android - 像 Support NavigationView 中的图标着色

Question

如果图标着色，NavigationView 会对图标进行着色。我的图标是绿色的，在 NavigationView 中它是灰色。这是如何工作的？

我想自己在另一个 View 中执行此操作，但我没有找到 NavigationView 是如何执行此操作的。

Answer 1

这blog post解释了可绘制对象的 AppCompat 着色。这是您要找的吗？

The Drawable tinting methods added in Lollipop are super useful for letting you dynamically tint assets. AppCompat had its own baked in implementation in the v21 support library and we’ve now extracted that into DrawableCompat in support-v4 for everyone to use. It’s important to know how it works though.

Drawable drawable = ...;

// Wrap the drawable so that future tinting calls work 
// on pre-v21 devices. Always use the returned drawable.
drawable = DrawableCompat.wrap(drawable);

// We can now set a tint 
DrawableCompat.setTint(drawable, Color.RED);
// ...or a tint list 
DrawableCompat.setTintList(drawable, myColorStateList);
// ...and a different tint mode
DrawableCompat.setTintMode(drawable, PorterDuff.Mode.SRC_OVER);

或者如果你只想给 ImageView 着色，你可以这样做:

ImageView image = (ImageView) findViewById(R.id.image);
image.setColorFilter(...);