harmony 鸿蒙@ohos.app.ability.wantConstant (wantConstant)

2022-12-22
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@ohos.app.ability.wantConstant (wantConstant)

The wantConstant module provides the actions, entities, and flags used in Want objects.

NOTE

The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import wantConstant from '@ohos.app.ability.wantConstant';

wantConstant.Params

Defines Params (specifying the action that can be performed) in the Want.

System capability: SystemCapability.Ability.AbilityBase

Name	Value	Description
DLP_PARAMS_SANDBOX	ohos.dlp.params.sandbox	Action of obtaining the sandbox flag. System API: This is a system API and cannot be called by third-party applications.
DLP_PARAMS_BUNDLE_NAME	ohos.dlp.params.bundleName	Action of obtaining the DLP bundle name. System API: This is a system API and cannot be called by third-party applications.
DLP_PARAMS_MODULE_NAME	ohos.dlp.params.moduleName	Action of obtaining the DLP module name. System API: This is a system API and cannot be called by third-party applications.
DLP_PARAMS_ABILITY_NAME	ohos.dlp.params.abilityName	Action of obtaining the DLP ability name. System API: This is a system API and cannot be called by third-party applications.
DLP_PARAMS_INDEX	ohos.dlp.params.index	Action of obtaining the DLP index. System API: This is a system API and cannot be called by third-party applications.
ABILITY_BACK_TO_OTHER_MISSION_STACK	ability.params.backToOtherMissionStack	Whether to support redirection back across mission stacks.
ABILITY_RECOVERY_RESTART¹⁰⁺	ohos.ability.params.abilityRecoveryRestart	Action of recovering an ability from a fault and restarting it.
CONTENT_TITLE_KEY¹⁰⁺	ohos.extra.param.key.contentTitle	Action of sharing the content title.
SHARE_ABSTRACT_KEY¹⁰⁺	ohos.extra.param.key.shareAbstract	Action of sharing the abstract.
SHARE_URL_KEY¹⁰⁺	ohos.extra.param.key.shareUrl	Action of sharing the URL.
SUPPORT_CONTINUE_PAGE_STACK_KEY¹⁰⁺	ohos.extra.param.key.supportContinuePageStack	Whether to migrate page stack information during cross-device migration. The default value is true, indicating that page stack information is automatically migrated.
SUPPORT_CONTINUE_SOURCE_EXIT_KEY¹⁰⁺	ohos.extra.param.key.supportContinueSourceExit	Whether to exit the application on the source device during cross-device migration. The default value is true, indicating that the application on the source device automatically exits.

wantConstant.Flags

Enumerates the flags that specify how the Want will be handled.

System capability: SystemCapability.Ability.AbilityBase

Name	Value	Description
FLAG_AUTH_READ_URI_PERMISSION	0x00000001	Indicates the permission to read the URI.
FLAG_AUTH_WRITE_URI_PERMISSION	0x00000002	Indicates the permission to write data to the URI.
FLAG_AUTH_PERSISTABLE_URI_PERMISSION¹⁰⁺	0x00000040	Indicates the permanent permission of the URI. This flag is valid only for PC applications. System API: This is a system API and cannot be called by third-party applications. If this flag is used together with FLAG_AUTH_READ_URI_PERMISSION, the permanent read permission is granted. If this flag is used together with FLAG_AUTH_WRITE_URI_PERMISSION, the permanent write permission is granted. The flag takes effect only when the PERMISSION_PROXY_AUTHORIZATION_URI permission is configured for the application.
FLAG_INSTALL_ON_DEMAND	0x00000800	Indicates that the specific ability will be installed if it has not been installed.