OSX Open Finder和显示图像

我不是100%肯定我遵循'开放查找器'的意思,而不是将焦点从你的应用程序切换到查找程序我认为你需要这样的东西:

- (IBAction)clickOnImageView:(id)sender {

//create open panel...
NSOpenPanel* openPanel = [NSOpenPanel openPanel];

//set restrictions / allowances...
[openPanel setAllowsMultipleSelection: NO];
[openPanel setCanChooseDirectories:NO];
[openPanel setCanCreateDirectories:NO];
[openPanel setCanChooseFiles:YES];
    //only allow images...
[openPanel setAllowedFileTypes:[NSImage imageFileTypes]];

//open panel as sheet on main window...
[openPanel beginSheetModalForWindow:[self window] completionHandler:^(NSInteger result) {

    if (result == NSFileHandlingPanelOKButton) {

        //get url (should only be one due to restrictions)...
        for( NSURL* URL in [openPanel URLs] ) {

            //get NSImage from path...
            NSImage* selectedImage = [[NSImage alloc] initWithContentsOfFile:[URL path]];

            [imageView setImage:selectedImage];

        }

    }
}];

}

基本上是一个NSOpenPanel,你只能选择图像文件,结果图像将放在NSImageView中(在这个例子中imageView).