原地址：http://www.cnblogs.com/U-tansuo/p/ios_basis_info.html
1、获取设备类型 （Iphone/ipad 几？）
#import "sys/utsname.h"
-(NSString*)getDeviceVersion
{
struct utsname
systemInfo;
uname(&systemInfo);
NSString *deviceString = [NSString stringWithCString:systemInfo.machine
encoding:NSUTF8StringEncoding];
return
deviceString;
}
2、获取系统时间
NSDate* date = [NSDate
date];
NSDateFormatter* formatter =
[[[NSDateFormatter alloc] init] autorelease];
[formatter
setDateFormat:@"yyyy-MM-dd HH:MM:SS"];
[formatter
stringFromDate:date];
3、获取应用版本 手机系统版本信息
UIDevice* uiDevice = [UIDevice
currentDevice];
NSBundle* nsBundle = [NSBundle
mainBundle];
NSDictionary *infoDictionary = [nsBundle
infoDictionary];
NSString* crashInfo = [NSString
stringWithFormat:@"Identifier:%@\nVersion:%@\nOS
Version:%@ %@\nDate/Time:%@\nHardware
Model:%@",
[nsBundle
bundleIdentifier],
[infoDictionary
objectForKey:@"CFBundleVersion"],
[uiDevice
systemName],
[uiDevice
systemVersion],
[self
GetOnlyTime],
[self deviceString] ];
4、获取应用程序目录
NSArray *paths =
NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask,
YES);
NSString *cacheDir = [paths objectAtIndex: 0];
5、创建应用程序内部文件夹
NSFileManager *fm = [NSFileManager
defaultManager];
NSDictionary
*attributes = [NSDictionary dictionaryWithObject: [NSNumber
numberWithUnsignedLong: 0755] forKey:
NSFilePosixPermissions];
if(![fm
fileExistsAtPath:"文件路径"]){
[fm
createDirectoryAtPath:"文件路径"withIntermediateDirectories:YES
attributes:attributes error:NULL];
}
6、获取某个文件夹下所有文件 及删除以某后缀名结尾文件
NSFileManager *fm = [NSFileManager
defaultManager];
NSArray *contents = [fm
contentsOfDirectoryAtPath:path error:NULL];
NSEnumerator
*e = [contents objectEnumerator];
NSString
*filename;
while ((filename = [e nextObject]))
{
NSLog(@"file Name =
%@",filename);
if ([[filename
pathExtension] isEqualToString:@"txt"]||[[filename pathExtension]
isEqualToString:@"plcrash"]) {
[path
stringByAppendingPathComponent:filename];
}
}