button 图片居右文字居左

• 默认button中的图片是左文字是右 最终想要的是这样

[self.phoneLoginBtn setTitleEdgeInsets:UIEdgeInsetsMake(0,-self.phoneLoginBtn.imageView.size.width, 0, self.phoneLoginBtn.imageView.size.width)];

 [self.phoneLoginBtn setImageEdgeInsets:UIEdgeInsetsMake(0, self.phoneLoginBtn.titleLabel.bounds.size.width, 0, -self.phoneLoginBtn.titleLabel.bounds.size.width)];

05.png

• 原始图片是这样的：

01.png

· 当如下设置时：效果是这样的

• 02 向左40 等价于向右-40

// 02 向左40
    [self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, 40, 0, 0)];
// 向右-40
     [self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, -40)];
// 
   [self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, 20, 0, -20)];

![Uploading 03_421791.png . . .]

• 03 向右40 等价于向左-40

// 03 向右40
 [self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, 40)];

 [self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, -40, 0, 0)];
[self.myButton setImageEdgeInsets:UIEdgeInsetsMake(0, -20, 0, 20)];

03.png

04.png

• 也就是最终我们希望图片上下位置不变top = 0, bottom = 0;向右位移一个label的宽度

同时标题上下位置不变top = 0, bottom = 0;向左位移一个图片的宽度

即 imageEdgeInsets = UIEdgeInsetsMake(0,0 + labelWidth,0,0 - labelWidth); 图片相对初始状态左边距加了labelWidth，右边减labelWidth，以及titleEdgeInsets ＝ UIEdgeInsetsMake(0,0 - imageViewWidth,0, 0 + imageViewWidth);

2. button自定义 重写layoutSubviews方法

- (void)layoutSubviews
{
    [super layoutSubviews];
    
    // 调整图片
    self.imageView.x = 0;
    self.imageView.y = 0;
    self.imageView.width = self.width;
    self.imageView.height = self.imageView.width;
    
    // 调整文字
    self.titleLabel.x = 0;
    self.titleLabel.y = self.imageView.height;
    self.titleLabel.width = self.width;
    self.titleLabel.height = self.height - self.titleLabel.y;
}

stringByAppendingPathComponent --后面默认拼接路径 /

    NSString *str = @"hehe";
    
    NSString *new = [str stringByAppendingPathComponent:@"nicai"];
    // log --->  new----hehe/nicai
    NSString *new2 = [str stringByAppendingString:@"nicai"];
    // log ---> new----hehenicai

IOS MJExtension 关键字替换

[XMGVideosetupReplacedKeyFromPropertyName:^NSDictionary*{

return@{@"ID":@"id"};

}];