//
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// LMJNavigationBar.m
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// PLMMPRJK
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//
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// Created by NJHu on 2017/3/31.
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// Copyright © 2017年 GoMePrjk. All rights reserved.
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//
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#import "LMJNavigationBar.h"
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#define kStatusBarHeight [UIApplication sharedApplication].statusBarFrame.size.height
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#define kDefaultNavBarHeight ([UIApplication sharedApplication].statusBarFrame.size.height + 44.0)
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#define kSmallTouchSizeHeight 44.0
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#define kLeftRightViewSizeMinWidth 60.0
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#define kLeftMargin 0.0
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#define kRightMargin 0.0
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#define kNavBarCenterY(H) ((self.frame.size.height - kStatusBarHeight - H) * 0.5 + kStatusBarHeight)
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#define kViewMargin 5.0
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@implementation LMJNavigationBar
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#pragma mark - system
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if (self = [super initWithFrame:frame]) {
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[self setupLMJNavigationBarUIOnce];
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}
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return self;
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}
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- (void)awakeFromNib
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{
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[super awakeFromNib];
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[self setupLMJNavigationBarUIOnce];
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}
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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[self.superview bringSubviewToFront:self];
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self.leftView.frame = CGRectMake(0, kStatusBarHeight, self.leftView.lmj_width, self.leftView.lmj_height);
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self.rightView.frame = CGRectMake(self.lmj_width - self.rightView.lmj_width, kStatusBarHeight, self.rightView.lmj_width, self.rightView.lmj_height);
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self.titleView.frame = CGRectMake(0, kStatusBarHeight + (44.0 - self.titleView.lmj_height) * 0.5, MIN(self.lmj_width - MAX(self.leftView.lmj_width, self.rightView.lmj_width) * 2 - kViewMargin * 2, self.titleView.lmj_width), self.titleView.lmj_height);
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self.titleView.lmj_x = (self.lmj_width * 0.5 - self.titleView.lmj_width * 0.5);
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self.bottomBlackLineView.frame = CGRectMake(0, self.lmj_height, self.lmj_width, 0.5);
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}
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#pragma mark - Setter
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- (void)setTitleView:(UIView *)titleView
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{
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[_titleView removeFromSuperview];
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[self addSubview:titleView];
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_titleView = titleView;
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__block BOOL isHaveTapGes = NO;
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[titleView.gestureRecognizers enumerateObjectsUsingBlock:^(__kindof UIGestureRecognizer * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
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if ([obj isKindOfClass:[UITapGestureRecognizer class]]) {
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isHaveTapGes = YES;
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*stop = YES;
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}
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}];
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if (!isHaveTapGes) {
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UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(titleClick:)];
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[titleView addGestureRecognizer:tap];
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}
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[self layoutIfNeeded];
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}
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- (void)setTitle:(NSMutableAttributedString *)title
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{
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// bug fix
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarTitleView:)] && [self.dataSource lmjNavigationBarTitleView:self]) {
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return;
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}
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/**头部标题*/
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UILabel *navTitleLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, self.lmj_width * 0.4, 44)];
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navTitleLabel.numberOfLines=0;//可能出现多行的标题
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[navTitleLabel setAttributedText:title];
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navTitleLabel.textAlignment = NSTextAlignmentCenter;
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navTitleLabel.backgroundColor = [UIColor clearColor];
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navTitleLabel.userInteractionEnabled = YES;
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navTitleLabel.lineBreakMode = NSLineBreakByClipping;
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self.titleView = navTitleLabel;
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}
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- (void)setLeftView:(UIView *)leftView
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{
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[_leftView removeFromSuperview];
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[self addSubview:leftView];
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_leftView = leftView;
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if ([leftView isKindOfClass:[UIButton class]]) {
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UIButton *btn = (UIButton *)leftView;
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[btn addTarget:self action:@selector(leftBtnClick:) forControlEvents:UIControlEventTouchUpInside];
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}
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[self layoutIfNeeded];
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}
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- (void)setBackgroundImage:(UIImage *)backgroundImage
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{
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_backgroundImage = backgroundImage;
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self.layer.contents = (id)backgroundImage.CGImage;
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}
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- (void)setRightView:(UIView *)rightView
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{
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[_rightView removeFromSuperview];
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[self addSubview:rightView];
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_rightView = rightView;
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if ([rightView isKindOfClass:[UIButton class]]) {
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UIButton *btn = (UIButton *)rightView;
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[btn addTarget:self action:@selector(rightBtnClick:) forControlEvents:UIControlEventTouchUpInside];
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}
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[self layoutIfNeeded];
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}
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- (void)setDataSource:(id<LMJNavigationBarDataSource>)dataSource
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{
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_dataSource = dataSource;
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[self setupDataSourceUI];
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}
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#pragma mark - getter
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- (UIView *)bottomBlackLineView
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{
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if(!_bottomBlackLineView)
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{
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CGFloat height = 0.5;
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UIView *bottomBlackLineView = [[UIView alloc] initWithFrame:CGRectMake(0, self.frame.size.height , self.frame.size.width, height)];
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[self addSubview:bottomBlackLineView];
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_bottomBlackLineView = bottomBlackLineView;
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bottomBlackLineView.backgroundColor = [UIColor lightGrayColor];
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}
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return _bottomBlackLineView;
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}
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#pragma mark - event
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- (void)leftBtnClick:(UIButton *)btn
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{
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if ([self.lmjDelegate respondsToSelector:@selector(leftButtonEvent:navigationBar:)]) {
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[self.lmjDelegate leftButtonEvent:btn navigationBar:self];
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}
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}
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- (void)rightBtnClick:(UIButton *)btn
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{
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if ([self.lmjDelegate respondsToSelector:@selector(rightButtonEvent:navigationBar:)]) {
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[self.lmjDelegate rightButtonEvent:btn navigationBar:self];
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}
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}
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-(void)titleClick:(UIGestureRecognizer*)Tap
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{
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UILabel *view = (UILabel *)Tap.view;
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if ([self.lmjDelegate respondsToSelector:@selector(titleClickEvent:navigationBar:)]) {
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[self.lmjDelegate titleClickEvent:view navigationBar:self];
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}
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}
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#pragma mark - custom
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- (void)setupDataSourceUI
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{
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/** 导航条的高度 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationHeight:)]) {
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self.lmj_size = CGSizeMake(kScreenWidth, [self.dataSource lmjNavigationHeight:self]);
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}else
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{
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self.lmj_size = CGSizeMake(kScreenWidth, kDefaultNavBarHeight);
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}
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/** 是否显示底部黑线 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationIsHideBottomLine:)]) {
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if ([self.dataSource lmjNavigationIsHideBottomLine:self]) {
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self.bottomBlackLineView.hidden = YES;
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}
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}
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/** 背景图片 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarBackgroundImage:)]) {
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self.backgroundImage = [self.dataSource lmjNavigationBarBackgroundImage:self];
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}
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/** 背景色 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBackgroundColor:)]) {
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self.backgroundColor = [self.dataSource lmjNavigationBackgroundColor:self];
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}
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/** 导航条中间的 View */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarTitleView:)]) {
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self.titleView = [self.dataSource lmjNavigationBarTitleView:self];
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}else if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarTitle:)])
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{
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/**头部标题*/
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self.title = [self.dataSource lmjNavigationBarTitle:self];
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}
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/** 导航条的左边的 view */
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/** 导航条左边的按钮 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarLeftView:)]) {
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self.leftView = [self.dataSource lmjNavigationBarLeftView:self];
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}else if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarLeftButtonImage:navigationBar:)])
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{
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UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, kSmallTouchSizeHeight, kSmallTouchSizeHeight)];
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btn.titleLabel.font = [UIFont systemFontOfSize:16];
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UIImage *image = [self.dataSource lmjNavigationBarLeftButtonImage:btn navigationBar:self];
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if (image) {
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[btn setImage:image forState:UIControlStateNormal];
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}
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self.leftView = btn;
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}
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/** 导航条右边的 view */
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/** 导航条右边的按钮 */
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if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarRightView:)]) {
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self.rightView = [self.dataSource lmjNavigationBarRightView:self];
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}else if ([self.dataSource respondsToSelector:@selector(lmjNavigationBarRightButtonImage:navigationBar:)])
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{
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UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, kLeftRightViewSizeMinWidth, kSmallTouchSizeHeight)];
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btn.titleLabel.font = [UIFont systemFontOfSize:16];
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UIImage *image = [self.dataSource lmjNavigationBarRightButtonImage:btn navigationBar:self];
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if (image) {
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[btn setImage:image forState:UIControlStateNormal];
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}
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self.rightView = btn;
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}
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}
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- (void)setupLMJNavigationBarUIOnce
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{
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self.backgroundColor = [UIColor whiteColor];
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}
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@end
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