{"id":6902,"date":"2025-06-03T13:37:33","date_gmt":"2025-06-05T06:30:32","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6902"},"modified":"2025-06-05T13:37:33","modified_gmt":"2025-06-05T06:30:32","slug":"https-badgameshow-com-steven-127","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-127\/","title":{"rendered":"Swift \u7167\u7247\u5eab\u64cd\u4f5c\u6307\u5357\uff1a\u4f7f\u7528 PHAsset \u9032\u884c\u7167\u7247\u7ba1\u7406 \ud83d\udcf7"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, PHAsset, iOS, \u7167\u7247\u5eab, \u7167\u7247\u7ba1\u7406\"><\/p>\n<h1>Swift \u7167\u7247\u5eab\u64cd\u4f5c\u6307\u5357\uff1a\u4f7f\u7528 PHAsset \u9032\u884c\u7167\u7247\u7ba1\u7406 \ud83d\udcf7<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u5feb\u901f\u3001\u5b89\u5168\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u958b\u767c iOS\u3001macOS\u3001watchOS \u548c tvOS \u61c9\u7528\u7a0b\u5f0f\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5229\u7528 <strong>PHAsset<\/strong> \u985e\u5225\u4f86\u6709\u6548\u5730\u5b58\u53d6\u548c\u7ba1\u7406\u7167\u7247\u5eab\u4e2d\u7684\u7167\u7247\u3002<\/p>\n<h2>PHAsset \u6982\u8ff0<\/h2>\n<p><strong>PHAsset<\/strong> \u662f\u4e00\u500b\u5c08\u70ba iOS \u7167\u7247\u5eab\u8a2d\u8a08\u7684\u7269\u4ef6\uff0c\u80fd\u5920\u8b93\u958b\u767c\u8005\u8f15\u9b06\u5730\u8b80\u53d6\u3001\u4fee\u6539\u548c\u522a\u9664\u7167\u7247\u3002\u5728\u4f7f\u7528 PHAsset \u4e4b\u524d\uff0c\u9700\u8981\u5148\u5c07\u7167\u7247\u5eab\u4e2d\u7684\u7167\u7247\u8b80\u53d6\u81f3 <strong>PHAsset<\/strong> \u9663\u5217\u4e2d\uff0c\u4ee5\u9032\u884c\u5f8c\u7e8c\u64cd\u4f5c\u3002<\/p>\n<h2>\u8b80\u53d6\u7167\u7247\u5eab\u4e2d\u7684\u7167\u7247<\/h2>\n<p>\u5728\u8b80\u53d6\u7167\u7247\u4e4b\u524d\uff0c\u958b\u767c\u8005\u9700\u8981\u5229\u7528 <strong>PHImageManager<\/strong> \u985e\u5225\uff0c\u4e26\u8a2d\u5b9a <strong>PHImageRequestOptions<\/strong> \u4ee5\u6307\u5b9a\u8b80\u53d6\u7167\u7247\u7684\u53c3\u6578\uff0c\u4f8b\u5982\u5927\u5c0f\u548c\u8cea\u91cf\u3002\u4ee5\u4e0b\u662f\u8b80\u53d6\u7167\u7247\u7684\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let imageManager = PHImageManager.default()\nlet requestOptions = PHImageRequestOptions()\nrequestOptions.isSynchronous = true\n\nlet fetchOptions = PHFetchOptions()\nfetchOptions.sortDescriptors = [NSSortDescriptor(key: \"creationDate\", ascending: false)]\n\nlet fetchResult: PHFetchResult = PHAsset.fetchAssets(with: .image, options: fetchOptions)\n\nif fetchResult.count > 0 {\n    for i in 0..<fetchResult.count {\n        imageManager.requestImage(for: fetchResult.object(at: i) as PHAsset, targetSize: CGSize(width: 200, height: 200), contentMode: .aspectFill, options: requestOptions, resultHandler: { image, _ in\n            \/\/ \u8655\u7406\u8b80\u53d6\u5230\u7684\u7167\u7247\n        })\n    }\n}\n<\/code><\/pre>\n<h2>\u4fee\u6539\u8207\u522a\u9664\u7167\u7247<\/h2>\n<p>\u5728\u8b80\u53d6\u7167\u7247\u5f8c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528 <strong>PHAssetChangeRequest<\/strong> \u985e\u5225\u4f86\u9032\u884c\u7167\u7247\u7684\u4fee\u6539\u548c\u522a\u9664\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let assetChangeRequest = PHAssetChangeRequest.creationRequestForAsset(from: image)\nassetChangeRequest.creationDate = Date()\nassetChangeRequest.location = location\n\nlet assetPlaceholder = assetChangeRequest.placeholderForCreatedAsset\nlet albumChangeRequest = PHAssetCollectionChangeRequest(for: album)\nalbumChangeRequest?.addAssets([assetPlaceholder] as NSArray)\n\ntry PHPhotoLibrary.shared().performChangesAndWait {\n    assetChangeRequest.creationDate = Date()\n    assetChangeRequest.location = location\n}\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5c0d\u7167\u7247\u9032\u884c\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\uff0c\u4e26\u5c07\u4fee\u6539\u5f8c\u7684\u7167\u7247\u5b58\u653e\u5728\u6307\u5b9a\u7684\u76f8\u7c3f\u4e2d\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u4f7f\u7528 PHAsset \u9032\u884c\u7167\u7247\u64cd\u4f5c\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u672a\u7372\u5f97\u4f7f\u7528\u8005\u6388\u6b0a\uff1a<\/strong>\u78ba\u4fdd\u5728 Info.plist \u4e2d\u6dfb\u52a0\u4e86 <code>NSPhotoLibraryUsageDescription<\/code> \u63cf\u8ff0\uff0c\u4e26\u5728\u57f7\u884c\u6642\u8acb\u6c42\u6388\u6b0a\u3002<\/li>\n<li><strong>\u7167\u7247\u7121\u6cd5\u8b80\u53d6\uff1a<\/strong>\u6aa2\u67e5 <code>fetchOptions<\/code> \u7684\u8a2d\u5b9a\uff0c\u78ba\u4fdd\u6c92\u6709\u904e\u6ffe\u6389\u76ee\u6a19\u7167\u7247\u3002<\/li>\n<\/ul>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>PHAsset \u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u7c21\u55ae\u7684\u7167\u7247\u7ba1\u7406\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u5c07\u5176\u8207\u5176\u4ed6 iOS \u529f\u80fd\u7d50\u5408\uff0c\u4f8b\u5982\u5206\u4eab\u7167\u7247\u5230\u793e\u4ea4\u5a92\u9ad4\u6216\u5c07\u5176\u4e0a\u50b3\u81f3\u96f2\u7aef\u670d\u52d9\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u5347\u4f7f\u7528\u8005\u9ad4\u9a57\uff0c\u8b93\u61c9\u7528\u7a0b\u5f0f\u66f4\u5177\u5438\u5f15\u529b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u7167\u7247\u5eab\uff1aPHAsset-\ud83d\udcf7_1675398034.788609.webp\" alt=\"Swift \u7167\u7247\u5eab\uff1aPHAsset \ud83d\udcf7\" title=\"Swift \u7167\u7247\u5eab, PHAsset, iOS \u7167\u7247\u5eab, \u7167\u7247\u64cd\u4f5c, \u7167\u7247\u5eab\u64cd\u4f5c\" width=\"1200\" height=\"628\"\/><\/p>\n<h2>Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>1. \u5982\u4f55\u8655\u7406 PHAsset \u7684\u6b0a\u9650\u554f\u984c\uff1f<\/h3>\n<p>\u5728\u4f7f\u7528 PHAsset \u4e4b\u524d\uff0c\u5fc5\u9808\u5728 Info.plist \u4e2d\u6dfb\u52a0\u9069\u7576\u7684\u6b0a\u9650\u63cf\u8ff0\uff0c\u4e26\u5728\u61c9\u7528\u7a0b\u5f0f\u555f\u52d5\u6642\u8acb\u6c42\u4f7f\u7528\u8005\u6388\u6b0a\u3002<\/p>\n<h3>2. PHAsset \u662f\u5426\u652f\u63f4\u5f71\u7247\u6a94\u6848\uff1f<\/h3>\n<p>\u662f\u7684\uff0cPHAsset \u652f\u63f4\u5b58\u53d6\u7167\u7247\u8207\u5f71\u7247\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u4e0d\u540c\u7684\u5a92\u9ad4\u985e\u578b\u3002<\/p>\n<h3>3. \u5982\u4f55\u512a\u5316\u8b80\u53d6\u7167\u7247\u7684\u6027\u80fd\uff1f<\/h3>\n<p>\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u8abf\u6574 <code>targetSize<\/code> \u548c <code>options<\/code>\uff0c\u4ee5\u4fbf\u52a0\u901f\u7167\u7247\u7684\u8b80\u53d6\u6548\u7387\u3002<\/p>\n<p>```<br \/>\n---<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981(Description):Swift\u7167\u7247\u5eab\uff1aPHAsset\ud83d\udcf7\u662f\u4e00\u500b\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5b58\u53d6iOS\u7167\u7247\u5eab\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u8f15\u9b06\u5730\u64cd\u4f5c\u7167\u7247\u5eab\u4e2d\u7684\u7167\u7247\uff0c\u4e26\u4e14\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u5c0d\u7167\u7247\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n","protected":false},"author":1,"featured_media":6900,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[174,5],"tags":[173,9],"class_list":["post-6902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u7167\u7247\u5eab\uff1aPHAsset-\ud83d\udcf7_1675398034.788609.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1Nk","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=6902"}],"version-history":[{"count":4,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6902\/revisions"}],"predecessor-version":[{"id":13599,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6902\/revisions\/13599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/6900"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}