网络连接的判断及网络类型的判断

来源：互联网发布：java游戏服务器端编辑：程序博客网时间：2024/06/11 01:21

直接调用以下方法即可

//这是一个方法    public void checkMobileNet() {        // 1.得到系统服务ConnectivityManager        ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);        // 2.得到网络信息类对象        NetworkInfo networkInfo = manager.getActiveNetworkInfo();        // 3.进行判断        if (networkInfo != null && networkInfo.isConnected()) {            Toast.makeText(this, "已连接互联网!", 0).show();            // 检测手机的网络类型            int type = networkInfo.getType();// 得到网络类型            switch (type) {                case ConnectivityManager.TYPE_WIFI:// wifi网络                    Toast.makeText(this, "wifi!", 0).show();                    break;                case ConnectivityManager.TYPE_MOBILE:// 移动数据                    Toast.makeText(this, "移动数据!", 0).show();                    // 2g 3g 4g                    getDetailMobileNetType(networkInfo);                    break;            }        } else {            Toast.makeText(this, "未连接互联网!", 0).show();            AlertDialog.Builder buider=new AlertDialog.Builder(this);            buider.setTitle("网络连接设置");            buider.setMessage("未连接网络，是否要进行设置？");            buider.setPositiveButton("设置", new DialogInterface.OnClickListener() {                @Override                public void onClick(DialogInterface arg0, int arg1) {                    //跳转到系统设置网络的界面                    Intent intent=new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);                    startActivity(intent);                }            });            buider.setNegativeButton("取消",  new DialogInterface.OnClickListener() {                @Override                public void onClick(DialogInterface arg0, int arg1) {}            });            buider.create().show();        }    }//得到详细的网络类型 wap 2G/3G/4G网络**    public void getDetailMobileNetType(NetworkInfo netInfo) {        String strNetworkType = "";        // 得到整数类型        int subtype = netInfo.getSubtype();        // 得到名子        String _strSubTypeName = netInfo.getSubtypeName();        switch (subtype) {            case TelephonyManager.NETWORK_TYPE_GPRS:// 联通2G            case TelephonyManager.NETWORK_TYPE_EDGE:// 移动2G            case TelephonyManager.NETWORK_TYPE_CDMA:// 电信2G            case TelephonyManager.NETWORK_TYPE_1xRTT:            case TelephonyManager.NETWORK_TYPE_IDEN: // api<8 : replace by 11                strNetworkType = "2G";                break;            case TelephonyManager.NETWORK_TYPE_UMTS:            case TelephonyManager.NETWORK_TYPE_EVDO_0:            case TelephonyManager.NETWORK_TYPE_EVDO_A:            case TelephonyManager.NETWORK_TYPE_HSDPA:            case TelephonyManager.NETWORK_TYPE_HSUPA:            case TelephonyManager.NETWORK_TYPE_HSPA:            case TelephonyManager.NETWORK_TYPE_EVDO_B: // api<9 : replace by 14            case TelephonyManager.NETWORK_TYPE_EHRPD: // api<11 : replace by 12            case TelephonyManager.NETWORK_TYPE_HSPAP: // api<13 : replace by 15                strNetworkType = "3G";                break;            case TelephonyManager.NETWORK_TYPE_LTE: // api<11 : replace by 13                strNetworkType = "4G";                break;            default:                // http://baike.baidu.com/item/TD-SCDMA 中国移动 联通 电信 三种3G制式                if (_strSubTypeName.equalsIgnoreCase("TD-SCDMA")                        || _strSubTypeName.equalsIgnoreCase("WCDMA")                        || _strSubTypeName.equalsIgnoreCase("CDMA2000")) {                    strNetworkType = "3G";                } else {                    strNetworkType = _strSubTypeName;                }                break;        }        Log.d("zzz", "网络类型是：" + strNetworkType);    }

创建一个类将代码赋值进去import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.provider.Settings;public class WangLuo {    public static boolean isWL(Context context) {        ConnectivityManager manager = (ConnectivityManager)                context.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo info = manager.getActiveNetworkInfo();        return (info != null && info.isAvailable());    }    public static void TanKuang(final Context context) {        AlertDialog.Builder builder = new AlertDialog.Builder(context);        builder.setMessage("网络链接中断,是否设置链接网络");        builder.setNegativeButton("取消", null);        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {//                    两种跳转都可以跳转到到设置网络//                Intent intent = new Intent(Settings.ACTION_WIRELESS_SETTINGS);                Intent intent = new Intent(Settings.ACTION_WIFI_SETTINGS);//                    intent.setAction("android.settings.WIRELESS_SETTINGS");                context.startActivity(intent);            }        });        builder.create().show();    }}///////////////////////////////////////////////在主方法中将下列代码复制上即可 //调用方法判断是否是联网状态        boolean wl = WangLuo.isWL(this);        //判断是否联网如果没有跳转到网络连接界面连接网络        if (!wl){            WangLuo.TanKuang(this);        }

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