ios导航栏又按钮添加图片后使其保持原色

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UIBarButtonItem *rightBarItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:@selector(addItemmmClick)];

    self.navigationItem.rightBarButtonItem = rightBarItem;

    [self.navigationItem.rightBarButtonItem setImage:[[UIImage imageNamed:@"nav_add"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

ios导航栏又按钮添加图片后使其保持原色

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原文地址：http://www.cnblogs.com/sunfuyou/p/5937836.html