APNUtil.java

package ucgamesdk.example;

import org.apache.http.HttpHost;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

/**
 * 
 * 网络APN工具类。用于网络状态判断。
 * 
 * @author chenzh
 * 
 */
public class APNUtil {

    /**
     * 获取Http代理host。使用手机2G/3G网络时需要用到。
     * 
     * @param ctx
     * @return
     */
    public static HttpHost getHttpProxy(Context ctx) {
        ConnectivityManager connMgr = (ConnectivityManager) ctx.getSystemService("connectivity");
        NetworkInfo netInfo = connMgr.getActiveNetworkInfo();
        if ((netInfo != null) && (netInfo.isAvailable()) && (netInfo.getType() == 0)) {
            String str = android.net.Proxy.getDefaultHost();
            int i = android.net.Proxy.getDefaultPort();
            if (str != null) {
                return new HttpHost(str, i);
            }
        }
        return null;
    }


    /**
     * 检测是否有网络
     * 
     * @param act
     * @return
     */
    public static boolean isNetworkAvailable(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        if (info != null && info.getState() == NetworkInfo.State.CONNECTED)
            return true;
        return false;
    }

}