我正在尝试编写一个简单的函数来检查是否安装了特定的键盘。
这是我到目前为止在函数中所拥有的:
func isCustomKeyboardEnabled() {
let bundleID:NSString = "com.company.MyApp.Keyboard"
let installedKeyboards = NSUserDefaults.standardUserDefaults().objectForKey("AppleKeyboards")
println(installedKeyboards)
}
这是它在控制台中返回的内容:
Optional((
"en_GB@hw=British;sw=QWERTY",
"emoji@sw=Emoji",
"com.nuance.swype.app.Global-Keyboard",
))
我很难检查我的bundleID
是否在这个返回的物体中。我已经尝试了for in
和anif(contains(x,x))
,但它无法构建。任何帮助将非常感激。
Swift 2.0解决方案:
func installedKeyboards(){
if let installedKeyboard = NSUserDefaults.standardUserDefaults().objectForKey("AppleKeyboards") as? [String]{
if installedKeyboard.contains("Your Unique Identifier"){
print("Custom Keyboard Found")
}else{
print("Custom Keyboard Not Installed")
}
}
}
你有一个Optional
响应,意味着价值可能是nil
。尝试这样做:
if let installedKeyboards = NSUserDefaults.standardUserDefaults().objectForKey("AppleKeyboards") {
if (contains(installedKeyboards, "Your keyboard") {
// Do stuff.
}
}
这是Statik的Swift 4版本答案:
func installedKeyboards() {
if let installedKeyboard = UserDefaults.standard.object(forKey: "AppleKeyboards") as? [String] {
if installedKeyboard.contains("Your Unique Identifier") {
print("Custom Keyboard Found")
}
else {
print("Custom Keyboard Not Installed")
}
}
}