Programmatically set text color to primary android textview

Question

How can I set the text color of my TextView to ?android:textColorPrimary programmatically?

I've tried the code below but it sets the text color always to white for both textColorPrimary and textColorPrimaryInverse (Both of them are not white, I have checked through XML).

TypedValue typedValue = new TypedValue();
Resources.Theme theme = getActivity().getTheme();
theme.resolveAttribute(android.R.attr.textColorPrimaryInverse, typedValue, true);
int primaryColor = typedValue.data;

mTextView.setTextColor(primaryColor);

Answer 1

Finally I used the following code to get the primary text color of the theme -

// Get the primary text color of the theme
TypedValue typedValue = new TypedValue();
Resources.Theme theme = getActivity().getTheme();
theme.resolveAttribute(android.R.attr.textColorPrimary, typedValue, true);
TypedArray arr =
        getActivity().obtainStyledAttributes(typedValue.data, new int[]{
                android.R.attr.textColorPrimary});
int primaryColor = arr.getColor(0, -1);

Answer 2

You need to check if the attribute got resolved to a resource or a color value .

The default value of textColorPrimary is not a Color but a ColorStateList , which is a resource .

Kotlin solution

@ColorInt
fun Context.resolveColorAttr(@AttrRes colorAttr: Int): Int {
    val resolvedAttr = resolveThemeAttr(colorAttr)
    // resourceId is used if it's a ColorStateList, and data if it's a color reference or a hex color
    val colorRes = if (resolvedAttr.resourceId != 0) resolvedAttr.resourceId else resolvedAttr.data
    return ContextCompat.getColor(this, colorRes)
}

fun Context.resolveThemeAttr(@AttrRes attrRes: Int): TypedValue {
    val typedValue = TypedValue()
    theme.resolveAttribute(attrRes, typedValue, true)
    return typedValue
}

Usage

@ColorInt val color = context.resolveColorAttr(android.R.attr.textColorPrimaryInverse)

Answer 3

Extension version in kotlin

@ColorInt
fun Context.getColorResCompat(@AttrRes id: Int): Int {
    val resolvedAttr = TypedValue()
    this.theme.resolveAttribute(id, resolvedAttr, true)
    val colorRes = resolvedAttr.run { if (resourceId != 0) resourceId else data }
    return ContextCompat.getColor(this, colorRes)
}

usage:

textView.setTextColor(mActivity.getColorResCompat(android.R.attr.textColorPrimary))

Answer 4

This is the kotlin version of another reply. I just added it in case someone needed it. Worked fine for me.

fun resolveThemeAttr(context: Context, @AttrRes attrRes: Int): TypedValue {
    val theme = context.theme
    val typedValue = TypedValue()
    theme.resolveAttribute(attrRes, typedValue, true)
    return typedValue
}
@ColorInt
fun resolveColorAttr(context: Context, @AttrRes colorAttr: Int): Int {
    val resolvedAttr = resolveThemeAttr(context, colorAttr)
    // resourceId is used if it's a ColorStateList, and data if it's a color reference or a hex color
    val colorRes = if (resolvedAttr.resourceId != 0)
            resolvedAttr.resourceId
        else
            resolvedAttr.data
    return ContextCompat.getColor(context, colorRes)
}

Use:

@ColorInt val color = resolveColorAttr(view.context,
    android.R.attr.textColorPrimary)

Answer 5

Here's my solution for it:

@ColorInt
fun Context.getColorCompat(@ColorRes colorRes: Int) =  ContextCompat.getColor(this, colorRes)
@ColorInt
fun Fragment.getColorCompat(@ColorRes colorRes: Int) = activity!!.getColorCompat(colorRes)

@ColorInt
fun Activity.getColorCompatFromAttr(@AttrRes colorAttrRes: Int) = getColorCompat(getResIdFromAttribute(this, colorAttrRes))
@ColorInt
fun Fragment.getColorCompatFromAttr(@AttrRes colorAttrRes: Int) = activity!!.getColorCompatFromAttr(colorAttrRes)

getResIdFromAttribute

    @JvmStatic
    fun getResIdFromAttribute(activity: Activity, @AttrRes attr: Int): Int {
        if (attr == 0)
            return 0
        val typedValue = TypedValue()
        activity.theme.resolveAttribute(attr, typedValue, true)
        val resourceId = typedValue.resourceId
        return if (resourceId != 0)
            resourceId
        else typedValue.data
    }