Created
December 18, 2014 08:56
-
-
Save hirokim/7750baf50b9726520b03 to your computer and use it in GitHub Desktop.
NSDataを指定サイズに分割する
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* NSDataを指定サイズに分割する | |
* | |
*/ | |
+ (NSArray *)splitDataWithData:(NSData *)data splitSize:(int)size | |
{ | |
NSRange dataRange; | |
NSInteger dataSize = data.length; | |
NSInteger dataSplitCount = dataSize/size; | |
dataRange.length = size; | |
dataRange.location = 0; | |
NSMutableArray *dataArray = [NSMutableArray array]; | |
for(NSInteger cnt = 0;cnt<dataSplitCount;cnt++) { | |
[dataArray addObject:[data subdataWithRange:dataRange]]; | |
dataRange.location += size; | |
} | |
// 最後のデータは、長さを調整してから処理を行う | |
dataRange.length = dataSize % size; | |
[dataArray addObject:[data subdataWithRange:dataRange]]; | |
return dataArray; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment