applescript - Spotify 的“播放器状态”在编辑器中可用，但在打包的应用程序中，它只能获得“«constant ****kPSP»”

Question

这是一个测试代码：

tell application "Spotify"
    set playerState to player state as string
end tell
display dialog playerState

在 AppleScript 编辑器中工作正常。但是，当我将脚本导出为应用程序时，我得到的只是：

为什么会这样？

Answer 1

似乎 Spotify 并没有将常量强制转换为字符串。由于编辑器无法像在 AppleScript Editor 中运行脚本时那样从 applet 强制它，因此返回四字母常量代码。由于您无法将播放器状态的值作为字符串进行测试，因此请尝试根据常量本身对其进行测试。

property spotPause : «constant ****kPSp»
property spotPlay : «constant ****kPSP»

tell application "Spotify" to set playerState to player state

if playerState = spotPause then
    display dialog "paused"
else if playerState = spotPlay then
    display dialog "playing"
end if

Answer 2

最好使用此代码来获取播放器状态。您不需要知道确切的常数值。适用于 OS X 10.13

tell application "Spotify"
    if player state is playing then
        display dialog "Player running"
    else if player state is paused then
        display dialog "Player paused"
    else if player is stopped then
        display dialog "Player is stopped"
    else
        display dialog "Unknow state"
    end if
end tell

Answer 3

我无法评论adayzdone的答案，但这里有一个替代方案：

if player state is playing or player state is paused then

例如

if application "Spotify" is running then
    
    tell application "Spotify"
        
        if player state is playing or player state is paused then
            
            set trackID to (get id of current track)
            
        end if
        
    end tell
    
end if

在我自己的 Spotify-Applescript 项目上工作时，这至少适用于 Catalina (10.15.7)。

这个想法的来源来自这个线程。