iOS开发-仿大众点评iPad侧边导航栏
昨天其实已经写了一篇侧边栏的文章，不过感觉还不是很清晰，这篇文章算是补充吧，iPad上看了大众点评的侧边栏，基本上百分之九十类似，具体效果可参考下图:
对比昨天主要做了两个修改，一个是图片和文字的显示位置，另外一个就是关于底部的定位和设置的位置在横竖屏时显示的问题，侧边栏的区域是是自己控制的，需要注意一下横竖屏的时候设置一下autoresizingMask，底部图标定位的时候也是一样设置。
导航栏上每个按钮提取出了一个父类GPDockItem,头文件中的代码:
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//// GPDockItem.h// GrouponProject//博客园FlyElephant:http://www.cnblogs.com/xiaofeixiang// Created by keso on 15/3/11.// Copyright (c) 2015年 keso. All rights reserved.//#import <UIKit/UIKit.h>@interface GPDockItem : UIButton
-(void)imageSetting:(NSString *)backgroundImage selectedImage:(NSString *)selectedImage;
@property (nonatomic,strong) NSString *title;
//背景图片@property (nonatomic,strong) NSString *backgroundImage;
//选中图片@property (nonatomic,strong) NSString *selectedImage;
@end |
相对于之前的代码，主要是添加了设置背景图片和设置选中图片的混合方法，定义了一个Title属性，之后的可以设置文字和图片的位置，重写两个方法:
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//设置图片区域-(CGRect)imageRectForContentRect:(CGRect)contentRect{ CGFloat width=contentRect.size.width;
CGFloat height= contentRect.size.height * 0.7;
return CGRectMake(0, 10, width, height);
}//设置文字区域-(CGRect)titleRectForContentRect:(CGRect)contentRect{ CGFloat width=contentRect.size.width;
CGFloat height= contentRect.size.height * 0.3;
CGFloat position=contentRect.size.height*0.7;
return CGRectMake(0, position, width, height);
} |
设置背景图片和选中图片：
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-(void)imageSetting:(NSString *)backgroundImage selectedImage:(NSString *)selectedImage{
self.backgroundImage=backgroundImage;
self.selectedImage=selectedImage;
} |
设置显示文字和图片在区域内的位置:
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-(void)setTitle:(NSString *)title{
[self setTitle:title forState:UIControlStateNormal];
self.titleLabel.textAlignment=NSTextAlignmentCenter;
self.titleLabel.font = [UIFont systemFontOfSize:15];
//正常状态下是灰色
[self setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
//不可点击的时候切换文字颜色
[self setTitleColor:[UIColor orangeColor] forState:UIControlStateDisabled];
//设置图片属性
self.imageView.contentMode = UIViewContentModeCenter;
} |
GPDockItem.m中的代码:
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//// GPDockItem.m// GrouponProject//博客园FlyElephant:http://www.cnblogs.com/xiaofeixiang// Created by keso on 15/3/11.// Copyright (c) 2015年 keso. All rights reserved.//#import "GPDockItem.h"@implementation GPDockItem
/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect { // Drawing code
}*/-(instancetype)initWithFrame:(CGRect)frame{ self=[super initWithFrame:frame];
// if (self) {//// UIImageView *splitLine = [[UIImageView alloc] init];//// splitLine.frame = CGRectMake(0, 0, GPDockItemWidth, 2);//// splitLine.image = [UIImage imageNamed:@"separator_tabbar_item.png"];//// [self addSubview:splitLine];//// } return self;
}-(void)setTitle:(NSString *)title{
[self setTitle:title forState:UIControlStateNormal];
self.titleLabel.textAlignment=NSTextAlignmentCenter;
self.titleLabel.font = [UIFont systemFontOfSize:15];
//正常状态下是灰色
[self setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
//不可点击的时候切换文字颜色
[self setTitleColor:[UIColor orangeColor] forState:UIControlStateDisabled];
//设置图片属性
self.imageView.contentMode = UIViewContentModeCenter;
}-(void)imageSetting:(NSString *)backgroundImage selectedImage:(NSString *)selectedImage{
self.backgroundImage=backgroundImage;
self.selectedImage=selectedImage;
}//设置背景图片-(void)setBackgroundImage:(NSString *)backgroundImage{
_backgroundImage=backgroundImage;
[self setImage:[UIImage imageNamed:backgroundImage] forState:UIControlStateNormal];
}//设置选中图片-(void)setSelectedImage:(NSString *)selectedImage{
_selectedImage=selectedImage;
[self setImage:[UIImage imageNamed:selectedImage] forState:UIControlStateDisabled];
}//设置图片区域-(CGRect)imageRectForContentRect:(CGRect)contentRect{ CGFloat width=contentRect.size.width;
CGFloat height= contentRect.size.height * 0.7;
return CGRectMake(0, 10, width, height);
}//设置文字区域-(CGRect)titleRectForContentRect:(CGRect)contentRect{ CGFloat width=contentRect.size.width;
CGFloat height= contentRect.size.height * 0.3;
CGFloat position=contentRect.size.height*0.7;
return CGRectMake(0, position, width, height);
}-(void)setFrame:(CGRect)frame{
//固定Item宽高
frame.size=CGSizeMake(GPDockItemWidth, GPDockItemHeight);
[super setFrame:frame];
}@end |
继承自GPDockItem的GPBottomItem,只需要设置横竖屏自动伸缩属性即可:
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//// GPBottomItem.m// GrouponProject// FlyElephant--http://www.cnblogs.com/xiaofeixiang// Created by keso on 15/3/13.// Copyright (c) 2015年 keso. All rights reserved.//#import "GPBottomItem.h"@implementation GPBottomItem
/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect { // Drawing code
}*/-(instancetype)initWithFrame:(CGRect)frame{ self=[super initWithFrame:frame];
if (self) {
// 自动伸缩
self.autoresizingMask=UIViewAutoresizingFlexibleTopMargin;
}
return self;
}@end |
GPDock.h中的定位:
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-(void)addLocation{
GPBottomItem *tabItem=[[GPBottomItem alloc]init];
[tabItem imageSetting:@"Toolbar_switchcity.png" selectedImage:@"Toolbar_switchcity_selected.png"];
CGFloat y = self.frame.size.height - GPDockItemHeight*2-20;
//设置位置
tabItem.frame = CGRectMake(0, y, 0, 0);
[tabItem setTitle:@"北京"];
//设置选中触摸选中事件
[tabItem addTarget:self action:@selector(tabItemTouchEvent:) forControlEvents:UIControlEventTouchDown];
tabItem.tag =4;
[self addSubview:tabItem];
} |
GPDock.h中的设置:
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-(void)addSetting{
GPBottomItem *tabItem=[[GPBottomItem alloc]init];
[tabItem imageSetting:@"Toolbar_setting.png" selectedImage:@"Toolbar_setting_selected.png"];
CGFloat y = self.frame.size.height - GPDockItemHeight-10;
//设置位置
tabItem.frame = CGRectMake(0, y, 0, 0);
[tabItem setTitle:@"设置"];
//设置选中触摸选中事件
[tabItem addTarget:self action:@selector(tabItemTouchEvent:) forControlEvents:UIControlEventTouchDown];
tabItem.tag =5;
[self addSubview:tabItem];
} |
两者有相同之处，分开合并都行，具体看将来要实现的业务逻辑，将其添加到GPDock中:
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-(instancetype)initWithFrame:(CGRect)frame{ self=[super initWithFrame:frame];
if (self) {
//自动伸缩高度可伸缩，右边距可以伸缩
self.autoresizingMask=UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleRightMargin;
//设置背景图片
self.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"Toolbar_bg_tabbar.png"]];
//添加选项卡
[self addTabItems];
//添加设置
[self addLocation];
//添加设置
[self addSetting];
}
return self;
} |
最终实现效果如下:
本文转自Fly_Elephant博客园博客，原文链接：http://www.cnblogs.com/xiaofeixiang/p/4334242.html，如需转载请自行联系原作者