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How to get the? Attr / value programmatically

I'm trying to do some kind of custom view style and I'm having problems displaying the styled attributes from the theme correctly.

For example, I would like to get the theme's EditText Text Color.

Looking at the theme stack, you can see that my theme is using it for the EditText's styles:

<style name="Base.V7.Widget.AppCompat.EditText" parent="android:Widget.EditText">
    <item name="android:background">?attr/editTextBackground</item>
    <item name="android:textColor">?attr/editTextColor</item>
    <item name="android:textAppearance">?android:attr/textAppearanceMediumInverse</item>
</style>

What am I looking for, how do I get it? attr / editTextColor

(Aka, the value assigned by the theme for "android: editTextColor")

Searching through google, I found enough answer:

TypedArray a = mView.getContext().getTheme().obtainStyledAttributes(R.style.editTextStyle, new int[] {R.attr.editTextColor});
int color = a.getResourceId(0, 0);
a.recycle();

But I'm sure I must be doing it wrong as it always shows up as black and not gray? Can anyone please help?

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2 answers


As @pskink commented:

    TypedValue value = new TypedValue();
    getContext().getTheme().resolveAttribute(android.R.attr.editTextColor, value, true);
    getView().setBackgroundColor(value.data);


will pull the attribute from the currently assigned topic.

Thanks @pskink!

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Have you tried this?

EDIT: This is my short answer if you want a complete answer.

Your attrs.xml file:

<resources>

    <declare-styleable name="yourAttrs">
        <attr name="yourBestColor" format="color"/>
    </declare-styleable>

</resources>

EDIT 2: Sorry, I forgot to show how I use the attr value in layout.xml, so:



<com.custom.coolEditext
    android:id="@+id/superEditText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:yourBestColor="@color/any_color"/>

and then in your normal Editext:

TypedArray a = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.yourAttrs, 0, 0);

try {
    int colorResource = a.getColor(R.styleable.yourAttrs_yourBestColor, /*default color*/ 0);
} finally {
    a.recycle();
}

I'm not sure if this is the answer you want, but it might put you on the right track.

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