Several operations on the flight mode in Android

• In Android, how does one determine whether the system is in flight mode:

public static boolean IsAirModeOn(Context context) {return (Settings.System.getInt(context.getContentResolver(),Settings.System.AIRPLANE_MODE_ON, 0) == 1 ? true : false);}

• How to switch flight modes

public static void setAirplaneMode(Context context, boolean enabling) {Settings.System.putInt(context.getContentResolver(),Settings.System.AIRPLANE_MODE_ON, enabling ? 1 : 0);Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);intent.putExtra("state", enabling);context.sendBroadcast(intent);}

• How to register and cancel Automatic flight time

Register

AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);Intent intent = new Intent(AIR_ALERT_ACTION);Parcel out = Parcel.obtain();air.writeToParcel(out, 0);out.setDataPosition(0);intent.putExtra(AIR_RAW_DATA, out.marshall());PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent,PendingIntent.FLAG_CANCEL_CURRENT);am.set(AlarmManager.RTC_WAKEUP, atTimeInMillis, sender);

Cancel

AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);endingIntent sender = PendingIntent.getBroadcast(context, 0,new Intent(action), PendingIntent.FLAG_CANCEL_CURRENT);am.cancel(sender);

• How to control the hardware (cell, Bluetooth, WiFi) for switching flight modes)

  Settings.System.putString(context.getContentResolver(),Settings.System.AIRPLANE_MODE_RADIOS, air_mode_radios);

  Air_mode_radios is a string like this. See Android/provider/settings. Java in Android source code.

  /***         * Whether Airplane Mode is on.         */        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";        /***         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.         */        public static final String RADIO_BLUETOOTH = "bluetooth";        /***         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.         */        public static final String RADIO_WIFI = "wifi";        /***         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.         */        public static final String RADIO_CELL = "cell";        /***         * A comma separated list of radios that need to be disabled when airplane mode         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are         * included in the comma separated list.         */        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";        /***         * A comma separated list of radios that should to be disabled when airplane mode         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi         * will be turned off when entering airplane mode, but the user will be able to reenable         * Wifi in the Settings app.         *         * {@hide}         */        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";

  If air_mode_radios = "cell, Bluetooth, WiFi", this means that the cell, Bluetooth, and Wi-Fi hardware in the switching flight mode is switched to the string. We can set the value of this string, to control whether the three hardware is switching the flight mode.