public void isNetConnected(View view) {
     boolean netConnected = NetUtil.isNetConnected(this);
}

public void isMobileConnected(View view) {
     boolean mobileConnected = NetUtil.isMobileConnected(this);
}

public void is2GConnected(View view) {
     boolean 2GConnecte = NetUtil.is2GConnected(this);
}

public void is3GConnected(View view) {
     boolean 3GConnecte = NetUtil.is3GConnected(this);
}

public void is4GConnected(View view) {
     boolean 4GConnecte = NetUtil.is4GConnected(this);
}

public void getNetworkOperatorName(View view) {
     String getNetworkOperatorName = NetUtil.getNetworkOperatorName(this);
}

public void getPhoneType(View view) {
     String phoneType = NetUtil.getPhoneType(this);
}

public void isWifiConnected(View view) {
     boolean wifiConnected = NetUtil.isWifiConnected(this);
}

public void registerNetConnChangedReceiver(View view) {
      NetUtil.registerNetConnChangedReceiver(this);
}

public void unregisterNetConnChangedReceiver(View view) {
      NetUtil.unregisterNetConnChangedReceiver(this);
}

public void addNetConnChangedListener(View view) {
      NetUtil.addNetConnChangedListener((connectStatus) -> Log.e("##", "connectStatus: " + connectStatus));
}

public void removeNetConnChangedListener(View view) {
      NetUtil.removeNetConnChangedListener(listener));
}