[英]False Applescript result in Cocoa
I have 3 tracks in iTunes and run this procedure: 我在iTunes中有3首曲目,并运行以下过程:
-(IBAction)reloadButtonClick:(id)sender;
{
NSAppleScript *script ;
NSString *source ;
NSString *result;
NSDictionary *errorDic ;
NSAppleEventDescriptor *ed;
int total;
source= @"tell application \"iTunes\" to get count of tracks of playlist 1";
script = [[NSAppleScript alloc] initWithSource:source];
ed = [script executeAndReturnError:&errorDic];
if (ed == nil)
{
NSAlert *alert = [[NSAlert alloc]init];
[alert setMessageText:@"Error Occurred"];
[alert runModal];
[alert release];
}
result = [ed stringValue];
total = [result intValue];
NSAlert *alert = [[NSAlert alloc]init];
[alert setMessageText:[NSString stringWithFormat:@"%d",total]];
[alert runModal];
[alert release];
}
It always returns 0 and error is not occurred. 它始终返回0,并且不会发生错误。 But, if I execute the script inside Script Editor, it returns 3.
但是,如果我在脚本编辑器中执行脚本,它将返回3。
Anyone know what is wrong ? 有人知道怎么了吗? Is AppleScript inside cocoa unstable ?
可可里面的AppleScript不稳定吗?
Thanks. 谢谢。
PS: my iTunes version is 8.0.2 (20) PS:我的iTunes版本是8.0.2(20)
This bit looks suspect; 这看起来有点可疑; why aren't you using total = [ed intValue]:
为什么不使用total = [ed intValue]:
result = [ed stringValue];
total = [result intValue];
I just tried your code in a foundation tool. 我只是在基础工具中尝试过您的代码。 I changed it a little:
我做了一点改变:
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSAppleScript *script ;
NSString *source ;
NSString *result;
NSDictionary *errorDic ;
NSAppleEventDescriptor *ed;
int total;
source= @"tell application \"iTunes\" to get count of tracks of playlist 1";
script = [[NSAppleScript alloc] initWithSource:source];
ed = [script executeAndReturnError:&errorDic];
if (ed == nil)
{
NSLog(@"Error Occurred");
}
result = [ed stringValue];
total = [result intValue];
NSLog( @"result: %d", total );
[pool drain];
return 0;
}
With iTunes 9.0.2 (on Mac OS X 10.6.2). 使用iTunes 9.0.2(在Mac OS X 10.6.2上)。 It worked fine.
工作正常。 It gave me the correct result for my first playlist, "Library".
它为我的第一个播放列表“库”提供了正确的结果。
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