最近項目做了閑着沒事，然后就針對項目的小功能封裝一些常用的小控件，個人認為對於一般的app還是比較實用一點，button的image和lable可以在layoutSubviews自定義它們的位置，直接上代碼：
ps：簡的的用法
#import "ViewController.h"
#import "YMTestButton.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
/* 按鈕 */
YMTestButton *button = [[YMTestButton alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
button.backgroundColor = [UIColor greenColor];
[button setImage:[UIImage imageNamed:@"tabbar_huipin_selected@3x.png"] forState:UIControlStateNormal];
[button setTitle:@"我是測試" forState:UIControlStateNormal];
[self.view addSubview:button];
}
@end
ps：這是繼承UIButton
#import <UIKit/UIKit.h>
@interface YMTestButton : UIButton
@end
ps：下面我寫了三種情況，代碼都附上
#import "YMTestButton.h"
#import "UIView+YMExtension.h"
@implementation YMTestButton
- (instancetype)initWithFrame:(CGRect)frame
{
if ([super initWithFrame:frame]) {
self.titleLabel.textAlignment = NSTextAlignmentCenter;
}
return self;
}
- (void)layoutSubviews
{
[super layoutSubviews];
self.imageView.ym_y = self.ym_height * 0.5 - self.imageView.ym_height;
self.imageView.ym_x = self.ym_width * 0.5 - self.imageView.ym_width * 0.5;
self.titleLabel.ym_y = self.imageView.ym_bottom + 10;
self.titleLabel.ym_x = 0;
self.titleLabel.ym_width = self.ym_width;
}
@end
#import "YMTestButton.h"
#import "UIView+YMExtension.h"
@implementation YMTestButton
- (instancetype)initWithFrame:(CGRect)frame
{
if ([super initWithFrame:frame]) {
self.titleLabel.textAlignment = NSTextAlignmentCenter;
}
return self;
}
- (void)layoutSubviews
{
[super layoutSubviews];
self.titleLabel.ym_y = self.ym_height * 0.5 - self.titleLabel.ym_height;
self.titleLabel.ym_x = 0;
self.titleLabel.ym_width = self.ym_width;
self.imageView.ym_y = self.titleLabel.ym_bottom + 10;
self.imageView.ym_x = self.ym_width * 0.5 - self.imageView.ym_width * 0.5;
}
@end
#import "YMTestButton.h"
#import "UIView+YMExtension.h"
@implementation YMTestButton
- (instancetype)initWithFrame:(CGRect)frame
{
if ([super initWithFrame:frame]) {
self.titleLabel.textAlignment = NSTextAlignmentCenter;
}
return self;
}
- (void)layoutSubviews
{
[super layoutSubviews];
self.titleLabel.ym_y = self.ym_height * 0.5 - self.titleLabel.ym_height;
self.titleLabel.ym_x = 0;
self.imageView.ym_x = self.titleLabel.ym_right + 5;
self.imageView.ym_y = self.titleLabel.ym_bottom + 10;
}
@end
ps:UIView+YMExtension.h這是參考MJ大神的（根據自己項目修改）
#import <UIKit/UIKit.h>
@interface UIView (YMExtension)
/* 控件的size */
@property (nonatomic, assign) CGSize ym_size;
/* 控件的寬度 */
@property (nonatomic, assign) CGFloat ym_width;
/* 控件的高度 */
@property (nonatomic, assign) CGFloat ym_height;
/* 控件的x值 */
@property (nonatomic, assign) CGFloat ym_x;
/* 控件的y值 */
@property (nonatomic, assign) CGFloat ym_y;
/* 控件的中心x值 */
@property (nonatomic, assign) CGFloat ym_centerX;
/* 控件的中心Y值 */
@property (nonatomic, assign) CGFloat ym_centerY;
/* 控制件的右邊 */
@property (nonatomic, assign) CGFloat ym_right;
/* 控件的底部 */
@property (nonatomic, assign) CGFloat ym_bottom;
@end
#import "UIView+YMExtension.h"
@implementation UIView (YMExtension)
- (CGSize)ym_size
{
return self.frame.size;
}
- (void)setYm_size:(CGSize)ym_size
{
CGRect frame = self.frame;
frame.size = ym_size;
self.frame = frame;
}
- (CGFloat)ym_width
{
return self.frame.size.width;
}
- (void)setYm_width:(CGFloat)ym_width
{
CGRect frame = self.frame;
frame.size.width = ym_width;
self.frame = frame;
}
- (CGFloat)ym_height
{
return self.frame.size.height;
}
- (void)setYm_height:(CGFloat)ym_height
{
CGRect frame = self.frame;
frame.size.height = ym_height;
self.frame = frame;
}
- (CGFloat)ym_x
{
return self.frame.origin.x;
}
- (void)setYm_x:(CGFloat)ym_x
{
CGRect frame = self.frame;
frame.origin.x = ym_x;
self.frame = frame;
}
- (CGFloat)ym_y
{
return self.frame.origin.y;
}
- (void)setYm_y:(CGFloat)ym_y
{
CGRect frame = self.frame;
frame.origin.y = ym_y;
self.frame = frame;
}
- (CGFloat)ym_centerX
{
return self.center.x;
}
- (void)setYm_centerX:(CGFloat)ym_centerX
{
CGPoint center = self.center;
center.x = ym_centerX;
self.center = center;
}
- (CGFloat)ym_centerY
{
return self.center.y;
}
- (void)setYm_centerY:(CGFloat)ym_centerY
{
CGPoint center = self.center;
center.y = ym_centerY;
self.center = center;
}
- (CGFloat)ym_right
{
return CGRectGetMaxX(self.frame);
}
- (void)setYm_right:(CGFloat)ym_right
{
self.ym_x = ym_right - self.ym_width;
}
- (CGFloat)ym_bottom
{
return CGRectGetMaxY(self.frame);
}
- (void)setYm_bottom:(CGFloat)ym_bottom
{
self.ym_y = ym_bottom - self.ym_height;
}
@end