一：masonry 基本用法
fistView=[[UIView alloc] init];
fistView.backgroundColor=[UIColor redColor];
[self.view addSubview:fistView];
secondView=[[UIView alloc] init];
secondView.backgroundColor=[UIColor blueColor];
[self.view addSubview:secondView];
threeView=[[UIView alloc] init];
threeView.backgroundColor=[UIColor yellowColor];
[self.view addSubview:threeView];
bottomView=[[UIView alloc] init];
bottomView.backgroundColor=[UIColor grayColor];
[self.view addSubview:bottomView];
基本约束布局代码
#pragma mark -第一种布局方法
-(void)left_top_size_marign{
CGFloat padding =;
CGFloat width=(self.view.bounds.size.width-*padding)/;
[fistView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(padding);
make.top.mas_equalTo(padding);
make.size.mas_equalTo(CGSizeMake(width, ));
}];
[threeView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(padding*+width);
make.top.mas_equalTo(padding);
make.size.mas_equalTo(CGSizeMake(width, ));
}];
[threeView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(padding*+width*);
make.top.mas_equalTo(padding);
make.size.mas_equalTo(CGSizeMake(width, ));
}];
}
二：masonry 相对于子View布局
CGFloat padding =;
CGFloat width=(self.view.bounds.size.width-*padding)/; [fistView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(padding);
make.top.mas_equalTo(padding);
make.size.mas_equalTo(CGSizeMake(width, ));
}]; [secondView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(fistView.mas_right).offset(padding);
make.size.top.mas_equalTo(fistView); }]; [threeView mas_makeConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(secondView.mas_right).offset(padding);
make.size.top.mas_equalTo(secondView); }];
三：masonry内边距布局
//内边距
[paddingView mas_makeConstraints:^(MASConstraintMaker *make) { make.edges.equalTo(fistView).insets(UIEdgeInsetsMake(, , , )); }];
四：UILable 多行布局
lb=[[UILabel alloc] init];
lb.text=@"ication:didReceiveRemoteNotification:fetchCompletionHandler:], but you still need to add remote-notification to the list of your supported";
[self.view addSubview:lb]; --------- //label多行
lb.preferredMaxLayoutWidth=self.view.width-; lb.numberOfLines=;
[lb mas_makeConstraints:^(MASConstraintMaker *make) { make.top.mas_equalTo(bottomView.mas_bottom).offset();
make.left.mas_equalTo();
make.right.mas_equalTo(-); }];
五：masonry动画更新
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
if(flag){
CGFloat padding =;
CGFloat width=(self.view.bounds.size.width-*padding)/;
[fistView mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(padding);
make.top.mas_equalTo(padding);
make.size.mas_equalTo(CGSizeMake(width, ));
}];
}
else{
[fistView mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo();
make.top.mas_equalTo();
make.size.mas_equalTo(CGSizeMake(, ));
}];
}
flag=!flag;
[UIView animateWithDuration:0.25 animations:^{
// [self.view layoutIfNeeded];
} completion:^(BOOL finished) {
}];
}