Android正在检查互联网连接

我正在制作一个应用程序，其中启动活动获取用户的位置，当它获取位置时，它会将用户重定向到另一个活动。但是当没有可用的internet时，它不能将用户重定向到另一个活动

private boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}

这是我的主要活动代码的一部分：

protected void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(networkReceiver, filter);  //here i have registerd the receiver
// create class object
final GPSTracker gps = new GPSTracker(WelcomeActivity.this);
// check if GPS enabled
if (gps.canGetLocation()) {

    latitude = gps.getLatitude();
    longitude = gps.getLongitude();
    if (latitude != 0.0 && longitude != 0.0) {
        if (Utils.isNetworkAvailable(WelcomeActivity.this)) {
            fetchlocation.setText("Fetching your Location...");
            sendGetAddressRequest(latitude, longitude);
        }
        else
            fetchlocation.setText("No Internet Connectivity");
    } else {
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                latitude = gps.getLatitude();
                longitude = gps.getLongitude();
                if (latitude != 0.0 && longitude != 0.0) {
                    if (Utils.isNetworkAvailable(WelcomeActivity.this)) {
                        fetchlocation.setText("Fetching your Location...");
                        sendGetAddressRequest(latitude, longitude);
                    } else
                        fetchlocation.setText("No Internet Connectivity");
                } else {
                    Toast.makeText(WelcomeActivity.this, "Couldn't detect location", Toast.LENGTH_LONG).show();
                }
            }
        }, 5000);
    }


} else {
   // fetchlocation.setText("Enable Location First");
    gps.showSettingsAlert();
}

}

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getExtras() != null) {
        NetworkInfo ni = (NetworkInfo) intent.getExtras().get(ConnectivityManager.EXTRA_NETWORK_INFO);
        if (ni != null && ni.getState() == NetworkInfo.State.CONNECTED) {
            // we're connected
        }
    }
}

这是在onPause中：

@Override
protected void onPause() {
    unregisterReceiver(networkReceiver); // here i have unregistered the receiver
    super.onPause();
}
public boolean isNetworkConnected() {
    ConnectivityManager cm =
            (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    }
    return false;
}

这是我的网络连接代码：

protected void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(networkReceiver, filter);  //here i have registerd the receiver
// create class object
final GPSTracker gps = new GPSTracker(WelcomeActivity.this);
// check if GPS enabled
if (gps.canGetLocation()) {

    latitude = gps.getLatitude();
    longitude = gps.getLongitude();
    if (latitude != 0.0 && longitude != 0.0) {
        if (Utils.isNetworkAvailable(WelcomeActivity.this)) {
            fetchlocation.setText("Fetching your Location...");
            sendGetAddressRequest(latitude, longitude);
        }
        else
            fetchlocation.setText("No Internet Connectivity");
    } else {
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                latitude = gps.getLatitude();
                longitude = gps.getLongitude();
                if (latitude != 0.0 && longitude != 0.0) {
                    if (Utils.isNetworkAvailable(WelcomeActivity.this)) {
                        fetchlocation.setText("Fetching your Location...");
                        sendGetAddressRequest(latitude, longitude);
                    } else
                        fetchlocation.setText("No Internet Connectivity");
                } else {
                    Toast.makeText(WelcomeActivity.this, "Couldn't detect location", Toast.LENGTH_LONG).show();
                }
            }
        }, 5000);
    }


} else {
   // fetchlocation.setText("Enable Location First");
    gps.showSettingsAlert();
}

}

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getExtras() != null) {
        NetworkInfo ni = (NetworkInfo) intent.getExtras().get(ConnectivityManager.EXTRA_NETWORK_INFO);
        if (ni != null && ni.getState() == NetworkInfo.State.CONNECTED) {
            // we're connected
        }
    }
}

当没有可用的internet时，textview会将文本显示为Np internet Connectivity..当我打开internet时，它仍然显示为no internet Connectivity..我想要的是当internet来临或打开Wifi或网络数据时，textview必须将文本显示为获取您的位置，并将用户重定向到其他活动

private boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}

如果此

布尔值为真，则表示您有网络连接，然后执行如下操作：

if(isNetworkAvailable()){
     // perform your operation here 
}

您还需要：

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

从活动中以这种方式呼叫：

getNetworkType（活动）

获取wifi或sim卡互联网：
getDataType（）方法：
有关更精确的详细信息（2G、3G或4G）。
您必须检查您是否连接到internet，而不仅仅是wifi网络。你可能想试试这个：

try {
        HttpURLConnection urlc = (HttpURLConnection) (new URL("http://google.com").openConnection());
        urlc.setRequestProperty("User-Agent", "Test");
        urlc.setRequestProperty("Connection", "close");
        urlc.setConnectTimeout(1500);
        urlc.connect();

        isConnected = true;

}catch (IOException e) {

        isConnected = false;

}