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 ==(
Object 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'