lib/ios/examples/hello_ios.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Simple iOS app with a single label
  16 module hello_ios is
  17         app_name "Hello iOS"
  18         app_namespace "nit.app.hello_ios"
  19         app_version(0, 5, git_revision)
  20 end
  21
  22 import ios
  23
  24 redef class App
  25         redef fun did_finish_launching_with_options
  26         do
  27                 return app_delegate.hello_world
  28         end
  29 end
  30
  31 redef class AppDelegate
  32
  33         # Print and show "Hello World!"
  34         private fun hello_world: Bool in "ObjC" `{
  35
  36                 // Print to the console
  37                 NSLog(@"Hello World!");
  38
  39                 // Display "Hello world!" on the screen
  40                 CGRect frame = [[UIScreen mainScreen] bounds];
  41                 self.window = [[UIWindow alloc] initWithFrame: frame];
  42                 self.window.backgroundColor = [UIColor whiteColor];
  43
  44                 UILabel *label = [[UILabel alloc] init];
  45                 label.text = @"Hello World!";
  46                 label.center = CGPointMake(100, 100);
  47                 [label sizeToFit];
  48
  49                 // As with `self.window` we must set a `rootViewController`
  50                 self.window.rootViewController = [[UIViewController alloc]initWithNibName:nil bundle:nil];
  51                 self.window.rootViewController.view = label;
  52
  53                 [self.window addSubview: label];
  54                 [self.window makeKeyAndVisible];
  55
  56                 return YES;
  57         `}
  58 end