如何刷新Finder窗口？ [英] How to refresh finder window?

问题描述

我要刷新在Finder应用程序特定的文件/文件夹图标。

I want to refresh icon for particular file/folder in Finder application.

FNNotifyByPath( (const UInt8 *)folderPath, kFNDirectoryModifiedMessage, kNilOptions );  

FNNotifyByPath 不工作这一点。
我现在想用的AppleScript

FNNotifyByPath is not working for this. Now i am trying with appleScript

+(void) refreshIconForItem : (NSString *)itemPath
{
    NSString *source=[NSString stringWithFormat:@"tell application \"Finder\" to update \"%@\"",[NSString stringWithUTF8String:itemPath]];
    NSAppleScript *update=[[NSAppleScript alloc] initWithSource:source];
    NSDictionary *err;
    [update executeAndReturnError:&err];
}

但这种功能也不能正常工作。

but this function is also not working.

任何人都可以请帮我吗？

Can anyone please help me out?

推荐答案

你是否检查了 executeAndReturnError后 ERR 词典的值：打电话？

Did you check the value of the err dictionary after the executeAndReturnError: call?

正确的AppleScript语法是：

The correct AppleScript syntax would be:

@告诉应用程序\\查找\\更新POSIX文件\\％@ \\

@"tell application \"Finder\" to update POSIX file \"%@\""

编辑补充：或者，你能下降到的AppleEvent级别：

EDIT TO ADD: Alternately, you could drop down to the AppleEvent level:

OSStatus    SendFinderSyncEvent( const FSRef* inObjectRef )
{
    AppleEvent  theEvent = { typeNull, NULL };
    AppleEvent  replyEvent = { typeNull, NULL };
    AliasHandle itemAlias = NULL;
    const OSType    kFinderSig = 'MACS';

    OSStatus    err = FSNewAliasMinimal( inObjectRef, &itemAlias );
    if (err == noErr)
    {
        err = AEBuildAppleEvent( kAEFinderSuite, kAESync, typeApplSignature,
            &kFinderSig, sizeof(OSType), kAutoGenerateReturnID,
            kAnyTransactionID, &theEvent, NULL, "'----':alis(@@)", itemAlias );

        if (err == noErr)
        {
            err = AESendMessage( &theEvent, &replyEvent, kAENoReply,
                kAEDefaultTimeout );

            AEDisposeDesc( &replyEvent );
            AEDisposeDesc( &theEvent );
        }

        DisposeHandle( (Handle)itemAlias );
    }

    return err;
}

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