The iOS development and editing box is blocked by the system's soft keyboard.

When we develop the registration interface, the last few registration conditions are often easily blocked by the system pop-up keyboard, such:

As you can see, the mailbox condition is blocked. How can this problem be solved? I calculated the offset using the UITextField Proxy:

-(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. get the frame CGRect frame = self of textField of the blocked mailbox. emailTextField. frame; // 2. calculate the distance between the height (Y coordinate) represented by the bottom of the masked textField and the maximum height (Y coordinate) not blocked by the keyboard. int offset = frame. origin. y + 32-(self. view. frame. size. height-216); [UIView animateWithDuration: 0.3 animations: ^ {if (offset> 0) {// Let the entire view offset up to 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: ^ {// After editing, reset it to the original self. view. frame = CGRectMake (0, 0, self. view. frame. size. width, self. view. frame. size. height);}];}

Result chart: