以下是一个从互联网加载数据到广播接收器的Android应用程序的示例代码：

1. 首先，在AndroidManifest.xml文件中添加以下权限：

2. 创建一个广播接收器类，用于接收网络状态变化的广播：

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.widget.Toast;

public class NetworkChangeReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting();

        if (isConnected) {
            Toast.makeText(context, "网络已连接", Toast.LENGTH_SHORT).show();
            // 在此处添加从互联网加载数据的逻辑
        } else {
            Toast.makeText(context, "网络已断开", Toast.LENGTH_SHORT).show();
        }
    }
}

3. 在主活动中注册广播接收器：

import android.content.BroadcastReceiver;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    private BroadcastReceiver networkReceiver;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        networkReceiver = new NetworkChangeReceiver();
        IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        registerReceiver(networkReceiver, filter);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(networkReceiver);
    }
}

4. 添加网络请求代码到广播接收器的逻辑中，例如使用Volley库进行网络请求：

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.widget.Toast;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONObject;

public class NetworkChangeReceiver extends BroadcastReceiver {

    private RequestQueue requestQueue;

    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting();

        if (isConnected) {
            Toast.makeText(context, "网络已连接", Toast.LENGTH_SHORT).show();
            loadFromInternet();
        } else {
            Toast.makeText(context, "网络已断开", Toast.LENGTH_SHORT).show();
        }
    }

    private void loadFromInternet() {
        String url = "https://example.com/data.json";

        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,
                new Response.Listener() {
                    @Override
                    public void onResponse(JSONObject response) {
                        // 处理从互联网加载的数据
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        // 处理错误
                    }
                });

        requestQueue.add(request);
    }
}

请注意，这只是一个简单的示例，你可以根据自己的需求进行适当的修改和扩展。