参考 微信的多屏适配
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))]
实践
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:
置顶
iOS开发~iPhone6及iPhone6P的UI适配
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 12 NSString *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_DEBUG self.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