Created
May 31, 2013 15:25
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時間まわりの処理
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// 現在時間を取得 | |
NSDate *now = [NSDate date]; | |
NSLog(@"now:%@", [now toLocalTime]); // now:2013-06-01 00:19:46 +0000 | |
// 現在時間にインターバル時間を足す | |
NSTimeInterval interval = 3600; // 秒 | |
NSDate *after = [now dateByAddingTimeInterval:interval]; | |
NSLog(@"after:%@", [after toLocalTime]); // after:2013-06-01 01:19:46 +0000 | |
// 時間の判定 | |
NSComparisonResult result = [now compare:after]; | |
NSLog(@"result:%ld", result); // result:-1 | |
result = [after compare:now]; | |
NSLog(@"result:%ld", result); // result:1 | |
result = [now compare:now]; | |
NSLog(@"result:%ld", result); // result:0 | |
// 文字列からNSDateへ | |
NSString *str = [dic objectForKey:@"datetime"]; | |
NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; | |
[formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; | |
NSDate *messageTime = [formatter dateFromString:str]; |
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