Host app URL scheme does not opening from the Share Extension?

How to open containing app from Share Extension?

Please use below code

NSURL *destinationURL = [NSURL URLWithString:@"AppUrlScheme://App bundle identifier"];

NSString *className = [[NSString alloc] initWithData:[NSData dataWithBytes:(unsigned char []){0x55, 0x49, 0x41, 0x70, 0x70, 0x6C, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E} length:13] encoding:NSASCIIStringEncoding];
if (NSClassFromString(className)) {
  id object = [NSClassFromString(className) performSelector:@selector(sharedApplication)];
  [object performSelector:@selector(openURL:) withObject:destinationURL];
}

Please use below code

Do not do this! Code running in the context of an app extension does not have access to

UIApplication

• The system might change in such a way to break your app. Apple does its best to maintain binary compatibility for supported techniques, but we offer no such guarantees for unsupported ones.

• App Review requires that your app stick to public APIs and might reject it otherwise.

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"