Issue
When I use resolveAttribute()
to find out a color value of ?attr/colorControlNormal
, I got 236
:
TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(R.attr.colorControlNormal, typedValue, true);
int color = typedValue.data;
// 236
But when I use an XML layout with the following TextView
element:
<TextView
android:id="@+id/textView"
style="?android:attr/textAppearance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="?attr/colorControlNormal"
android:text="@null" />
...and the following Java code:
View textView = findViewById(R.id.textView);
int color = ((TextView) textView).getCurrentTextColor();
// -1979711488
I got a color value of -1979711488
Why those results vary? I expected to get same color values, but they are not.
The second approach (I believe) returns a correct color value. Why is my first approach wrong?
I would prefer to obtain the color value of ?attr/colorControlNormal
without a need of using actual element. How can I do that?
Solution
I believe instead of this:
TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(R.attr.colorControlNormal, typedValue, true);
int color = typedValue.data;
You should do this:
TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(R.attr.colorControlNormal, typedValue, true);
int color = ContextCompat.getColor(this, typedValue.resourceId)
Answered By - azizbekian
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