本文主要是介绍iOS开发~iPhone6及iPhone6P的UI适配,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
概要
目前为止,iPhone屏幕尺寸已经有四种:
3.5(inch):1/3G/3GS/4/4S
4.0(inch):5/5S/5C
4.7(inch):6
5.5(inch):6Plus
看一下iPhone4~6(+)的屏幕高宽比:
iPhone4(s):分辨率960*640,高宽比1.5
iPhone5(s):分辨率1136*640,高宽比1.775
iPhone6:分辨率1334*750,高宽比1.779
iPhone6+:分辨率1920*1080,高宽比1.778
可粗略认为iPhone5(s)、6(+)的高宽比是一致的(16:9),即可以等比例缩放。因此可以按宽度适配:
fitScreenWidth= width*(SCREEN_WIDTH/320)
这样,共有iPhone3/4/5、6、6+三组宽度,在iPhone6、6+下将按比例横向放大,也就是说我们要适配宽、高、字号大小(如果说Android屏幕适配是地狱一般,那目前来看iPhone屏幕适配还是很美好的)
适配思路
现在产品设计稿有以iPhone5为基准的,也有以iPhone6为基准的,其实没太大影响,因为iPhone5、6、6P的屏幕尺寸比例几乎一样的,所以以iPhone5为基准标注的尺寸,那适配的方法如下:
#define kScreenWidthRatio (kScreenWidth / 320.0)
#define kScreenHeightRatio (kScreenHeight / 568.0)
#define AdaptedWidthValue(x) (ceilf((x) * kScreenWidthRatio))
#define AdaptedHeightValue(x) (ceilf((x) * kScreenHeightRatio))
其实就是计算一个比例,然后iPhone6、6P等比放大,这样就保持了iPhone5、6、6P屏幕视觉效果上的一致了。
控件尺寸思路搞定了,但仅仅控件等比例拉伸,其中的内容也要去适应,例如UILabel的字体大小适应,其实也很简单:
#define kUHSystemFontWithSize(R) [UIFont fontWithName: kULSystemFont size: (AdaptedWidthValue(R))]
有了思路之后,实践一下看看效果,首先看一下最终目标效果图:
Demo简介:
1、利用TableView展示数据,其中TableView的headerView是滚动的广告,整体UI布局使用相对布局(Autolayout);
2、Autolayout用的是代码实现方式,借助与第三方库Masonry;
3、headerView的滚动广告实现是借助于第三方库SDCycleScrollView;
4、图片下载借助与第三方库SDWebImage;
5、UITableViewCell的自适应高度借助与第三方库UITableView+FDTemplateLayoutCell实现。
新建项目
使用Xcode新建项目后,由于使用到很多第三方,所以使用CocoPods,其中修改Podfile:
platform :ios, '7.0'
pod 'Masonry'
pod 'SDCycleScrollView'
pod 'UITableView+FDTemplateLayoutCell'
pod 'SDWebImage'
实现TableView
1、创建TableView,命名为newslistView:
@property (nonatomic, strong) UITableView *newslistView;
具体实现不说了,介绍一下TableView的布局,这里TableView沾满ViewController的View:
[self.newslistView mas_makeConstraints:^(MASConstraintMaker *make) {make.edges.equalTo(self.view);}];
2、实现TableViewHeader
- (void) loadTableViewHeaderView {SDCycleScrollView * cycleScrollView = [SDCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 0, kScreenWidth, AdaptedHeightValue(SDCycleScrollViewHeight)) imageURLStringsGroup:nil]; // 模拟网络延时情景cycleScrollView.pageControlAliment = SDCycleScrollViewPageContolAlimentRight;cycleScrollView.delegate = self;cycleScrollView.showPageControl = YES;cycleScrollView.pageControlStyle = SDCycleScrollViewPageContolStyleAnimated;cycleScrollView.pageControlAliment = SDCycleScrollViewPageContolAlimentCenter;cycleScrollView.dotColor = [UIColor whiteColor]; // 自定义分页控件小圆标颜色cycleScrollView.placeholderImage = [UIImage imageNamed:@"detail_top"];[self.view addSubview:cycleScrollView];cycleScrollView.imageURLStringsGroup = [self.dataDictionary valueForKey:@"advertisement"];self.newslistView.tableHeaderView = cycleScrollView;
}
这里使用到了 AdaptedHeightValue ( SDCycleScrollViewHeight )来适应屏幕尺寸,4/4S设备的TableViewHeader高度就小一些,6和6P的TableViewHeader高度就大一些,因为我们是已5代设备为参考实现的产品设计稿。
3、实现TableViewCell
#define UI_DEBUG 0#define ULAppearanceFontSizeMiddle 13
#define ULAppearanceFontSizeSmall 12NSString *const NewsListCellIdentifier = @"NewsListCellIdentifier";static const CGFloat ULNewsListCellNewsimageViewMarginLeft = 10.0;
static const CGFloat ULNewsListCellNewsimageViewWidth = 100.0;
static const CGFloat ULNewsListCellNewsimageViewHeight = 80.0;static const CGFloat ULNewsListCellTitleLabelMarginTop = 10.0;
static const CGFloat ULNewsListCellTitleLabelMarginLeft = 10.0;
static const CGFloat ULNewsListCellTitleLabelMarginRight = 10.0;
static const CGFloat ULNewsListCellTitleLabelHeight = 20.0;static const CGFloat ULNewsListCellContentLabelMarginTop = 10.0;
static const CGFloat ULNewsListCellContentLabelMarginBottom = 10.0;static const CGFloat ULNewsListCellLineViewMarginLeft = 10.0;
static const CGFloat ULNewsListCellLineViewMarginRight = 10.0;
static const CGFloat ULNewsListCellLineViewHeight = 0.5;@interface NewsListCell ()@property (nonatomic, strong) UIImageView *newsImageView;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *contentLabel;
@property (nonatomic, strong) UIView *lineView;@end@implementation NewsListCell- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
#if UI_DEBUGself.contentView.backgroundColor = [UIColor redColor];
#endif[self.contentView addSubview:self.newsImageView];[self.contentView addSubview:self.titleLabel];[self.contentView addSubview:self.contentLabel];[self.contentView addSubview:self.lineView];[self makeConstraintSubviews];}return self;
}- (void) makeConstraintSubviews {[self.newsImageView mas_makeConstraints:^(MASConstraintMaker *make) {make.left.equalTo(self.contentView.mas_left).offset(AdaptedWidthValue(ULNewsListCellNewsimageViewMarginLeft));make.size.mas_equalTo(CGSizeMake(AdaptedWidthValue(ULNewsListCellNewsimageViewWidth), AdaptedHeightValue(ULNewsListCellNewsimageViewHeight)));make.centerY.equalTo(self.contentView.mas_centerY);}];[self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.top.equalTo(self.contentView.mas_top).offset(AdaptedHeightValue(ULNewsListCellTitleLabelMarginTop));make.left.equalTo(self.newsImageView.mas_right).offset(AdaptedWidthValue(ULNewsListCellTitleLabelMarginLeft));make.right.equalTo(self.contentView.mas_right).offset(-AdaptedWidthValue(ULNewsListCellTitleLabelMarginRight));make.height.mas_equalTo(AdaptedHeightValue(ULNewsListCellTitleLabelHeight));
// make.bottom.equalTo(self.contentLabel.mas_top).offset(-AdaptedHeightValue(ULNewsListCellContentLabelMarginTop));}];[self.contentLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.left.right.equalTo(self.titleLabel);make.top.equalTo(self.titleLabel.mas_bottom).offset(AdaptedHeightValue(ULNewsListCellContentLabelMarginTop));make.bottom.equalTo(self.lineView.mas_bottom).offset(-AdaptedHeightValue(ULNewsListCellContentLabelMarginBottom));}];[self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {make.bottom.equalTo(self.contentView.mas_bottom).offset(-ULNewsListCellLineViewHeight);make.left.equalTo(self.contentView.mas_left).offset(AdaptedWidthValue(ULNewsListCellLineViewMarginLeft));make.right.equalTo(self.contentView.mas_right).offset(-AdaptedWidthValue(ULNewsListCellLineViewMarginRight));;make.height.mas_equalTo(ULNewsListCellLineViewHeight);}];
}- (void)configureWithData:(News *) news {[self.newsImageView sd_setImageWithURL:[NSURL URLWithString:news.imageUrl]];self.titleLabel.text = news.title;self.contentLabel.text = news.content;
}#pragma mark - Getters- (UIImageView *) newsImageView {if (!_newsImageView) {_newsImageView = [[UIImageView alloc] init];
#if UI_DEBUG_newsImageView.backgroundColor = [UIColor greenColor];
#endif}return _newsImageView;
}- (UILabel *) titleLabel {if (!_titleLabel) {_titleLabel = [[UILabel alloc] init];_titleLabel.font = kUHSystemFontWithSize(ULAppearanceFontSizeMiddle);_titleLabel.textColor = [UIColor blackColor];#if UI_DEBUG_titleLabel.backgroundColor = [UIColor lightGrayColor];
#endif}return _titleLabel;
}- (UILabel *) contentLabel {if (!_contentLabel) {_contentLabel = [[UILabel alloc] init];_contentLabel.font = kUHSystemFontWithSize(ULAppearanceFontSizeSmall);_contentLabel.textColor = [UIColor grayColor];_contentLabel.numberOfLines = 0;_contentLabel.lineBreakMode = NSLineBreakByWordWrapping;_contentLabel.textAlignment = NSTextAlignmentLeft;#if UI_DEBUG_contentLabel.backgroundColor = [UIColor brownColor];
#endif}return _contentLabel;
}- (UIView *) lineView {if (!_lineView) {_lineView = [[UIView alloc] init];_lineView.backgroundColor = [UIColor lightGrayColor];}return _lineView;
}@end
这样利用尺寸拉伸,并配合Autolayout,就轻松实现了iPhone设备适配。其中Cell高度自动适应请参考 UITableView+FDTemplateLayoutCell第三方库使用方法。
如果不使用Autolayout,而使用Frame方式,这里就不介绍了,还是尽快转向Autolayout吧,还有一些相关内容也很好,想了解可以参考:
http://blog.csdn.net/phunxm/article/details/42174937
http://www.cocoachina.com/ios/20141230/10800.html
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