iPhone磁盘空间／剩余空间代码

   

 

#include <sys/param.h>     
#include <sys/mount.h>  
long long freeSpace() {  
    struct statfs buf;  
    long long freespace = -1;  
    if(statfs("/", &buf) >= 0){  
        freespace = (long long)buf.f_bsize * buf.f_bfree;  
    }  
    
    return freespace;  
}  

+(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;     
} 

//以上代码，需要的.h里进行声明,应用如下：
    NSLog(@"total disk= %.2f GB", [Utilitys getTotalDiskSpaceInBytes] / (1024.0 * 1024.0 * 1024));
    NSLog(@"free disk= %.2f GB", freeSpace() / (1024.0 * 1024.0 * 1024));