iPhone中用代码创建 App Window是本文要介绍的内容,不多说,我们之间进入话题,该例介绍如何用代码这创建iPhone的app的window,这样可以使我们的app不依赖任何nib文件,完全邮代码实现。
1.创建基于"window-based application"的新项目"CodingWindowDemo";
2.删除MainWindow.xib文件;
3.删除CodingWindowDemo-Info.plist文件中"Main nib file base name"行;
4.修改main.m代码:
- 将原来行:
- int retVal = UIApplicationMain(argc, argv, nil, nil);
- 改为:
- int retVal = UIApplicationMain(argc, argv, nil, @"CodingWindowDemoAppDelegate");
5.修改CodingWindowDemoAppDelegate.h后代码如下:
- #import <UIKit/UIKit.h>
- @interface CodingWindowDemoAppDelegate : NSObject <UIApplicationDelegate> {
- UIWindow *window;}//@property (nonatomic, retain) IBOutlet UIWindow *window;
- @end
6.修改CodingWindowDemoAppDelegate.m后代码如下:
- #import "CodingWindowDemoAppDelegate.h"
- @implementation CodingWindowDemoAppDelegate
- //@synthesize window;
- #pragma mark -
- #pragma mark Application lifecycle
- - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
- // Override point for customization after application launch.
- window = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
- window.backgroundColor = [UIColor blueColor];
- //这里可以加入加载view的代码
- //...
- [window makeKeyAndVisible];
- return YES;
- }
- #pragma mark -
- #pragma mark Memory management- (void)dealloc {
- [window release];
- [super dealloc];
- }
- @end
小结:iPhone中用代码创建 App Window的内容介绍完了,希望本文对你 有所帮助!