ANDROID PLUGIN HELP: Lack of Context for use registerReceiver

Hello guys, I'm pretty new on Android/Java plugin for Unity so I'm probably with some very silly question. Sorry about that.

My object is to get battery temperature with the code below. The question is on the comments.

Code (CSharp):

1. package com.yjack.unity;
2. import android.util.Log;
3. import android.content.BroadcastReceiver;
4. import android.content.Context;
5. import android.content.Intent;
6. import android.content.IntentFilter;
7. import android.os.BatteryManager;
8.  
9. public class MyPlugin
10. {
11.     private static final MyPlugin ourInstance = new MyPlugin();
12.     private static final String LOGTAG = "YJack";
13.     public static MyPlugin getInstance() {
14.         return ourInstance;
15.     }
16.     private int temperature;
17.  
18.     private MyPlugin()
19.     {
20.         Log.i(LOGTAG, "Created MyPlugin");
21.         BroadcastReceiver batteryInfoReceiver = new BroadcastReceiver()
22.         {
23.             @Override
24.             public void onReceive(Context context, Intent intent)
25.             {
26.                 updateTemperature(intent);
27.             }
28.         };
29.         loadBatterySection(batteryInfoReceiver);
30.     }
31.  
32.     public int getTemperature()
33.     {
34.         return temperature;
35.     }
36.  
37.     private void loadBatterySection(BroadcastReceiver batteryInfoReceiver)
38.     {
39.         IntentFilter intentFilter = new IntentFilter();
40.         intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
41.         registerReceiver(batteryInfoReceiver, intentFilter); //registerReceiver is a method that I dont have at this class, probably because this class is not a Context. How I solve that?
42.     }
43.  
44.     private void updateTemperature (Intent intent)
45.     {
46.         temperature = intent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE, -1);
47.     }
48. }

 

You can get the "context" in this context () by using Unity's activity.
As activity extends from Context, you can use UnityPlayer.currentActivity variable to register the receiver.

Code (JavaScript):

1. public static Context getCurrentContext()
2. {
3.         Context context = null;
4.         try
5.         {
6.             context = UnityPlayer.currentActivity;
7.         }
8.         catch (Throwable e)
9.         {
10.             Debug.log("Info", "Running on non-unity platform");
11.         }
12.  
13.         return context;
14. }
15.  

It's always good to not access currentActivity like above as you can reuse the same code other than in Unity too. To achieve this, always pass the context from c# and let your class receive the context in constructor.

 

Where we need to write this code. In unity c# script file?????

 

No. This is on Native (Java)