在BlueStacks 5模拟器中,ConnectivityManager回调可能不会起作用,因此需要将其重写以确保其正常工作。以下是一个代码示例,说明如何重写ConnectivityCallback类以使用BlueStacks 5中的ConnectivityManager:
import android.content.Context; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkCapabilities; import android.net.NetworkRequest; import android.os.Handler;
public class BlueStacksConnectivityCallback extends ConnectivityManager.NetworkCallback {
private Handler mHandler;
private Context mContext;
public BlueStacksConnectivityCallback(Context context, Handler handler) {
mHandler = handler;
mContext = context;
}
@Override
public void onAvailable(Network network) {
super.onAvailable(network);
// Get current network capabilities
ConnectivityManager cm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkCapabilities nc = cm.getNetworkCapabilities(network);
// Check if network is connected and has Internet access
if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) {
mHandler.post(new Runnable() {
@Override
public void run() {
// Connectivity is available
// Do your work here
}
});
}
}
@Override
public void onLost(Network network) {
super.onLost(network);
mHandler.post(new Runnable() {
@Override
public void run() {
// Connectivity is lost
// Do your work here
}
});
}
}
使用此重写类时,可以将其作为参数传递给ConnectivityManager.registerNetworkCallback()方法。例如:
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkRequest.Builder builder = new NetworkRequest.Builder(); builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); NetworkRequest request = builder.build(); BlueStacksConnectivityCallback callback = new BlueStacksConnectivityCallback(this, mHandler); cm.registerNetworkCallback(request, callback);
这将确保您的ConnectivityManager回调在BlueStacks 5模拟器中正常工作。