| callback | AsyncCallback\<boolean> | Yes| Callback used to return the result. <br>Returns **true** if the main window of this ability has the focus; returns **false** otherwise.|
| callback | AsyncCallback\<boolean> | Yes | Callback used to return the result.<br>Returns **true** if the main window of this ability has the focus; returns **false** otherwise.|
**Example**
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@@ -322,7 +327,7 @@ Checks whether the main window of this ability has the focus. This method uses a
| deviceId | Read-only| string | Yes| Information about the ability to migrate.|
| reversible | Read-only| boolean | Yes| Whether migration back is supported. Currently, this feature is not supported. This parameter is reserved and can be set to **false**.|
| resultCode | Read-only| number | Yes| Result code returned after the ability is destroyed. The feature for defining error-specific result codes is coming soon.|
| want | Read-only| [Want](#want) | No| Data returned after the ability is destroyed. You can define the data to be returned. This parameter can be **null**.|
| resultCode | Read-only | number | Yes | Result code returned after the ability is destroyed. The feature for defining error-specific result codes is coming soon.<br>|
| want | Read-only | [Want](#want) | No | Data returned after the ability is destroyed. You can define the data to be returned. This parameter can be **null**.<br>|
| want | Read-only| [Want](#want) | Yes| Information about the ability to start.|
| abilityStartSetting | Read-only| {[key: string]: any} | No| Special attribute of the ability to start. This attribute can be passed in the method call.|
| want | Read-only | [Want](#want) | Yes | Information about the ability to start.<br>|
| abilityStartSetting | Read-only | {[key: string]: any} | No | Special attribute of the ability to start. This attribute can be passed in the method call.<br>|
| deviceId | Read-only| string | No| ID of the device that runs the ability.|
| bundleName | Read-only| string | No| Bundle name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
| abilityName | Read-only| string | No| Name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
| uri | Read-only| string | No| URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.|
| type | Read-only| string | No| MIME type, for example, text/plain or image/*.|
| flags | Read-only| number | No| How the **Want** object will be handled. By default, a number is passed. For details, see [flags](#flags).|
| parameters | Read-only| {[key: string]: any} | No| List of parameters in a **Want** object.|
| entities | Read-only| Array\<string> | No| List of entities.|
| deviceId | Read-only | string | No | ID of the device that runs the ability.<br>|
| bundleName | Read-only | string | No | Bundle name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.<br>|
| abilityName | Read-only | string | No | Name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.<br>|
| uri | Read-only | string | No | URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.<br>|
| type | Read-only | string | No | MIME type, for example, text/plain or image/*.<br>|
| flags | Read-only | number | No | How the **Want** object will be handled. By default, a number is passed. For details, see [flags](#flags).<br>|
| FLAG_AUTH_READ_URI_PERMISSION | 0x00000001 | Indicates the permission to read the URI.|
| FLAG_AUTH_WRITE_URI_PERMISSION | 0x00000002 | Indicates the permission to write the URI.|
| FLAG_ABILITY_FORWARD_RESULT | 0x00000004 | Returns the result to the ability.|
| FLAG_ABILITY_CONTINUATION | 0x00000008 | Indicates whether the ability on the local device can be migrated to a remote device.|
| FLAG_NOT_OHOS_COMPONENT | 0x00000010 | Indicates that a component does not belong to OHOS.|
| FLAG_ABILITY_FORM_ENABLED | 0x00000020 | Indicates whether to enable an ability.|
| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent.|
| FLAG_AUTH_PREFIX_URI_PERMISSION | 0x00000080 | Indicates the permission to verify URIs by prefix matching.|
| FLAG_ABILITYSLICE_MULTI_DEVICE | 0x00000100 | Supports cross-device startup in a distributed scheduler.|
| FLAG_START_FOREGROUND_ABILITY | 0x00000200 | Indicates that the Service ability is started regardless of whether the host application has been started.|
| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that the migration is reversible.|
| FLAG_INSTALL_ON_DEMAND | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed.|
| FLAG_INSTALL_WITH_BACKGROUND_MODE | 0x80000000 | Indicates that the specific ability will be installed in the background if it has not been installed.|
| FLAG_ABILITY_CLEAR_MISSION | 0x00008000 | Clears other operation missions. This flag can be set for the **Want** object passed to **ohos.app.Context#startAbility** and must be used together with **flag_ABILITY_NEW_MISSION**.|
| FLAG_ABILITY_NEW_MISSION | 0x10000000 | Creates a mission on the historical mission stack.|
| FLAG_ABILITY_MISSION_TOP | 0x20000000 | Starts the mission on the top of the existing mission stack; creates an ability instance if no mission exists.|
| FLAG_AUTH_READ_URI_PERMISSION | 0x00000001 | Indicates the permission to read the URI.<br>|
| FLAG_AUTH_WRITE_URI_PERMISSION | 0x00000002 | Indicates the permission to write the URI.<br>|
| FLAG_ABILITY_FORWARD_RESULT | 0x00000004 | Returns the result to the ability.<br>|
| FLAG_ABILITY_CONTINUATION | 0x00000008 | Indicates whether the ability on the local device can be migrated to a remote device.<br>|
| FLAG_NOT_OHOS_COMPONENT | 0x00000010 | Indicates that a component does not belong to OHOS.<br>|
| FLAG_ABILITY_FORM_ENABLED | 0x00000020 | Indicates whether to enable an ability.<br>|
| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent.<br>|
| FLAG_AUTH_PREFIX_URI_PERMISSION | 0x00000080 | Indicates the permission to verify URIs by prefix matching.<br>|
| FLAG_ABILITYSLICE_MULTI_DEVICE | 0x00000100 | Supports cross-device startup in a distributed scheduler.<br>|
| FLAG_START_FOREGROUND_ABILITY | 0x00000200 | Indicates that the Service ability is started regardless of whether the host application has been started.<br>|
| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that the migration is reversible.<br>|
| FLAG_INSTALL_ON_DEMAND | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed.<br>|
| FLAG_INSTALL_WITH_BACKGROUND_MODE | 0x80000000 | Indicates that the specific ability will be installed in the background if it has not been installed.<br>|
| FLAG_ABILITY_CLEAR_MISSION | 0x00008000 | Clears other operation missions. This flag can be set for the **Want** object passed to **ohos.app.Context#startAbility** and must be used together with **flag_ABILITY_NEW_MISSION**.<br>|
| FLAG_ABILITY_NEW_MISSION | 0x10000000 | Creates a mission on the historical mission stack.<br>|
| FLAG_ABILITY_MISSION_TOP | 0x20000000 | Starts the mission on the top of the existing mission stack; creates an ability instance if no mission exists.<br>|
