BLSmartLayoutEngine 1.0.2

由 arlin 维护。

您想在 Podfile 中添加以下类似命令：

target 'MyApp' do
  pod 'BLSmartLayoutEngine', '~> 1.0'
end

然后在您的终端内部或从 CocoaPods.app 中运行 pod install 命令。

或者为了测试运行，请运行以下命令

pod try BLSmartLayoutEngine

BLSmartLayoutEngine 1.0.2

由
Arlin

BLSmartLayoutEngine 是一个适用于 iOS 的轻量级布局引擎。

关于

BLSmartLayoutEngine 是一个适用于 iOS 的轻量级布局引擎，以下是我们创建它的原因：

1: 现在人们使用的某些布局引擎，例如自动调整大小、自动布局和 Masonry，比较复杂。

2: BLSmartLayoutEngine 容易学习和使用，与自动布局不同，它不依赖于任何高级系统版本，因此无需考虑系统版本。

3: 在某些场景中，我们可能需要动态地布局 UI。

要求

iOS 7.0 或更高版本

使用

使用水平 (HBox) 布局所有子视图，子视图之间的间距为 20.0 像素

UIView* containterView = [[UIView alloc] init];
containterView.bls_layoutType = BLSmartLayoutTypeHBox;
containterView.bls_spacing = 20.0;
for ( int j = 0; j < 4; j++ )  {
    UIView* subView =[[UIView alloc] init];
    [containterView addSubview:subView];
}

使用垂直 (VBox) 布局所有子视图，子视图之间的间距为 20.0 像素

UIView* containterView = [[UIView alloc] init];
containterView.bls_layoutType = BLSmartLayoutTypeVBox;
containterView.bls_spacing = 20.0;
for ( int j = 0; j < 4; j++ ) {
    UIView* subView =[[UIView alloc] init];
    [containterView addSubview:subView];
}

使用锚点样式布局子视图

UIView* view = [[UIView alloc] init]; 
view.bls_layoutType = BLSmartLayoutTypeAnchor;
BLSmartLayoutAnchorInfo* anchorInfo = nil;

//left-top
UILabel* label = [[UILabel alloc] initWithFrame:CGRectZero];
label.text = @"lt";
label.backgroundColor = [UIColor redColor];
anchorInfo = [[BLSmartLayoutAnchorInfo alloc] init];
anchorInfo.bls_leftAnchor = UIEdgeInsetsMake(0.0, 2.0, 0.0, 0.0);
anchorInfo.bls_topAnchor = UIEdgeInsetsMake(2.0, 0.0, 0.0, 0.0);
anchorInfo.bls_rightAnchor = UIEdgeInsetsMake(0.0, 20.0, 0.0, 0.0);
anchorInfo.bls_bottomAnchor = UIEdgeInsetsMake(22.0, 0.0, 0.0, 0.0);
label.bls_anchorInfo = anchorInfo;
[view addSubview:label];

//right-top
label = [[UILabel alloc] initWithFrame:CGRectZero];
label.text = @"rt";
label.backgroundColor = [UIColor redColor];
anchorInfo = [[BLSmartLayoutAnchorInfo alloc] init];
anchorInfo.bls_leftAnchor = UIEdgeInsetsMake(0.0, 0.0, 0.0, 20.0);
anchorInfo.bls_topAnchor = UIEdgeInsetsMake(2.0, 0.0, 0.0, 0.0);
anchorInfo.bls_rightAnchor = UIEdgeInsetsMake(0.0, 0.0, 0.0, 2.0);
anchorInfo.bls_bottomAnchor = UIEdgeInsetsMake(22.0, 0.0, 0.0, 0.0);
label.bls_anchorInfo = anchorInfo;
[view addSubview:label];

//left-bottom 
label = [[UILabel alloc] initWithFrame:CGRectZero];
label.text = @"lb";
label.backgroundColor = [UIColor redColor];
anchorInfo = [[BLSmartLayoutAnchorInfo alloc] init];
anchorInfo.bls_leftAnchor = UIEdgeInsetsMake(0.0, 2.0, 0.0, 0.0);
anchorInfo.bls_topAnchor = UIEdgeInsetsMake(0.0, 0.0, 22.0, 0.0);
anchorInfo.bls_rightAnchor = UIEdgeInsetsMake(0.0, 20.0, 0.0, 0.0);
anchorInfo.bls_bottomAnchor = UIEdgeInsetsMake(0.0, 0.0, 2.0, 0.0);
label.bls_anchorInfo = anchorInfo;
[view addSubview:label];

//right-bottom
label = [[UILabel alloc] initWithFrame:CGRectZero];
label.text = @"rb";
label.backgroundColor = [UIColor redColor];
anchorInfo = [[BLSmartLayoutAnchorInfo alloc] init];
anchorInfo.bls_leftAnchor = UIEdgeInsetsMake(0.0, 0.0, 0.0, 20.0);
anchorInfo.bls_topAnchor = UIEdgeInsetsMake(0.0, 0.0, 22.0, 0.0);
anchorInfo.bls_rightAnchor = UIEdgeInsetsMake(0.0, 0.0, 0.0, 2.0);
anchorInfo.bls_bottomAnchor = UIEdgeInsetsMake(0.0, 0.0, 2.0, 0.0);
label.bls_anchorInfo = anchorInfo;
[view addSubview:label];

创建自定义布局样式

1: 实现一个继承自 BLSmartLayout 的子类

@interface CustomSmartLayout : BLSmartLayout 
+ (void)bls_layoutViews:(UIView*)superView;
@end

@implementation CustomSmartLayout
+ (void)bls_layoutViews:(UIView*)superView {
    //TODO:layout subviews
}
@end

2: 注册子类

[UIView bls_registLayoutClass:[CustomSmartLayout class] layoutType:BLSmartLayoutTypeUser + 100];

3: 使用新的布局样式

UIView* view = [[UIView alloc] init];
view.bls_layoutType = BLSmartLayoutTypeUser + 100;

查看示例，您会很快找到方法。