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我有一個小問題。我從火力地堡的圖像,我嘗試添加緩存,因爲我用這種方式嘗試,但像這樣的,他們不會被緩存:從firebase和緩存加載圖像swift3
我宣佈這個變量
var uid:String = ""
var partitionUrl:String = ""
var titre:String = ""
而這個鏈接到火力點。
let storageRef = FIRStorage.storage().reference()
let databaseRef = FIRDatabase.database().reference().child("canticles")
該應用程序使用UID拿到冠軍和圖像,並顯示在的UILabel和的UIImageView
@IBOutlet weak var titleCantique: UILabel!
@IBOutlet weak var partitionImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
getPartitionImage()
}
override func viewWillAppear(_ animated: Bool) {
print("partition uid : " + uid)
print("partition URL : " + partitionUrl)
print("partition TITLE : " + titre)
self.titleCantique.text = titre
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func getPartitionImage(){
DispatchQueue.main.async(execute: {
self.storageRef.child(self.partitionUrl).data(withMaxSize: 10*1024*1024, completion: { (data, error) in
if error != nil {
print(error!)
return
}
let image = UIImage(data: data!)
self.partitionImageView.image = image
})
})
}
}
問題是,當未連接手機,圖片沒有顯示。 我可以通過爲圖像添加緩存來解決這個問題,然後它會顯示在離線狀態下?