-你上面的代碼只檢查你的Android設備的連接切換至無線路由或手機的數據分組業務，但不會檢查如果WiFi真的有互聯網連接工作與否。
-我曾經擊中找到這個解決方案時，我工作的一個項目，我試圖尋找它在計算器的解決方案，但我得到的是一段代碼，就像你的。 所以我創建了我自己的解決方案。
我需要的時候做一些定製work..but得到它和運行...
我的代碼切換來自WiFi移動網絡的關閉。
，我使用的端口37 TimeService知道，互聯網是死的，而wifi連接仍然打開
現在我在這裏把一個完整的工作代碼，我做了。請原諒我作爲DRY（不要重複自己的原則）已被濫用在這裏。所以，請在生產網絡
/////---------------------------Intial Available Network Checking
private boolean checkConnection(){
boolean connected = false;
ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm != null) {
NetworkInfo[] netInfo = cm.getAllNetworkInfo();
for (NetworkInfo ni : netInfo) {
if ((ni.getTypeName().equalsIgnoreCase("WIFI")
|| ni.getTypeName().equalsIgnoreCase("MOBILE"))
& ni.isConnected() & ni.isAvailable()) {
connected = true;
}
}
}
return connected;
} /////---------------------------Intial Available Network Checking
/////使用時重構代碼和重複碼轉換成方法，即到single sensible place，--------------- ----------------檢查工作Internet連接
public boolean inetAddr(){
boolean x1 = false;
try {
Socket s = new Socket("utcnist.colorado.edu", 37);
InputStream i = s.getInputStream();
Scanner scan = new Scanner(i);
while(scan.hasNextLine()){
System.out.println(scan.nextLine());
x1 = true;
}
} catch (Exception e) {
x1 = false;
}
return x1;
}
/////-------------------------------Check for the working Internet Connection
////-------------------------------Check Mobile Conectivity Again
public boolean mobileConnect(){
boolean conn = false;
ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNet = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if(activeNet != null){
conn = true;
}else{
conn = false;
}
return conn;
}
////------------------------------Check Mobile Conectivity Again
我在這裏使用上述方法....
try{
if (!checkConnection()){
AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(YumZingSplashActivity.this);
myAlertDialog.setTitle("--- Connectivity Check ---");
myAlertDialog.setMessage("No Internet Connectivity");
myAlertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
YumZingSplashActivity.this.finish();
//splashHandler.removeCallbacks(launcherRunnable);
}});
System.out.println("No Internet Connectivity");
myAlertDialog.show();
}
else{
if(inetAddr()){
aphandle = APIHandling.getInstance();
aphandle.xmlCreateSession();
System.out.println("Net Connectivity is Present");
DURATION = Integer.valueOf(getString(R.string.splash_duration));
splashHandler = new Handler();
// ================ Main Code of the Application
launcherRunnable = new Runnable() {
public void run() {
Intent i = new Intent(YumZingSplashActivity.this, YumZingTabHostActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
YumZingSplashActivity.this.finish();
}
};
if (DEBUG)
{
splashHandler.post(launcherRunnable);
}
else{
splashHandler.postDelayed(launcherRunnable, DURATION);
}
}
else{
if(mobileConnect()){
if(inetAddr()){
aphandle = APIHandling.getInstance();
aphandle.xmlCreateSession();
System.out.println("Net Connectivity is Present");
DURATION = Integer.valueOf(getString(R.string.splash_duration));
splashHandler = new Handler();
// ================ Main Code of the Application
launcherRunnable = new Runnable() {
public void run() {
Intent i = new Intent(YumZingSplashActivity.this, YumZingTabHostActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
YumZingSplashActivity.this.finish();
}
};
if (DEBUG)
{
splashHandler.post(launcherRunnable);
}
else{
splashHandler.postDelayed(launcherRunnable, DURATION);
}
}else{
AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(YumZingSplashActivity.this);
myAlertDialog.setTitle("--- Connectivity Check ---");
myAlertDialog.setMessage("No Internet Connectivity");
myAlertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
YumZingSplashActivity.this.finish();
//splashHandler.removeCallbacks(launcherRunnable);
}});
System.out.println("No Internet Connectivity");
myAlertDialog.show();
}
}else{
AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(YumZingSplashActivity.this);
myAlertDialog.setTitle("--- Connectivity Check ---");
myAlertDialog.setMessage("No Internet Connectivity");
myAlertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
YumZingSplashActivity.this.finish();
//splashHandler.removeCallbacks(launcherRunnable);
}});
System.out.println("No Internet Connectivity");
myAlertDialog.show();
}
}
}
//setContentView(R.layout.yumzing_splash_layout);
} catch(Exception ex){
System.out.println("Leak ko catch");
}
}
我應該在哪裏寫代碼？在廣播接收機？ –
@GauravArora @GauravArora我通常在通過互聯網撥打電話之前使用此代碼，因此您可以在那裏使用它以防止不必要的開銷，或者如果您希望可以在廣播接收器中使用此代碼，但那會稍微重一點..... –
但我的情況下，如果不同的兄弟。我想檢查所有的時間，因爲我的應用程序總是連接到服務器。如果它沒有連接到服務器，那麼我必須彈出一個彈出框 –