何去部署它的环境了，今天来说一个实际的例子，使用android客户调用.net web api的一个接口，并发送POST请求，当服务端回到请求后做出响应，客户端android将响应的内容输出，并跳换到别一个Activity页面，在新视图上加载网页内容到webView控件上，整个流程结束！

一 在主页面上添加几个表单元素，账号，密码，登陆按钮，并在Activity类的OnCreate方法中为它们赋值，并添加按钮的click事件

   protected override void OnCreate (Bundle savedInstanceState)    {      base.OnCreate (savedInstanceState);      // Set our view from the "main" layout resource      SetContentView (Resource.Layout.Main);           // Get our button from the layout resource,      // and attach an event to it      Button button = FindViewById<Button> (Resource.Id.myButton);            button.Click += delegate {        button.Text = string.Format ("{0} clicks!", count++);      };      Android.Util.Log.Info ("normal", "日志zzl");      var loginBtn = FindViewById<Button> (Resource.Id.loginBtn);      var username = FindViewById<TextView> (Resource.Id.username);      var password = FindViewById<TextView> (Resource.Id.password);      var result = FindViewById<TextView> (Resource.Id.result);      loginBtn.Click += delegate {        string url = "http://api.xuexiba.com/v1/User/Login";        //创建HttpClient（注意传入HttpClientHandler）        using (var http = new HttpClient ()) {          var content = new FormUrlEncodedContent (new Dictionary<string, string> () {             { "username",username.Text },            { "password",password.Text }                      });          var response = http.PostAsync (url, content);          result.Text = response.Result.Content.ReadAsStringAsync ().Result;         Intent intent = new Intent(this, typeof(ViewPageActivity));         StartActivity(intent);         }      };    }

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原标题：大叔也说Xamarin~Android篇~调用远程API接口，发POST请求

关键词：Android