objective-c - NSMenuitem 模板图像色调颜色不改变

Question

我有一个自定义 View ，其中包含 ImageView 图像，我将 NSImageNameMenuOnStateTemplate 设置为具有色调颜色的 imageview，但色调颜色未应用

NSImage *tintImage = [self tintedImage:[NSImage imageNamed:NSImageNameMenuOnStateTemplate] withTintColor:NSColor.whiteColor];

myimageView.image = tintImage

-(NSImage*)tintedImage:(NSImage*)image withTintColor:(NSColor*)color{
    NSImage *tinted = [image copy];
    [tinted lockFocus];
    [color set];

    NSRect imageRect = {NSZeroPoint, [image size]};
    NSRectFillUsingOperation(imageRect, NSCompositingOperationSourceAtop);
    [image unlockFocus];
    return tinted;
}

非常感谢任何帮助..

Answer 1

你真的应该避免使用lockFocus/unlockFocus。它们已被弃用，并且您通过锁定一张图像并解锁另一张图像来滥用它们。使用 `+[NSImage imageWithSize:flipped:drawingHandler:]

作为 NSImage 的类别补充:

- (NSImage *)imageWithSolidFillColor:(NSColor *)color
{
    return [NSImage imageWithSize:self.size flipped:false drawingHandler:^BOOL(NSRect dstRect) {
        [self drawInRect:dstRect fromRect:NSZeroRect operation:NSCompositingOperationSourceOver fraction:1.0];
        [color set];
        NSRectFillUsingOperation(dstRect, NSCompositeSourceAtop);
        return YES;
    }];
}