Applying ColorFilter to ImageView with ShapedDrawable

问题

I have an ImageView with android:src set to a ShapedDrawable, namely a white circle. What I want is to colorize this ImageView in runtime responding to some events. imgView.setColorFilter seems to be solution, but after using this (tried different parameters) the image becomes invisible (I don't see it at the screen).

How to solve this? And are there better ways to have color circles?

回答1:

Alright, I had a quick play with this and noticed your issue of the circles disappearing. Without you describing what exactly you tried, I assume you haven't tried setting the color filter to the Drawable itself yet? (as opposed to the ImageView, which only seems to work with BitmapDrawables).

The following statements work perfectly fine for an xml-declared ShapeDrawable with white as initial color:

ImageView redCircle = (ImageView) findViewById(R.id.circle_red_imageview);
ImageView greenCircle = (ImageView) findViewById(R.id.circle_green_imageview);
ImageView blueCircle = (ImageView) findViewById(R.id.circle_blue_imageview);

// we can create the color values in different ways:
redCircle.getDrawable().setColorFilter(Color.RED, PorterDuff.Mode.MULTIPLY );
greenCircle.getDrawable().setColorFilter(0xff00ff00, PorterDuff.Mode.MULTIPLY );
blueCircle.getDrawable().setColorFilter(getResources().getColor(R.color.blue), PorterDuff.Mode.MULTIPLY );

The ShapeDrawable for completeness: (I set the size on the ImageView, see below)

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
    <solid android:color="@android:color/white" />
</shape>

And one of the ImageViews as example:

<ImageView
    android:id="@+id/circle_red_imageview"
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:padding="5dp"
    android:src="@drawable/circle_white" />

Visual result:

回答2:

If you want to change Image Color use

PorterDuff.Mode.SRC_ATOP instead
PorterDuff.Mode.MULTIPLY

in above example.

回答3:

You can use attribute android:tint in ImageView in xml.

Example:

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/your_drawable"
    android:tint="@color/your_color" />

Tested on Android 4.1.2 and 6.0.1

回答4:

You can do it very very simple using this library: https://github.com/jrvansuita/IconHandler

It will working like this:

Icon.on(yourImageView).color(R.color.your_color).icon(R.mipmap.your_icon).put();

来源：https://stackoverflow.com/questions/10114420/applying-colorfilter-to-imageview-with-shapeddrawable

标签

android

drawable

android-imageview

colorfilter

shapedrawable