```
+ (BOOL)isJailBreak
{
// 1.通过越狱后增加的越狱文件判断
NSArray *jailbreak_tool_paths = @[ @"/Applications/Cydia.app", @"/Library/MobileSubstrate/MobileSubstrate.dylib", @"/bin/bash", @"/usr/sbin/sshd", @"/etc/apt" ];
for (int i=0; i<jailbreak_tool_paths.count; i++)
{
if ([[NSFileManager defaultManager] fileExistsAtPath:jailbreak_tool_paths[i]])
{
NSLog(@"The device is jail broken!");
return YES;
}
}
```
// 3.根据是否能获取所有应用的名称判断
```
if ([[NSFileManager defaultManager] fileExistsAtPath:@"User/Applications/"])
{
NSLog(@"The device is jail broken!");
NSArray *appList = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:@"User/Applications/" error:nil]; NSLog(@"appList = %@", appList);
return YES;
}
```
// 2.根据是否能打开cydia判断
```
// if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"cydia://"]])
// {
// NSLog(@"The device is jail broken!");
// return YES;
// }
NSLog(@"The device is NOT jail broken!");
return NO;
}
```
