iOS Object-C 常用到的代码块（持续更新）
2019-06-28 本文已影响0人
jgyhc
YYModel相关的：
- 声明自定义类参数类型
+ (NSDictionary *)modelContainerPropertyGenericClass {
return @{@"<#arrayName#>" : [<#ClassName#> class]};
}
- 黑名单（如果实现了该方法，则处理过程中会忽略该列表内的所有属性）
+ (NSArray *)modelPropertyBlacklist {
return @[@"<#propertyName#>"];
}
- 白名单(如果实现了该方法，则处理过程中不会处理该列表外的属性。)
+ (NSArray *)modelPropertyWhitelist {
return @[@"<#property#>"];
}
系统功能
- 拨打电话
NSMutableString *str=[[NSMutableString alloc] initWithFormat:@"[telprompt://%@](telprompt://%25@)",@"<#phone#>"];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]]
- 手机系统版本：9.1
NSString* phoneVersion = [[UIDevice currentDevice] systemVersion];
- 手机类型：iPhone 6(方法在下面)
NSString* phoneModel = [self iphoneType];
- (NSString *)iphoneType {
需要导入头文件：#import <sys/utsname.h>
struct utsname systemInfo;
uname(&systemInfo);
NSString *platform = [NSString stringWithCString:systemInfo.machine encoding:NSASCIIStringEncoding];
if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone 2G";
if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
if ([platform isEqualToString:@"iPhone3,2"]) return @"iPhone 4";
if ([platform isEqualToString:@"iPhone3,3"]) return @"iPhone 4";
if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
if ([platform isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
if ([platform isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
if ([platform isEqualToString:@"iPhone5,3"]) return @"iPhone 5c";
if ([platform isEqualToString:@"iPhone5,4"]) return @"iPhone 5c";
if ([platform isEqualToString:@"iPhone6,1"]) return @"iPhone 5s";
if ([platform isEqualToString:@"iPhone6,2"]) return @"iPhone 5s";
if ([platform isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";
if ([platform isEqualToString:@"iPhone7,2"]) return @"iPhone 6";
if ([platform isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";
if ([platform isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";
if ([platform isEqualToString:@"iPhone8,4"]) return @"iPhone SE";
if ([platform isEqualToString:@"iPhone9,1"]) return @"iPhone 7";
if ([platform isEqualToString:@"iPhone9,2"]) return @"iPhone 7 Plus";
if ([platform isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G";
if ([platform isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G";
if ([platform isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G";
if ([platform isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G";
if ([platform isEqualToString:@"iPod5,1"]) return @"iPod Touch 5G";
if ([platform isEqualToString:@"iPad1,1"]) return @"iPad 1G";
if ([platform isEqualToString:@"iPad2,1"]) return @"iPad 2";
if ([platform isEqualToString:@"iPad2,2"]) return @"iPad 2";
if ([platform isEqualToString:@"iPad2,3"]) return @"iPad 2";
if ([platform isEqualToString:@"iPad2,4"]) return @"iPad 2";
if ([platform isEqualToString:@"iPad2,5"]) return @"iPad Mini 1G";
if ([platform isEqualToString:@"iPad2,6"]) return @"iPad Mini 1G";
if ([platform isEqualToString:@"iPad2,7"]) return @"iPad Mini 1G";
if ([platform isEqualToString:@"iPad3,1"]) return @"iPad 3";
if ([platform isEqualToString:@"iPad3,2"]) return @"iPad 3";
if ([platform isEqualToString:@"iPad3,3"]) return @"iPad 3";
if ([platform isEqualToString:@"iPad3,4"]) return @"iPad 4";
if ([platform isEqualToString:@"iPad3,5"]) return @"iPad 4";
if ([platform isEqualToString:@"iPad3,6"]) return @"iPad 4";
if ([platform isEqualToString:@"iPad4,1"]) return @"iPad Air";
if ([platform isEqualToString:@"iPad4,2"]) return @"iPad Air";
if ([platform isEqualToString:@"iPad4,3"]) return @"iPad Air";
if ([platform isEqualToString:@"iPad4,4"]) return @"iPad Mini 2G";
if ([platform isEqualToString:@"iPad4,5"]) return @"iPad Mini 2G";
if ([platform isEqualToString:@"iPad4,6"]) return @"iPad Mini 2G";
if ([platform isEqualToString:@"i386"]) return @"iPhone Simulator";
if ([platform isEqualToString:@"x86_64"]) return @"iPhone Simulator";
return platform;
}
- 手机系统：iPhone OS
NSString * iponeM = [[UIDevice currentDevice] systemName];
- 电池电量
CGFloat batteryLevel=[[UIDevice currentDevice] batteryLevel];
UIKit
- UIAlertController
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"<#title#>" message:@"<#content#>" preferredStyle:UIAlertControllerStyleAlert];
[alertController addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}]];
[alertController addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}]];
[self presentViewController:alertController animated:YES completion:nil];
- UILabel初始化
UILabel *label = ({
UILabel *label = [[UILabel alloc] init];
label.font = [UIFont systemFontOfSize:13];
label.textColor = [UIColor whiteColor];
label;
})
- 修改UITextField中Placeholder的文字颜色
[textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"];
其他
- 单例初始化
+ (instancetype)sharedInstance {
static <#ClassName#> *instance;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
instance = [[<#ClassName#> alloc] init];
});
return instance;
}
- JSON字符串转化为字典
+ (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString
{
if (jsonString == nil) {
return nil;
}
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&err];
if(err)
{
NSLog(@"json解析失败：%@",err);
return nil;
}
return dic;
}
16进制颜色宏定义
#define HEX_RGBA(rgbValue,a) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:(a)]
#define HEX_RGB(rgbValue)[UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:(1)]
#define RGB(R,G,B) [UIColor colorWithRed:R/255.0f green:G/255.0f blue:B/255.0f alpha:1.0f]
#define RGBA(R,G,B,A) [UIColor colorWithRed:R/255.0f green:G/255.0f blue:B/255.0f alpha:A]
- 随机颜色
#define random(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:(a)/255.0]
#define randomColor random(arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256))
- 枚举
typedef enum NSUInteger {
<#enumNameType#> ,
<#enumNameType#>
} <#enumName#>;
- 阿拉伯数字转中文格式
+(NSString *)translation:(NSString *)arebic
{
NSString *str = arebic;
NSArray *arabic_numerals = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"0"];
NSArray *chinese_numerals = @[@"一",@"二",@"三",@"四",@"五",@"六",@"七",@"八",@"九",@"零"];
NSArray *digits = @[@"个",@"十",@"百",@"千",@"万",@"十",@"百",@"千",@"亿",@"十",@"百",@"千",@"兆"];
NSDictionary *dictionary = [NSDictionary dictionaryWithObjects:chinese_numerals forKeys:arabic_numerals];
NSMutableArray *sums = [NSMutableArray array];
for (int i = 0; i < str.length; i ++) {
NSString *substr = [str substringWithRange:NSMakeRange(i, 1)];
NSString *a = [dictionary objectForKey:substr];
NSString *b = digits[str.length -i-1];
NSString *sum = [a stringByAppendingString:b];
if ([a isEqualToString:chinese_numerals[9]])
{
if([b isEqualToString:digits[4]] || [b isEqualToString:digits[8]])
{
sum = b;
if ([[sums lastObject] isEqualToString:chinese_numerals[9]])
{
[sums removeLastObject];
}
}else
{
sum = chinese_numerals[9];
}
if ([[sums lastObject] isEqualToString:sum])
{
continue;
}
}
[sums addObject:sum];
}
NSString *sumStr = [sums componentsJoinedByString:@""];
NSString *chinese = [sumStr substringToIndex:sumStr.length-1];
NSLog(@"%@",str);
NSLog(@"%@",chinese);
return chinese;
}
- 颜色转图片
- (UIImage*)createImageWithColor:(UIColor*)color {
CGRect rect = CGRectMake(0.0f,0.0f,1.0f,1.0f);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return theImage;
}
- 去掉小数后多余的0
- (NSString *)removeFloatAllZero:(NSString *)string {
NSString * testNumber = string;
NSString * outNumber = [NSString stringWithFormat:@"%@",@(testNumber.floatValue)];
//价格格式化显示
NSNumberFormatter * formatter = [[NSNumberFormatter alloc]init];
formatter.numberStyle = kCFNumberFormatterDecimalStyle;
NSString * formatterString = [formatter stringFromNumber:[NSNumber numberWithFloat:[outNumber doubleValue]]];
//获取要截取的字符串位置
NSRange range = [formatterString rangeOfString:@"."];
if (range.length > 0 ) {
NSString * result = [formatterString substringFromIndex:range.location];
if (result.length >= 4) {
formatterString = [formatterString substringToIndex:formatterString.length - 1];
}
}
return formatterString;
}
