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Merge pull request Boris-Em#41 from Boris-Em/feature/Groups
Feature/groups
2 parents e880db8 + a1e344d commit 82989c7

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‎Classes/BEMCheckBox.h

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@@ -8,6 +8,7 @@
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#import <UIKit/UIKit.h>
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@class BEMCheckBoxGroup;
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@protocol BEMCheckBoxDelegate;
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/** The different type of boxes available.
@@ -108,6 +109,10 @@ typedef NS_ENUM(NSInteger, BEMAnimationType) {
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*/
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@property (strong, nonatomic) IBInspectable UIColor *tintColor;
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/** The group this box is associated with.
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*/
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@property (weak, nonatomic, nullable, readonly) BEMCheckBoxGroup *group;
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/** The type of box.
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* @see BEMBoxType.
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*/

‎Classes/BEMCheckBox.m

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@@ -9,6 +9,7 @@
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#import "BEMCheckBox.h"
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#import "BEMAnimationManager.h"
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#import "BEMPathManager.h"
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#import "BEMCheckBoxGroup.h"
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@interface BEMCheckBox ()
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@@ -32,6 +33,18 @@ @interface BEMCheckBox ()
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*/
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@property (strong, nonatomic) BEMPathManager *pathManager;
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/** The group this box is associated with.
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*/
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@property (weak, nonatomic, nullable) BEMCheckBoxGroup *group;
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@end
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/** Defines private methods that we can call to update our group's status.
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*/
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@interface BEMCheckBoxGroup ()
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- (void)_checkBoxSelectionChanged:(BEMCheckBox *)checkBox;
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@end
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@implementation BEMCheckBox
@@ -101,7 +114,7 @@ - (void)reload {
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}
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#pragma mark Setters
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- (void)setOn:(BOOL)on animated:(BOOL)animated {
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- (void)_setOn:(BOOL)on animated:(BOOL)animated notifyGroup:(BOOL)notifyGroup {
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_on = on;
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[self drawEntireCheckBox];
@@ -118,6 +131,14 @@ - (void)setOn:(BOOL)on animated:(BOOL)animated {
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[self.checkMarkLayer removeFromSuperlayer];
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}
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}
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if(notifyGroup){
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[self.group _checkBoxSelectionChanged:self];
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}
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}
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- (void)setOn:(BOOL)on animated:(BOOL)animated {
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[self _setOn:on animated:animated notifyGroup:YES];
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}
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- (void)setOn:(BOOL)on {
@@ -167,6 +188,11 @@ - (void)setOnCheckColor:(UIColor *)onCheckColor {
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#pragma mark Gesture Recognizer
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- (void)handleTapCheckBox:(UITapGestureRecognizer *)recognizer {
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// If we have a group that requires a selection, and we're already selected, don't allow a deselection
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if(self.group && self.group.mustHaveSelection && self.on){
193+
return;
194+
}
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[self setOn:!self.on animated:YES];
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if ([self.delegate respondsToSelector:@selector(didTapCheckBox:)]) {
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[self.delegate didTapCheckBox:self];

‎Classes/BEMCheckBoxGroup.h

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,39 @@
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//
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// BEMCheckBoxGroup.h
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// CheckBox
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//
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// Created by Cory Imdieke on 10/17/16.
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// Copyright © 2016 Boris Emorine. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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@class BEMCheckBox;
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@interface BEMCheckBoxGroup : NSObject
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/** An array of check boxes in this group.
16+
*/
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@property (nonatomic, strong, nonnull, readonly) NSOrderedSet<BEMCheckBox *> *checkBoxes;
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/** The currently selected check box. Only can be nil if mustHaveSelection is NO. Setting this value will cause the other check boxes to deselect automatically.
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*/
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@property (nonatomic, strong, nullable) BEMCheckBox *selectedCheckBox;
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/** If YES, don't allow the user to unselect all options, must have single selection at all times. Default to NO.
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*/
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@property (nonatomic) BOOL mustHaveSelection;
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/** Creates a new group with the list of check boxes.
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*/
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+ (nonnull instancetype)groupWithCheckBoxes:(nullable NSArray<BEMCheckBox *> *)checkBoxes;
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/** Adds a check box to this group. Check boxes can only belong to a single group, adding to a group removes it from its current group.
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*/
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- (void)addCheckBoxToGroup:(nonnull BEMCheckBox *)checkBox;
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/** Removes a check box from this group.
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*/
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- (void)removeCheckBoxFromGroup:(nonnull BEMCheckBox *)checkBox;
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@end

‎Classes/BEMCheckBoxGroup.m

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//
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// BEMCheckBoxGroup.m
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// CheckBox
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//
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// Created by Cory Imdieke on 10/17/16.
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// Copyright © 2016 Boris Emorine. All rights reserved.
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//
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#import "BEMCheckBoxGroup.h"
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#import "BEMCheckBox.h"
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@interface BEMCheckBoxGroup ()
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@property (nonatomic, strong, nonnull) NSOrderedSet<BEMCheckBox *> *checkBoxes;
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@end
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/** Defines private methods that we can call on the check box.
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*/
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@interface BEMCheckBox ()
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@property (weak, nonatomic, nullable) BEMCheckBoxGroup *group;
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- (void)_setOn:(BOOL)on animated:(BOOL)animated notifyGroup:(BOOL)notifyGroup;
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26+
@end
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@implementation BEMCheckBoxGroup
29+
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- (instancetype)init {
31+
self = [super init];
32+
if (self) {
33+
_mustHaveSelection = NO;
34+
_checkBoxes = [NSOrderedSet orderedSet];
35+
}
36+
return self;
37+
}
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+ (nonnull instancetype)groupWithCheckBoxes:(nullable NSArray<BEMCheckBox *> *)checkBoxes {
40+
BEMCheckBoxGroup *group = [[BEMCheckBoxGroup alloc] init];
41+
for (BEMCheckBox *checkbox in checkBoxes) {
42+
[group addCheckBoxToGroup:checkbox];
43+
}
44+
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return group;
46+
}
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- (void)addCheckBoxToGroup:(nonnull BEMCheckBox *)checkBox {
49+
if (checkBox.group) {
50+
[checkBox.group removeCheckBoxFromGroup:checkBox];
51+
}
52+
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[checkBox _setOn:NO animated:NO notifyGroup:NO];
54+
checkBox.group = self;
55+
NSMutableOrderedSet *mutableBoxes = [self.checkBoxes mutableCopy];
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[mutableBoxes addObject:checkBox];
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self.checkBoxes = [NSOrderedSet orderedSetWithOrderedSet:mutableBoxes];
58+
}
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- (void)removeCheckBoxFromGroup:(nonnull BEMCheckBox *)checkBox {
61+
if (![self.checkBoxes containsObject:checkBox]) {
62+
// Not in this group
63+
return;
64+
}
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checkBox.group = nil;
67+
NSMutableOrderedSet *mutableBoxes = [self.checkBoxes mutableCopy];
68+
[mutableBoxes removeObject:checkBox];
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self.checkBoxes = [NSOrderedSet orderedSetWithOrderedSet:mutableBoxes];
70+
}
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#pragma mark Getters
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- (BEMCheckBox *)selectedCheckBox {
75+
BEMCheckBox *selected = nil;
76+
for (BEMCheckBox *checkBox in self.checkBoxes) {
77+
if(checkBox.on){
78+
selected = checkBox;
79+
break;
80+
}
81+
}
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return selected;
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}
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#pragma mark Setters
87+
88+
- (void)setSelectedCheckBox:(BEMCheckBox *)selectedCheckBox {
89+
if (selectedCheckBox) {
90+
for (BEMCheckBox *checkBox in self.checkBoxes) {
91+
BOOL shouldBeOn = (checkBox == selectedCheckBox);
92+
if(checkBox.on != shouldBeOn){
93+
[checkBox _setOn:shouldBeOn animated:YES notifyGroup:NO];
94+
}
95+
}
96+
} else {
97+
// Selection is nil
98+
if(self.mustHaveSelection && [self.checkBoxes count] > 0){
99+
// We must have a selected checkbox, so re-call this method with the first checkbox
100+
self.selectedCheckBox = [self.checkBoxes firstObject];
101+
} else {
102+
for (BEMCheckBox *checkBox in self.checkBoxes) {
103+
BOOL shouldBeOn = NO;
104+
if(checkBox.on != shouldBeOn){
105+
[checkBox _setOn:shouldBeOn animated:YES notifyGroup:NO];
106+
}
107+
}
108+
}
109+
}
110+
}
111+
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- (void)setMustHaveSelection:(BOOL)mustHaveSelection {
113+
_mustHaveSelection = mustHaveSelection;
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115+
// If it must have a selection and we currently don't, select the first box
116+
if (mustHaveSelection && !self.selectedCheckBox) {
117+
self.selectedCheckBox = [self.checkBoxes firstObject];
118+
}
119+
}
120+
121+
#pragma mark Private methods called by BEMCheckBox
122+
123+
- (void)_checkBoxSelectionChanged:(BEMCheckBox *)checkBox {
124+
if ([checkBox on]) {
125+
// Change selected checkbox to this one
126+
self.selectedCheckBox = checkBox;
127+
} else if(checkBox == self.selectedCheckBox) {
128+
// Selected checkbox was this one, clear it
129+
self.selectedCheckBox = nil;
130+
}
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}
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@end

‎README.md

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@@ -23,6 +23,7 @@
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* [**Documentation**](#documentation)
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* [Enabling / Disabling the Checkbox](#enabling--disabling-the-checkbox)
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* [Reloading](#reloading)
26+
* [Group / Radio Button Functionality](#group--radio-button-functionality)
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* [Delegate] (#delegate)
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* [Customization](#customization)
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@@ -116,6 +117,25 @@ Example usage:
116117
[self.myCheckBox reload]
117118
```
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### Group / Radio Button Functionality
121+
**BEMCheckBox**es can be easily grouped together to form radio button functionality. This will automatically manage the state of each checkbox in the group so that only one is selected at a time, and can optionally require that the group has a selection at all times.
122+
123+
```objective-c
124+
self.group = [BEMCheckBoxGroup groupWithCheckBoxes:@[self.checkBox1, self.checkBox2, self.checkBox3]];
125+
self.group.selectedCheckBox = self.checkBox2; // Optionally set which checkbox is pre-selected
126+
self.group.mustHaveSelection = YES; // Define if the group must always have a selection
127+
```
128+
129+
To see which checkbox is selected in that group, just ask for it:
130+
```objective-c
131+
BEMCheckBox *selection = self.group.selectedCheckBox;
132+
```
133+
134+
To manually update the selection for a group, just set it:
135+
```objective-c
136+
self.group.selectedCheckBox = self.checkBox1;
137+
```
138+
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### Delegate
120140
**BEMCheckBox** uses a delegate to receive check box events. The delegate object must conform to the `BEMCheckBoxDelegate` protocol, which is composed of two optional methods:
121141

@@ -184,4 +204,3 @@ The possible values for `onAnimationType` and `offAnimationType`.
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185205
- `BEMAnimationTypeFade`
186206
<p align="left"><img src="http://s24.postimg.org/3n1rre1cx/BEMAnimation_Type_Fade.gif"/></p>
187-

‎Sample Project/CheckBox.xcodeproj/project.pbxproj

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@@ -15,13 +15,17 @@
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5643F13B1CDE724A0020E238 /* BEMAnimationManager.m in Sources */ = {isa = PBXBuildFile; fileRef = C3E837A91BAE3493004576D6 /* BEMAnimationManager.m */; };
1616
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5643F13D1CDE724A0020E238 /* BEMPathManager.m in Sources */ = {isa = PBXBuildFile; fileRef = C3E837AC1BAE35D8004576D6 /* BEMPathManager.m */; };
18+
984F9E0F1DB59228002F746B /* BEMCheckBoxGroup.h in Headers */ = {isa = PBXBuildFile; fileRef = 984F9E0D1DB59228002F746B /* BEMCheckBoxGroup.h */; };
19+
984F9E101DB59228002F746B /* BEMCheckBoxGroup.m in Sources */ = {isa = PBXBuildFile; fileRef = 984F9E0E1DB59228002F746B /* BEMCheckBoxGroup.m */; };
20+
984F9E111DB59228002F746B /* BEMCheckBoxGroup.m in Sources */ = {isa = PBXBuildFile; fileRef = 984F9E0E1DB59228002F746B /* BEMCheckBoxGroup.m */; };
1821
C32537131B9231780059F394 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = C32537121B9231780059F394 /* main.m */; };
1922
C32537161B9231780059F394 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = C32537151B9231780059F394 /* AppDelegate.m */; };
2023
C325371C1B9231780059F394 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = C325371A1B9231780059F394 /* Main.storyboard */; };
2124
C325371E1B9231780059F394 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = C325371D1B9231780059F394 /* Images.xcassets */; };
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C32537211B9231780059F394 /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = C325371F1B9231780059F394 /* LaunchScreen.xib */; };
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C325372D1B9231780059F394 /* CheckBoxTests.m in Sources */ = {isa = PBXBuildFile; fileRef = C325372C1B9231780059F394 /* CheckBoxTests.m */; };
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C39F1AB71BAFEAA400E8A023 /* BEMMainViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = C39F1AB61BAFEAA400E8A023 /* BEMMainViewController.m */; };
28+
C3C066E61DB7002C00178397 /* GroupTests.m in Sources */ = {isa = PBXBuildFile; fileRef = C3C066E51DB7002C00178397 /* GroupTests.m */; };
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C3DFB9BA1BBA475B00D2F8B4 /* AnimationManangerTests.m in Sources */ = {isa = PBXBuildFile; fileRef = C3DFB9B91BBA475B00D2F8B4 /* AnimationManangerTests.m */; };
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C3DFB9BD1BBD0E2800D2F8B4 /* BEMAnimationsTableViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = C3DFB9BC1BBD0E2800D2F8B4 /* BEMAnimationsTableViewController.m */; };
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C3E594901BC220C7005EA38B /* BEMCurrentSetupTableViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = C3E5948F1BC220C7005EA38B /* BEMCurrentSetupTableViewController.m */; };
@@ -70,6 +74,8 @@
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5643F12B1CDE722C0020E238 /* BEMCheckBox.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = BEMCheckBox.framework; sourceTree = BUILT_PRODUCTS_DIR; };
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5643F12D1CDE722C0020E238 /* CheckBox.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = CheckBox.h; sourceTree = "<group>"; };
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5643F12F1CDE722C0020E238 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
77+
984F9E0D1DB59228002F746B /* BEMCheckBoxGroup.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = BEMCheckBoxGroup.h; path = ../Classes/BEMCheckBoxGroup.h; sourceTree = "<group>"; };
78+
984F9E0E1DB59228002F746B /* BEMCheckBoxGroup.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = BEMCheckBoxGroup.m; path = ../Classes/BEMCheckBoxGroup.m; sourceTree = "<group>"; };
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C325370D1B9231780059F394 /* CheckBox.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = CheckBox.app; sourceTree = BUILT_PRODUCTS_DIR; };
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C32537111B9231780059F394 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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C32537121B9231780059F394 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
@@ -85,6 +91,7 @@
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C325373B1B9231FD0059F394 /* BEMCheckBox.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = BEMCheckBox.m; path = ../Classes/BEMCheckBox.m; sourceTree = "<group>"; };
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C39F1AB51BAFEAA400E8A023 /* BEMMainViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BEMMainViewController.h; sourceTree = "<group>"; };
8793
C39F1AB61BAFEAA400E8A023 /* BEMMainViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BEMMainViewController.m; sourceTree = "<group>"; };
94+
C3C066E51DB7002C00178397 /* GroupTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GroupTests.m; sourceTree = "<group>"; };
8895
C3DFB9B91BBA475B00D2F8B4 /* AnimationManangerTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AnimationManangerTests.m; sourceTree = "<group>"; };
8996
C3DFB9BB1BBD0E2800D2F8B4 /* BEMAnimationsTableViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BEMAnimationsTableViewController.h; sourceTree = "<group>"; };
9097
C3DFB9BC1BBD0E2800D2F8B4 /* BEMAnimationsTableViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = BEMAnimationsTableViewController.m; sourceTree = "<group>"; };
@@ -196,6 +203,7 @@
196203
isa = PBXGroup;
197204
children = (
198205
C325372C1B9231780059F394 /* CheckBoxTests.m */,
206+
C3C066E51DB7002C00178397 /* GroupTests.m */,
199207
C3DFB9B91BBA475B00D2F8B4 /* AnimationManangerTests.m */,
200208
C325372A1B9231780059F394 /* Supporting Files */,
201209
);
@@ -219,6 +227,8 @@
219227
C3E837A91BAE3493004576D6 /* BEMAnimationManager.m */,
220228
C3E837AB1BAE35D8004576D6 /* BEMPathManager.h */,
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C3E837AC1BAE35D8004576D6 /* BEMPathManager.m */,
230+
984F9E0D1DB59228002F746B /* BEMCheckBoxGroup.h */,
231+
984F9E0E1DB59228002F746B /* BEMCheckBoxGroup.m */,
222232
);
223233
name = Classes;
224234
sourceTree = "<group>";
@@ -239,6 +249,7 @@
239249
isa = PBXHeadersBuildPhase;
240250
buildActionMask = 2147483647;
241251
files = (
252+
984F9E0F1DB59228002F746B /* BEMCheckBoxGroup.h in Headers */,
242253
5643F1381CDE724A0020E238 /* BEMCheckBox.h in Headers */,
243254
5643F13C1CDE724A0020E238 /* BEMPathManager.h in Headers */,
244255
5643F13A1CDE724A0020E238 /* BEMAnimationManager.h in Headers */,
@@ -408,6 +419,7 @@
408419
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409420
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410421
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422+
984F9E111DB59228002F746B /* BEMCheckBoxGroup.m in Sources */,
411423
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412424
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413425
);
@@ -420,6 +432,7 @@
420432
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421433
C3DFB9BD1BBD0E2800D2F8B4 /* BEMAnimationsTableViewController.m in Sources */,
422434
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435+
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423436
C32537131B9231780059F394 /* main.m in Sources */,
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425438
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@@ -429,6 +442,7 @@
429442
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430443
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431444
files = (
445+
C3C066E61DB7002C00178397 /* GroupTests.m in Sources */,
432446
C325372D1B9231780059F394 /* CheckBoxTests.m in Sources */,
433447
C3DFB9BA1BBA475B00D2F8B4 /* AnimationManangerTests.m in Sources */,
434448
);

‎Sample Project/CheckBox.xcodeproj/project.xcworkspace/xcuserdata/Bobo.xcuserdatad/UserInterfaceState.xcuserstate

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