NSOpenPanel runModalforTypes

Question

我从Zarra/Long的“核心动画”一书中得到了这个代码。由于以下错误，它将无法编译：“不推荐使用‘runModalForTypes’”

- (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" ;]]
}
}

有可能解决问题吗？

Answer 1

由于NSOpenPanel继承自NSSavePanel，您会发现这个方法适合：

if ([openPanel runModal] == NSOKButton)

请参阅NSSavePanel和NSOpenPanel的文档