From 42b0fd4398fa54945fafc085b73054c2bc3df965 Mon Sep 17 00:00:00 2001
From: Dhruv <dhruv@makenotion.com>
Date: Tue, 14 Sep 2021 16:11:02 -0400
Subject: [PATCH] Add ability to change dialog style to allow alert dialog
 customizations

This allows the ability to change alert dialog style and also provides the ability
to set status bar color. Can even be set to transparent to allow and draw behind without
translucency.
---
 .../imageviewer/StfalconImageViewer.java      | 23 +++++++++++++++++++
 .../imageviewer/viewer/builder/BuilderData.kt |  5 +++-
 .../viewer/dialog/ImageViewerDialog.kt        |  9 +++++++-
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/imageviewer/src/main/java/com/stfalcon/imageviewer/StfalconImageViewer.java b/imageviewer/src/main/java/com/stfalcon/imageviewer/StfalconImageViewer.java
index 61d8179a..3be8c4cc 100644
--- a/imageviewer/src/main/java/com/stfalcon/imageviewer/StfalconImageViewer.java
+++ b/imageviewer/src/main/java/com/stfalcon/imageviewer/StfalconImageViewer.java
@@ -17,6 +17,7 @@
 package com.stfalcon.imageviewer;
 
 import android.content.Context;
+import android.os.*;
 import android.util.Log;
 import android.view.View;
 import android.widget.ImageView;
@@ -248,6 +249,28 @@ public Builder<T> withHiddenStatusBar(boolean value) {
             return this;
         }
 
+        /**
+         * Sets alert dialog style. ImageViewerDialog.Default by default.
+         *
+         * @return This Builder object to allow calls chaining
+         */
+        public Builder<T> withDialogStyle(int value) {
+            this.data.setDialogStyle(value);
+            return this;
+        }
+
+        /**
+         * Sets status bar transparency to allow drawing underneath it. False by default.
+         * Works only on API 21 and above.
+         *
+         * @return This Builder object to allow calls chaining
+         */
+        @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+        public Builder<T> shouldStatusBarTransparent(boolean value) {
+            this.data.setShouldStatusBarTransparent(value);
+            return this;
+        }
+
         /**
          * Enables or disables zooming. True by default.
          *
diff --git a/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/builder/BuilderData.kt b/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/builder/BuilderData.kt
index 7153a95a..c9500200 100644
--- a/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/builder/BuilderData.kt
+++ b/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/builder/BuilderData.kt
@@ -19,6 +19,7 @@ package com.stfalcon.imageviewer.viewer.builder
 import android.graphics.Color
 import android.view.View
 import android.widget.ImageView
+import com.stfalcon.imageviewer.R
 import com.stfalcon.imageviewer.listeners.OnDismissListener
 import com.stfalcon.imageviewer.listeners.OnImageChangeListener
 import com.stfalcon.imageviewer.loader.ImageLoader
@@ -35,7 +36,9 @@ internal class BuilderData<T>(
     var imageMarginPixels: Int = 0
     var containerPaddingPixels = IntArray(4)
     var shouldStatusBarHide = true
+    var shouldStatusBarTransparent = false
     var isZoomingAllowed = true
     var isSwipeToDismissAllowed = true
     var transitionView: ImageView? = null
-}
\ No newline at end of file
+    var dialogStyle: Int = R.style.ImageViewerDialog_Default
+}
diff --git a/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/dialog/ImageViewerDialog.kt b/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/dialog/ImageViewerDialog.kt
index bfb14f57..e2648285 100644
--- a/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/dialog/ImageViewerDialog.kt
+++ b/imageviewer/src/main/java/com/stfalcon/imageviewer/viewer/dialog/ImageViewerDialog.kt
@@ -17,7 +17,9 @@
 package com.stfalcon.imageviewer.viewer.dialog
 
 import android.content.Context
+import android.os.Build
 import android.view.KeyEvent
+import android.view.WindowManager
 import android.widget.ImageView
 import androidx.appcompat.app.AlertDialog
 import com.stfalcon.imageviewer.R
@@ -37,7 +39,7 @@ internal class ImageViewerDialog<T>(
         get() = if (builderData.shouldStatusBarHide)
             R.style.ImageViewerDialog_NoStatusBar
         else
-            R.style.ImageViewerDialog_Default
+            builderData.dialogStyle
 
     init {
         setupViewerView()
@@ -50,6 +52,11 @@ internal class ImageViewerDialog<T>(
                 setOnShowListener { viewerView.open(builderData.transitionView, animateOpen) }
                 setOnDismissListener { builderData.onDismissListener?.onDismiss() }
             }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            if (builderData.shouldStatusBarTransparent) {
+                dialog.window?.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
+            }
+        }
     }
 
     fun show(animate: Boolean) {