Android - 跳轉系統網絡設置

全部網絡設置(ACTION_WIRELESS_SETTINGS);
WIFI設置(ACTION_WIFI_SETTINGS);
3G流量設置: (ACTION_DATA_ROAMING_SETTINGS).
發送Intent, 系統接收並跳轉.

整體:
startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
WIFI:
startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));
流量:
startActivity(new Intent(android.provider.Settings.ACTION_DATA_ROAMING_SETTINGS));

注意: 不同的手機有不同的設置頁面, 並不會完全正確, 再不詳細區分時, 全部網絡設置即可.