Iphone 获取文件路径的最后2个目录
我有一个文件路径,例如Iphone 获取文件路径的最后2个目录,iphone,objective-c,ios,xcode,ipod-touch,Iphone,Objective C,Ios,Xcode,Ipod Touch,我有一个文件路径,例如/Users/Documents/newyork/SoHo/abc.doc。现在我只需要从这个路径中检索/SoHo/abc.doc 我经历了以下几点: stringByDeletingPathExtension->用于从路径中删除扩展 stringByDeletingLastPathComponent->删除零件中的最后一个零件 但是,我没有找到任何方法删除路径的第一部分并保留最后两部分。为什么不搜索“/”字符并以这种方式确定路径 通过向字符串发送pathCompone
/Users/Documents/newyork/SoHo/abc.doc
。现在我只需要从这个路径中检索/SoHo/abc.doc
我经历了以下几点:
->用于从路径中删除扩展stringByDeletingPathExtension
->删除零件中的最后一个零件stringByDeletingLastPathComponent
但是,我没有找到任何方法删除路径的第一部分并保留最后两部分。为什么不搜索“/”字符并以这种方式确定路径
pathComponents
消息,将字符串分成多个组件+pathWithComponents:
我为你写了一个特别的函数:
- (NSString *)directoryAndFilePath:(NSString *)fullPath
{
NSString *path = @"";
NSLog(@"%@", fullPath);
NSRange range = [fullPath rangeOfString:@"/" options:NSBackwardsSearch];
if (range.location == NSNotFound) return fullPath;
range = NSMakeRange(0, range.location);
NSRange secondRange = [fullPath rangeOfString:@"/" options:NSBackwardsSearch range:range];
if (secondRange.location == NSNotFound) return fullPath;
secondRange = NSMakeRange(secondRange.location, [fullPath length] - secondRange.location);
path = [fullPath substringWithRange:secondRange];
return path;
}
只要打电话:
[self directoryAndFilePath:@"/Users/Documents/New York/SoHo/abc.doc"];
NSString有大量的路径处理方法,如果不使用这些方法,那将是一件很遗憾的事情
NSString* filePath = // something
NSArray* pathComponents = [filePath pathComponents];
if ([pathComponents count] > 2) {
NSArray* lastTwoArray = [pathComponents subarrayWithRange:NSMakeRange([pathComponents count]-2,2)];
NSString* lastTwoPath = [NSString pathWithComponents:lastTwoArray];
}
NSString*路径的最后两个组件; NSString*filePath=//获取路径
NSArray* pathComponents = [filePath pathComponents];
int last= [pathComponents count] -1;
for(int i=0 ; i< [pathComponents count];i++){
if(i == (last -1)){
theLastTwoComponentOfPath = [pathComponents objectAtIndex:i];
}
if(i == last){
theTemplateName = [NSString stringWithFormat:@"\\%@\\%@", theLastTwoComponentOfPath,[pathComponents objectAtIndex:i] ];
}
}
NSArray*pathComponents=[filePath pathComponents];
int last=[pathComponents计数]-1;
对于(int i=0;i<[pathComponents计数];i++){
如果(i==(最后-1)){
路径的最后两个组件=[pathComponents对象索引:i];
}
如果(i==最后一个){
模板名称=[NSString stringWithFormat:@“\\%@\\%@”,路径的最后两个组件[pathComponents objectAtIndex:i];
}
}
NSlog(@“最后两个组件=%@”,路径的最后两个组件)