#pragma mark - layout subviews
-(void)setupSubviewsConstraints {//(子视图采用横向瀑布流布局）CGFloat margin = 2.5;CGFloat viewHeight = (kFont.pointSize+5) * 2;CGFloat sumWidth = 0;CGFloat limitWidth = kScreenWidth-2*margin;CGFloat viewX = margin;CGFloat viewY = margin;CGFloat row  = 0;for (int i=0 ; i<self.contentArray.count; i++) {//实际宽度CGFloat chineseWidth = [self layoutListNameLength:self.contentArray[i]];CGFloat pinYinWidth = [self layoutListNameLength:self.pinYinArray[i]];CGFloat maxWidth = MAX(chineseWidth, pinYinWidth);//添加容器UIView *containerView = [[UIView alloc] init];[self addSubview:containerView];//添加拼音UILabel *pinYinLabel = [[UILabel alloc] init];pinYinLabel.textColor = [UIColor grayColor];pinYinLabel.font = kFont;pinYinLabel.text = self.pinYinArray[i];pinYinLabel.textAlignment = NSTextAlignmentCenter;[containerView addSubview:pinYinLabel];//添加汉字UILabel *chineseLabel = [[UILabel alloc] init];chineseLabel.textColor = [UIColor blackColor];chineseLabel.font = kFont;chineseLabel.text = self.contentArray[i];chineseLabel.textAlignment = NSTextAlignmentCenter;[containerView addSubview:chineseLabel];//设置约束[containerView mas_makeConstraints:^(MASConstraintMaker *make) {make.height.equalTo(@(viewHeight));make.width.equalTo(@(maxWidth));make.left.equalTo(@(viewX));make.top.equalTo(@(viewY));}];[pinYinLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.left.top.right.equalTo(containerView);make.height.equalTo(containerView.mas_height).multipliedBy(0.5);}];[chineseLabel mas_makeConstraints:^(MASConstraintMaker *make) {make.left.bottom.right.equalTo(containerView);make.height.equalTo(containerView.mas_height).multipliedBy(0.5);}];//计算坐标sumWidth += (maxWidth + margin);if (i < self.contentArray.count-1) {chineseWidth = [self layoutListNameLength:self.contentArray[i+1]];pinYinWidth = [self layoutListNameLength:self.pinYinArray[i+1]];maxWidth = MAX(chineseWidth, pinYinWidth);}if (limitWidth - sumWidth >= maxWidth) {  ///不换行viewX = sumWidth + margin;}else{ ///换行row++;sumWidth = 0;viewX = margin;if (i==self.contentArray.count-1) {row--;}}viewY = (viewHeight + 6*margin)*row + margin;}self.realHeight = viewY + viewHeight + 1.5*margin;
}