【代碼筆記】iOS-螢幕根據鍵盤自動的變化高度，代碼筆記ios-高度

【代碼筆記】iOS-螢幕根據鍵盤自動的變化高度，代碼筆記ios-高度

一，。

二，代碼。

ViewController.h

#import <UIKit/UIKit.h>@interface ViewController : UIViewController<UITextFieldDelegate>@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 恢複原位    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個單位，按實際情況設定    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