Xamarin Android使用小米推送

最近项目要用到小米推送，但是网上关于Xamarin 小米推送的资料真的是少之又少，可以说是没有，非常之蛋疼。在经过本人研究成功推送之后，我觉得要把经验资料分享出来！！！ps：如果是原生Android开发使用小米推送真的是非常方便，SDK Demo下载下来嵌入改一下包名之类的差不多就搞定了，Xamarin开发的话还要改成C#，算了，废话不多说。

1.下载小米推送客户端SDK。

下载网址：http://dev.xiaomi.com/mipush/downpage/

SDK包里有Eclipse和Android Studio的Demo以及MiPush_SDK_Client_3_1_2.jar。Demo只需要简单地改一些参数（类如包名、AppID、AppKey）就可以直接用了，Android原生开发就可以直接使用了，但是是没有Xamarin C#版本的。

2.新建一个Xamarin.Android项目，Bindings Library(Android)。

1 这个是用来制作小米推送SDK，将Jar包转成vs可以引用的.dll

2 将小米推送SDK的jar包加进项目中的jars包下

3 将jar包属性改为EmbeddedJar

4 项目生成，即可获得我们需要的.dll，在项目对应下的mipush\bin\Debug文件夹中。

3.新建一个Android项目。

1 新建一个Android项目，过程省略；

2 添加对mipush.dll的引用；

4.配置AndroidManifest.xml

1.小米推送服务SDK支持的最低安卓版本为2.2。

<uses-sdk android:minSdkVersion="8" />

2.推送服务需要的权限列表

<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /><uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /><uses-permission android:name="android.permission.READ_PHONE_STATE" /><uses-permission android:name="android.permission.GET_TASKS" /><!-- the following 2 com.xiaomi.mipushdemo should be changed to your package name --><permission android:name="com.Gary.mipushDemo.permission.MIPUSH_RECEIVE" android:protectionLevel="signature" /><uses-permission android:name="com.Gary.mipushDemo.permission.MIPUSH_RECEIVE" /><uses-permission android:name="android.permission.VIBRATE" />

3.推送服务需要配置的service和receiver

<service android:name="com.xiaomi.push.service.XMJobService" android:enabled="true" android:exported="false" android:permission="android.permission.BIND_JOB_SERVICE" android:process=":pushservice" /><service android:name="com.xiaomi.push.service.XMPushService" android:enabled="true" android:process=":pushservice" /><service android:name="com.xiaomi.mipush.sdk.PushMessageHandler" android:enabled="true" android:exported="true" /><service android:name="com.xiaomi.mipush.sdk.MessageHandleService" android:enabled="true" /><receiver android:name="com.gary.mipushdemo.DemoMessageReceiver" android:exported="true"><intent-filter><action android:name="com.xiaomi.mipush.RECEIVE_MESSAGE" /></intent-filter><intent-filter><action android:name="com.xiaomi.mipush.MESSAGE_ARRIVED" /></intent-filter><intent-filter><action android:name="com.xiaomi.mipush.ERROR" /></intent-filter></receiver><receiver android:name="com.xiaomi.push.service.receivers.NetworkStatusReceiver" android:exported="true"><intent-filter><action android:name="android.net.conn.CONNECTIVITY_CHANGE" /><category android:name="android.intent.category.DEFAULT" /></intent-filter></receiver><receiver android:name="com.xiaomi.push.service.receivers.PingReceiver" android:exported="false" android:process=":pushservice"><intent-filter><action android:name="com.xiaomi.push.PING_TIMER" /></intent-filter></receiver>

4.自定义BroadCastReceiver类

创建一个类并继承PushMessageReceiver类，并重写父类的onCommandResult和onReceiveMessage方法，然后把该receiver注册到AndroidManifest.xml文件中。
a)onCommandResult服务端接收客户端请求后返回的响应消息
b)onReceiveMessage用来接收服务器向客户端发送的即时消息

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Com.Xiaomi.Mipush.Sdk;
using Java.Text;
using Android.Util;
using Android.Text;namespace Gary.mipushDemo
{public class DemoMessageReceiver : PushMessageReceiver{private string mRegId;private string mTopic;private string mAlias;private string mAccount;private string mStartTime;private string mEndTime;public override void OnReceivePassThroughMessage(Context context, MiPushMessage message){if (!TextUtils.IsEmpty(message.Topic)){mTopic = message.Topic;}else if (!TextUtils.IsEmpty(message.Alias)){mAlias = message.Alias;}}public override void OnNotificationMessageClicked(Context context, MiPushMessage message){if (!TextUtils.IsEmpty(message.Topic)){mTopic = message.Topic;}else if (!TextUtils.IsEmpty(message.Alias)){mAlias = message.Alias;}}public override void OnNotificationMessageArrived(Context context, MiPushMessage message){if (!TextUtils.IsEmpty(message.Topic)){mTopic = message.Topic;}else if (!TextUtils.IsEmpty(message.Alias)){mAlias = message.Alias;}}// 用来接收客户端向服务器发送命令消息后返回的响应public override void OnCommandResult(Context context, MiPushCommandMessage message){string command = message.Command;IList<string> arguments = message.CommandArguments;string cmdArg1 = ((arguments != null && arguments.Count() > 0) ? arguments[0] : null);string cmdArg2 = ((arguments != null && arguments.Count() > 1) ? arguments[1] : null);string log;if (MiPushClient.CommandRegister.Equals(command)){if (message.ResultCode == ErrorCode.Success){mRegId = cmdArg1;}else{}}else if (MiPushClient.CommandSetAlias.Equals(command)){if (message.ResultCode == ErrorCode.Success){mAlias = cmdArg1;}else{}}else if (MiPushClient.CommandUnsetAlias.Equals(command)){if (message.ResultCode == ErrorCode.Success){mAlias = cmdArg1;}else{}}else if (MiPushClient.CommandSetAccount.Equals(command)){if (message.ResultCode == ErrorCode.Success){mAccount = cmdArg1;}else{}}else if (MiPushClient.CommandUnsetAccount.Equals(command)){if (message.ResultCode == ErrorCode.Success){mAccount = cmdArg1;}else{}}else if (MiPushClient.CommandSubscribeTopic.Equals(command)){if (message.ResultCode == ErrorCode.Success){mTopic = cmdArg1;}else{}}else if (MiPushClient.CommandUnsubscribeTopic.Equals(command)){if (message.ResultCode == ErrorCode.Success){mTopic = cmdArg1;}else{}}else if (MiPushClient.CommandSetAcceptTime.Equals(command)){if (message.ResultCode == ErrorCode.Success){mStartTime = cmdArg1;mEndTime = cmdArg2;}else{}}else{log = message.Reason;}}public override void OnReceiveRegisterResult(Context context, MiPushCommandMessage message){string command = message.Command;IList<string> arguments = message.CommandArguments;string cmdArg1 = ((arguments != null && arguments.Count() > 0) ? arguments[0] : null);string log;if (MiPushClient.CommandRegister.Equals(command)){if (message.ResultCode == ErrorCode.Success){mRegId = cmdArg1;}else{}}else{log = message.Reason;}}}
}

5.将自定义的BroadcastReceiver注册到AndroidManifest.xml文件中

<receiver android:name="com.gary.mipushdemo.DemoMessageReceiver" android:exported="true"><intent-filter><action android:name="com.xiaomi.mipush.RECEIVE_MESSAGE" /></intent-filter><intent-filter><action android:name="com.xiaomi.mipush.MESSAGE_ARRIVED" /></intent-filter><intent-filter><action android:name="com.xiaomi.mipush.ERROR" /></intent-filter></receiver>

6.推送服务初始化
通过调用MiPushClient.registerPush来初始化小米推送服务。笔者建议在应用的Application类的onCreate()方法内进行注册，这样注册成功后只要应用进程不被结束，那么推送服务就是一直可用的。不建议在某一个Activity中进行注册，因为随着Activity生命周期的结束，推送服务很可能会失效。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Com.Xiaomi.Mipush.Sdk;
using Android.Text;
using static Android.App.ActivityManager;
using Com.Xiaomi.Channel.Commonutils.Logger;
using Android.Util;
using Java.Lang;namespace Gary.mipushDemo
{public class DemoApplication : Application{// user your appid the key.private static string APP_ID = "2882303761517520746";// user your appid the key.private static string APP_KEY = "5731752028746";// 此TAG在adb logcat中检索自己所需要的信息， 只需在命令行终端输入 adb logcat | grep// com.xiaomi.mipushdemopublic static string TAG = "com.Gary.mipushDemo";private static DemoHandler sHandler = null;public override void OnCreate(){base.OnCreate();// 注册push服务，注册成功后会向DemoMessageReceiver发送广播// 可以从DemoMessageReceiver的onCommandResult方法中MiPushCommandMessage对象参数中获取注册信息if (shouldInit()){MiPushClient.RegisterPush(this, APP_ID, APP_KEY);}if (sHandler == null){sHandler = new DemoHandler(this);}}private bool shouldInit(){ActivityManager am = ((ActivityManager)GetSystemService(ActivityService));IList<RunningAppProcessInfo> processInfos = am.RunningAppProcesses;string mainProcessName = PackageName;int myPid = Android.OS.Process.MyPid();foreach (RunningAppProcessInfo info in processInfos){if (info.Pid == myPid && mainProcessName.Equals(info.ProcessName)){return true;}}return false;}public static DemoHandler getHandler(){return sHandler;}public class DemoHandler : Handler{private Context context;public DemoHandler(Context context){this.context = context;}public override void HandleMessage(Message msg){string s = (string)msg.Obj;if (!TextUtils.IsEmpty(s)){Toast.MakeText(context, s, ToastLength.Long).Show();}}}}
}

5.测试截图

1.登录上小米开发者站（需要注册小米账号并且申请开发者）；

2.发送推送；

3.手机接收到推送。（小米推送在MIUI的小米手机上有比较好的体验，APP退出后仍然可以接收到推送，其他牌子手机可能就接收不到）

有不懂的同学可以讨论一下，希望大家都能在Xamarin用上小米推送。