UIStackView

既要温故又要知新...温故而知新,我懂.

在Cocoachina上看到了,UIStackView. 没用过额,试iOS9的新特性.一研究,妈的还挺眼熟.一想,这不和Android上的线性布局一样么..这Android上都用了多少年的东西了.起码我鼓捣基于Android 2.3 SDK的时候有了,详细的就不离题了..

    UILabel *InView1 = [UILabel new];

    InView1.text = @"View1";

    InView1.backgroundColor = [UIColor lightGrayColor];

    NSData * tempArchive = [NSKeyedArchiver archivedDataWithRootObject:InView1];

    UILabel *InView2 = [NSKeyedUnarchiver unarchiveObjectWithData:tempArchive];

    InView2.text = @"View2";

    InView2.backgroundColor = [UIColor grayColor];

    UILabel *InView3 = [NSKeyedUnarchiver unarchiveObjectWithData:tempArchive];

    InView3.text = @"View3";

    InView3.backgroundColor = [UIColor darkGrayColor];

    UIStackView *usv = [[UIStackView alloc] initWithFrame:CGRectMake(,self.view.bounds.size.height/-, self.view.bounds.size.width, )];

    //UILayoutConstraintAxisHorizontal,UILayoutConstraintAxisVertical (水平/垂直)

    usv.axis = UILayoutConstraintAxisHorizontal;

    //对齐基线

    usv.alignment = UIStackViewAlignmentFill;

    //填充方式

    usv.distribution = UIStackViewDistributionFillEqually;

    //间距

    usv.spacing = 1.0f;

    [self.view addSubview:usv];

    [usv addArrangedSubview:InView1];

    [usv addArrangedSubview:InView2];

    [usv addArrangedSubview:InView3];

东西是好东西,不过IOS9+,大面积应用的话,少说起码得一年后吧..