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解决NSData转NSString返回nil的问题

// 字符串转Data NSString *str =@"jesfds"; NSData *data =[str dataUsingEncoding:NSUTF8StringEncoding]; //NSData 转NSString NSString *result =[[ NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; //data 转char NSData *data; char *test=[da…

iOS解决NSData转NSString后字符为空

iOS中,将NSData转NSString的一般方法为[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];但是当data中包含00时,所获得的新字符就会为nil,这时我们应该这样转 [NSString stringWithUTF8String:[data bytes]];…

Object-C 中各数据类型转换 NSData转NSString，Byte，UIImage

1,NSData 与 NSString NSData --> NSString NSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString --> NSData NSString *aString = @"1234"; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncod…

ios 数据类型转换 UIImage转换为NSData NSData转换为NSString

1.UIImage转换为NSData NSData *data;if (UIImagePNGRepresentation(image) == nil) { data = UIImageJPEGRepresentation(image, 1); } else { data = UIImagePNGRepresentation(image);} 2.NSData转换为NSString NSString *str=[[NSString alloc]initWithData:data];…

NSData NSDate NSString NSArray NSDictionary 相互转换

// NSData NSDate NSString NSArray NSDictionary json NSString *string = @"hello word"; NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding]; NSArray *array = [NSArray arrayWithObjects:@"1",@"2",@"3",nil]; N…

ios -- NSdata 与 NSString，Byte数组，UIImage 的相互转换(转)

1. NSData 与 NSStringNSData-> NSStringNSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString->NSDataNSString *aString = @"1234abcd";NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncoding]…

NSdata 与 NSString，Byte数组，UIImage 的相互转换

1. NSData 与 NSString NSData-> NSString NSString *aString = [[NSString alloc] initWithData:adataencoding:NSUTF8StringEncoding]; NSString->NSData NSString *aString = @"1234abcd"; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncodi…

(转)Object-C 中各数据类型转换 NSData转NSString，Byte，UIImage

,NSData 与 NSString NSData --> NSString NSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString --> NSData NSString *aString = "; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncoding]; ,NSDat…

ios开发之 -- NSData 和 NSString , UIImage 等之间的互转

//NSData转换为UIImage NSData *imageData = [NSData dataWithContentsOfFile: imagePath]; UIImage *image = [UIImage imageWithData: imageData]; //UIImage转换为NSData NSData *imageData = UIImagePNGRepresentation(aimae); . 字符串转Data NSString * str =@"str"; NS…

NSData NSDate NSString NSArray NSDictionary 相互转化

//    NSData  NSDate NSString NSArray NSDictionary json NSString *string = @"hello word"; NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding]; NSArray *array = [NSArray arrayWithObjects:@"1",@"2",@"3",nil…