DrawableStartButton, and Icon Drawable for Android

drawable_start_button.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <attr name="drawableStartButton" format="reference" />

    <declare-styleable name="DrawableStartButton">
        <attr name="drawableStart" />
        <attr name="text" />
    </declare-styleable>
</resources>

DrawableStartButton.java

/** A button that allows you to add a drawable to the start of the text. */
public class DrawableStartButton extends FrameLayout {

    /** The textview that sits on top of the framelayout that contains the image and the text. */
    @BindView(R.id.drawable_start_textview) TextView textview;

    public DrawableStartButton(Context context, AttributeSet attrs) {
        // Trick the framelayout to look like a button
        this(context, attrs, R.attr.drawableStartButton);
    }

    public DrawableStartButton(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        inflate(context, R.layout.view_drawable_start_button, this);
        ButterKnife.bind(this);

        TypedArray a = context.getTheme().obtainStyledAttributes(
                attrs,  R.styleable.DrawableStartButton,
                defStyleAttr, R.style.Theme_Button_Secondary);

        Drawable drawable = a.getDrawable(R.styleable.DrawableStartButton_drawableStart);
        CharSequence text = a.getText(R.styleable.DrawableStartButton_text);

        textview.setText(text);
        textview.setCompoundDrawablesWithIntrinsicBounds(drawable, null, null, null);

        a.recycle();
    }
}

view_drawable_start_button.xml

<?xml version="1.0" encoding="utf-8"?>
<merge
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    >

    <TextView
        android:id="@+id/drawable_start_textview"
        style="@style/Theme.Button.Secondary"
        android:theme="@style/Theme.Button.Secondary"
        android:clickable="false"
        android:background="@null"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:drawablePadding="10dp"
        android:layout_gravity="center"
        tools:text="Testing"
        />

</merge>