setColorFilter 不工作 [英] setColorFilter not working

问题描述

我正在尝试在图像视图上实现一个简单的颜色过滤器，以将黑色图像变成白色图像.为了实现这一点，我做了以下事情:

I'm trying to implement a simple colorfilter on an imageview to turn the black image into a white image. In order to achieve that I do the following:

    weatherImg.setColorFilter(Color.BLACK, PorterDuff.Mode.MULTIPLY);
    weatherImg.setImageResource(R.drawable.b_clouded_rain);

我也试过把彩色滤镜里的颜色改成红色和白色，但都没有效果，我做错了什么?

I've also tried to change to color in the color filter to red and white but all of them have no effect, what am I doing wrong?

推荐答案

尽管我讨厌回答自己的问题，但我发现了问题:我应该使用:

As much as I hate to answer my own questions I found the problem: I should've used:

   weatherImg.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP);

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