public static boolean isWIFI() {
ConnectivityManager cm =
(ConnectivityManager)
MyApplication.getInstance().getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
return netInfo.getType() == ConnectivityManager.TYPE_WIFI;
}
private static ConnectivityManager getConnectivityManager() {
if (null == connectivityManager) {
connectivityManager =
(ConnectivityManager)
MyApplication.getInstance().getSystemService(Context.CONNECTIVITY_SERVICE);
}
return connectivityManager;
}
private static void enableHttpResponseCache() {
try {
long httpCacheSize = 10 * 1024 * 1024; // 10 MiB
File httpCacheDir = new File(MyApplication.getInstance().getCacheDir(), "http");
Class.forName("android.net.http.HttpResponseCache")
.getMethod("install", File.class, long.class)
.invoke(null, httpCacheDir, httpCacheSize);
} catch (Exception httpResponseCacheNotAvailable) {
}
}
/**
* get system proxy, or null if no proxy is set.
*
* @return
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Proxy getProxy() {
@SuppressWarnings("deprecation")
String proxyName =
Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1
? Settings.Global.HTTP_PROXY
: Settings.Secure.HTTP_PROXY;
String proxyStr =
Settings.Secure.getString(MyApplication.getInstance().getContentResolver(), proxyName);
if (null == proxyStr) {
return null;
}
String[] proxyStringSplits = proxyStr.split(":");
String proxyAddress = proxyStringSplits[0];
int proxyPort = Integer.parseInt(proxyStringSplits[1]);
return new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyAddress, proxyPort));
}