自定义UITableViewRowAction样式

在UITableViewCell.m里写以下方法，可遍历出Action的按钮，这里直接当做UIButton去处理了

- (void)layoutSubviews{

[super layoutSubviews];

//遍历子视图，找出左滑按钮

for (UIView *subView in self.subviews)

{

if([subView isKindOfClass:NSClassFromString(@"UITableViewCellDeleteConfirmationView")])

{

for (UIButton *btn in subView.subviews) {

if ([btn isKindOfClass:[UIButton class]]) {

//更改左滑标签按钮样式

if ([btn.titleLabel.text isEqualToString:@"标签"]) {

[btn setTitle:@"" forState:UIControlStateNormal];

[btn setBackgroundImage:[UIImage imageNamed:@"btn_biaoqian"] forState:UIControlStateNormal];

[btn addSubview:self.addLabel];

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

make.centerX.equalTo(0);

make.centerY.equalTo(10);

}];

}else if([btn.titleLabel.text isEqualToString:@"详情"]){

//更改左滑详情按钮样式

[btn setTitle:@"" forState:UIControlStateNormal];

[btn setBackgroundImage:[UIImage imageNamed:@"btn_huadong_xiangqing"] forState:UIControlStateNormal];

[btn addSubview:self.detailLabel];

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

make.centerX.equalTo(0);

make.centerY.equalTo(10);

}];

}

修改btn.titleLabel.frame不起作用，所以我这里采用了自己添加一个label

并且由于此方法会调用多次，导致创建多个label，所以声明了一个label属性