blocks|key|1934466|text|检查这些链接..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1934467|check+Internet+connection|offset|length|1934468|public+final+boolean+isInternetOn()
{
++ConnectivityManager+connec+=+(ConnectivityManager)
++++getSystemService(Context.CONNECTIVITY_SERVICE);

++//+ARE+WE+CONNECTED+TO+THE+NET
++if+(+connec.getNetworkInfo(0).getState()+==+NetworkInfo.State.CONNECTED+%7C%7C
+++++++connec.getNetworkInfo(1).getState()+==+NetworkInfo.State.CONNECTED+)
++{
++++//+MESSAGE+TO+SCREEN+FOR+TESTING+(IF+REQ)
++++//Toast.makeText(this,+connectionType+%2B+”+connected”,+Toast.LENGTH_SHORT).show();
++++return+true;
++}
++else+if+(+connec.getNetworkInfo(0).getState()+==+NetworkInfo.State.DISCONNECTED
++++%7C%7C++connec.getNetworkInfo(1).getState()+==+NetworkInfo.State.DISCONNECTED++)
++{
++++return+false;
++}

++return+false;
++}|code-block|syntax|javascript|1934469|check+Internet+connection+with+url+if+available|1934470|public+static+boolean+hasActiveInternetConnection(Context+context)+{
++++if+(isNetworkAvailable(context))+{
++++++++try+{
++++++++++++HttpURLConnection+urlc+=+(HttpURLConnection)+(new+URL("http://www.google.com").openConnection());
++++++++++++urlc.setRequestProperty("User-Agent",+"Test");
++++++++++++urlc.setRequestProperty("Connection",+"close");
++++++++++++urlc.setConnectTimeout(1500);+
++++++++++++urlc.connect();
++++++++++++return+(urlc.getResponseCode()+==+200);
++++++++}+catch+(IOException+e)+{
++++++++++++Log.e(LOG_TAG,+"Error+checking+internet+connection",+e);
++++++++}
++++}+else+{
++++++++Log.d(LOG_TAG,+"No+network+available!");
++++}
++++return+false;
}|1934471|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/9861182/android-how-to-check-internet-access-not-just-connectivity-to-wifi|1|https://stackoverflow.com/questions/6493517/detect-if-android-device-has-internet-connection^0|0|0|P|0|0|0|0|1B|1|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]]|A|$]]|$1|M|3|N|5|H|7|18|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

Check these Link..

<a href="https://stackoverflow.com/questions/9861182/android-how-to-check-internet-access-not-just-connectivity-to-wifi">check Internet connection</a>

<pre><code>public final boolean isInternetOn()
{
 ConnectivityManager connec = (ConnectivityManager)
 getSystemService(Context.CONNECTIVITY_SERVICE);

 // ARE WE CONNECTED TO THE NET
 if ( connec.getNetworkInfo(0).getState() == NetworkInfo.State.CONNECTED ||
 connec.getNetworkInfo(1).getState() == NetworkInfo.State.CONNECTED )
 {
 // MESSAGE TO SCREEN FOR TESTING (IF REQ)
 //Toast.makeText(this, connectionType + ” connected”, Toast.LENGTH_SHORT).show();
 return true;
 }
 else if ( connec.getNetworkInfo(0).getState() == NetworkInfo.State.DISCONNECTED
 || connec.getNetworkInfo(1).getState() == NetworkInfo.State.DISCONNECTED )
 {
 return false;
 }

 return false;
 }
</code></pre>

<a href="https://stackoverflow.com/questions/6493517/detect-if-android-device-has-internet-connection">check Internet connection with url if available</a>

<pre><code>public static boolean hasActiveInternetConnection(Context context) {
 if (isNetworkAvailable(context)) {
 try {
 HttpURLConnection urlc = (HttpURLConnection) (new URL("http://www.google.com").openConnection());
 urlc.setRequestProperty("User-Agent", "Test");
 urlc.setRequestProperty("Connection", "close");
 urlc.setConnectTimeout(1500); 
 urlc.connect();
 return (urlc.getResponseCode() == 200);
 } catch (IOException e) {
 Log.e(LOG_TAG, "Error checking internet connection", e);
 }
 } else {
 Log.d(LOG_TAG, "No network available!");
 }
 return false;
}
</code></pre>

blocks|key|1934461|text|没有尝试这些，但您可以尝试将www.google.com和8.8.8.8重定向到127.0.0.1+(您可以使用iptables或修改/system/hosts)。您也可以尝试挖掘AOSP源代码(这些是我在AOSP中找到的唯一isReachable()检查)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1934462|如果您决定查找AOSP，您可以启动here|1934463|附注:+iptables和/system/hosts操作需要root用户。|1934464|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/wifi/WifiNoInternetDialog.java^0|E|E|1V|D|0|H|4|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|I|5|6|7|10|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

Didn't try these but you might try redirecting <code>www.google.com</code> and 8.8.8.8 to 127.0.0.1 (you can use iptables or modify <code>/system/hosts</code>). You can also try digging AOSP source code (these are the only isReachable() checks I found in AOSP).

If you decide to lookup AOSP, you can start <a href="https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/wifi/WifiNoInternetDialog.java" rel="nofollow">here</a>

P.S. You'll need root for iptables and /system/hosts manipulation.

blocks|key|2250218|text|你可以试试这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2250219|要验证网络可用性，请执行以下操作：|2250220|private+Boolean+isNetworkAvailable()+{
++++ConnectivityManager+connectivityManager+
++++++++++=+(ConnectivityManager)+getSystemService(Context.CONNECTIVITY_SERVICE);
++++NetworkInfo+activeNetworkInfo+=+connectivityManager.getActiveNetworkInfo();
++++return+activeNetworkInfo+!=+null+&&+activeNetworkInfo.isConnectedOrConnecting();
}|code-block|syntax|javascript|2250221|要验证互联网访问(连接的wifi是否处于活动状态)，请执行以下操作：|2250222|public+Boolean+isOnline()+{
++++try+{
++++++++Process+p1+=+java.lang.Runtime.getRuntime().exec("ping+-c+1+www.google.com");
++++++++int+returnVal+=+p1.waitFor();
++++++++boolean+reachable+=+(returnVal==0);
++++++++return+reachable;
++++}+catch+(Exception+e)+{
++++++++//+TODO+Auto-generated+catch+block
++++++++e.printStackTrace();
++++}
++++return+false;
}|2250223|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You may try this

To verify network availability:

<pre><code>private Boolean isNetworkAvailable() {
 ConnectivityManager connectivityManager 
 = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
 return activeNetworkInfo != null &amp;&amp; activeNetworkInfo.isConnectedOrConnecting();
}
</code></pre>

To verify internet access(connected wifi is active or not):

<pre><code>public Boolean isOnline() {
 try {
 Process p1 = java.lang.Runtime.getRuntime().exec("ping -c 1 www.google.com");
 int returnVal = p1.waitFor();
 boolean reachable = (returnVal==0);
 return reachable;
 } catch (Exception e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 return false;
}
</code></pre>

I've noticed on Marshmallow (e.g. Nexus 6P) and also on some more recently updated Lollipop phones (e.g. Galaxy S5) that when I connect to a wifi network that has no internet, the network will not fully connect until the user accepts the prompt stating that the network has no internet access.

Is there any way to programmatically get around this check and allow wifi connections to proceed regardless of internet access?

Android, how to override the internet connectivity check when connecting to wifi network?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我注意到在棉花糖(例如Nexus6P)和一些最近更新的棒棒糖手机(例如Galaxy S5)上，当我连接到一个没有互联网的wifi网络时，网络将不会完全连接，直到用户接受网络没有互联网接入的提示。有没有办法通过编程绕过这一检查，并允许wifi连接继续进行，而不考虑互联网接入？

问Android，如何在连接到wifi网络时覆盖互联网连接检查？
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问Android，如何在连接到wifi网络时覆盖互联网连接检查？EN