常用宏定義
//-------------------獲取設備大小-------------------------
//NavBar高度
#define NavigationBar_HEIGHT 44
//獲取屏幕 寬度、高度
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
//----------------------系統----------------------------
// 是否iPad
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
// 是否iPad
#define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone
//獲取系統版本
#define IOS_VERSION [[UIDevice currentDevice] systemVersion] floatValue]
#define CurrentSystemVersion [UIDevice currentDevice] systemVersion]
//獲取當前語言
#define CurrentLanguage ([NSLocale preferredLanguages] objectAtIndex:0])
//判斷是否 Retina屏、設備是否%fhone 5、是否是iPad
#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [UIScreen mainScreen] currentMode].size) : NO)
#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [UIScreen mainScreen] currentMode].size) : NO)
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
//判斷設備的操做系統是不是ios7
#define IOS7 ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]
//判斷當前設備是不是iphone5
#define kScreenIphone5 (([UIScreen mainScreen] bounds].size.height)>=568)
//G-C-D
#define BACK(block) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block)
#define MAIN(block) dispatch_async(dispatch_get_main_queue(),block)
//NSUserDefaults 實例化
#define USER_DEFAULT [NSUserDefaults standardUserDefaults]
//由角度獲取弧度 有弧度獲取角度
#define degreesToRadian(x) (M_PI * (x) / 180.0)
#define radianToDegrees(radian) (radian*180.0)/(M_PI)
//方正黑體簡體字體定義
#define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]
1. transform屬性
在OC中,通過transform屬性可以修改對象的平移、縮放比例和旋轉角度
常用的創建transform結構體方法分兩大類
(1) 創建“基於控件初始位置”的形變
CGAffineTransformMakeTranslation(平移)
CGAffineTransformMakeScale(縮放)
CGAffineTransformMakeRotation(旋轉)
(2) 創建“基於transform參數”的形變
CGAffineTransformTranslate
CGAffineTransformScale
CGAffineTransformRotate
補充:
在OC中,所有跟角度相關的數值,都是弧度值,180° = M_PI
正數表示順時針旋轉
負數表示逆時針旋轉
1 // 2 // YYViewController.m 3 // 01-練習使用按鈕的frame和center屬性 4 // 5 // Created
by apple on 14-5-21. 6 // Copyright
(c) 2014年 itcase. All rights reserved.7 // 8 9 #import "YYViewController.h" 10 11 //私有擴展 12 @interface YYViewController
() 13 14 @property(nonatomic,weak)IBOutletUIButton
*headImageView; 15 @end 16 17 @implementation YYViewController 18 19 //枚舉類型,從1開始 20 //枚舉類型有一個很大的作用,就是用來代替程序中的魔法數字 21 typedef enum 22 { 23 ktopbtntag=1, 24 kdownbtntag, 25 krightbtntag, 26 kleftbtntag 27 }btntag; 28 29 //viewDidLoad是視圖加載完成後調用的方法,通常在此方法中執行視圖控制器的初始化工作 30 -
(void)viewDidLoad 31 { 32 33 //在viewDidLoad方法中,不要忘記調用父類的方法實現 34 [super
viewDidLoad]; 35 36 37 //手寫控件代碼 38 //一、寫一個按鈕控件,上面有一張圖片 39 40 //1.使用類創建一個按鈕對象 41 // UIButton
*headbtn=[[UIButton alloc] initWithFrame:CGRectMake(100,100, 100, 100)]; 42 //設置按鈕對象爲自定義型 43 UIButton
*headbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 44 45 //2.設置對象的各項屬性 46 47 //(1)位置等通用屬性設置 48 headbtn.frame=CGRectMake(100, 100, 100, 100); 49 50 //(2)設置普通狀態下按鈕的屬性 51 [headbtn
setBackgroundImage:[UIImage imageNamed:@"i"]forState:UIControlStateNormal]; 52 [headbtn
setTitle:@"點我!" forState:UIControlStateNormal]; 53 [headbtn
setTitleColor:[UIColor redColor]forState:UIControlStateNormal]; 54 55 //(3)設置高亮狀態下按鈕的屬性 56 [headbtn
setBackgroundImage:[UIImage imageNamed:@"a"]forState:UIControlStateHighlighted]; 57 [headbtn
setTitle:@"還行吧~" forState:UIControlStateHighlighted]; 58 [headbtn
setTitleColor:[UIColor blueColor]forState:UIControlStateHighlighted]; 59 60 //3.把對象添加到視圖中展現出來 61 [self.view
addSubview:headbtn]; 62 //注意點! 63 self.headImageView=headbtn; 64 65 66 //二、寫四個控制圖片左右上下移動方向的按鈕控件 67 68 69 //1.創建按鈕對象 70 UIButton
*topbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 71 72 //2.設置對象的屬性 73 topbtn.frame=CGRectMake(100, 250, 40, 40); 74 [topbtn
setBackgroundImage:[UIImage imageNamed:@"top_normal"]forState:UIControlStateNormal]; 75 [topbtn
setBackgroundImage:[UIImage imageNamed:@"top_highlighted"]forState:UIControlStateHighlighted]; 76 [topbtn
setTag:1]; 77 //3.把控件添加到視圖中 78 [self.view
addSubview:topbtn]; 79 80 //4.按鈕的單擊控制事件 81 [topbtn
addTarget:self action:@selector(Click:)forControlEvents:UIControlEventTouchUpInside]; 82 83 84 85 //1.創建按鈕對象 86 UIButton
*downbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 87 //2.設置對象的屬性 88 downbtn.frame=CGRectMake(100, 350, 40, 40); 89 [downbtn
setBackgroundImage:[UIImage imageNamed:@"bottom_normal"]forState:UIControlStateNormal]; 90 [downbtn
setBackgroundImage:[UIImage imageNamed:@"bottom_highlighted"]forState:UIControlStateHighlighted]; 91 [downbtn
setTag:2]; 92 //3.把控件添加到視圖中 93 [self.view
addSubview:downbtn]; 94 95 //4.按鈕的單擊控制事件 96 [downbtn
addTarget:self action:@selector(Click:)forControlEvents:UIControlEventTouchUpInside]; 97 98 99 100 //1.創建按鈕對象101 UIButton
*leftbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 102 //2.設置對象的屬性103 leftbtn.frame=CGRectMake(50, 300, 40, 40); 104 [leftbtn
setBackgroundImage:[UIImage imageNamed:@"left_normal"]forState:UIControlStateNormal]; 105 [leftbtn
setBackgroundImage:[UIImage imageNamed:@"left_highlighted"]forState:UIControlStateHighlighted]; 106 [leftbtn
setTag:4]; 107 //3.把控件添加到視圖中108 [self.view
addSubview:leftbtn]; 109 110 //4.按鈕的單擊控制事件111 [leftbtn
addTarget:self action:@selector(Click:)forControlEvents:UIControlEventTouchUpInside]; 112 113 114 115 116 //1.創建按鈕對象117 UIButton
*rightbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 118 //2.設置對象的屬性119 rightbtn.frame=CGRectMake(150, 300, 40, 40); 120 [rightbtn
setBackgroundImage:[UIImageimageNamed:@"right_normal"]forState:UIControlStateNormal]; 121 [rightbtn
setBackgroundImage:[UIImageimageNamed:@"right_highlighted"]forState:UIControlStateHighlighted]; 122 [rightbtn
setTag:3]; 123 //3.把控件添加到視圖中124 [self.view
addSubview:rightbtn]; 125 126 //4.按鈕的單擊控制事件127 [rightbtn
addTarget:self action:@selector(Click:)forControlEvents:UIControlEventTouchUpInside]; 128 129 //三、寫兩個縮放按鈕130 131 //1.創建對象132 UIButton
*plusbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 133 //2.設置屬性134 plusbtn.frame=CGRectMake(75, 400, 40, 40); 135 [plusbtn
setBackgroundImage:[UIImage imageNamed:@"plus_normal"]forState:UIControlStateNormal]; 136 [plusbtn
setBackgroundImage:[UIImage imageNamed:@"plus_highlighted"]forState:UIControlStateHighlighted]; 137 [plusbtn
setTag:1]; 138 //3.添加到視圖139 [self.view
addSubview:plusbtn]; 140 //4.單擊事件141 [plusbtn
addTarget:self action:@selector(Zoom:)forControlEvents:UIControlEventTouchUpInside]; 142 143 144 145 UIButton
*minusbtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 146 minusbtn.frame=CGRectMake(125, 400, 40, 40); 147 [minusbtn
setBackgroundImage:[UIImageimageNamed:@"minus_normal"]forState:UIControlStateNormal]; 148 [minusbtn
setBackgroundImage:[UIImageimageNamed:@"minus_highlighted"]forState:UIControlStateHighlighted]; 149 [minusbtn
setTag:0]; 150 [self.view
addSubview:minusbtn]; 151 [minusbtn
addTarget:self action:@selector(Zoom:)forControlEvents:UIControlEventTouchUpInside]; 152 153 154 UIButton
*leftrotatebtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 155 [leftrotatebtn
setFrame:CGRectMake(175, 400, 40, 40)]; 156 [leftrotatebtn
setBackgroundImage:[UIImageimageNamed:@"left_rotate_normal"]forState:UIControlStateNormal]; 157 [leftrotatebtn
setBackgroundImage:[UIImageimageNamed:@"left_rotate_highlighted"]forState:UIControlStateHighlighted]; 158 [leftrotatebtn
setTag:1]; 159 [self.view
addSubview:leftrotatebtn]; 160 [leftrotatebtn
addTarget:self action:@selector(Rotate:)forControlEvents:UIControlEventTouchUpInside]; 161 162 163 UIButton
*rightrotatebtn=[UIButtonbuttonWithType:UIButtonTypeCustom]; 164 [rightrotatebtn
setFrame:CGRectMake(225, 400, 40, 40)]; 165 [rightrotatebtn
setBackgroundImage:[UIImageimageNamed:@"right_rotate_normal"]forState:UIControlStateNormal]; 166 [rightrotatebtn
setBackgroundImage:[UIImageimageNamed:@"right_rotate_highlighted"]forState:UIControlStateHighlighted]; 167 [rightbtn
setTag:0]; 168 [self.view
addSubview:rightrotatebtn]; 169 [rightrotatebtn
addTarget:self action:@selector(Rotate:)forControlEvents:UIControlEventTouchUpInside]; 170 } 171 172 //控制方向的多個按鈕調用同一個方法173 -(void)Click:(UIButton*)button 174 { 175 176 //練習使用frame屬性 177 //CGRectframe=self.headImageView.frame;178 179 180 //練習使用center屬性181 CGPoint
center=self.headImageView.center; 182 switch (button.tag)
{ 183 case ktopbtntag: 184 center.y-=30; 185 break; 186 case kdownbtntag: 187 center.y+=30; 188 break; 189 case kleftbtntag: 190 //發現一個bug,之前的問題是因爲少寫了break,造成了它們的順序執行,sorry 191 //center.x=center.x-30;192 center.x-=50; 193 break; 194 case krightbtntag: 195 center.x+=50; 196 break; 197 } 198 199 // self.headImageView.frame=frame; 200 201 //首尾式設置動畫效果202 [UIView
beginAnimations:nil context:nil]; 203 self.headImageView.center=center; 204 //設置時間205 [UIView
setAnimationDuration:2.0]; 206 [UIView
commitAnimations]; 207 NSLog(@"移動!"); 208 209 } 210 -(void)Zoom:(UIButton*)btn 211 { 212 //使用bounds,以中心點位原點進行縮放213 CGRect
bounds = self.headImageView.bounds; 214 if (btn.tag)
{ 215 bounds.size.height+=30; 216 bounds.size.width+=30; 217 } 218 else219 { 220 bounds.size.height-=50; 221 bounds.size.width-=50; 222 } 223 224 //設置首尾動畫225 [UIView
beginAnimations:nil context:nil]; 226 self.headImageView.bounds=bounds; 227 [UIView
setAnimationDuration:2.0]; 228 [UIView
commitAnimations]; 229 } 230 231 -(void)Rotate:(UIButton*)rotate 232 { 233 //位移(不累加) 234 //self.headImageView.transform=CGAffineTransformMakeTranslation(50,200); 235 //縮放 236 //self.headImageView.transform=CGAffineTransformMakeScale(1.2,10); 237 //在原有的基礎上位移(是累加的) 238 //self.headImageView.transform=CGAffineTransformTranslate(self.headImageView.transform,50,
50); 239 //在原有的基礎上進行縮放 240 //self.headImageView.transform=CGAffineTransformScale(self.headImageView.transform,1.5,
1.6); 241 242 //在原有的基礎上進行旋轉243 if (rotate.tag)
{ 244 //旋轉角度爲1/pi,逆時針245 self.headImageView.transform=CGAffineTransformRotate(self.headImageView.transform,-M_1_PI); 246 } 247 else248 { 249 //旋轉的角度爲pi/2,順時針250 self.headImageView.transform=CGAffineTransformRotate(self.headImageView.transform,
M_PI_2); 251 } 252 253 } 254 @end
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