android java 网络检测
16lz
2021-12-04
public class ConnectionDetector {
private Context _context;
public ConnectionDetector(Context context){
this._context = context;
}
public boolean isConnectingToInternet(){
ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null)
{
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
return true;
}
}
return false;
}
}
调用方法:
ConnectionDetector cd = new ConnectionDetector(context);
boolean isInternetPresent = cd.isConnectingToInternet();if (!isInternetPresent)
{
Log.e(TAG, "network false !!!");
return false;
}
else
{
Log.e(TAG, "network is OK !!!");
}
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