使用Masonry實現UILabel和UIIMageView自適應長度居中

代碼在github上：demo

先看個效果圖：

主要代碼：

    [self.containerOne mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.mas_equalTo(self.labelTitle.mas_bottom).offset(20);
        make.centerX.mas_equalTo(0);
        make.leading.mas_greaterThanOrEqualTo(5);
        make.trailing.mas_lessThanOrEqualTo(-5);

    }];

    [self.iconOne mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.bottom.equalTo(self.containerOne);
        make.width.mas_equalTo(20);
        make.height.mas_equalTo(20);
        make.centerY.mas_equalTo(0);
        make.left.mas_equalTo(2);

    }];

    [self.labelOne mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.mas_equalTo(self.iconOne.mas_right).offset(5);
        make.centerY.mas_equalTo(0);
        make.right.mas_equalTo(-2);

    }];

爲了實現圖標和文字整體居中，需要將圖標和文字放到一個容器view上進行約束。