替换所有的cell的右侧箭头

写个UITableViewCell的分类重写这个方法

- (void)didMoveToSuperview {
    [super didMoveToSuperview];
    // 全局替换右侧箭头
    if (self.accessoryType == UITableViewCellAccessoryDisclosureIndicator) {
        UIImageView *i = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"btn_enter"]];
        self.accessoryView = i;
    }
    
}