JSON转实体：jsonModel https://github.com/icanzilb/JSONModel/美化按键:BButton   https://github.com/mattlawer/BButton状态栏提示：JDStatusBarNotification https://github.com/jaydee3/JDStatusBarNotification照片显示插件:MJPhotoBrowser  https://github.com/azxfire/MJPhotoBrowser在列表行划动显示更多选项：SWTableViewCell   https://github.com/cewendel/swtableviewcell图片查看插件：mwphotobrowser   https://github.com/mwaterfall/mwphotobrowser滚动条插件：asprogresspopupview  https://github.com/alskipp/asprogresspopupview时间处理：nsdate-helper  https://github.com/billymeltdown/nsdate-helper各种进度条：m13progresssuite https://github.com/marxon13/m13progresssuite弹出提示mbprogresshud:  https://github.com/jdg/mbprogresshud

[_headerFansCountBtn setAttributedTitle:[self getStringWithTitle:@"粉丝" andValue:_curUser.fans_count.stringValue] forState:UIControlStateNormal];方法（根据长度来设置其不同的样式显示）：- (NSMutableAttributedString*)getStringWithTitle:(NSString *)title andValue:(NSString *)value{    NSMutableAttributedString *attriString = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@ %@", title, value]];    [attriString addAttributes:@{NSFontAttributeName : [UIFont systemFontOfSize:15],                                 NSForegroundColorAttributeName : [UIColor blackColor]}                         range:NSMakeRange(0, title.length)];        [attriString addAttributes:@{NSFontAttributeName : [UIFont systemFontOfSize:15],                                 NSForegroundColorAttributeName : [UIColor colorWithHexString:@"0x3bbd79"]}                         range:NSMakeRange(title.length+1, value.length)];    return  attriString;}

cell.accessoryType = UITableViewCellAccessoryNone;//cell没有任何的样式  cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;//cell的右边有一个小箭头，距离右边有十几像素；cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;//cell右边有一个蓝色的圆形button； cell.accessoryType = UITableViewCellAccessoryCheckmark;//cell右边的形状是对号； 

a、init初始化不会触发layoutSubviews。b、addSubview会触发layoutSubviews。c、设置view的Frame会触发layoutSubviews，当然前提是frame的值设置前后发生了变化。d、滚动一个UIScrollView会触发layoutSubviews。e、旋转Screen会触发父UIView上的layoutSubviews事件。f、改变一个UIView大小的时候也会触发父UIView上的layoutSubviews事件。g、直接调用setLayoutSubviews。

UIButton *settingBtn = [self navButtonWithImageName:@"settingBtn_Nav" action:@selector(settingBtnClicked:)];    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:settingBtn];        UIButton *addUserBtn = [self navButtonWithImageName:@"addUserBtn_Nav" action:@selector(addUserBtnClicked:)];    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:addUserBtn];

@interface TitleRImageMoreCell ()@property (strong, nonatomic) UILabel *titleLabel;@property (strong, nonatomic) UIImageView *userIconView;@end@implementation TitleRImageMoreCell- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];    if (self) {        // Initialization code        self.accessoryType = UITableViewCellAccessoryDisclosureIndicator;                if (!_titleLabel) {            _titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(kPaddingLeftWidth, ([TitleRImageMoreCell cellHeight] -30)/2, 100, 30)];            _titleLabel.backgroundColor = [UIColor clearColor];            _titleLabel.font = [UIFont systemFontOfSize:16];            _titleLabel.textColor = [UIColor blackColor];            [self.contentView addSubview:_titleLabel];        }        if (!_userIconView) {            _userIconView = [[UIImageView alloc] initWithFrame:CGRectMake((kScreen_Width- kTitleRImageMoreCell_HeightIcon)- kPaddingLeftWidth- 30, ([TitleRImageMoreCell cellHeight] -kTitleRImageMoreCell_HeightIcon)/2, kTitleRImageMoreCell_HeightIcon, kTitleRImageMoreCell_HeightIcon)];            [_userIconView doCircleFrame];            [self.contentView addSubview:_userIconView];        }    }    return self;}- (void)layoutSubviews{    [super layoutSubviews];    if (!_curUser) {        return;    }    self.titleLabel.text = @"头像";    [self.userIconView sd_setImageWithURL:[_curUser.avatar urlImageWithCodePathResizeToView:_userIconView] placeholderImage:kPlaceholderMonkeyRoundView(_userIconView)];}+ (CGFloat)cellHeight{    return 70.0;}@end然后进行调用时（可以属性传值，并在不同的地方加载不同的行及其高度）：- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    if (indexPath.section == 0 && indexPath.row == 0) {        TitleRImageMoreCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier_TitleRImageMore forIndexPath:indexPath];        cell.curUser = _curUser;        [tableView addLineforPlainCell:cell forRowAtIndexPath:indexPath withLeftSpace:kPaddingLeftWidth];        return cell;｝else{TitleValueMoreCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier_TitleValueMore forIndexPath:indexPath];}return cell;｝

[self setImage:[UIImage imageNamed:@"nav_arrow_down"] forState:UIControlStateNormal];self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, DEGREES_TO_RADIANS(180));//这这是进行180度转到，向下或向下

- (UIDownMenuButton *)initWithTitles:(NSArray *)titleList andDefaultIndex:(NSInteger)index andVC:(UIViewController *)viewcontroller{    self = [super init];    if (self) {        _titleList = titleList;        _curIndex = index;        _curShowing = NO;        _mySuperView = viewcontroller.view;                self.backgroundColor = [UIColor clearColor];        [self setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];        [self setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted];        [self.titleLabel setFont:[UIFont systemFontOfSize:kNavTitleFontSize]];        [self.titleLabel setMinimumScaleFactor:0.5];        [self addTarget:self action:@selector(changeShowing) forControlEvents:UIControlEventTouchUpInside];        [self refreshSelfUI];    }    return self;}- (void)refreshSelfUI{    NSString *titleStr = @"";    DownMenuTitle *menuObj = [self.titleList objectAtIndex:self.curIndex];    titleStr = menuObj.titleValue;    CGFloat titleWidth = [titleStr getWidthWithFont:self.titleLabel.font constrainedToSize:CGSizeMake(kScreen_Width, 30)];//获得文字的宽度    CGFloat btnWidth = titleWidth +kNavImageWidth;    self.frame = CGRectMake((kScreen_Width-btnWidth)/2, (44-30)/2, btnWidth, 30);    self.titleEdgeInsets = UIEdgeInsetsMake(0, -kNavImageWidth, 0, kNavImageWidth);    self.imageEdgeInsets = UIEdgeInsetsMake(0, titleWidth, 0, -titleWidth);    [self setTitle:titleStr forState:UIControlStateNormal];    [self setImage:[UIImage imageNamed:@"nav_arrow_down"] forState:UIControlStateNormal];}其中几个值：#define  kNavTitleFontSize 19#define kScreen_Width [UIScreen mainScreen].bounds.size.width#define kNavImageWidth (15.0+5.0)然后直接赋给titleview：    UIDownMenuButton *navBtn = [[UIDownMenuButton alloc] initWithTitles:titleList andDefaultIndex:index andVC:self];    navBtn.menuIndexChanged = block;    self.navigationItem.titleView = navBtn;注意：button都是有带文字跟图片的，只是图片都是在左边，要通过uiedgeinsetsmake对图片跟文字进行位置的改变。可以在导航栏的titleview做文章，放一些其它控件，或视图；

要遵循三个协议：UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout设置单元格的布局UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];[flowLayout setItemSize:CGSizeMake(70, 100)];//设置cell的尺寸[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];//设置其布局方向flowLayout.sectionInset = UIEdgeInsetsMake(5, 5, 5, 5);//设置其边界//其布局很有意思，当你的cell设置大小后，一行多少个cell，由cell的宽度决定然后设置集合视图：_collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 0, 320, self.view.frame.size.height) collectionViewLayout:flowLayout];    _collectionView.dataSource = self;    _collectionView.delegate = self;    _collectionView.backgroundColor = [UIColor clearColor];    [_collectionView registerClass:[BMCollectionCell class] forCellWithReuseIdentifier:CELL_ID];    [self.view addSubview:_collectionView];注意：其它委托事件没全写出,比如numberOfSectionsInCollectionView等；