{"id":98012,"date":"2026-08-30T22:40:46","date_gmt":"2026-08-30T14:40:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/98012.html"},"modified":"2026-08-30T22:40:46","modified_gmt":"2026-08-30T14:40:46","slug":"ui%e5%ad%a6%e4%b9%a0-php%e7%9b%b8%e5%86%8c%e9%80%89%e6%8b%a9%e5%99%a8%e5%ae%9e%e7%8e%b0%e7%9b%b8%e5%86%8c%e5%9b%be%e7%89%87%e5%a4%9a%e9%80%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/98012.html","title":{"rendered":"UI\u5b66\u4e60: PHP\u76f8\u518c\u9009\u62e9\u5668\u5b9e\u73b0\u76f8\u518c\u56fe\u7247\u591a\u9009"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>PHPicker<\/li>\n<li>\n<ul>\n<li>\u914d\u7f6e\u5e76\u521b\u5efa\u76f8\u518c\u9009\u62e9\u5668<\/li>\n<li>\u9009\u62e9\u5b8c\u6210\u56fe\u7247\u4e4b\u540e\u8c03\u7528\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>PHPicker<\/h2>\n<p>\u4e4b\u524d\u7b14\u5b66\u4e60\u4e86\u7528 UIImagePickerController \u6765\u8bbf\u95ee\u8bbe\u5907\u4e0a\u7684\u56fe\u7247, \u4f46\u662fUIImagePickerController \u6709\u4e00\u4e2a\u5f88\u5927\u7684\u5c40\u9650, \u90a3\u5c31\u662f\u4e00\u6b21\u53ea\u80fd\u9009\u62e9\u4e00\u5f20\u56fe\u7247, \u4f46\u662f\u5f88\u591a\u65f6\u5019, \u6211\u4eec\u8bbf\u95ee\u76f8\u518c\u4e4b\u540e\u9700\u8981\u9009\u62e9\u591a\u5f20\u56fe\u7247, \u4e8e\u662f, \u7b14\u8005\u4e86\u89e3\u5230\u4e86\u7528 PHPicker \u6765\u9009\u62e9\u8bbf\u95ee\u76f8\u518c\u53ef\u4ee5\u9009\u62e9\u591a\u5f20\u56fe\u7247.<\/p>\n<p>\u4e0b\u9762\u7b14\u8005\u5c31\u6765\u4ecb\u7ecd\u4e00\u4e0b PHPIcker \u7684\u4f7f\u7528<\/p>\n<p>\u8981\u4f7f\u7528PHPicker\u4e3b\u8981\u5206\u4e3a\u4e09\u6b65, \u5206\u522b\u662f PHPickerConfiguration \u914d\u7f6e, PHPickerViewController \u5c55\u793a\u548c PHPickerResult \u7ed3\u679c\u5904\u7406<\/p>\n<p>\u9996\u5148\u6211\u4eec\u9700\u8981\u5f15\u5165\u6846\u67b6 &lt;PhotosUI\/PhotosUI.h&gt; \u5e76\u9075\u5b88 &lt;PHPickerViewControllerDelegate&gt; \u534f\u8bae, \u914d\u7f6e\u9009\u62e9\u5668\u7684\u6838\u5fc3\u662f PHPickerConfiguration \u5bf9\u8c61<\/p>\n<h3>\u914d\u7f6e\u5e76\u521b\u5efa\u76f8\u518c\u9009\u62e9\u5668<\/h3>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u914d\u7f6e<\/span><br \/>\nPHPickerController<span class=\"token operator\">*<\/span> config <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span>PHPickerConfiguration alloc<span class=\"token punctuation\">]<\/span> init<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8bbe\u7f6e\u7b5b\u9009\u7c7b\u578b: \u56fe\u7247<\/span><br \/>\nconfig<span class=\"token punctuation\">.<\/span>filter <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>PHPickerFilter imagesFilter<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8bbe\u7f6e\u6700\u5927\u9009\u62e9\u6570\u91cf (0 \u8868\u793a\u4e0d\u9650\u5236) <\/span><br \/>\nconfig<span class=\"token punctuation\">.<\/span>selectionLimit <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">9<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u521b\u5efa\u5e76\u5c55\u793a\u9009\u62e9\u5668 <\/span><br \/>\nPHPickerViewController<span class=\"token operator\">*<\/span> picker <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span>PHPickerViewController alloc<span class=\"token punctuation\">]<\/span> initWithConfiguration<span class=\"token punctuation\">:<\/span> config<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8bbe\u7f6e\u4ee3\u7406<\/span><br \/>\npicker<span class=\"token punctuation\">.<\/span>delegate <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">self<\/span><span class=\"token punctuation\">;<\/span>  <\/p>\n<p><span class=\"token comment\">\/\/ \u5f39\u51fa\u76f8\u518c\u9009\u62e9\u7684\u89c6\u56fe<\/span><br \/>\n<span class=\"token punctuation\">[<\/span><span class=\"token keyword\">self<\/span> presentViewController<span class=\"token punctuation\">:<\/span> picker animated<span class=\"token punctuation\">:<\/span> YES complection<span class=\"token punctuation\">:<\/span> nil<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<h3>\u9009\u62e9\u5b8c\u6210\u56fe\u7247\u4e4b\u540e\u8c03\u7528\u65b9\u6cd5<\/h3>\n<p><span class=\"token operator\">&#8211;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span>picker<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">(<\/span>PHPickerViewController <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>picker didFinishPicking<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">(<\/span>NSArray<span class=\"token operator\">&lt;<\/span>PHPickerResult <span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>results <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token punctuation\">[<\/span>picker dismissViewControllerAnimated<span class=\"token punctuation\">:<\/span>YES completion<span class=\"token punctuation\">:<\/span>nil<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>results<span class=\"token punctuation\">.<\/span>count <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">NSLog<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#064;&#034;cancel&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5904\u7406\u9009\u4e2d\u7684\u56fe\u7247<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>PHPickerResult <span class=\"token operator\">*<\/span>result <span class=\"token keyword\">in<\/span> results<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u83b7\u53d6 UIImage<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>result<span class=\"token punctuation\">.<\/span>itemProvider canLoadObjectOfClass<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">[<\/span>UIImage class<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token punctuation\">[<\/span>result<span class=\"token punctuation\">.<\/span>itemProvider loadObjectOfClass<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">[<\/span>UIImage class<span class=\"token punctuation\">]<\/span><br \/>\n                                 completionHandler<span class=\"token punctuation\">:<\/span><span class=\"token operator\">^<\/span><span class=\"token punctuation\">(<\/span>__kindof id<span class=\"token operator\">&lt;<\/span>NSItemProviderReading<span class=\"token operator\">&gt;<\/span>  _Nullable object<span class=\"token punctuation\">,<\/span><br \/>\n                                                     NSError <span class=\"token operator\">*<\/span> _Nullable error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token function\">NSLog<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#064;&#034;\u52a0\u8f7d\u56fe\u7247\u5931\u8d25: %&#064;&#034;<\/span><span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><\/p>\n<p>                UIImage <span class=\"token operator\">*<\/span>image <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>UIImage <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>object<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">[<\/span><span class=\"token keyword\">self<\/span><span class=\"token punctuation\">.<\/span>images addObject<span class=\"token punctuation\">:<\/span> image<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u5728\u4e3b\u7ebf\u7a0b\u66f4\u65b0 UI<\/span><br \/>\n                <span class=\"token function\">dispatch_async<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">dispatch_get_main_queue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">^<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token punctuation\">[<\/span><span class=\"token keyword\">self<\/span> displayImage<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5f53\u7528\u6237\u9009\u62e9\u5b8c\u6210\u56fe\u7247\u4e4b\u540e, \u5c31\u4f1a\u8c03\u7528- (void)picker:(PHPickerViewController *)picker didFinishPicking:(NSArray&lt;PHPickerResult *&gt; *)results \u65b9\u6cd5 , \u8fd9\u4e2a\u65b9\u6cd5\u662f PHPickerViewControllerDelegate \u534f\u8bae\u4e2d\u552f\u4e00\u5fc5\u987b\u5b9e\u73b0\u7684\u6838\u5fc3\u65b9\u6cd5&#xff0c;\u5f53\u7528\u6237\u5728\u7cfb\u7edf\u76f8\u518c\u9009\u62e9\u5668\u4e2d\u5b8c\u6210\u9009\u62e9&#xff08;\u6216\u53d6\u6d88&#xff09;\u65f6\u88ab\u8c03\u7528<\/p>\n<p>\u53c2\u6570\u4e00 : picker: \u89e6\u53d1\u8fd9\u4e2a\u4ee3\u7406\u65b9\u6cd5\u7684 PHPickerViewController \u5b9e\u4f8b\u672c\u8eab<\/p>\n<p>\u5728\u5173\u95ed\u9009\u62e9\u5668\u754c\u9762\u7684\u65f6\u5019, \u9700\u8981\u7528\u5230<\/p>\n<p> <span class=\"token punctuation\">[<\/span>picker dismissViewControllerAnimated<span class=\"token punctuation\">:<\/span>YES completion<span class=\"token punctuation\">:<\/span>nil<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53c2\u6570\u4e8c : results \u7c7b\u578b\u662f\u4e00\u4e2a PHPickerResult \u5bf9\u8c61\u7684\u6570\u7ec4<\/p>\n<p>results\u6709\u4e24\u79cd\u72b6\u6001:<\/p>\n<li>\n<p>\u7528\u6237\u53d6\u6d88\u4e86\u9009\u62e9<\/p>\n<p>results.count &#061;&#061; 0;<\/p>\n<p>results \u662f\u4e00\u4e2a\u7a7a\u6570\u7ec4, \u8fd9\u4e2a\u65f6\u5019\u9700\u8981\u76f4\u63a5\u5173\u95ed\u9009\u62e9\u5668\u5e76\u8fd4\u56de, \u4e0d\u505a\u4efb\u4f55\u56fe\u7247\u5904\u7406<\/p>\n<\/li>\n<li>\n<p>\u7528\u6237\u5b8c\u6210\u4e86\u9009\u62e9<\/p>\n<p>results \u5305\u542b\u4e86\u7528\u6237\u6309\u987a\u5e8f\u9009\u4e2d\u7684\u6240\u6709\u8d44\u6e90\u5bf9\u8c61<\/p>\n<p>\u6570\u7ec4\u4e2d\u6bcf\u4e00\u4e2a\u5143\u7d20\u90fd\u662f\u4e00\u4e2a PHPickerResult \u5b9e\u4f8b, \u4ee3\u8868\u7528\u6237\u70b9\u9009\u7684\u4e00\u4e2a\u56fe\u7247\u6216\u8005\u89c6\u9891<\/p>\n<\/li>\n<p>PHPickerResult \u5185\u90e8\u5e76\u4e0d\u76f4\u63a5\u5305\u542b\u56fe\u7247\u7684 UIImage \u6216 NSData&#xff0c;\u5b83\u66f4\u50cf\u4e00\u4e2a**\u201c\u51ed\u8bc1\u201d\u6216\u201c\u5f15\u7528\u201d**&#xff0c;\u901a\u8fc7\u5176 itemProvider \u5c5e\u6027&#xff08;\u4e00\u4e2a NSItemProvider \u5bf9\u8c61&#xff09;\u6765\u6309\u9700\u52a0\u8f7d\u5b9e\u9645\u6570\u636e\u3002\u8fd9\u6b63\u662f\u7cfb\u7edf\u4e3a\u4e86\u9690\u79c1\u4fdd\u62a4\u800c\u8bbe\u8ba1\u7684\u2014\u2014App \u65e0\u6743\u76f4\u63a5\u8bfb\u53d6\u76f8\u518c&#xff0c;\u53ea\u80fd\u901a\u8fc7\u8fd9\u4e2a\u201c\u51ed\u8bc1\u201d\u53bb\u7533\u8bf7\u52a0\u8f7d\u7528\u6237\u9009\u4e2d\u7684\u90a3\u4e00\u4efd\u6570\u636e\u3002<\/p>\n<p>\u5728\u65b9\u6cd5\u5185\u90e8&#xff0c;\u9700\u8981\u901a\u8fc7 result.itemProvider \u6765\u52a0\u8f7d\u6570\u636e&#xff0c;\u5177\u4f53\u6d41\u7a0b\u662f&#xff1a;<\/p>\n<li>\u68c0\u67e5\u80fd\u529b&#xff1a;\u8c03\u7528 [result.itemProvider canLoadObjectOfClass:[UIImage class]] \u786e\u8ba4\u80fd\u5426\u52a0\u8f7d\u4e3a\u56fe\u7247\u3002<\/li>\n<li>\u5f02\u6b65\u52a0\u8f7d&#xff1a;\u8c03\u7528 loadObjectOfClass:completionHandler: \u65b9\u6cd5\u3002<\/li>\n<ul>\n<li>\u8fd9\u662f\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c&#xff0c;\u7cfb\u7edf\u4f1a\u5728\u540e\u53f0\u7ebf\u7a0b\u89e3\u7801\u56fe\u7247\u6570\u636e\u3002<\/li>\n<li>\u52a0\u8f7d\u6210\u529f\u540e&#xff0c;object \u53c2\u6570\u624d\u662f\u4f60\u771f\u6b63\u9700\u8981\u7684 UIImage \u5bf9\u8c61\u3002<\/li>\n<li>completionHandler \u56de\u8c03\u9ed8\u8ba4\u5728\u540e\u53f0\u7ebf\u7a0b&#xff0c;\u6240\u4ee5\u91cc\u9762\u6240\u6709 UI \u66f4\u65b0\u4ee3\u7801\u5fc5\u987b\u5305\u88f9\u5728 dispatch_async(dispatch_get_main_queue(), ^{&#8230;}); \u4e2d\u3002<\/li>\n<\/ul>\n<p>\u5e38\u7528\u7684\u7c7b\u578b:<\/p>\n<p>[UIImage class] : \u52a0\u8f7d\u5b8c\u4e3a UIImage \u5bf9\u8c61<\/p>\n<p>[NSData class]: \u52a0\u8f7d\u4e3a\u539f\u59cb\u56fe\u7247\/\u89c6\u9891\u6570\u636e<\/p>\n<p>[NSURL class]: \u52a0\u8f7d\u4e3a\u6587\u4ef6URL<\/p>\n<p><span class=\"token operator\">&#8211;<\/span> <span class=\"token punctuation\">(<\/span>NSProgress <span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>loadObjectOfClass<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">(<\/span>Class <span class=\"token operator\">&lt;<\/span>NSItemProviderReading<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">)<\/span>aClass<br \/>\n                completionHandler<span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">^<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>__kindof id<span class=\"token operator\">&lt;<\/span>NSItemProviderReading<span class=\"token operator\">&gt;<\/span> _Nullable object<span class=\"token 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