UIView moves down when Assigning Value to UITextField - ios

Question

I'm making an app that moves the view (when iPone 4s/5/5c/5s) up when the keyboard is shown. however, when i type something using the number pa, it triggers the view to go back down. The code for textField:shouldChangeCharactersInRange:replacementString changes the text and then assigns it back to the textbook.
- (BOOL) textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSString* totalString = [NSString stringWithFormat:#"%#%#",textField.text,string];
if(textField.tag==102) {
if (([textField.text isEqualToString:#"0"]) && (textField.text.length == 1)) {
textField.text = #"";
NSLog(#"Zero Encountered");
return NO;
}
if (range.length == 1) {
// Delete button was hit.. so tell the method to delete the last char.
textField.text = [_iOSApiService_model formatPhoneNumber:totalString deleteLastChar:YES];
} else {
textField.text = [_iOSApiService_model formatPhoneNumber:totalString deleteLastChar:NO];
}
return YES;
}
return YES;
}
-(void) keyboardWasShown:(NSNotification *)notification {
//The keyboard was shown, move movableView objects UP
NSLog(#"value of _keyboardshownUp is %i",_keyboardshownUp);
if (_keyboardshownUp == 1) {
//Keyboard was already shown
} else {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
//This will move the frame back to place
_movableView.frame = CGRectMake(_movableView.frame.origin.x,
_movableView.frame.origin.y+_variableMove,
_movableView.frame.size.width,
_movableView.frame.size.height);
[UIView commitAnimations];
NSLog(#"Move View up");
_keyboardshownUp = 1;
}
}
-(void) keyboardWillHide:(NSNotification *)notification {
//The keyboard was shown, move movableView objects down
NSLog(#"value of _keyboardshownUp is %i",_keyboardshownUp);
if (_keyboardshownUp == 0) {
//Keyboard was already hiden
} else {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
//This will move the frame back to place
_movableView.frame = CGRectMake(_movableView.frame.origin.x,
_movableView.frame.origin.y-_variableMove,
_movableView.frame.size.width,
_movableView.frame.size.height);
[UIView commitAnimations];
NSLog(#"Move View Down");
_keyboardshownUp = 0;
}
}
I'm doing this in conjunction with UIKeyboardWillHideNotification and UIKeyboardDidShowNotification. If i disable the textField:shouldChangeCharactersInRange:replacementString then there is no problem. but, the moment I assign a value to the "issue" UITextField, as if the keyboard was hidden (even though it is not) and the Main UIView reverts back to its orig position thus the Keyboard obscures the view. PLEASE HELP!!!

Answer 1

Recently i have facing these sort of problem too much, thats why i'm creating a library to face this situation. Take a look at KeyboardAnimator. Hope it met your requirement.

Answer 2

To moves your UI controller, when assigning value to UITextField use the "IQKeybordManager" a library to solved this situation.
IQKeybordManager ran into an issues where the iPhone keyboard slide up and cover the UITextField/UITextView. IQKeyboardManager allows you to prevent issues of the keyboard sliding up and cover UITextField/UITextView without needing you to enter any code and no additional setup required. To use IQKeyboardManager you simply need to add source files to your project.