iphone屏幕觸控測試，（轉）iOS 屏幕適配

參考?微信的多屏適配

目前為止，iPhone屏幕尺寸已經有四種：

iphone屏幕觸控測試、3.5（inch）：1/3G/3GS/4/4S

4.0（inch）：5/5S/5C

4.7（inch）：6

屏幕適配怎么調、5.5（inch）：6Plus

看一下iPhone4~6(+)的屏幕高寬比：

iPhone4(s)：分辨率960*640，高寬比1.5?
iPhone5(s)：分辨率1136*640，高寬比1.775?
iPhone6：分辨率1334*750，高寬比1.779?
iPhone6+：分辨率1920*1080，高寬比1.778

ios屏幕適配三種方法。可粗略認為iPhone5(s)、6(+)的高寬比是一致的（16:9），即可以等比例縮放。因此可以按寬度適配：?
fitScreenWidth= width*(SCREEN_WIDTH/320)?
這樣，共有iPhone3/4/5、6、6+三組寬度，在iPhone6、6+下將按比例橫向放大，也就是說我們要適配寬、高、字號大小（如果說Android屏幕適配是地獄一般，那目前來看iPhone屏幕適配還是很美好的）

適配思路

現在產品設計稿有以iPhone5為基準的，也有以iPhone6為基準的，其實沒太大影響，因為iPhone5、6、6P的屏幕尺寸比例幾乎一樣的，所以以iPhone5為基準標注的尺寸，那適配的方法如下：

#define kScreenWidthRatio  (kScreenWidth / 320.0)
#define kScreenHeightRatio (kScreenHeight / 568.0)
#define AdaptedWidthValue(x)  (ceilf((x) * kScreenWidthRatio))
#define AdaptedHeightValue(x) (ceilf((x) * kScreenHeightRatio))

其實就是計算一個比例，然后iPhone6、6P等比放大，這樣就保持了iPhone5、6、6P屏幕視覺效果上的一致了。?
控件尺寸思路搞定了，但僅僅控件等比例拉伸，其中的內容也要去適應，例如UILabel的字體大小適應，其實也很簡單：

#define kUHSystemFontWithSize(R)     [UIFont fontWithName: kULSystemFont size: (AdaptedWidthValue(R))]

實踐?
有了思路之后，實踐一下看看效果，首先看一下最終目標效果圖：?
置頂?
iOS開發~iPhone6及iPhone6P的UI適配

Demo簡介：

1、利用TableView展示數據，其中TableView的headerView是滾動的廣告，整體UI布局使用相對布局（Autolayout）；

2、Autolayout用的是代碼實現方式，借助與第三方庫Masonry；

3、headerView的滾動廣告實現是借助于第三方庫SDCycleScrollView；

4、圖片下載借助與第三方庫SDWebImage；

5、UITableViewCell的自適應高度借助與第三方庫UITableView+FDTemplateLayoutCell實現。

新建項目

使用Xcode新建項目后，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’

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實現TableView?
1、創建TableView，命名為newslistView：

@property (nonatomic, strong) UITableView *newslistView;

具體實現不說了，介紹一下TableView的布局，這里TableView沾滿ViewController的View：?

[self.newslistView mas_makeConstraints:^(MASConstraintMaker *make) { 
make.edges.equalTo(self.view); 
}];

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2、實現TableViewHeader?

- (void) loadTableViewHeaderView { 
SDCycleScrollView * cycleScrollView = [SDCycleScrollView cycleScrollViewWithFrame:CGRectMake(0, 0, kScreenWidth, AdaptedHeightValue(SDCycleScrollViewHeight)) imageURLStringsGroup:nil]; // 模擬網絡延時情景 
cycleScrollView.pageControlAliment = SDCycleScrollViewPageContolAlimentRight; 
cycleScrollView.delegate = self; 
cycleScrollView.showPageControl = YES; 
cycleScrollView.pageControlStyle = SDCycleScrollViewPageContolStyleAnimated; 
cycleScrollView.pageControlAliment = SDCycleScrollViewPageContolAlimentCenter; 
cycleScrollView.dotColor = [UIColor whiteColor]; // 自定義分頁控件小圓標顏色 
cycleScrollView.placeholderImage = [UIImage imageNamed:@”detail_top”]; 
[self.view addSubview:cycleScrollView];cycleScrollView.imageURLStringsGroup = [self.dataDictionary valueForKey:@"advertisement"];self.newslistView.tableHeaderView = cycleScrollView;
}

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這里使用到了 AdaptedHeightValue(SDCycleScrollViewHeight)來適應屏幕尺寸，4/4S設備的TableViewHeader高度就小一些，6和6P的TableViewHeader高度就大一些，因為我們是已5代設備為參考實現的產品設計稿。?
3、實現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

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