自定义视图窗口控件

#import <UIKit/UIKit.h>

@interface LTView : UIView

#warning 创建需要的属性

@property (nonatomic, retain) UILabel *mLabel;

@property (nonatomic ,retain) UITextField *mTextField;

@end

#import "LTView.h"

@implementation LTView

#warning 第一步，重写初始化方法

- (instancetype)initWithFrame:(CGRect)frame

{

    self = [super initWithFrame:frame];

    if (self) {

        [self createMyView];

    }

    return self;

}

#warning 第三步，创建视图

- (void)createMyView

{

    //初始化我们定义的属性

    self.mLabel = [[UILabel alloc]initWithFrame:CGRectMake(10, 10, 70, 50)];

    self.mLabel.backgroundColor = [UIColor greenColor];

    [self addSubview:self.mLabel];

    [_mLabel release];

    self.mTextField = [[UITextField alloc]initWithFrame:CGRectMake(90, 10, 230, 50)];

    self.mTextField.backgroundColor = [UIColor yellowColor];

    [self addSubview:self.mTextField];

    [_mTextField release];

}

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (void)dealloc

{

    [_window release];

    [super dealloc];

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    self.window.backgroundColor = [UIColor whiteColor];

    [self.window makeKeyAndVisible];

    [_window release];     

    LTView *mView = [[LTView alloc]initWithFrame:CGRectMake(10, 100, 340, 70)];

    mView.backgroundColor = [UIColor grayColor];

    [self.window addSubview:mView];

    [mView release];

    return YES;

}