如何通过Firebase从我的iOS应用程序上传和检索图像?
问题描述:
我想从我的视图控制器中的一个上传图像到Firebase,然后我想将上传的图像加载到另一个视图控制器。此外,我希望这个过程继续为无限用户。我不知道如何做到这一点。如何通过Firebase从我的iOS应用程序上传和检索图像?
答
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你必须上传到火力下面的图像
// Data in memory let data: NSData = ... // Create a reference to the file you want to upload let riversRef = storageRef.child("images/rivers.jpg") // Upload the file to the path "images/rivers.jpg" let uploadTask = riversRef.putData(data, metadata: nil) { metadata, error in if (error != nil) { // Uh-oh, an error occurred! } else { // Metadata contains file metadata such as size, content-type, and download URL. let downloadURL = metadata!.downloadURL } }
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给出后,就可以检索图像如下
// Create a reference to the file you want to download let islandRef = storageRef.child("images/island.jpg") // Download in memory with a maximum allowed size of 1MB (1 * 1024 * 1024 bytes) islandRef.dataWithMaxSize(1 * 1024 * 1024) { (data, error) -> Void in if (error != nil) { // Uh-oh, an error occurred! } else { // Data for "images/island.jpg" is returned // ... let islandImage: UIImage! = UIImage(data: data!) } }
,你也可以找到完整的参考在https://firebase.google.com/docs/storage/ios/
似乎是一个答案在这里:http://*.com/questions/33644560/swift2-retrieving-images-from-firebase – Tushar