Masonry基本参数
// mas_equalTo 会对参数进行包
// equalTo 不会对参数进行包装
// mas_equalTo可以使用
若想使equalTo和 equalTo有等同的效果，可以导入这两个宏
//加上这个宏，mas_equalto，equalto相同
#define MAS_SHORTHAND
//该宏会自动包装
#define MAS_SHORTHAND_GLOBALS
//这个方法只会添加新的约束
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
}];
//这个将会将以前的约束删掉，添加新的
[blueView mas_remakeConstraints:^(MASConstraintMaker *make) {
}];
//这个方法将会覆盖以前的某些特定的约束
[blueView mas_updateConstraints:^(MASConstraintMaker *make) {
}];
做出这样的效果图可以使用这些方法进行实现，相同的效果不同表现形式。可以有很多表现形式，只列出以下几种。
// ################ Method1############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.width.equalTo(@100);
make.height.equalTo(@100);
make.right.equalTo(self.view.mas_right).offset(-20);
make.bottom .equalTo(self.view.mas_bottom).offset(-20);
}];
// ################ Method2############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.width.mas_equalTo(100); // mas_equalTo 自动包装
make.height.mas_equalTo(100);
make.right.equalTo(self.view).offset(-20);
make.bottom .equalTo(self.view).offset(-20);
}];
// ################ Method3############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.width.height.mas_equalTo(100); // mas_equalTo
make.right.equalTo(self.view).offset(-20);
make.bottom .equalTo(self.view).offset(-20);
}];
// ################ Method4############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.size.mas_equalTo(CGSizeMake(100, 100));
make.right.equalTo(self.view).offset(-20);
make.bottom .equalTo(self.view).offset(-20);
}];
// ################ Method5############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.size.mas_equalTo(CGSizeMake(100, 100));
make.right.offset(-20); //默认是父控件
make.bottom.offset(-20);
}];
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.size.mas_equalTo(self.view).multipliedBy(0.5).offset(-50);//按比例计算
make.right.offset(-20); //默认是父控件
make.bottom.offset(-20);
}];
//蓝色
UIView *blueView = [[UIView alloc]init];
blueView.backgroundColor = [UIColor blueColor];
[self.view addSubview:blueView];
//红色
UIView *redView = [[UIView alloc]init];
redView.backgroundColor = [UIColor redColor];
[self.view addSubview:redView];
CGFloat margin = 20;
CGFloat height = 40;
// ################ Method1############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(self.view.left).offset(margin);
make.right.equalTo(redView.left).offset(-margin);
make.bottom.equalTo(self.view.bottom).offset(-margin);
make.height.equalTo(height);
make.width.equalTo(blueView.width);
}];
[redView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(blueView.right).offset(margin);
make.right.equalTo(self.view.right).offset(-margin);
make.bottom.equalTo(self.view.bottom).offset(-margin);
make.height.equalTo(height);
make.width.equalTo(blueView.width);
}];
// ################ Method2############################
[blueView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.equalTo(self.view.left).offset(margin);
make.right.equalTo(redView.left).offset(-margin);
make.bottom.equalTo(self.view.bottom).offset(-margin);
make.height.equalTo(height);
make.top.equalTo(redView.top);
make.bottom.equalTo(redView.bottom);
make.width .equalTo(redView.width);
}];
[redView mas_makeConstraints:^(MASConstraintMaker *make) {
make.right.equalTo(self.view.right).offset(-margin);
}];
