Как получить доступ к Android вашего пользовательского представления: layout_width и android: layout_height values?
Пример xml:
<com.example.CustomButton
android:id="@+id/btn"
android:layout_width="150dp"
android:layout_height="70dp" />
В CustomButton:
@Override
protected void onMeasure(int widthSpec, int heightSpec) {
int measuredWidth = MeasureSpec.getSize(widthSpec);
int measuredHeight = MeasureSpec.getSize(heightSpec);
// How can we measure based on android:layout_width, android:layout_height?
// Currently this implementation measures off the parent's values
setMeasuredDimension(measuredWidth, measuredHeight);
}