用xib自定義UIView並在代碼中使用--iOS

首先新建一個空的xib文件:

將size改為freedom:

然后在xib中自定義視圖(添加自己想要的其它視圖):

要寫好約束, 創建一個繼承uiview的類和他關聯,然后就可以調用了.

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //獲得nib視圖數組  

    NSArray *nibContents = [[NSBundle mainBundle] loadNibNamed:@"HeadView" owner:nil options:nil];
    // Find the view among nib contents (not too hard assuming there is only one view in it).
    // 得到最后一個view

    HeadView *headView = [nibContents lastObject];
    headView.frame = CGRectMake(0, 0, 300, 200);
    //headView.backgroundColor = [UIColor blueColor];
    _tableView.tableHeaderView = headView;
}