android 网络实时监听网络状态变化 及 网络类型判断
【摘要】
android 中 我们经常需要判断 各种网络类型 然后需要给用户做出相应的提示，一般网络类型有 2g ,3g,4g ,wifi，无网络等等。
1. 网络类型判断
TelephonyManager 中 定义常量值
public static final int NETWORK_TYPE...
android 中 我们经常需要判断 各种网络类型 然后需要给用户做出相应的提示，一般网络类型有 2g ,3g,4g ,wifi，无网络等等。
1. 网络类型判断
TelephonyManager 中 定义常量值
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public static final int NETWORK_TYPE_1xRTT = 7;
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public static final int NETWORK_TYPE_CDMA = 4;
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public static final int NETWORK_TYPE_EDGE = 2;
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public static final int NETWORK_TYPE_EHRPD = 14;
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public static final int NETWORK_TYPE_EVDO_0 = 5;
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public static final int NETWORK_TYPE_EVDO_A = 6;
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public static final int NETWORK_TYPE_EVDO_B = 12;
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public static final int NETWORK_TYPE_GPRS = 1;
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public static final int NETWORK_TYPE_HSDPA = 8;
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public static final int NETWORK_TYPE_HSPA = 10;
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public static final int NETWORK_TYPE_HSPAP = 15;
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public static final int NETWORK_TYPE_HSUPA = 9;
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public static final int NETWORK_TYPE_IDEN = 11;
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public static final int NETWORK_TYPE_LTE = 13;
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public static final int NETWORK_TYPE_UMTS = 3;
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public static final int NETWORK_TYPE_UNKNOWN = 0;
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public static int getNetworkType(Context context) {
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ConnectivityManager connectMgr = (ConnectivityManager) context.getSystemService(
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Context.CONNECTIVITY_SERVICE);
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NetworkInfo info = connectMgr.getActiveNetworkInfo();
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if (info != null) {
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if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
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switch (info.getSubtype()) {
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case TelephonyManager.NETWORK_TYPE_CDMA: // telcom
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case TelephonyManager.NETWORK_TYPE_1xRTT: // telecom
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case TelephonyManager.NETWORK_TYPE_GPRS: // unicom
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case TelephonyManager.NETWORK_TYPE_EDGE: // cmcc
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return NETWORK_TYPE_2G;
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case TelephonyManager.NETWORK_TYPE_EHRPD: // telecom
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case TelephonyManager.NETWORK_TYPE_EVDO_0: // telecom
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case TelephonyManager.NETWORK_TYPE_EVDO_A: // telecom 3.5G
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case TelephonyManager.NETWORK_TYPE_EVDO_B: // telecom 3.5G
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case TelephonyManager.NETWORK_TYPE_HSPA: // unicom
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case TelephonyManager.NETWORK_TYPE_HSPAP: // unicom
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case TelephonyManager.NETWORK_TYPE_HSDPA: // unicom 3.5G
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case TelephonyManager.NETWORK_TYPE_HSUPA: // unicom 3.5G
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case TelephonyManager.NETWORK_TYPE_UMTS: // unicom
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return NETWORK_TYPE_3G;
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case TelephonyManager.NETWORK_TYPE_LTE:
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return NETWORK_TYPE_4G;
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}
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} else if (info.getType() == ConnectivityManager.TYPE_WIFI) {
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return NETWORK_TYPE_WIFI;
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}
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}
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return NETWORK_TYPE_NONE;
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}
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public static final int NETWORK_TYPE_NONE = 0;
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public static final int NETWORK_TYPE_2G = 2;
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public static final int NETWORK_TYPE_3G = 3;
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public static final int NETWORK_TYPE_4G = 4;
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public static final int NETWORK_TYPE_WIFI = 10;
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private String getNetType() {
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int type = getNetworkType(mContext);
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String netType = "";
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switch (type) {
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case Utils.NETWORK_TYPE_NONE:
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netType = "";
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break;
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case Utils.NETWORK_TYPE_2G:
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netType = "2G";
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break;
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case Utils.NETWORK_TYPE_3G:
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netType = "3G";
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break;
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case Utils.NETWORK_TYPE_4G:
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netType = "4G";
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break;
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case Utils.NETWORK_TYPE_WIFI:
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netType = "wifi";
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break;
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}
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return netType;
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}
2.实时监听网络切换
实现监听网络的功能主要依靠 广播监听 。不多说 看代码。回调中逻辑改成自己的就可以了。
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oncreate中 需要注册一下 广播
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mNetworkReceiver = new NetTypeReceiver();
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registerReceiver(mNetworkReceiver, intent);
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ondestory中需要将广播销毁
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if (mNetworkReceiver != null) {
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unregisterReceiver(mNetworkReceiver);
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mNetworkReceiver = null;
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}
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private class NetTypeReceiver extends BroadcastReceiver {
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String type = "";
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {
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ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(
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Context.CONNECTIVITY_SERVICE);
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NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
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if (networkInfo != null && networkInfo.isAvailable()) {
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String name = networkInfo.getTypeName();
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switch (networkInfo.getType()) {
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case 0://移动 网络
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if (TextUtils.isEmpty(type)) {
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type = name;
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}
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break;
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case 1:wifi网络
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if (TextUtils.isEmpty(type)) {
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type = name;
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}
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break;
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}
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} else {// 无网络
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//network was unavailable, stop the streamer, and show a dialog
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showNetworkInvalidView(R.string.network_error_message);
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type = "";
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}
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}
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}
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}
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文章来源: wukong.blog.csdn.net，作者：再见孙悟空_，版权归原作者所有，如需转载，请联系作者。
原文链接：wukong.blog.csdn.net/article/details/50829667
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