setColorFilter not working

问题

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);

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?

回答1:

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);

回答2:

It depends on what kind of filtering you want to apply. If yout want to apply a new color on an image with transparencies on it, that's what worked for me:

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

If you want to learn more about this PorterDuff filters, I found a goog article that helped me understand: http://www.ibm.com/developerworks/java/library/j-mer0918/ give it a read :)

回答3:

Had the same issue on Android 6. Solved by using ImageView.getDrawable().setColorFilter() instead of ImageView.setColorFilter().

回答4:

We use this code

Drawable drawable = DrawableCompat.wrap(getDrawable(drawableResource));
        drawable.mutate();
        DrawableCompat.setTint(drawable, getColor(color));
        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());

public static int getColor(int id) {
        return ContextCompat.getColor(getInstance().context, id);
    }

public static Drawable getDrawable(int id) {
        return ContextCompat.getDrawable(getInstance().context, id);
    }

回答5:

I was having issues with setColorFilter on a Samsung S3 running 4.3 and the only way I could get the filter to work was by applying it in the draw(Canvas canvas) method:

public class ColouredDrawable extends BitmapDrawable {

private ColorFilter mColorFilter;

public ColouredDrawable(Bitmap toTransform, int toColour, Resources resources) {
    super(resources, toTransform);
    float[] matrix = {
            0, 0, 0, 0, ((toColour & 0xFF0000) / 0xFFFF),
            0, 0, 0, 0, ((toColour & 0xFF00) / 0xFF),
            0, 0, 0, 0, (toColour & 0xFF),
            0, 0, 0, 1, 0 };
    mColorFilter = new ColorMatrixColorFilter(matrix);
}

@Override
public void draw(Canvas canvas) {
    setColorFilter(mColorFilter);
    super.draw(canvas);
}

Simple applying setColorFilter to the BitmapDrawable didn't seem to have any effect.

回答6:

For me only this solution worked:

image.setColorFilter(Color.BLACK, PorterDuff.Mode.MULTIPLY);
image.setImageResource(R.drawable.img);

filter applies if R.drawable.img is vector image, and has no effect for raster resource

回答7:

For me, simply calling setColorFilter() on the ImageView wasn't working.

imageView.setColorFilter(ResourcesCompat.getColor(resources, color, null)) //didnt work on 21, only 22+

For whatever reason, on API 21, the only way I could get setColorFilter() to work properly was to post the change to the views message queue.

imageView.post { imageView.setColorFilter(ResourcesCompat.getColor(resources, color, null)) } //this works on 21+

回答8:

For Android 4.3 and 4.4, setColorFilter does not work. Use DrawableCompat instead.

    val drawable = DrawableCompat.wrap(ContextCompat.getDrawable(
            context,
            R.drawable.b_clouded_rain));
    DrawableCompat.setTint(drawable, foregroundColor);
    DrawableCompat.setTintMode(drawable, PorterDuff.Mode.SRC_IN)
            .setColorFilter(Color.BLACK, PorterDuff.Mode.MULTIPLY);

    weatherImg.setImageResource(R.drawable.b_clouded_rain);

回答9:

I run into the same issue when using multiply

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

This worked for png icons but not for vector graphics. Changing it to the default works for both:

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

来源：https://stackoverflow.com/questions/18954042/setcolorfilter-not-working

标签

android

imageview

colorfilter