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分享iOS 内存泄露
+ (NSMutableDictionary *)getKeychainQuery:(NSString *)service {
return [NSMutableDictionary dictionaryWithObjectsAndKeys:
(__bridge_transfer id)kSecClassGenericPassword,(__bridge_transfer id)kSecClass,
service, (__bridge_transfer id)kSecAttrService,
service, (__bridge_transfer id)kSecAttrAccount,
(__bridge_transfer id)kSecAttrAccessibleAfterFirstUnlock,(__bridge_transfer id)kSecAttrAccessible,
nil];
}
为什么这段代码会造成内存泄露？该怎么改？
return [NSMutableDictionary dictionaryWithObjectsAndKeys:
(__bridge_transfer id)kSecClassGenericPassword,(__bridge_transfer id)kSecClass,
service, (__bridge_transfer id)kSecAttrService,
service, (__bridge_transfer id)kSecAttrAccount,
(__bridge_transfer id)kSecAttrAccessibleAfterFirstUnlock,(__bridge_transfer id)kSecAttrAccessible,
nil];
}
为什么这段代码会造成内存泄露？该怎么改？
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weixin_41193385 2017-11-27
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哇啊我只是路过
weixin_41087931 2017-11-27
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右边Annotation 显示100.00% return [NSMutableDictionary dictionaryWithObjectsAndKeys:
weixin_41087931 2017-11-27
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为什么这样改还是报错内存泄漏
不担心 2017-02-08
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__bridge只改变对象的类型,并不会改变对象的所有权
__bridge_transfer在将对象转为oc对象的同时会把所有权也交给oc对象
晨煜煌 2017-02-06
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能解释下为什么吗？
scribbler 2017-01-23
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+ (NSMutableDictionary *)getKeychainQuery:(NSString *)service {
return [NSMutableDictionary dictionaryWithObjectsAndKeys:
(__bridge id)kSecClassGenericPassword,(__bridge id)kSecClass,
service, (__bridge id)kSecAttrService,
service, (__bridge id)kSecAttrAccount,
(__bridge id)kSecAttrAccessibleAfterFirstUnlock,(__bridge id)kSecAttrAccessible,
nil];
}
