iOS设置导航栏右侧图片为真实颜色, 而非填充颜色

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/NLYNN/article/details/79892545

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:@"icon_"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)] style:(UIBarButtonItemStylePlain) target:self action:@selector(actionSearchBtnClick)];

[[UIImage imageNamed:@"icon_"] imageWithRenderingMode:(UIImageRenderingModeAlwaysOriginal)]