custom delegate and previous/next custom button

TPKeyboardAvoiding/TPKeyboardAvoidingAction.h

@@ -0,0 +1,15 @@
+//
+//  TPKeyboardAvoidingAction.h
+//  postepay-Simulatore
+//
+//  Created by Antonio Scardigno on 10/01/2020.
+//  Copyright © 2020 Poste Italiane SPA. All rights reserved.
+//
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NSString *TPKeyboardAvoidingAction NS_TYPED_ENUM;
+extern TPKeyboardAvoidingAction const TPKeyboardAvoidingActionNextTextField;
+extern TPKeyboardAvoidingAction const TPKeyboardAvoidingActionPrevTextField;
+
+NS_ASSUME_NONNULL_END

TPKeyboardAvoiding/TPKeyboardAvoidingAction.m

@@ -0,0 +1,12 @@
+//
+//  TPKeyboardAvoidingAction.m
+//  postepay-Simulatore
+//
+//  Created by Antonio Scardigno on 10/01/2020.
+//  Copyright © 2020 Poste Italiane SPA. All rights reserved.
+//
+
+#import "TPKeyboardAvoidingAction.h"
+
+TPKeyboardAvoidingAction const TPKeyboardAvoidingActionNextTextField = @"TPKeyboardAvoidingActionNextTextField";
+TPKeyboardAvoidingAction const TPKeyboardAvoidingActionPrevTextField = @"TPKeyboardAvoidingActionPrevTextField";

TPKeyboardAvoiding/TPKeyboardAvoidingCollectionView.m

@@ -97,17 +97,73 @@ - (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
     [super touchesEnded:touches withEvent:event];
 }
 
+-(void)layoutSubviews {
+    [super layoutSubviews];
+    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
+    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+}
+
+#pragma mark - UITextField delegate methods
+
 -(BOOL)textFieldShouldReturn:(UITextField *)textField {
     if ( ![self focusNextTextField] ) {
         [textField resignFirstResponder];
     }
+
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldReturn:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldReturn:textField];
+    }
+
     return YES;
 }
 
--(void)layoutSubviews {
-    [super layoutSubviews];
-    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
-    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+-(void)textFieldDidBeginEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidBeginEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidBeginEditing:textField];
+    }
+}
+
+-(void)textFieldDidEndEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidEndEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidEndEditing:textField];
+    }
+}
+
+-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldBeginEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldBeginEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldEndEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldEndEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldEndEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textField:shouldChangeCharactersInRange:replacementString:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textField:textField shouldChangeCharactersInRange:range replacementString:string];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldClear:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldClear:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldClear:textField];
+    }
+
+    return YES;
 }
 
 @end

TPKeyboardAvoiding/TPKeyboardAvoidingScrollView.m

@@ -76,17 +76,73 @@ - (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
     [super touchesEnded:touches withEvent:event];
 }
 
+-(void)layoutSubviews {
+    [super layoutSubviews];
+    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
+    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+}
+
+#pragma mark - UITextField delegate methods
+
 -(BOOL)textFieldShouldReturn:(UITextField *)textField {
     if ( ![self focusNextTextField] ) {
         [textField resignFirstResponder];
     }
+
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldReturn:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldReturn:textField];
+    }
+
     return YES;
 }
 
--(void)layoutSubviews {
-    [super layoutSubviews];
-    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
-    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+-(void)textFieldDidBeginEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidBeginEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidBeginEditing:textField];
+    }
+}
+
+-(void)textFieldDidEndEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidEndEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidEndEditing:textField];
+    }
+}
+
+-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldBeginEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldBeginEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldEndEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldEndEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldEndEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textField:shouldChangeCharactersInRange:replacementString:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textField:textField shouldChangeCharactersInRange:range replacementString:string];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldClear:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldClear:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldClear:textField];
+    }
+
+    return YES;
 }
 
 @end

TPKeyboardAvoiding/TPKeyboardAvoidingTableView.m

@@ -22,6 +22,8 @@ - (void)setup {
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(TPKeyboardAvoiding_keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(scrollToActiveTextField) name:UITextViewTextDidBeginEditingNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(scrollToActiveTextField) name:UITextFieldTextDidBeginEditingNotification object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(goToNextTextField) name:TPKeyboardAvoidingActionNextTextField object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(goToPrevTextField) name:TPKeyboardAvoidingActionPrevTextField object:nil];
 }
 
 -(id)initWithFrame:(CGRect)frame {
@@ -81,14 +83,26 @@ -(void)setContentSize:(CGSize)contentSize {
 
 - (BOOL)focusNextTextField {
     return [self TPKeyboardAvoiding_focusNextTextField];
-
 }
+
+- (BOOL)focusPrevTextField {
+    return [self TPKeyboardAvoiding_focusPrevTextField];
+}
+
 - (void)scrollToActiveTextField {
     return [self TPKeyboardAvoiding_scrollToActiveTextField];
 }
 
 #pragma mark - Responders, events
 
+-(void) goToNextTextField {
+    [self focusNextTextField];
+}
+
+-(void) goToPrevTextField {
+    [self focusPrevTextField];
+}
+
 -(void)willMoveToSuperview:(UIView *)newSuperview {
     [super willMoveToSuperview:newSuperview];
     if ( !newSuperview ) {
@@ -101,17 +115,73 @@ - (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
     [super touchesEnded:touches withEvent:event];
 }
 
+-(void)layoutSubviews {
+    [super layoutSubviews];
+    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
+    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+}
+
+#pragma mark - UITextField delegate methods
+
 -(BOOL)textFieldShouldReturn:(UITextField *)textField {
     if ( ![self focusNextTextField] ) {
         [textField resignFirstResponder];
     }
+
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldReturn:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldReturn:textField];
+    }
+
     return YES;
 }
 
--(void)layoutSubviews {
-    [super layoutSubviews];
-    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
-    [self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
+-(void)textFieldDidBeginEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidBeginEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidBeginEditing:textField];
+    }
+}
+
+-(void)textFieldDidEndEditing:(UITextField *)textField {
+    if ([[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldDidEndEditing:)]) {
+        [[[self textFieldDelegates] objectForKey:textField] textFieldDidEndEditing:textField];
+    }
+}
+
+-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldBeginEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldBeginEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldEndEditing:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldEndEditing:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldEndEditing:textField];
+    }
+
+    return YES;
+}
+
+-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textField:shouldChangeCharactersInRange:replacementString:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textField:textField shouldChangeCharactersInRange:range replacementString:string];
+    }
+
+    return YES;
+}
+
+-(BOOL)textFieldShouldClear:(UITextField *)textField {
+    if ([[self textFieldDelegates] objectForKey:textField]
+        && [[[self textFieldDelegates] objectForKey:textField] respondsToSelector:@selector(textFieldShouldClear:)]) {
+        return [[[self textFieldDelegates] objectForKey:textField] textFieldShouldClear:textField];
+    }
+
+    return YES;
 }
 
 @end

TPKeyboardAvoiding/UIScrollView+TPKeyboardAvoidingAdditions.h

@@ -7,9 +7,14 @@
 //
 
 #import <UIKit/UIKit.h>
+#import "TPKeyboardAvoidingAction.h"
 
 @interface UIScrollView (TPKeyboardAvoidingAdditions)
+
+@property (strong, nonatomic) NSMapTable<UIView *, id<UITextFieldDelegate>>* textFieldDelegates;
+
 - (BOOL)TPKeyboardAvoiding_focusNextTextField;
+- (BOOL)TPKeyboardAvoiding_focusPrevTextField;
 - (void)TPKeyboardAvoiding_scrollToActiveTextField;
 
 - (void)TPKeyboardAvoiding_keyboardWillShow:(NSNotification*)notification;
@@ -18,5 +23,5 @@
 - (void)TPKeyboardAvoiding_updateFromContentSizeChange;
 - (void)TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:(UIView*)view;
 - (UIView*)TPKeyboardAvoiding_findFirstResponderBeneathView:(UIView*)view;
--(CGSize)TPKeyboardAvoiding_calculatedContentSizeFromSubviewFrames;
+- (CGSize)TPKeyboardAvoiding_calculatedContentSizeFromSubviewFrames;
 @end