GCKUIImageHints 类
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一个对象，可向 GCKUIImagePicker 提供与要选择在界面中显示的图片的类型和大小有关的提示。
- 开始时间
- 3.0
继承 NSObject、<NSCopy> 和 <NSSecureCoding>。
便捷初始化程序。
将自定义数据设置为 nil。
- Parameters
-
| imageType | The image type. |
| imageSize | The image size. |
| - (instancetype) initWithImageType: |
|
(GCKMediaMetadataImageType) |
imageType |
| imageSize: |
|
(CGSize) |
imageSize |
| customData: |
|
(nullable NSObject< NSSecureCoding > *) |
customData |
|
|
| |
指定的初始化程序。
- Parameters
-
| imageType | The image type. |
| imageSize | The image size. |
| customData | The arbitrary custom data that can be used by a custom GCKUIImagePicker to select an image. |
| - (NSObject<NSSecureCoding>*) customData |
|
readnonatomiccopy |
可选的自定义数据，可用于识别图片。
它必须符合键值对编码规范。
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最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003e\u003ccode\u003eGCKUIImageHints\u003c/code\u003e provides hints to \u003ccode\u003eGCKUIImagePicker\u003c/code\u003e about the desired image type and size for UI display.\u003c/p\u003e\n"],["\u003cp\u003eIt includes properties for image type, size, and optional custom data for image identification.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can use provided initializers to create \u003ccode\u003eGCKUIImageHints\u003c/code\u003e instances with desired attributes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ecustomData\u003c/code\u003e property can be leveraged by custom \u003ccode\u003eGCKUIImagePicker\u003c/code\u003e implementations for image selection logic.\u003c/p\u003e\n"],["\u003cp\u003eThis class helps optimize image selection for display within Cast-enabled applications.\u003c/p\u003e\n"]]],["The `GCKUIImageHints` class provides image selection hints to a `GCKUIImagePicker`. Key actions include initializing the object with `-initWithImageType:imageSize:` or `-initWithImageType:imageSize:customData:`, the later being the designated initializer. Information includes `imageType` to specify the type, `imageSize` indicating display dimensions, and optional `customData` for unique image identification, compliant with key-value coding. These properties help determine the suitable image to display in the user interface.\n"],null,["# GCKUIImageHints Class\n\n[Instance Methods](#pub-methods) \\| [Properties](#properties) \nGCKUIImageHints Class Reference \n\nOverview\n--------\n\nAn object that provides hints to a [GCKUIImagePicker](/cast/docs/reference/ios/protocol_g_c_k_u_i_image_picker-p \"An object used for selecting an image for a given purpose from a GCKMediaMetadata object...\") about the type and size of an image to be selected for display in the UI.\n\nSince\n: 3.0\n\nInherits NSObject, \\\u003cNSCopying\\\u003e, and \\\u003cNSSecureCoding\\\u003e.\n\n|----------------|-----------------------------------------------------------------------------------------------------------------------------------------|\n| Instance Method Summary ----------------------- ||\n| (instancetype) | - [initWithImageType:imageSize:](/cast/docs/reference/ios/interface_g_c_k_u_i_image_hints#acede4f0eb0c9659da591448d7dd5f855) |\n| | Convenience initializer. [More...](#acede4f0eb0c9659da591448d7dd5f855) |\n| ||\n| (instancetype) | - [initWithImageType:imageSize:customData:](/cast/docs/reference/ios/interface_g_c_k_u_i_image_hints#a261c4b1b23155b8aa7e4b54faa7349e9) |\n| | Designated initializer. [More...](#a261c4b1b23155b8aa7e4b54faa7349e9) |\n| ||\n\n|------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n| Property Summary ---------------- ||\n| [GCKMediaMetadataImageType](/cast/docs/reference/ios/g_c_k_u_i_image_hints_8h#a31bf487ba9561c0c807a4ee3a42676d8) | [imageType](/cast/docs/reference/ios/interface_g_c_k_u_i_image_hints#a4a31f0af741972a760ae23785452b414) |\n| | The image type. [More...](#a4a31f0af741972a760ae23785452b414) |\n| ||\n| CGSize | [imageSize](/cast/docs/reference/ios/interface_g_c_k_u_i_image_hints#ad21984455c091ed204738b1ec9714c6a) |\n| | The size at which the image will be displayed. [More...](#ad21984455c091ed204738b1ec9714c6a) |\n| ||\n| NSObject\\\u003c NSSecureCoding \\\u003e \\* | [customData](/cast/docs/reference/ios/interface_g_c_k_u_i_image_hints#a27a229a3843e96e1d995d5e20d7580dc) |\n| | Optional custom data that can be used to identify the image. [More...](#a27a229a3843e96e1d995d5e20d7580dc) |\n| ||\n\nMethod Detail\n-------------\n\n|-------------------------------------|---|--------------------------------------------------------------------------------------------------------------------|-------------|\n| - (instancetype) initWithImageType: | | ([GCKMediaMetadataImageType](/cast/docs/reference/ios/g_c_k_u_i_image_hints_8h#a31bf487ba9561c0c807a4ee3a42676d8)) | *imageType* |\n| imageSize: | | (CGSize) | *imageSize* |\n| | | | |\n\nConvenience initializer.\n\nSets the custom data to `nil`.\n\nParameters\n:\n\n |-----------|-----------------|\n | imageType | The image type. |\n | imageSize | The image size. |\n\n\n|-------------------------------------|---|--------------------------------------------------------------------------------------------------------------------|--------------|\n| - (instancetype) initWithImageType: | | ([GCKMediaMetadataImageType](/cast/docs/reference/ios/g_c_k_u_i_image_hints_8h#a31bf487ba9561c0c807a4ee3a42676d8)) | *imageType* |\n| imageSize: | | (CGSize) | *imageSize* |\n| customData: | | (nullable NSObject\\\u003c NSSecureCoding \\\u003e \\*) | *customData* |\n| | | | |\n\nDesignated initializer.\n\nParameters\n:\n\n |------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | imageType | The image type. |\n | imageSize | The image size. |\n | customData | The arbitrary custom data that can be used by a custom [GCKUIImagePicker](/cast/docs/reference/ios/protocol_g_c_k_u_i_image_picker-p \"An object used for selecting an image for a given purpose from a GCKMediaMetadata object...\") to select an image. |\n\n\nProperty Detail\n---------------\n\n|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------|\n| |--------------------------------------------------------------------------------------------------------------------------------| | - ([GCKMediaMetadataImageType](/cast/docs/reference/ios/g_c_k_u_i_image_hints_8h#a31bf487ba9561c0c807a4ee3a42676d8)) imageType | | readnonatomicassign |\n\nThe image type. \n\n|---------------------------------------------------|---------------------|\n| |----------------------| | - (CGSize) imageSize | | readnonatomicassign |\n\nThe size at which the image will be displayed. \n\n|-------------------------------------------------------------------------------------------------|-------------------|\n| |---------------------------------------------| | - (NSObject\\\u003cNSSecureCoding\\\u003e\\*) customData | | readnonatomiccopy |\n\nOptional custom data that can be used to identify the image.\n\nIt must be key-value coding compliant."]]
