ios 使用keychain具体方法
Dictionary 写入:
if ([self.currentUserAccount length] > 0) {
KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc]initWithIdentifier:@"useraccount" accessGroup:nil];
if (keychainItem) {
if ([[keychainItem objectForKey:kSecAttrAccount] length ] > 0) {
//already has data
NSMutableArray *accountArray = [[keychainItem objectForKey:kSecAttrAccount] propertyList];
if (accountArray && [accountArray isKindOfClass:[NSMutableArray class]] && [accountArray count] > 0)
{
//just store the different user account
//NSUInteger indexOfTheObject = [accountArray indexOfObject: self.currentUserAccount];
//if (indexOfTheObject > [accountArray count]) {
[accountArray addObject:self.currentUserAccount];
[keychainItem setObject:[accountArray description] forKey:(id)kSecAttrAccount];
//}
for (int index = 0; index < [accountArray count]; index ++) {
NSLog(@"the value is %@",[accountArray objectAtIndex:index]);
}
}
}else{
//has no data
NSMutableArray *accountArray = [NSMutableArray arrayWithObject:self.currentUserAccount];
[keychainItem setObject:[accountArray description] forKey:(id)kSecAttrAccount];
}
}
}
Dictionary 读取:
KeychainItemWrapper *tokenKeychainItem = [[[KeychainItemWrapper alloc]initWithIdentifier:@"UserAuthToken" accessGroup:nil]autorelease];
if (tokenKeychainItem && [[tokenKeychainItem objectForKey:kSecValueData] length ] > 0) {
//[tokenKeychainItem resetKeychainItem];
NSMutableDictionary *dictionary = [[tokenKeychainItem objectForKey:kSecValueData] propertyList];
if (dictionary && [dictionary isKindOfClass:[NSMutableDictionary class]] && [dictionary count] > 0) {
self.tokenValue = [dictionary valueForKey:@"token"];
//push the view
SelectChildViewController* pushView = [[SelectChildViewController alloc]init];
[pushView setTokenValue:self.tokenValue];
[self.navigationController pushViewController:pushView animated:YES];
[pushView release];
}
((KidsAppDelegate*)[[UIApplication sharedApplication]delegate]).loginToken = self.tokenValue;
//[tokenKeychainItem resetKeychainItem];
//has token
/*LoginManager *tmp = [[LoginManager alloc]initWithUserName:@"" withPassword:@""withToken:self.tokenValue];
self.login = tmp;
[tmp release];
[self.login doLogin];*/
}
Array 写入：
if ([self.currentUserAccount length] > 0) {
KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc]initWithIdentifier:@"useraccount" accessGroup:nil];
if (keychainItem) {
if ([[keychainItem objectForKey:kSecAttrAccount] length ] > 0) {
//already has data
NSMutableArray *accountArray = [[keychainItem objectForKey:kSecAttrAccount] propertyList];
if (accountArray && [accountArray isKindOfClass:[NSMutableArray class]] && [accountArray count] > 0)
{
//just store the different user account
//NSUInteger indexOfTheObject = [accountArray indexOfObject: self.currentUserAccount];
//if (indexOfTheObject > [accountArray count]) {
[accountArray addObject:self.currentUserAccount];
[keychainItem setObject:[accountArray description] forKey:(id)kSecAttrAccount];
//}
for (int index = 0; index < [accountArray count]; index ++) {
NSLog(@"the value is %@",[accountArray objectAtIndex:index]);
}
}
}else{
//has no data
NSMutableArray *accountArray = [NSMutableArray arrayWithObject:self.currentUserAccount];
[keychainItem setObject:[accountArray description] forKey:(id)kSecAttrAccount];
}
}
}
Array 读取：
KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc]initWithIdentifier:@"useraccount" accessGroup:nil];
self.accountArray = [NSMutableArray array];
self.lastTimeAccount = @"";
if (keychainItem) {
//[keychainItem resetKeychainItem];
//first get the old token if found delete //kSecValueData
if ([[keychainItem objectForKey:kSecAttrAccount] length ] > 0) {
NSMutableArray *orignalArray = [[keychainItem objectForKey:kSecAttrAccount] propertyList];
if (orignalArray && [orignalArray isKindOfClass:[NSMutableArray class]] && [orignalArray count] > 0)
{
//move the repeated item
NSInteger index = [orignalArray count] - 1;
for (id object in [orignalArray reverseObjectEnumerator]) {
if ([orignalArray indexOfObject:object inRange:NSMakeRange(0, index)] != NSNotFound) {
[orignalArray removeObjectAtIndex:index];
}
index--;
}
}
self.accountArray = orignalArray;
if ([self.accountArray count] > 0) {
//self.lastTimeAccount = [self.accountArray objectAtIndex:[self.accountArray count] - 1];
self.switchBtn.hidden = NO;
}
}
[keychainItem release];
}
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