395 lines
16 KiB
Objective-C
395 lines
16 KiB
Objective-C
//
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// TabBarPicker.m
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// Pods
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//
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// Created by Giuseppe Nucifora on 15/07/15.
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//
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//
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#import "TabBarPicker.h"
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#import <PureLayout/PureLayout.h>
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#import "TabBarPickerSubItemsView.h"
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#import "MMCPSScrollView.h"
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#import <UIView-Overlay/UIView+Overlay.h>
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#import "NSString+HexColor.h"
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@interface TabBarPicker() <TabBarPickerSubItemsViewDelegate,TabBarItemDelegate>
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@property (nonatomic) UIDeviceOrientation orientation;
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@property (nonatomic, strong) NSMutableArray *subItemSelectors;
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@property (nonatomic, strong) NSMutableArray *subItemSelectorsConstraints;
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@property (nonatomic) BOOL isShow;
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@property (nonatomic, assign) BOOL didSetupConstraints;
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@property (nonatomic, strong) NSLayoutConstraint *showConstraint;
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@property (nonatomic, strong) NSLayoutConstraint *hideConstraint;
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@property (nonatomic, strong) NSMutableArray *tabBarItemsConstraints;
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@property (nonatomic, strong) TabBarItem *selectedTabBarItem;
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@property (nonatomic, strong) MMCPSScrollView *subItemScrollView;
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@end
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@implementation TabBarPicker
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- (instancetype) initWithTabBarItems:(NSArray *) items forPosition:(TabBarPickerPosition) position {
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return [self initWithTabBarItems:items withTabBarSize:CGSizeZero forPosition:position andNSLayoutRelation:NSLayoutRelationEqual];
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}
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- (instancetype) initWithTabBarItems:(NSArray *) items forPosition:(TabBarPickerPosition) position andNSLayoutRelation:(NSLayoutRelation) relation {
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return [self initWithTabBarItems:items withTabBarSize:CGSizeZero forPosition:position andNSLayoutRelation:relation];
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}
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- (instancetype) initWithTabBarItems:(NSArray*) items withTabBarSize:(CGSize) size forPosition:(TabBarPickerPosition) position andNSLayoutRelation:(NSLayoutRelation) relation {
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self = [self initForAutoLayout];
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if (self) {
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_itemSpacing = 10;
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_layoutRelation = relation;
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_position = position;
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_dimWhenShow = YES;
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_subItemSelectors = [[NSMutableArray alloc] init];
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_tabBarItemsConstraints = [[NSMutableArray alloc] init];
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_subItemSelectorsConstraints = [[NSMutableArray alloc] init];
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_dimColor = [[@"333333" colorFromHex] colorWithAlphaComponent: 0.5];
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[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
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[[NSNotificationCenter defaultCenter] addObserver: self selector:@selector(deviceOrientationDidChange:) name:UIDeviceOrientationDidChangeNotification object: nil];
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NSAssert(items, @"TabBar Items array cannot be nil!");
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if (CGSizeEqualToSize(size, CGSizeZero)) {
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_tabBarSize = CGSizeMake([[UIScreen mainScreen] bounds].size.width, 44);
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}
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_tabBarItems = [[NSMutableArray alloc] init];
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for (NSObject *item in items) {
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if (item && [item isKindOfClass:[TabBarItem class]]) {
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[_tabBarItems addObject:item];
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[(TabBarItem*)item setDelegate:self];
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[self addSubview:item];
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}
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}
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_subItemScrollView = [[MMCPSScrollView alloc] initForAutoLayout];
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[_subItemScrollView setType:MMCPSScrollHorizontal];
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[_subItemScrollView setMMCPSDelegate:self];
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[_subItemScrollView setPagingEnabled:YES];
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[_subItemScrollView setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight];
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[self addSubview:_subItemScrollView];
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if ([_tabBarItems count] > 0) {
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int i = 0;
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for (TabBarItem *item in _tabBarItems) {
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TabBarPickerSubItemsView *subItemSelector = [[TabBarPickerSubItemsView alloc] init];
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[subItemSelector setDelegate:self];
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switch (i) {
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case 0:
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[subItemSelector setBackgroundColor:[UIColor lightGrayColor]];
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break;
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case 1:{
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[subItemSelector setBackgroundColor:[UIColor redColor]];
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}
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break;
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case 2:{
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[subItemSelector setBackgroundColor:[UIColor greenColor]];
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}
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break;
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case 3: {
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[subItemSelector setBackgroundColor:[UIColor yellowColor]];
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}
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break;
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default:{
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[subItemSelector setBackgroundColor:[UIColor blueColor]];
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}
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break;
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}
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i++;
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[_subItemScrollView addSubview:subItemSelector];
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[_subItemSelectors addObject:subItemSelector];
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}
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[_subItemScrollView setPageSize:1];
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}
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}
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[self updateConstraintsIfNeeded];
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return self;
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}
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- (void) layoutSubviews {
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if (!_didSetupConstraints) {
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switch (_position) {
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case TabBarPickerPositionLeft:{
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[self autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:20];
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[self autoPinEdgeToSuperviewEdge:ALEdgeLeft withInset:0];
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[self autoSetDimension:ALDimensionWidth toSize:44];
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[self autoMatchDimension:ALDimensionHeight toDimension:ALDimensionHeight ofView:self.superview withOffset:0 relation:_layoutRelation];
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[self autoAlignAxisToSuperviewMarginAxis:ALAxisHorizontal];
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[_tabBarItems autoSetViewsDimension:ALDimensionWidth toSize:44.0];
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[_tabBarItems autoDistributeViewsAlongAxis:ALAxisVertical alignedTo:ALAttributeVertical withFixedSpacing:_itemSpacing insetSpacing:YES matchedSizes:YES];
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[[_tabBarItems firstObject] autoAlignAxisToSuperviewAxis:ALAxisVertical];
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}
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break;
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case TabBarPickerPositionRight:{
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[self autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:20];
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[self autoPinEdgeToSuperviewEdge:ALEdgeRight withInset:0];
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[self autoSetDimension:ALDimensionWidth toSize:44];
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[self autoMatchDimension:ALDimensionHeight toDimension:ALDimensionHeight ofView:self.superview withOffset:0 relation:_layoutRelation];
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[self autoAlignAxisToSuperviewMarginAxis:ALAxisHorizontal];
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[_tabBarItems autoSetViewsDimension:ALDimensionWidth toSize:44.0];
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[_tabBarItems autoDistributeViewsAlongAxis:ALAxisVertical alignedTo:ALAttributeVertical withFixedSpacing:_itemSpacing insetSpacing:YES matchedSizes:YES];
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[[_tabBarItems firstObject] autoAlignAxisToSuperviewAxis:ALAxisVertical];
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}
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break;
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case TabBarPickerPositionTop:{
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[self autoPinEdgeToSuperviewMargin:ALEdgeTop];
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[self autoSetDimension:ALDimensionHeight toSize:44];
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[self autoMatchDimension:ALDimensionWidth toDimension:ALDimensionWidth ofView:self.superview withOffset:0 relation:_layoutRelation];
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[self autoAlignAxisToSuperviewMarginAxis:ALAxisVertical];
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[_tabBarItems autoSetViewsDimension:ALDimensionHeight toSize:44.0];
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[_tabBarItems autoDistributeViewsAlongAxis:ALAxisHorizontal alignedTo:ALAttributeHorizontal withFixedSpacing:_itemSpacing insetSpacing:YES matchedSizes:YES];
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[[_tabBarItems firstObject] autoAlignAxisToSuperviewAxis:ALAxisHorizontal];
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}
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break;
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case TabBarPickerPositionBottom:
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default:{
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_hideConstraint = [self autoPinEdgeToSuperviewMargin:ALEdgeBottom];
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[self autoSetDimension:ALDimensionHeight toSize:44];
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[self autoMatchDimension:ALDimensionWidth toDimension:ALDimensionWidth ofView:self.superview withOffset:0 relation:_layoutRelation];
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[self autoAlignAxisToSuperviewMarginAxis:ALAxisVertical];
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[_tabBarItems autoSetViewsDimension:ALDimensionHeight toSize:44.0];
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[[_tabBarItems firstObject] autoAlignAxisToSuperviewAxis:ALAxisHorizontal];
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[_tabBarItemsConstraints addObjectsFromArray:[_tabBarItems autoDistributeViewsAlongAxis:ALAxisHorizontal alignedTo:ALAttributeHorizontal withFixedSpacing:_itemSpacing insetSpacing:YES matchedSizes:YES]];
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[_subItemScrollView autoMatchDimension:ALDimensionWidth toDimension:ALDimensionWidth ofView:self];
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[_subItemScrollView autoSetDimension:ALDimensionHeight toSize:343];
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[_subItemScrollView autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:[_tabBarItems firstObject]];
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[_subItemScrollView autoAlignAxisToSuperviewAxis:ALAxisVertical];
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//[_subItemScrollView setPageSize:343];
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[_subItemScrollView setSegmentSize:[[UIScreen mainScreen] bounds].size.width];
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[_subItemSelectors autoDistributeViewsAlongAxis:ALAxisHorizontal alignedTo:ALAttributeHorizontal withFixedSpacing:0 insetSpacing:YES matchedSizes:YES];
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[_subItemSelectors autoSetViewsDimension:ALDimensionHeight toSize:343];
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[_subItemSelectors autoSetViewsDimension:ALDimensionWidth toSize:[[UIScreen mainScreen] bounds].size.width];
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[[_subItemSelectors firstObject] autoAlignAxisToSuperviewAxis:ALAxisHorizontal];
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[_subItemScrollView setContentSize:CGSizeMake([_subItemSelectors count]*[[UIScreen mainScreen] bounds].size.width , 343)];
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}
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break;
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}
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_didSetupConstraints = YES;
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[self updateConstraintsIfNeeded];
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}
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}
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- (void) setPosition:(TabBarPickerPosition)position {
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_position = position;
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if (self.superview) {
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[self layoutSubviews];
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}
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}
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- (void)deviceOrientationDidChange:(NSNotification *)notification {
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//Obtain current device orientation
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_orientation = [[UIDevice currentDevice] orientation];
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}
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- (void) addItem:(TabBarItem*) item {
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if (item && [item isKindOfClass:[TabBarItem class]]) {
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[_tabBarItems addObject:item];
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[item setDelegate:self];
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[self addSubview:item];
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[_tabBarItemsConstraints autoRemoveConstraints];
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[_tabBarItemsConstraints addObjectsFromArray:[_tabBarItems autoDistributeViewsAlongAxis:ALAxisHorizontal alignedTo:ALAttributeHorizontal withFixedSpacing:_itemSpacing insetSpacing:YES matchedSizes:YES]];
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}
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}
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- (void) selectItem:(NSInteger) itemIndex {
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if ([_tabBarItems count] > itemIndex) {
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[(TabBarItem*)[_tabBarItems objectAtIndex:itemIndex] setHighlighted:YES];
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}
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[self show];
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}
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- (void) show {
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if (!_isShow) {
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_isShow = YES;
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[self setNeedsUpdateConstraints];
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[self updateConstraintsIfNeeded];
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[UIView animateWithDuration:1.5
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delay:0.0
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usingSpringWithDamping:1
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initialSpringVelocity:0
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options:0
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animations:^{
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if (_dimWhenShow) {
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[self.superview ag_addOverlayWithColor:_dimColor];
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self.layer.zPosition = 999;
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}
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switch (_position) {
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case TabBarPickerPositionLeft: {
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break;
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}
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case TabBarPickerPositionRight: {
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break;
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}
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case TabBarPickerPositionTop: {
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break;
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}
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case TabBarPickerPositionBottom:
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default: {
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[_hideConstraint autoRemove];
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_showConstraint = [self autoPinEdgeToSuperviewEdge:ALEdgeBottom withInset:_subItemScrollView.frame.size.height];
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break;
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}
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}
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[self layoutIfNeeded];
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}
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completion:^(BOOL finished) {
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// Run the animation again in the other direction
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}];
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}
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}
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- (void) hide {
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if (_isShow) {
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_isShow = NO;
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[self setNeedsUpdateConstraints];
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[self updateConstraintsIfNeeded];
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[UIView animateWithDuration:1.5
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delay:0.0
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usingSpringWithDamping:1
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initialSpringVelocity:0
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options:0
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animations:^{
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if (_dimWhenShow) {
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[self.superview ag_removeOverlay];
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self.layer.zPosition = 0;
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}
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switch (_position) {
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case TabBarPickerPositionLeft: {
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break;
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}
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case TabBarPickerPositionRight: {
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break;
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}
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case TabBarPickerPositionTop: {
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break;
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}
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case TabBarPickerPositionBottom:
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default: {
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[_showConstraint autoRemove];
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_hideConstraint = [self autoPinEdgeToSuperviewMargin:ALEdgeBottom];
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break;
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}
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}
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[self layoutIfNeeded];
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}
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completion:^(BOOL finished) {
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// Run the animation again in the other direction
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}];
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}
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}
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#pragma mark TabBarPickerSubItemsViewDelegate
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- (void) tabarPickerSubItemsView:(TabBarPickerSubItemsView*) tabarPickerSubItemsView didSelect:(TabBarItem*) item {
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}
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#pragma mark -
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#pragma mark TabBarItemDelegate
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- (void) tabBarItemSelected:(TabBarItem *)selectedItem {
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for (TabBarItem *item in _tabBarItems) {
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if (![item isEqual:selectedItem]) {
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[item setHighlighted:NO];
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}
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}
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if (!_isShow) {
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[self show];
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}
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else {
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if(![_selectedTabBarItem isEqual:selectedItem]) {
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}
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}
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_selectedTabBarItem = selectedItem;
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[_subItemScrollView scrollToPage:[_tabBarItems indexOfObject:_selectedTabBarItem]];
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}
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#pragma mark -
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#pragma mark MMCPSScrollViewDelegate
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- (void)scrollView:(MMCPSScrollView *)scrollView didScrollToPage:(NSUInteger)pageIndex {
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NSLog(@"The MMCPSScrollView is now on page %i.", pageIndex);
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}
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- (void)scrollView:(MMCPSScrollView *)scrollView willScrollToPage:(NSUInteger)pageIndex {
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NSLog(@"The MMCPSScrollView is now going to page %i.", pageIndex);
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}
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#pragma mark -
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@end
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