這篇文章主要介紹了iOS如何實(shí)現(xiàn)鍵盤自適應(yīng)彈出效果,具有一定借鑒價(jià)值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
網(wǎng)站建設(shè)哪家好,找成都創(chuàng)新互聯(lián)公司!專注于網(wǎng)頁設(shè)計(jì)、網(wǎng)站建設(shè)、微信開發(fā)、微信小程序開發(fā)、集團(tuán)企業(yè)網(wǎng)站建設(shè)等服務(wù)項(xiàng)目。為回饋新老客戶創(chuàng)新互聯(lián)還提供了梅縣免費(fèi)建站歡迎大家使用!
一、iOS鍵盤自適應(yīng)彈出效果圖
二、工程圖
三、代碼
ViewController.h
#import@interface ViewController : UIViewController @end
ViewController.m
#import "ViewController.h" @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]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; } #pragma -mark -keyboard notificatin - (void)keyboardWillShow:(NSNotification *)notification { NSDictionary *info = [notification userInfo]; // keyboardHeight 為鍵盤高度 CGSize keyboardSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size; [self animateViewWithKeyboardHeight:keyboardSize.height]; } - (void)keyboardWillHide:(NSNotification *)notification { [self animateViewWithKeyboardHeight:0.0]; } - (void)animateViewWithKeyboardHeight:(CGFloat)keyboardHeight { NSTimeInterval animationDuration = 0.3f; CGFloat height = self.view.bounds.size.height; CGFloat width = self.view.bounds.size.width; CGFloat topSize = 0.0; CGFloat viewH = self.view.frame.size.height-64; CGFloat deviceHeight = [UIScreen mainScreen].bounds.size.height; CGFloat animateH = deviceHeight - viewH - keyboardHeight; if (animateH >= 0) { topSize = 0; CGRect toRect = CGRectMake(0, topSize, width, height); self.view.frame = toRect; } else { topSize = animateH; CGRect toRect = CGRectMake(0, topSize, width, height); [UIView animateWithDuration:animationDuration animations:^{ self.view.frame = toRect; }]; } } #pragma -mark -UITextFieldDelegate -(BOOL)textFieldShouldReturn:(UITextField *)textField { [textField resignFirstResponder]; return YES; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end
感謝你能夠認(rèn)真閱讀完這篇文章,希望小編分享的“iOS如何實(shí)現(xiàn)鍵盤自適應(yīng)彈出效果”這篇文章對(duì)大家有幫助,同時(shí)也希望大家多多支持創(chuàng)新互聯(lián),關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,更多相關(guān)知識(shí)等著你來學(xué)習(xí)!