NSOpenPanel runModalforTypes

Question

我从Zarra / Long的核心动画一书中得到了这段代码。由于以下错误，它将无法编译：＆＃34;＆＃39; runModalForTypes＆＃39;已被弃用＆＃34;

- (IBAction)setMovieLocation:(id)sender {
NSOpenPanel *openPanel;

openPanel = [NSOpenPanel openPanel];
[openPanel setCanChooseDirectories: NO];
[openPanel setAllowsMultipleSelection: NO];
[openPanel setResolvesAliases: NO];
[openPanel setCanChooseFiles: NO];

if ([openPanel runModalForTypes:nil] == NSOKButton)
{
    [[qcLayer setValue:openPanel filename]
     forInputKey:[@"movie_location" ;]]
}
}

有可能修复吗？

Answer 1

当NSOpenPanel继承自NSSavePanel时，您会发现此方法适合：

if ([openPanel runModal] == NSOKButton)

请参阅NSSavePanel和NSOpenPanel

的文档