Aplicar tema en Android

readme.md

Como aplicar tema en Android, modificando tambien el popup de la ActionBar

Asignar un tema en Java

setTheme(R.style.AppThemeGreen_NoActionBar);

attrs.xml

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

layout.xml

...
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="?attr/myToolbarStyle" />
...

styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="myToolbarStyle">@style/AppTheme.PopupOverlay</item>
    </style>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="myToolbarStyle">@style/AppTheme.PopupOverlay</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

    <!--
        <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
        <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
    -->

    <!-- Tema verde. -->
    <style name="AppThemeGreen" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="colorPrimary">@color/md_green_500</item>
        <item name="colorPrimaryDark">@color/md_green_800</item>
        <item name="colorAccent">@color/md_orange_300</item>

        <item name="android:textColorPrimary">@color/md_yellow_300</item>
        <item name="android:textColorSecondary">@color/md_red_300</item>
        <item name="android:textColorTertiary">@color/md_grey_500</item>

        <item name="myToolbarStyle">@style/AppThemeGreen.PopupOverlay</item>
    </style>

    <style name="AppThemeGreen.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="myToolbarStyle">@style/AppThemeGreen.PopupOverlay</item>
    </style>


    <style name="AppThemeGreen.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="AppThemeGreen.PopupOverlay" parent="ThemeOverlay.AppCompat.Dark" />


</resources>

ThemeUtils.java

package com.webserveis.app.splitpaywear;

import android.content.Context;
import android.content.res.Resources;
import android.os.Build;
import android.support.v4.content.ContextCompat;
import android.util.TypedValue;

/**
 * Stles.xml sample
 * <p>
 * <style name="AppThemeGreen" parent="Theme.AppCompat.Light.DarkActionBar">
 * <p>
 * <item name="colorPrimary">@color/md_green_500</item>
 * <item name="colorPrimaryDark">@color/md_green_800</item>
 * <item name="colorAccent">@color/md_orange_300</item>
 * <p>
 * <item name="android:textColor">#777733</item>
 * <item name="android:textColorPrimary">@color/md_yellow_300</item>
 * <item name="android:textColorSecondary">@color/md_red_300</item>
 * <item name="android:textColorTertiary">@color/md_grey_500</item>
 * <p>
 * </style>
 * <p>
 * <style name="AppThemeGreen.NoActionBar">
 * <item name="windowActionBar">false</item>
 * <item name="windowNoTitle">true</item>
 * </style>
 * <p>
 * Set the theme in activity before to setContentView(id_layout)
 * setTheme(R.style.AppThemeGreen_NoActionBar);
 * <p>
 * Get color colorAccent define in colors.xml
 * int intColor = ThemeUtils.getColor(MainActivity.this,R.color.colorAccent);
 * String hexColor = ThemeUtils.getColorHex(MainActivity.this,R.color.colorAccent);
 * <p>
 * Get value colorAccent from actual theme define in styles.xml
 * intColor = ThemeUtils.getThemeAttribute(MainActivity.this,R.attr.colorAccent);
 * <p>
 * Get value android:textColorSecondary define styles.xml
 * intColor = ThemeUtils.getThemeAttribute(MainActivity.this,android.R.attr.textColorSecondary);
 * <p>
 * Conver colors int to hex
 * String hexColor = ThemeUtils.colorIntToHex(intColor);
 * <p>
 * Set color text Best way
 * .setTextColor(Color.parseColor(hexColor));
 */
public class ThemeUtils {

//setTheme(android.R.style.Theme);


    public static int getThemeAttribute(Context context, int id) {
        TypedValue typedValue = new TypedValue();
        Resources.Theme theme = context.getTheme();
        theme.resolveAttribute(id, typedValue, true);
        return typedValue.data;
    }

    /**
     * Get color define in colors.xml
     *
     * @param context
     * @param id      Color id
     * @return value color
     * @usage getColor(this, R.color.colorAccent)
     */
    public static int getColor(Context context, int id) {
        final int version = Build.VERSION.SDK_INT;
        if (version >= 23) {
            return ContextCompat.getColor(context, id);
        } else {
            return context.getResources().getColor(id);
        }
    }

    public static String getColorHex(Context context, int id) {
        int intColor = 0;
        final int version = Build.VERSION.SDK_INT;
        if (version >= 23) {
            intColor = ContextCompat.getColor(context, id);
        } else {
            intColor = context.getResources().getColor(id);
        }
        return colorIntToHex(intColor);
    }

    public static String colorIntToHex(int intColor) {
        return String.format("#%06X", (0xFFFFFF & intColor));
    }
}