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android 強製2G/3G或WIFI 優先上網
android開發中有時候需要設定程序連接網絡優先 2G/3G 或 WIFI，下麵片段代碼給出設置方法：
public void setPreferredNetwork(int networkType) {
ConnectivityManager connMgr = (ConnectivityManager) this.context.getSystemService("connectivity");
if (networkType == NetworkType.TYPE_MOBILE) {//設為2G/3G網絡優先，就算wifi連接到AP，係統仍然通過2G/3G訪問網絡
connMgr.setNetworkPreference(0);
} else if (networkType == NetworkType.TYPE_WIFI) {
connMgr.setNetworkPreference(1);
}
WifiManager wifiMgr = (WifiManager) this.context.getSystemService("wifi");
wifiMgr.disconnect();
}
最後更新：2017-04-04 07:03:36