52 lines
1.7 KiB
Mathematica
52 lines
1.7 KiB
Mathematica
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#import "NSString+String.h"
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@implementation NSString (String)
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-(CGSize)sizeWithFont:(UIFont *)font With:(CGFloat)with{
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CGSize size = CGSizeMake(with, MAXFLOAT);//限制文字显识的一个区域
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NSDictionary *att = @{NSFontAttributeName : font};//文字显示的属性
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CGRect rect = [self boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:att context:nil];//计算出文字显示需要的大小
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return rect.size;
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}
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-(CGSize)sizeWithFont:(UIFont *)font hiegth:(CGFloat)hiegth{
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CGSize size = CGSizeMake(MAXFLOAT, hiegth);//限制文字显识的一个区域
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NSDictionary *att = @{NSFontAttributeName : font};//文字显示的属性
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CGRect rect = [self boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:att context:nil];
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return rect.size;
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}
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+(NSString *)filePathInDocumentsWithFileName:(NSString *)filename{
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NSString *documentsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
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NSString *filePath = [documentsPath stringByAppendingPathComponent:filename];
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return filePath;
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}
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+ (NSString *)dictionaryToJson:(NSDictionary *)dic
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{
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NSError *parseError = nil;
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NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic options:NSJSONWritingPrettyPrinted error:&parseError];
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return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
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}
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+ (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonStr{
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NSData *data = [jsonStr dataUsingEncoding:NSUTF8StringEncoding];
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NSDictionary *tempDic = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
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return tempDic;
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}
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@end
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