public void connectivityManager(){
// 判斷網絡類型
ConnectivityManager connectMgr = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = connectMgr.getActiveNetworkInfo();
if (info == null) {
Toast.makeText(context, "目前無可用網絡",Toast.LENGTH_SHORT).show();
return;
}
// WiFi 連接配接
if (info != null&& info.getType() == ConnectivityManager.TYPE_WIFI) {
}
// 手機信号連接配接
else if (info != null&& info.getType() == ConnectivityManager.TYPE_MOBILE) {
}
}
2.當沒有網絡或者和wifi情況下可以通過
// 跳轉到無線網絡設定界面
startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
// 跳轉到無限wifi網絡設定界面
startActivity(new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS));