iOS Replace Keyboard with UIPickerView then Back to Keyboard - ios

Question

I have a textfield in my app in which a user can choose a Group they belong to, along with several other fields. When they get to the Group TextField, it pops up a UIPickerView that has several choices that have already been created, along with an option to "Create New Group". When that option is chosen, I want the UIPickerView to go away, and have the keyboard pop back up so they can type again. I can get the picker view to appear and to go away, but can't get the keyboard back. Here is code so far.
-(void)addPickerView{
__block NSMutableArray *arr = [[NSMutableArray alloc] init];
PFQuery *rejectedNumber = [PFQuery queryWithClassName:#"Group"];
[rejectedNumber orderByAscending:#"GroupName"];
[rejectedNumber findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!objects) {
// Did not find any UserStats for the current user
NSLog(#"NotFound");
} else {
pickerArray = objects;
[myPickerView reloadAllComponents];
}
}];
//pickerArray = GoGo;
self.theView.signUpView.additionalField.delegate = self;
[self.theView.signUpView.additionalField setPlaceholder:#"Choose Group"];
myPickerView = [[UIPickerView alloc]init];
myPickerView.dataSource = self;
myPickerView.delegate = self;
myPickerView.showsSelectionIndicator = YES;
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc]
initWithTitle:#"Done" style:UIBarButtonItemStyleDone
target:self action:#selector(finishIt)];
UIToolbar *toolBar = [[UIToolbar alloc]initWithFrame:
CGRectMake(0, self.view.frame.size.height-
self.theView.signUpView.additionalField.frame.size.height-50, 320, 50)];
[toolBar setBarStyle:UIBarStyleBlackOpaque];
NSArray *toolbarItems = [NSArray arrayWithObjects:
doneButton, nil];
[toolBar setItems:toolbarItems];
self.theView.signUpView.additionalField.inputView = myPickerView;
self.theView.signUpView.additionalField.inputAccessoryView = toolBar;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component{
return [pickerArray count] + 1;
}
#pragma mark- Picker View Delegate
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:
(NSInteger)row inComponent:(NSInteger)component{
if (row == 0)
[self.theView.signUpView.additionalField.inputView removeFromSuperview];
[self.theView.signUpView.additionalField becomeFirstResponder];
}
else {
[self.theView.signUpView.additionalField setText:self.theGroup];
}
}
- (NSString*)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSString *groupName = #"Create New Group";
if (row != 0)
{
PFObject *object = pickerArray[row - 1]; // -1 to handle the array index
self.theGroup = object[#"GroupName"];
groupName = object[#"GroupName"];
}
return groupName;
}

Answer 1

First thing i noticed is, you missed a braces here after if condition:
if (row == 0)
[self.theView.signUpView.additionalField.inputView removeFromSuperview];
[self.theView.signUpView.additionalField becomeFirstResponder];
}
Instead use this:
if (row == 0) {
[self.theView.signUpView.additionalField resignFirstResponder];
self.theView.signUpView.additionalField.inputView = nil;
[self.theView.signUpView.additionalField becomeFirstResponder];
}