前段时间仿QQ做了一个搜索框样式，个人认为还不错，留在这里给大家做个参考，希望能帮助到有需要的人。

首先上截图(图1:项目中的样式，图2:demo样式)：

不多说直接上代码：

Main.axml

MainActivity.cs

using Android.App;using Android.Widget;using Android.OS;using Android.Views;using Android.Runtime;using System;using Android.Views.InputMethods;namespace SearchDemo{    [Activity(Label = "SearchDemo", MainLauncher = true)]    public class MainActivity : Activity, View.IOnKeyListener    {        EditText et_search;         protected override void OnCreate(Bundle savedInstanceState)        {            base.OnCreate(savedInstanceState);            // Set our view from the "main" layout resource            SetContentView(Resource.Layout.Main);            et_search = (EditText)FindViewById(Resource.Id.et_search);            et_search.ImeOptions = Android.Views.InputMethods.ImeAction.Search;     //修改键盘按钮            et_search.SetOnKeyListener(this);        }        public bool OnKey(View v, [GeneratedEnum] Keycode keyCode, KeyEvent e)        {            if (keyCode == Keycode.Enter || keyCode == Keycode.Search)            {                InputMethodManager imm = (InputMethodManager)this.GetSystemService(InputMethodService);                if (imm != null)                {                    imm.HideSoftInputFromWindow(Window.DecorView.WindowToken, 0);       //隐藏键盘                }            }            Toast.MakeText(this, et_search.Text, ToastLength.Short).Show();            return false;        }    }}

search_bcak.xml

到这里就结束了，其实现方法很简单，大多数都写了注释，如果哪里有问题可随时联系我~