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//- (NSString *)freeDiskSpaceInBytes
//{
// struct statfs buf;
// long long freespace = -1;
// if(statfs("/var", &buf) >= 0){
// freespace = (long long)(buf.f_bsize * buf.f_bfree);
// }
// return [self humanReadableStringFromBytes:freespace];
//}
// 计算文件大小
//- (NSString *)humanReadableStringFromBytes:(unsigned long long)byteCount
//{
// float numberOfBytes = byteCount;
// int multiplyFactor = 0;
//
// NSArray *tokens = [NSArray arrayWithObjects:@"bytes",@"KB",@"MB",@"GB",@"TB",@"PB",@"EB",@"ZB",@"YB",nil];
//
// while (numberOfBytes > 1024) {
// numberOfBytes /= 1024;
// multiplyFactor++;
// }
//
// return [NSString stringWithFormat:@"%4.2f %@",numberOfBytes, [tokens objectAtIndex:multiplyFactor]];
//}
//- (CGFloat)deviceFreeDisk{
// NSError *error = nil;
// NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
// if (error) return 0;
// int64_t space = [[attrs objectForKey:NSFileSystemFreeSize] longLongValue];
// if (space < 0) space = 0;
// return space/(1024.0*1024.0);
//}
//- (float)getFreeDiskspace{
// float totalSpace;
// float totalFreeSpace=0.f;
// NSError *error = nil;
// NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
// NSDictionary *dictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:[paths lastObject] error: &error];
// if (dictionary) {
// NSNumber *fileSystemSizeInBytes = [dictionary objectForKey: NSFileSystemSize];
// NSNumber *freeFileSystemSizeInBytes = [dictionary objectForKey:NSFileSystemFreeSize];
// totalSpace = [fileSystemSizeInBytes floatValue];
// totalFreeSpace = [freeFileSystemSizeInBytes floatValue];
// }
// return totalFreeSpace;
//}
//
//-(float)getTotalDiskSpaceInBytes {
// NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
// struct statfs tStats;
// statfs([[paths lastObject] cString], &tStats);
// float totalSpace = (float)(tStats.f_blocks * tStats.f_bsize);
// return totalSpace;
//}
// 空余硬盘大小
- (NSString *)freeDiskSpaceInBytes{
CGFloattotalFreeSpace =0.0;
NSError*error =nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:[paths lastObject] error: &error];
if(dictionary) {
NSNumber*freeFileSystemSizeInBytes = [dictionaryobjectForKey:NSFileSystemFreeSize];
totalFreeSpace = [freeFileSystemSizeInBytesfloatValue];
NSLog(@" %f GB Free memory available.", ((totalFreeSpace/1024.f)/1024.f)/1024.f);
}else{
NSLog(@"Error Obtaining System Memory Info: Domain = %@, Code = %@", [error domain], [error code]);
}
if(@available(iOS11.0, *)) {
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:NSTemporaryDirectory()];
NSDictionary *results = [fileURL resourceValuesForKeys:@[NSURLVolumeAvailableCapacityForImportantUsageKey] error:&error];
if(!results) {
NSLog(@"Error retrieving resource keys: %@%@",[error localizedDescription], [error userInfo]);
abort();
}
NSLog(@"Available capacity for important usage: %lf",[[results objectForKey:NSURLVolumeAvailableCapacityForImportantUsageKey] floatValue]);
totalFreeSpace = [[resultsobjectForKey:NSURLVolumeAvailableCapacityForImportantUsageKey] floatValue];
}else{
}
return[selffileSizeToString:totalFreeSpace];
}
// 总共硬盘大小
- (NSString *)totalDiskSpace{
CGFloattotalSpace =0.0;
NSError*error =nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:[paths lastObject] error: &error];
if(dictionary) {
NSNumber*fileSystemSizeInBytes = [dictionaryobjectForKey:NSFileSystemSize];
totalSpace = [fileSystemSizeInBytesfloatValue];
NSLog(@"Memory Capacity of %f GB .", ((totalSpace/1024.f)/1024.f/1024.f));
}else{
NSLog(@"Error Obtaining System Memory Info: Domain = %@, Code = %@", [error domain], [error code]);
}
// return totalSpace;
return[selffileSizeToString:totalSpace];
}
-(NSString*)fileSizeToString:(CGFloat)fileSize
{
NSIntegerKB;
if(@available(iOS11, *)) {
KB =1000.f;
}else{
KB =1024.f;
}
NSIntegerMB = KB*KB;
NSIntegerGB = MB*KB;
if(fileSize <10.f) {
return@"0 B";
}elseif(fileSize < KB) {
return@"< 1 KB";
}elseif(fileSize < MB) {
return[NSStringstringWithFormat:@"%.1f KB",((float)fileSize)/KB];
}elseif(fileSize < GB) {
return[NSStringstringWithFormat:@"%.1f MB",((float)fileSize)/MB];
}else {
return[NSStringstringWithFormat:@"%.1f GB",((float)fileSize)/GB];
}
}
#pragma mark 空间剩余
-(void)spaceFreeAndTotal{
NSString* str = [self freeDiskSpaceInBytes] ;
NSString* str1 = [selftotalDiskSpace] ;
totalpacestr = str1;
freespacestr = str ;
NSString* sizeStr = [NSStringstringWithFormat:@"手机存储：总空间 %@/剩余%@可用",str1,str];
showLabelStr= sizeStr;
NSMutableAttributedString *strnn = [[NSMutableAttributedString alloc] initWithString:sizeStr];
[strnnaddAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(9,totalpacestr.length)];
NSIntegerwhereInt =9+totalpacestr.length+3;
[strnnaddAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(whereInt,freespacestr.length)];
self.showFreeSpaceL.attributedText= strnn;
}
}
