我試圖從Firebase存盤中下載一個URL，并將其保存到AVAudioPlayer中
。func loadAudio(post: CompPost, completion: @escaping (AVAudioPlayer) ->（）)
{
let audioRef = Storage.storage（）。 reference().child("cPosts").child(post.uid).child("Audio").child(post.mp3)
audioRef.downloadURL
{ (url, error) in.
print("mp3filename: " post.mp3)
guard error == nil else
{
print(error！.localizedDescription)
return /**alert**/ }
let audioURL = url
print("url:" audioURL！.absoluteString)
do.
{
try self.audioPlayer = AVAudioPlayer( contentsOf: audioURL! )
完成(self.audioPlayer)
print("this HAS LOADED")
}
catch("this has LOADED")
{
print("COULD NOT ASSIGN URL") /**alert **/
//ERROR here that keeps on happening :()
}
}
}
我知道這是一個正確的存盤檔案，而且因為我的列印陳述句的檢查，沒有錯誤得到的url，然而，由于某種原因，有一個問題，設定這個URL到我的AVAudioPlayer的內容，audioPlayer
uj5u.com熱心網友回復：
@jnpdx的意思是（我認為是）--這樣你可以讓iOS直接從遠程URL流，而不用自己處理下載檔案
func loadAudio(post: CompPost, completion: @escaping (AVAudioPlayer) ->（）)
{
let audioRef = Storage.storage（）。 reference().child("cPosts").child(post.uid).child("Audio").child(post.mp3)
audioRef.downloadURL
{ (url, error) in.
print("mp3filename: " post.mp3)
guard error == nil else
{
print(error！.localizedDescription)
return /**alert**/ }
let audioURL = url
print("url:" audioURL！.absoluteString)
do.
{
**try self. audioPlayer = AVPlayer(url: audioURL! )**
completion(self.audioPlayer)
print("this HAS LOADED")
}
catch("this has LOADED")
{
print("COULD NOT ASSIGN URL - Error = /（error）") /**alert**/
//error here that keeps on happening :()
}
}
}
uj5u.com熱心網友回復：
代替:
try self. audioPlayer = AVAudioPlayer(contentsOf: audioURL! )
嘗試使用這個（注意嘗試的位置）：
do {
self.audioPlayer = try AVAudioPlayer( contentsOf: audioURL! )
完成(self.audioPlayer)
} catch {
print("===> " error.localizedDescription)
}
你當然也可以使用AVPlayer（沒有do/catch）
。轉載請註明出處，本文鏈接：https://www.uj5u.com/qukuanlian/319546.html
標籤：
上一篇：如何忽略無效的URL引數？
下一篇：React路由不匹配查詢字串