重庆分公司,新征程启航
为企业提供网站建设、域名注册、服务器等服务
一、效果图
成都创新互联是一家朝气蓬勃的网站建设公司。公司专注于为企业提供信息化建设解决方案。从事网站开发,网站制作,网站设计,网站模板,微信公众号开发,软件开发,小程序开发,10年建站对成都混凝土泵车等多个方面,拥有多年的网站推广经验。
二、代码
ViewController.h
#import@interface ViewController : UIViewController @end
ViewController.m
#import "ViewController.h" #define W [UIScreen mainScreen].bounds.size.width #define H [UIScreen mainScreen].bounds.size.height @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. UITextField *field=[[UITextField alloc]initWithFrame:CGRectMake(100, 300, 50, 50)]; field.backgroundColor=[UIColor redColor]; field.delegate=self; [self.view addSubview:field]; } #pragma -mark -UITextFieldDelegate -(BOOL)textFieldShouldReturn:(UITextField *)textField { [textField resignFirstResponder]; //self.view 恢复原位 NSTimeInterval animationDuration=0.10f; [UIView beginAnimations:@"ResizeForKeyboard" context:nil]; [UIView setAnimationDuration:animationDuration]; float width = W; float height = H; float Y = 0.0f; CGRect rect=CGRectMake(0.0f,Y,width,height); self.view.frame=rect; [UIView commitAnimations]; return YES; } -(BOOL)textFieldShouldBeginEditing:(UITextField *)textField { NSTimeInterval animationDuration=0.30f; [UIView beginAnimations:@"ResizeForKeyboard" context:nil]; [UIView setAnimationDuration:animationDuration]; float width = W; float height = H; //上移100个单位,按实际情况设置 CGRect rect=CGRectMake(0.0f,-100,width,height); self.view.frame=rect; [UIView commitAnimations]; return YES; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。