[MaterialToolbar] Cannot clear the navigation icon tint

[Back4fire]

I can use MaterialToolbar. setNavigationIconTint(@ColorInt int navigationIconTint) to set the tint of the navigation icon. But it seems that there is no way to clear it. After looking through the source code, I think it will resolve the issue that simply changing the type of the parameter "navigationIconTint" from "int" to "Integer".

[dsn5ft]

Hi @Back4fire, I started looking into this but the tricky thing is that DrawableCompat#setTint takes in an int.

However, there is a DrawableCompat#setTintList method which takes a nullable ColorStateList. I tried using that and it seems to work; however, a key detail is that it will also clear any tint like android:tint="?attr/colorControlNormal" in the vector drawable xml, meaning the navigation icon drawable will take on the color of the android:fillColor.

So basically I can add a materialToolbar.clearNavigationIconTint() method to do the above, but I'm not sure how useful it will be.

What's your exact use case? Why do you have to set a tint and then clear it?

[Back4fire]

Hi, @dsn5ft, sorry for not replying in time. In my project, there is an activity that loading data from the server continuously. If the data is abnormal, the navigation icon ( and some other elements in UI ) will be changed to a special color to alert the user. If the data is normal, the navigation icon should be changed back to the normal color.