我需要在 a 的左侧显示一个电子邮件地址UIButton,但它被定位到中心。
UIButton
有没有办法将对齐设置为 a 的左侧UIButton?
这是我当前的代码:
UIButton* emailBtn = [[UIButton alloc] initWithFrame:CGRectMake(5,30,250,height+15)]; emailBtn.backgroundColor = [UIColor clearColor]; [emailBtn setTitle:obj2.customerEmail forState:UIControlStateNormal]; emailBtn.titleLabel.font = [UIFont systemFontOfSize:12.5]; [emailBtn setTitleColor:[[[UIColor alloc]initWithRed:0.121 green:0.472 blue:0.823 alpha:1]autorelease] forState:UIControlStateNormal]; [emailBtn addTarget:self action:@selector(emailAction:) forControlEvents:UIControlEventTouchUpInside]; [elementView addSubview:emailBtn]; [emailBtn release];
设置 contentHorizontalAlignment:
emailBtn.contentHorizontalAlignment = .left;
您可能还想调整左插图的内容,否则文本将触及左边框:
emailBtn.contentEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 0); // Swift 3 and up: emailBtn.contentEdgeInsets = UIEdgeInsets(top: 0, left: 10, bottom: 0, right: 0);