Is it possible to get the containing app's NSBundle
from within an app extension? I would like to get the main app's display name, not the extension's display name.
The +mainBundle
method returns the bundle containing the "current application executable", which is a subfolder of your app when called from within an extension.
This solution involves peeling off two directory levels from the URL of the bundle, when it ends in "appex".
Objective-C
NSBundle *bundle = [NSBundle mainBundle];
if ([[bundle.bundleURL pathExtension] isEqualToString:@"appex"]) {
// Peel off two directory levels - MY_APP.app/PlugIns/MY_APP_EXTENSION.appex
bundle = [NSBundle bundleWithURL:[[bundle.bundleURL URLByDeletingLastPathComponent] URLByDeletingLastPathComponent]];
}
NSString *appDisplayName = [bundle objectForInfoDictionaryKey:@"CFBundleDisplayName"];
Swift 2.2
var bundle = NSBundle.mainBundle()
if bundle.bundleURL.pathExtension == "appex" {
// Peel off two directory levels - MY_APP.app/PlugIns/MY_APP_EXTENSION.appex
bundle = NSBundle(URL: bundle.bundleURL.URLByDeletingLastPathComponent!.URLByDeletingLastPathComponent!)!
}
let appDisplayName = bundle.objectForInfoDictionaryKey("CFBundleDisplayName")
Swift 3
var bundle = Bundle.main
if bundle.bundleURL.pathExtension == "appex" {
// Peel off two directory levels - MY_APP.app/PlugIns/MY_APP_EXTENSION.appex
let url = bundle.bundleURL.deletingLastPathComponent().deletingLastPathComponent()
if let otherBundle = Bundle(url: url) {
bundle = otherBundle
}
}
let appDisplayName = bundle.object(forInfoDictionaryKey: "CFBundleDisplayName")
This will break if the pathExtension or the directory structure for an iOS extension ever changes.
Building upon @phatblat's answer, here is a solution which is less likely to break from file structure changes.
extension Bundle {
/// Return the main bundle when in the app or an app extension.
static var app: Bundle {
var components = main.bundleURL.path.split(separator: "/")
var bundle: Bundle?
if let index = components.lastIndex(where: { $0.hasSuffix(".app") }) {
components.removeLast((components.count - 1) - index)
bundle = Bundle(path: components.joined(separator: "/"))
}
return bundle ?? main
}
}
Use this extensions and you'll be able to get the main bundle from target extensions:
extension Bundle {
func getBundleName() -> String {
var finalBundleName = Bundle.main.bundleIdentifier ?? "unknow"
if(SwiftUtils.isRunningOnExtension()){
_ = finalBundleName.replaceRegex(#"\.\w+$"#)
}
return finalBundleName
}
}
extension String {
public mutating func replaceRegex(_ pattern: String, replaceWith: String = "") -> Bool {
do {
let regex = try NSRegularExpression(pattern: pattern, options: NSRegularExpression.Options.caseInsensitive)
let range = NSMakeRange(0, self.count)
self = regex.stringByReplacingMatches(in: self, options: [], range: range, withTemplate: replaceWith)
return true
} catch {
return false
}
}
}
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