MailCore2搜索表达式有两个以上的参数？

Question

如何使用两个以上的表达式搜索mailcore2？

下面的示例包括exprSinceLastTime以及exprFrom和exprSubject。但是，searchAdd只有两个参数的空间。

如何添加其他搜索表达式，例如exprSinceLastTime？

 NSTimeInterval oneHour = 3600;
 NSDate *now = [NSDate dateWithTimeIntervalSinceNow:oneHour];
 MCOIMAPSearchExpression * exprSinceLastTime = [MCOIMAPSearchExpression searchSinceReceivedDate:now];


MCOIMAPSearchExpression * exprFrom = [MCOIMAPSearchExpression searchFrom: @"apple"];
MCOIMAPSearchExpression * exprSubject = [MCOIMAPSearchExpression searchSubject: @"cloudkit"];
MCOIMAPSearchExpression * expr = [MCOIMAPSearchExpression searchAnd: exprFrom other: exprSubject];

MCOIMAPSearchOperation* searchOperation = [session searchExpressionOperationWithFolder: folder expression: expr];

Answer 1

我发布以下答案。这很简单。我不得不在这个问题上睡觉，想到明显的答案： - ）

 NSTimeInterval oneHour = 3600; // magic number! 60 seconds
 NSDate *now = [NSDate dateWithTimeIntervalSinceNow:oneHour];
 MCOIMAPSearchExpression * exprSinceLastTime = [MCOIMAPSearchExpression searchSinceReceivedDate:now];


MCOIMAPSearchExpression* exprFrom = [MCOIMAPSearchExpression searchFrom: @"youtube"];
MCOIMAPSearchExpression* exprSubject = [MCOIMAPSearchExpression searchSubject: @"video"];
MCOIMAPSearchExpression* expr = [MCOIMAPSearchExpression searchAnd: exprFrom other: exprSubject];
MCOIMAPSearchExpression* expr2 = [MCOIMAPSearchExpression searchAnd: exprSinceLastTime other: expr];

MCOIMAPSearchOperation* searchOperation = [session searchExpressionOperationWithFolder: folder expression: expr2];