网络书城网站开发 需求分析,工业园区网站建设方案,深圳外贸公司有哪些,免费crm平台要想以编程的方式创建视图#xff0c;需要使用视图控制器中定义的viewDidLoad方法#xff0c;只有在运行期间生成UI时才需要实现该方法。
在此只贴出viewDidLoad方法的代码#xff0c;因为只需要在这个方法里面编写代码#xff1a; [cpp] view plaincopyprint?- (void)vi…要想以编程的方式创建视图需要使用视图控制器中定义的viewDidLoad方法只有在运行期间生成UI时才需要实现该方法。
在此只贴出viewDidLoad方法的代码因为只需要在这个方法里面编写代码 [cpp] view plaincopyprint? - (void)viewDidLoad { self.navigationItem.title 动态创建UI; UIView *myview [[UIView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame]; myview.backgroundColor [UIColor blackColor]; CGRect frame CGRectMake(10, 15, 300, 20); UILabel *mylabel [[UILabel alloc]initWithFrame:frame]; mylabel.text 这是动态创建的label; mylabel.backgroundColor [UIColor clearColor]; mylabel.font [UIFont fontWithName:Verdana size:20]; mylabel.textColor [UIColor lightGrayColor]; mylabel.textAlignment UITextAlignmentCenter; frame CGRectMake(10, 70, 300, 50); //UIButton *mybutton [[UIButton alloc]initWithFrame:frame]; UIButton *mybutton [UIButton buttonWithType:UIButtonTypeRoundedRect]; mybutton.frame frame; [mybutton setTitle:点我 forState:UIControlStateNormal]; mybutton.backgroundColor [UIColor clearColor]; [mybutton addTarget:self action:selector(buttonclc) forControlEvents:UIControlEventTouchUpInside]; [myview addSubview:mylabel]; [myview addSubview:mybutton]; self.view myview; [mylabel release]; [super viewDidLoad]; // Do any additional setup after loading the view from its nib. } - (void)viewDidLoad
{
self.navigationItem.title 动态创建UI;
UIView *myview [[UIView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];
myview.backgroundColor [UIColor blackColor];
CGRect frame CGRectMake(10, 15, 300, 20);
UILabel *mylabel [[UILabel alloc]initWithFrame:frame];
mylabel.text 这是动态创建的label;
mylabel.backgroundColor [UIColor clearColor];
mylabel.font [UIFont fontWithName:Verdana size:20];
mylabel.textColor [UIColor lightGrayColor];
mylabel.textAlignment UITextAlignmentCenter;
frame CGRectMake(10, 70, 300, 50);
//UIButton *mybutton [[UIButton alloc]initWithFrame:frame];
UIButton *mybutton [UIButton buttonWithType:UIButtonTypeRoundedRect];
mybutton.frame frame;
[mybutton setTitle:点我 forState:UIControlStateNormal];
mybutton.backgroundColor [UIColor clearColor];
[mybutton addTarget:self action:selector(buttonclc) forControlEvents:UIControlEventTouchUpInside];
[myview addSubview:mylabel];
[myview addSubview:mybutton];
self.view myview;
[mylabel release];
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
解释下上面的代码 上面代码有三段
第一段创建的是UIView对象它可以作为容器容纳其他视图。
第二段是创建一个Label视图。
第三段是创建一个UIButton视图。
注意千万不要忘记将创建的视图加入第一步创建的view中也不要忘记了将创建的view赋值给当前窗口的view [cpp] view plaincopyprint? [myview addSubview:mylabel]; [myview addSubview:mybutton]; self.view myview; [myview addSubview:mylabel];
[myview addSubview:mybutton];
self.view myview;
