Guard against cases where stale url is loaded.

ospr · ospr · commit 909ca1cdc6dc · 2017-02-10T12:19:32.000-08:00
diff --git a/Source/FDWaveformView.swift b/Source/FDWaveformView.swift
@@ -33,6 +33,8 @@ open class FDWaveformView: UIView {
             
             FDAudioContext.load(fromAudioURL: audioURL) { audioContext in
                 DispatchQueue.main.async {
+                    guard self.audioURL == audioContext?.audioURL else { return }
+                    
                     if audioContext == nil {
                         NSLog("FDWaveformView failed to load URL: \(audioURL)")
                     }

Original file line number	Diff line number	Diff line change
`@@ -33,6 +33,8 @@ open class FDWaveformView: UIView {`
`33`	`33`
`34`	`34`	`FDAudioContext.load(fromAudioURL: audioURL) { audioContext in`
`35`	`35`	`DispatchQueue.main.async {`
	`36`	`+ guard self.audioURL == audioContext?.audioURL else { return }`
	`37`	`+`
`36`	`38`	`if audioContext == nil {`
`37`	`39`	`NSLog("FDWaveformView failed to load URL: \(audioURL)")`
`38`	`40`	`}`