【文件属性】：
文件名称：IOS入门之HelloWorld源代码
文件大小：3KB
文件格式：TXT
更新时间：2018-11-01 09:07:44
IOS HelloWorld
//
// main.m
// Hello World_Code
//
#import
#import "AppDelegate.h"
int main(int argc, char *argv[])
{
@autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
}
//
// AppDelegate.h
// Hello World_Code
//
#import
@interface AppDelegate : UIResponder
@property (strong, nonatomic) UIWindow *window;
@end
//
// AppDelegate.m
// Hello World_Code
//
#import "AppDelegate.h"
@implementation AppDelegate
- (void)dealloc
{
[_window release];
[super dealloc];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary
*)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]
autorelease];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(320/2.0 - 140/2.0, 80, 140,
40)]; // 1
label.text = @"Hello World";
label.backgroundColor = [UIColor cyanColor];
label.textAlignment = NSTextAlignmentCenter;
[self.window addSubview:label]; // 2
[label release]; // 1
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application
{
// Sent when the application is about to move from active to inactive state. This can
occur for certain types of temporary interruptions (such as an incoming phone call or SMS
message) or when the user quits the application and it begins the transition to the
background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES
frame rates. Games should use this method to pause the game.
}
- (void)applicationDidEnterBackground:(UIApplication *)application
{
// Use this method to release shared resources, save user data, invalidate timers, and
store enough application state information to restore your application to its current state
in case it is terminated later.
// If your application supports background execution, this method is called instead of
applicationWillTerminate: when the user quits.
}
- (void)applicationWillEnterForeground:(UIApplication *)application
{
// Called as part of the transition from the background to the inactive state; here you
can undo many of the changes made on entering the background.
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
// Restart any tasks that were paused (or not yet started) while the application was
inactive. If the application was previously in the background, optionally refresh the user
interface.
}
- (void)applicationWillTerminate:(UIApplication *)application
{
// Called when the application is about to terminate. Save data if appropriate. See also
applicationDidEnterBackground:.
}
@end
