最近在做qt安卓开发，需要打开系统设置等功能记录一下。
startActivity(new Intent(Settings.ACTION_DATE_SETTINGS));
等价于 startActivity(new Intent(“android.settings.DATE_SETTINGS”));
下面是系统设置中所有调用的界面API：

//设置总页面
ACTION_SETTINGS = “android.settings.SETTINGS”;
//APN设置页面
ACTION_APN_SETTINGS = “android.settings.APN_SETTINGS”;
//位置信息设置
ACTION_LOCATION_SOURCE_SETTINGS =“android.settings.LOCATION_SOURCE_SETTINGS”;
//无线和网络设置
ACTION_WIRELESS_SETTINGS =“android.settings.WIRELESS_SETTINGS”;
//无线和网络设置
ACTION_AIRPLANE_MODE_SETTINGS =“android.settings.AIRPLANE_MODE_SETTINGS”;
//辅助功能
ACTION_ACCESSIBILITY_SETTINGS =“android.settings.ACCESSIBILITY_SETTINGS”;
//安全设置
ACTION_SECURITY_SETTINGS =“android.settings.SECURITY_SETTINGS”;
//备份与重置
ACTION_PRIVACY_SETTINGS =“android.settings.PRIVACY_SETTINGS”;
//WIFI设置
ACTION_WIFI_SETTINGS =“android.settings.WIFI_SETTINGS”;
//Ip设置
ACTION_WIFI_IP_SETTINGS =“android.settings.WIFI_IP_SETTINGS”;
//蓝牙
ACTION_BLUETOOTH_SETTINGS = “android.settings.BLUETOOTH_SETTINGS”;
//日期时间
ACTION_DATE_SETTINGS =“android.settings.DATE_SETTINGS”;
//声音
ACTION_SOUND_SETTINGS =“android.settings.SOUND_SETTINGS”;
//显示
ACTION_DISPLAY_SETTINGS =“android.settings.DISPLAY_SETTINGS”;
//语言设置
ACTION_LOCALE_SETTINGS =“android.settings.LOCALE_SETTINGS”;
//输入法设置
ACTION_INPUT_METHOD_SETTINGS =“android.settings.INPUT_METHOD_SETTINGS”;
//有效输入法
ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =“android.settings.INPUT_METHOD_SUBTYPE_SETTINGS”;
//个人字典
ACTION_USER_DICTIONARY_SETTINGS =“android.settings.USER_DICTIONARY_SETTINGS”;
//应用
ACTION_APPLICATION_SETTINGS =“android.settings.APPLICATION_SETTINGS”;
//开发者选项
ACTION_APPLICATION_DEVELOPMENT_SETTINGS =“android.settings.APPLICATION_DEVELOPMENT_SETTINGS”;
//快速启动
ACTION_QUICK_LAUNCH_SETTINGS = “android.settings.QUICK_LAUNCH_SETTINGS”;
//已下载应用
ACTION_MANAGE_APPLICATIONS_SETTINGS = “android.settings.MANAGE_APPLICATIONS_SETTINGS”;
//全部应用
ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS = “android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS”;
//
ACTION_APPLICATION_DETAILS_SETTINGS =“android.settings.APPLICATION_DETAILS_SETTINGS”;
//添加账号
ACTION_SYNC_SETTINGS =“android.settings.SYNC_SETTINGS”;
//邮箱账号
ACTION_ADD_ACCOUNT =“android.settings.ADD_ACCOUNT_SETTINGS”;
//网络运营商
ACTION_NETWORK_OPERATOR_SETTINGS = “android.settings.NETWORK_OPERATOR_SETTINGS”;
//移动网络设置
ACTION_DATA_ROAMING_SETTINGS =“android.settings.DATA_ROAMING_SETTINGS”;
//存储设置
ACTION_INTERNAL_STORAGE_SETTINGS = “android.settings.INTERNAL_STORAGE_SETTINGS”;
//存储设置
ACTION_MEMORY_CARD_SETTINGS =“android.settings.MEMORY_CARD_SETTINGS”;
//
ACTION_SEARCH_SETTINGS =“android.search.action.SEARCH_SETTINGS”;
//状态信息
ACTION_DEVICE_INFO_SETTINGS = “android.settings.DEVICE_INFO_SETTINGS”;
//NFC功能
ACTION_NFCSHARING_SETTINGS =“android.settings.NFCSHARING_SETTINGS”;