From 9faa0ac03796a18590f6b7177efb9f4dc7dd992a Mon Sep 17 00:00:00 2001
From: Thomas Gransden <thomas.gransden@slimmingworld.co.uk>
Date: Sun, 15 May 2022 13:42:06 +0100
Subject: [PATCH] Add brand coloring

---
 .../com/example/alertdialog/MainActivity.java | 62 +++++++++++++++++--
 app/src/main/res/values/colors.xml            |  1 +
 app/src/main/res/values/themes.xml            |  4 +-
 3 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/example/alertdialog/MainActivity.java b/app/src/main/java/com/example/alertdialog/MainActivity.java
index c83c012..bf3c618 100644
--- a/app/src/main/java/com/example/alertdialog/MainActivity.java
+++ b/app/src/main/java/com/example/alertdialog/MainActivity.java
@@ -1,15 +1,20 @@
 package com.example.alertdialog;
 
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.LinearLayoutCompat;
-
-import android.content.DialogInterface;
+import android.graphics.Paint;
+import android.os.Build;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
+import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.NumberPicker;
+import android.widget.TextView;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+
+import java.lang.reflect.Field;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -36,21 +41,68 @@ public void openPickerAlert(View view){
         NumberPicker np1 = new NumberPicker(this);
         np1.setMinValue(0);
         np1.setMaxValue(20);
+        np1.setDescendantFocusability(NumberPicker.FOCUS_BLOCK_DESCENDANTS);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            np1.setTextColor(getResources().getColor(R.color.sw_red));
+        } else {
+            setNumberPickerTextColor(np1, getResources().getColor(R.color.sw_red));
+        }
         np1.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 50));
 
         NumberPicker np2 = new NumberPicker(this);
         np2.setMinValue(0);
         np2.setMaxValue(20);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            np2.setTextColor(getResources().getColor(R.color.sw_red));
+        } else {
+            setNumberPickerTextColor(np2, getResources().getColor(R.color.sw_red));
+        }
+
         np2.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 50));
 
         parent.addView(np1);
         parent.addView(np2);
 
+        TextView textView = new TextView(this);
+        textView.setText("Select an option");
+        textView.setPadding(20, 30, 20, 30);
+        textView.setTextSize(20F);
+        textView.setTextColor(getResources().getColor(R.color.sw_red));
+
         builder.setView(parent);
+        builder.setCustomTitle(textView);
 
 
 
         builder.show();
 
     }
+
+    public static void setNumberPickerTextColor(NumberPicker numberPicker, int color)
+    {
+
+        try{
+            Field selectorWheelPaintField = numberPicker.getClass()
+                    .getDeclaredField("mSelectorWheelPaint");
+            selectorWheelPaintField.setAccessible(true);
+            ((Paint)selectorWheelPaintField.get(numberPicker)).setColor(color);
+        }
+        catch(NoSuchFieldException e){
+            Log.w("setNumberPickerTextColor", e);
+        }
+        catch(IllegalAccessException e){
+            Log.w("setNumberPickerTextColor", e);
+        }
+        catch(IllegalArgumentException e){
+            Log.w("setNumberPickerTextColor", e);
+        }
+
+        final int count = numberPicker.getChildCount();
+        for(int i = 0; i < count; i++){
+            View child = numberPicker.getChildAt(i);
+            if(child instanceof EditText)
+                ((EditText)child).setTextColor(color);
+        }
+        numberPicker.invalidate();
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index f8c6127..69bfe8e 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -7,4 +7,5 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="sw_red">#D3072A</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 5bf36dd..66e2829 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -2,11 +2,11 @@
     <!-- Base application theme. -->
     <style name="Theme.AlertDialog" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimary">@color/sw_red</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
         <item name="colorOnPrimary">@color/white</item>
         <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondary">@color/white</item>
         <item name="colorSecondaryVariant">@color/teal_700</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->