MacOs - Objective-C 获取iPhone硬盘总容量及空闲容量的3种方法
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<h5>方法1</h5>
<p>总容量：</p>
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<pre class="line-numbers language-cpp highlighter-hljs" data-dark-theme="true"><code> struct statfs buf;
long long totalspace;
totalspace = 0;
if(statfs("/private/var", &buf) >= 0){
totalspace = (long long)buf.f_bsize * buf.f_blocks;
}
return totalspace;</code></pre>
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<p>空闲容量：</p>
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<pre class="line-numbers language-cpp highlighter-hljs" data-dark-theme="true"><code> struct statfs buf;
long long freespace;
freespace = 0;
if(statfs("/private/var", &buf) >= 0){
freespace = (long long)buf.f_bsize * buf.f_bfree;
}
return freespace;</code></pre>
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<p>PS. 需要引入头文件<code>#import <sys/mount.h></code></p>
<h5>方法2</h5>
<p>总容量及空闲容量：</p>
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<pre class="line-numbers language-objectivec highlighter-hljs" data-dark-theme="true"><code> NSDictionary *systemAttributes = [ fileSystemAttributesAtPath:NSHomeDirectory()];
NSString *diskTotalSize = ;
NSLog(@"磁盘大小：%@ B", diskTotalSize);
NSLog(@"磁盘大小：%.2f GB", /1024/1024/1024);
NSString *diskFreeSize = ;
NSLog(@"可用空间：%@ B", diskFreeSize);
NSLog(@"可用空间：%.2f MB", /1024/1024);</code></pre>
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<p>PS. 这里所用的方法fileSystemAttributesAtPath:在 iOS 2.0 时已被宣告弃用，但在如今最新的SDK中该方法仍然可用。目前只是提示警告信息，在后续版本的 iOS SDK 中也有被移除的可能。</p>
<h5>方法3</h5>
<p>依据方法2提供的思路，加以完善。<br>总容量及空闲容量：</p>
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<pre class="line-numbers language-objectivec highlighter-hljs" data-dark-theme="true"><code> float totalSpace;
float freeSpace;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDictionary *dictionary = [ attributesOfFileSystemForPath: error: &error];
if (dictionary) {
NSNumber *fileSystemSizeInBytes = ;
totalSpace = /1024.0f/1024.0f/1024.0f;
NSNumber *freeFileSystemSizeInBytes = ;
freeSpace = /1024.0f/1024.0f;
} else {
totalSpace = 0;
freeSpace = 0;
}</code></pre>
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<br><br>作者：WonderChang<br>链接：https://www.jianshu.com/p/a89d8c299d31<br>来源：简书<br>著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。</div><br><br>
来源：https://www.cnblogs.com/zhuchunlin/p/17953848
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