我們在開發註冊介面的時候,最後幾個註冊條件常常容易被系統彈出的鍵盤遮擋,如:
可以看見,郵箱條件被遮擋掉了,怎麼解決呢?我是通過UITextField的代理加計算位移量:
- (void)viewDidLoad{ [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib. self.emailTextField.delegate = self;}- (void)textFieldDidBeginEditing:(UITextField *)textField{ // 1.取得被遮擋的郵箱的textField的frame CGRect frame = self.emailTextField.frame; // 2.計算被遮擋的textField的bottom代表的高度(Y座標) 與 能不被鍵盤遮擋的最大高度(Y座標) 的距離 int offset = frame.origin.y + 32 - (self.view.frame.size.height - 216); [UIView animateWithDuration:0.3 animations:^{ if (offset > 0) { // 讓整個view向上位移差距 self.view.frame = CGRectMake(0, -offset, self.view.frame.size.width, self.view.frame.size.height); } }]; }- (void)textFieldDidEndEditing:(UITextField *)textField{ [UIView animateWithDuration:0.3 animations:^{ // 編輯結束後重設為原來的 self.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height); }];} 結果圖: