1 files changed, 33 insertions, 0 deletions
diff --git a/platform/ios/app/MBXAppDelegate.m b/platform/ios/app/MBXAppDelegate.m
new file mode 100644
index 0000000000..a06424feb7
--- /dev/null
+++ b/platform/ios/app/MBXAppDelegate.m
@@ -0,0 +1,33 @@
+#import "MBXAppDelegate.h"
+#import "MBXViewController.h"
+#import <Mapbox/Mapbox.h>
+
+@implementation MBXAppDelegate
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
+{
+    // Set access token, unless MGLAccountManager already read it in from Info.plist.
+    if ( ! [MGLAccountManager accessToken]) {
+        NSString *accessToken = [[NSProcessInfo processInfo] environment][@"MAPBOX_ACCESS_TOKEN"];
+        if (accessToken) {
+            // Store to preferences so that we can launch the app later on without having to specify
+            // token.
+            [[NSUserDefaults standardUserDefaults] setObject:accessToken forKey:@"access_token"];
+        } else {
+            // Try to retrieve from preferences, maybe we've stored them there previously and can reuse
+            // the token.
+            accessToken = [[NSUserDefaults standardUserDefaults] objectForKey:@"access_token"];
+        }
+        if ( ! accessToken) NSLog(@"No access token set. Mapbox vector tiles won't work.");
+
+        [MGLAccountManager setAccessToken:accessToken];
+    }
+
+    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
+    self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[MBXViewController new]];
+    [self.window makeKeyAndVisible];
+
+    return YES;
+}
+
+@end