一、效果图
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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。
