開發中,幾乎都會需要時按鈕上的文字在圖片的上面,下面,左面,右面,然後就再次封裝! 慢慢的,就自己試着寫了一個封裝,只需要調用一個方法就能實現文字和圖片的不同位置展示!下面是代碼:
.h文件
//
// ZFSButton.h
// ZFSNetWorkRequest
//
// Created by HandsomeC on 16/12/12.
// Copyright © 2016年 趙發生. All rights reserved.
//
#import <UIKit/UIKit.h>
/********
該自定的button是控制圖片與文字未知的,有圖片在上,文字在下,圖片與文字左右適配等封裝
*********/
typedef NS_ENUM(NSInteger, ZFSImageLocation) {
ZFSImageLocationLeft = 0, //圖片在文字的左邊，默認
ZFSImageLocationRight, //圖片在文字的右邊
ZFSImageLocationTop, //圖片在文字的上邊
ZFSImageLocationBottom, //圖片在文字的下邊
};
typedef NS_ENUM(NSInteger, ZFSOffSetDirection) {
ZFSOffSetDirectionLeft = 0, //圖片文字整體向左邊偏移，默認
ZFSOffSetDirectionRight, //圖片文字整體向右邊偏移
ZFSOffSetDirectionTop, //圖片文字整體向上邊偏移
ZFSOffSetDirectionBottom, //圖片文字整體向下邊偏移
};
@interface ZFSButton : UIButton
/**
* 根據圖片的位置和圖片文字的間距來重新設置button的image和title的排列
* 如果圖片和文字大於button的大小，文字和圖片顯示的地方就會超出按鈕
*
* @param location 圖片位於文字的哪個方位
* @param spacing 圖片和文字的間距離
*/
- (void)setImageLocation:(ZFSImageLocation)location spacing:(CGFloat)spacing;
/**
* 根據圖片的位置和圖片文字的間距來重新設置button的image和title的排列，根據offset來確定整體要偏移的方向以及偏移的數值
* 如果圖片和文字大於button的大小，文字和圖片顯示的地方就會超出按鈕
*
* @param location 圖片在文字的哪個方向
* @param spacing 圖片和文字的間隔
* @param offSetDirection 哪個方向偏移
* @param offSetVar 偏移多少
*/
- (void)setImageLocation:(ZFSImageLocation)location spacing:(CGFloat)spacing offSet:(ZFSOffSetDirection)offSetDirection offSetVar:(CGFloat)offSetVar;
@end
.m文件
//
// ZFSButton.m
// ZFSNetWorkRequest
//
// Created by HandsomeC on 16/12/12.
// Copyright © 2016年 趙發生. All rights reserved.
//
#import "ZFSButton.h"
@implementation ZFSButton
- (void)setImageLocation:(ZFSImageLocation)location spacing:(CGFloat)spacing {
CGFloat imageWith = self.imageView.image.size.width;
CGFloat imageHeight = self.imageView.image.size.height;
CGSize texth_wXQ = CGSizeMake(MAXFLOAT,MAXFLOAT);
NSDictionary *dicText = @{NSFontAttributeName :self.titleLabel.font};
CGFloat titleWidth = [self.titleLabel.text boundingRectWithSize:texth_wXQ options:NSStringDrawingUsesLineFragmentOrigin attributes:dicText context:nil].size.width;
CGFloat titleHeight = [self.titleLabel.text boundingRectWithSize:texth_wXQ options:NSStringDrawingUsesLineFragmentOrigin attributes:dicText context:nil].size.height;
//image中心移動的x距離
CGFloat imageOffsetX = (imageWith + titleWidth) / 2 - imageWith / 2;
//image中心移動的y距離
CGFloat imageOffsetY = imageHeight / 2 + spacing / 2;
//title中心移動的x距離
CGFloat titleOffsetX = (imageWith + titleWidth / 2) - (imageWith + titleWidth) / 2;
//title中心移動的y距離
CGFloat labelOffsetY = titleHeight / 2 + spacing / 2;
switch (location) {
case ZFSImageLocationLeft:
self.imageEdgeInsets = UIEdgeInsetsMake(0, -spacing/2, 0, spacing/2);
self.titleEdgeInsets = UIEdgeInsetsMake(0, spacing/2, 0, -spacing/2);
break;
case ZFSImageLocationRight:
self.imageEdgeInsets = UIEdgeInsetsMake(0, titleWidth + spacing/2, 0, -(titleWidth + spacing/2));
self.titleEdgeInsets = UIEdgeInsetsMake(0, -(imageHeight + spacing/2), 0, imageHeight + spacing/2);
break;
case ZFSImageLocationTop:
self.imageEdgeInsets = UIEdgeInsetsMake(-imageOffsetY, imageOffsetX, imageOffsetY, -imageOffsetX);
self.titleEdgeInsets = UIEdgeInsetsMake(labelOffsetY, -titleOffsetX, -labelOffsetY, titleOffsetX);
break;
case ZFSImageLocationBottom:
self.imageEdgeInsets = UIEdgeInsetsMake(imageOffsetY, imageOffsetX, -imageOffsetY, -imageOffsetX);
self.titleEdgeInsets = UIEdgeInsetsMake(-labelOffsetY, -titleOffsetX, labelOffsetY, titleOffsetX);
break;
default:
break;
}
}
- (void)setImageLocation:(ZFSImageLocation)location spacing:(CGFloat)spacing offSet:(ZFSOffSetDirection)offSetDirection offSetVar:(CGFloat)offSetVar{
CGFloat imageWith = self.imageView.image.size.width;
CGFloat imageHeight = self.imageView.image.size.height;
CGSize texth_wXQ = CGSizeMake(MAXFLOAT,MAXFLOAT);
NSDictionary *dicText = @{NSFontAttributeName :self.titleLabel.font};
CGFloat titleWidth = [self.titleLabel.text boundingRectWithSize:texth_wXQ options:NSStringDrawingUsesLineFragmentOrigin attributes:dicText context:nil].size.width;
CGFloat titleHeight = [self.titleLabel.text boundingRectWithSize:texth_wXQ options:NSStringDrawingUsesLineFragmentOrigin attributes:dicText context:nil].size.height;
//image中心移動的x距離
CGFloat imageOffsetX = (imageWith + titleWidth) / 2 - imageWith / 2;
//image中心移動的y距離
CGFloat imageOffsetY = imageHeight / 2 + spacing / 2;
//title中心移動的x距離
CGFloat titleOffsetX = (imageWith + titleWidth / 2) - (imageWith + titleWidth) / 2;
//title中心移動的y距離
CGFloat labelOffsetY = titleHeight / 2 + spacing / 2;
switch (location) {
case ZFSImageLocationLeft:
self.imageEdgeInsets = UIEdgeInsetsMake(0, -spacing/2, 0, spacing/2);
self.titleEdgeInsets = UIEdgeInsetsMake(0, spacing/2, 0, -spacing/2);
break;
case ZFSImageLocationRight:
self.imageEdgeInsets = UIEdgeInsetsMake(0, titleWidth + spacing/2, 0, -(titleWidth + spacing/2));
self.titleEdgeInsets = UIEdgeInsetsMake(0, -(imageHeight + spacing/2), 0, imageHeight + spacing/2);
break;
case ZFSImageLocationTop:
self.imageEdgeInsets = UIEdgeInsetsMake(-imageOffsetY, imageOffsetX, imageOffsetY, -imageOffsetX);
self.titleEdgeInsets = UIEdgeInsetsMake(labelOffsetY, -titleOffsetX, -labelOffsetY, titleOffsetX);
break;
case ZFSImageLocationBottom:
self.imageEdgeInsets = UIEdgeInsetsMake(imageOffsetY, imageOffsetX, -imageOffsetY, -imageOffsetX);
self.titleEdgeInsets = UIEdgeInsetsMake(-labelOffsetY, -titleOffsetX, labelOffsetY, titleOffsetX);
break;
default:
break;
}
CGFloat imageTop = self.imageEdgeInsets.top;
CGFloat imageLeft = self.imageEdgeInsets.left;
CGFloat imageBottom = self.imageEdgeInsets.bottom;
CGFloat imageRight = self.imageEdgeInsets.right;
CGFloat titleTop = self.titleEdgeInsets.top;
CGFloat titleLeft = self.titleEdgeInsets.left;
CGFloat titleBottom = self.titleEdgeInsets.bottom;
CGFloat titleRight = self.titleEdgeInsets.right;
switch (offSetDirection){
case ZFSOffSetDirectionLeft:
self.imageEdgeInsets = UIEdgeInsetsMake(imageTop, imageLeft - offSetVar, imageBottom, imageRight + offSetVar);
self.titleEdgeInsets = UIEdgeInsetsMake(titleTop, titleLeft - offSetVar, titleBottom, titleRight + offSetVar);
break;
case ZFSOffSetDirectionRight:
self.imageEdgeInsets = UIEdgeInsetsMake(imageTop, imageLeft + offSetVar, imageBottom, imageRight - offSetVar);
self.titleEdgeInsets = UIEdgeInsetsMake(titleTop, titleLeft + offSetVar, titleBottom, titleRight - offSetVar);
break;
case ZFSOffSetDirectionTop:
self.imageEdgeInsets = UIEdgeInsetsMake(imageTop - offSetVar , imageLeft, imageBottom + offSetVar, imageRight);
self.titleEdgeInsets = UIEdgeInsetsMake(titleTop - offSetVar , titleLeft, titleBottom + offSetVar, titleRight);
break;
case ZFSOffSetDirectionBottom:
self.imageEdgeInsets = UIEdgeInsetsMake(imageTop + offSetVar, imageLeft, imageBottom - offSetVar, imageRight);
self.titleEdgeInsets = UIEdgeInsetsMake(titleTop + offSetVar, titleLeft, titleBottom - offSetVar, titleRight);
break;
default:
break;
}
}
@end