Context class
Interface to global information about an application environment.
This is an abstract class whose implementation is provided by the Android system. It allows access to application-specific resources and classes, as well as up-calls for application-level operations such as launching activities, broadcasting and receiving intents, etc.
See: https://developer.android.com/reference/android/content/Context
Constructors
- Context()
Properties
- hashCode → int
-
The hash code for this object.
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator.
inherited
Static Properties
-
cacheDir
→ Future<
Directory> -
Returns the absolute path to the application specific cache directory on
the filesystem. [...]
read-only
-
codeCacheDir
→ Future<
Directory> -
Returns the absolute path to the application specific cache directory on
the filesystem designed for storing cached code. [...]
read-only
-
dataDir
→ Future<
Directory> -
Returns the absolute path to the directory on the filesystem where all
private files belonging to this app are stored. [...]
read-only
-
externalCacheDir
→ Future<
Directory> -
Returns absolute path to application-specific directory on the primary
shared/external storage device where the application can place cache files
it owns. These files are internal to the application, and not typically
visible to the user as media. [...]
read-only
-
externalFilesDir
→ Future<
Directory> -
Returns the absolute path to the directory on the primary shared/external
storage device where the application can place persistent files it owns.
These files are internal to the applications, and not typically visible to
the user as media. [...]
read-only
-
filesDir
→ Future<
Directory> -
Returns the absolute path to the directory on the filesystem where files
created with
openFileOutput(String, int)are stored. [...]read-only -
noBackupFilesDir
→ Future<
Directory> -
Returns the absolute path to the directory where files placed under this
directory will be excluded from automatic backup to remote storage. [...]
read-only
-
packageCodePath
→ Future<
File> -
Return the full path to this context's primary Android package. The
Android package is a ZIP file which contains application's primary code
and assets. [...]
read-only
-
packageName
→ Future<
String> -
Return the name of this application's package. [...]
read-only
-
packageResourcePath
→ Future<
File> -
Return the full path to this context's primary Android package. The
Android package is a ZIP file which contains the application's primary
resources. [...]
read-only
Static Methods
-
Retrieves and holds the contents of the preferences file
name, returning a SharedPreferences through which you can retrieve and modify its values. [...] -
getSystemService(
String name) → dynamic - Returns the handle to a system-level service by name. [...]
Constants
- ACCESSIBILITY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#ACCESSIBILITY_SERVICE
"accessibility" - ACCOUNT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#ACCOUNT_SERVICE
"account" - ACTIVITY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#ACTIVITY_SERVICE
"activity" - ALARM_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#ALARM_SERVICE
"alarm" - APP_OPS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#APP_OPS_SERVICE
"appops" - APPWIDGET_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#APPWIDGET_SERVICE
"appwidget" - AUDIO_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#AUDIO_SERVICE
"audio" - BATTERY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#BATTERY_SERVICE
"batterymanager" - BLUETOOTH_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#BLUETOOTH_SERVICE
"bluetooth" - CAMERA_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CAMERA_SERVICE
"camera" - CAPTIONING_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CAPTIONING_SERVICE
"captioning" - CARRIER_CONFIG_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CARRIER_CONFIG_SERVICE
"carrier_config" - CLIPBOARD_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CLIPBOARD_SERVICE
"clipboard" - COMPANION_DEVICE_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#COMPANION_DEVICE_SERVICE
"companiondevice" - CONNECTIVITY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CONNECTIVITY_SERVICE
"connectivity" - CONSUMER_IR_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CONSUMER_IR_SERVICE
"consumer_ir" - CROSS_PROFILE_APPS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#CROSS_PROFILE_APPS_SERVICE
"crossprofileapps" - DEVICE_POLICY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#DEVICE_POLICY_SERVICE
"device_policy" - DISPLAY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#DISPLAY_SERVICE
"display" - DOWNLOAD_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#DOWNLOAD_SERVICE
"download" - DROPBOX_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#DROPBOX_SERVICE
"dropbox" - EUICC_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#EUICC_SERVICE
"euicc" - FINGERPRINT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#FINGERPRINT_SERVICE
"fingerprint" - HARDWARE_PROPERTIES_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#HARDWARE_PROPERTIES_SERVICE
"hardware_properties" - INPUT_METHOD_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#INPUT_METHOD_SERVICE
"input_method" - INPUT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#INPUT_SERVICE
"input" - IPSEC_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#IPSEC_SERVICE
"ipsec" - JOB_SCHEDULER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#JOB_SCHEDULER_SERVICE
"jobscheduler" - KEYGUARD_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#KEYGUARD_SERVICE
"keyguard" - LAUNCHER_APPS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#LAUNCHER_APPS_SERVICE
"launcherapps" - LAYOUT_INFLATER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#LAYOUT_INFLATER_SERVICE
"layout_inflater" - LOCATION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#LOCATION_SERVICE
"location" - MEDIA_PROJECTION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#MEDIA_PROJECTION_SERVICE
"media_projection" - MEDIA_ROUTER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#MEDIA_ROUTER_SERVICE
"media_router" - MEDIA_SESSION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#MEDIA_SESSION_SERVICE
"media_session" - MIDI_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#MIDI_SERVICE
"midi" - NETWORK_STATS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#NETWORK_STATS_SERVICE
"netstats" - NFC_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#NFC_SERVICE
"nfc" - NOTIFICATION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#NOTIFICATION_SERVICE
"notification" - NSD_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#NSD_SERVICE
"servicediscovery" - POWER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#POWER_SERVICE
"power" - PRINT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#PRINT_SERVICE
"print" - RESTRICTIONS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#RESTRICTIONS_SERVICE
"restrictions" - SEARCH_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#SEARCH_SERVICE
"search" - SENSOR_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#SENSOR_SERVICE
"sensor" - SHORTCUT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#SHORTCUT_SERVICE
"shortcut" - STORAGE_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#STORAGE_SERVICE
"storage" - STORAGE_STATS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#STORAGE_STATS_SERVICE
"storagestats" - SYSTEM_HEALTH_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#SYSTEM_HEALTH_SERVICE
"systemhealth" - TELECOM_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TELECOM_SERVICE
"telecom" - TELEPHONY_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TELEPHONY_SERVICE
"phone" - TELEPHONY_SUBSCRIPTION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TELEPHONY_SUBSCRIPTION_SERVICE
"telephony_subscription_service" - TEXT_CLASSIFICATION_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TEXT_CLASSIFICATION_SERVICE
"textclassification" - TEXT_SERVICES_MANAGER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TEXT_SERVICES_MANAGER_SERVICE
"textservices" - TV_INPUT_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#TV_INPUT_SERVICE
"tv_input" - UI_MODE_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#UI_MODE_SERVICE
"uimode" - USAGE_STATS_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#USAGE_STATS_SERVICE
"usagestats" - USB_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#USB_SERVICE
"usb" - USER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#USER_SERVICE
"user" - VIBRATOR_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#VIBRATOR_SERVICE
"vibrator" - WALLPAPER_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WALLPAPER_SERVICE
"wallpaper" - WIFI_AWARE_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WIFI_AWARE_SERVICE
"wifiaware" - WIFI_P2P_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WIFI_P2P_SERVICE
"wifip2p" - WIFI_RTT_RANGING_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WIFI_RTT_RANGING_SERVICE
"wifirtt" - WIFI_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WIFI_SERVICE
"wifi" - WINDOW_SERVICE → const String
-
See: https://developer.android.com/reference/android/content/Context#WINDOW_SERVICE
"window"