From 7e201ba289537c2cf31add2bb19bd09fde71a209 Mon Sep 17 00:00:00 2001
From: Julian Raufelder <Julian@Raufelder.com>
Date: Thu, 7 Apr 2022 01:19:34 +0200
Subject: [PATCH] Fix crash on some devices when browsing images and clicking
 on screen

Fixes #429
---
 .../presentation/util/ViewPagerWorkaround.kt  | 32 +++++++++++++++++++
 .../res/layout/activity_image_preview.xml     |  2 +-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 presentation/src/main/java/org/cryptomator/presentation/util/ViewPagerWorkaround.kt

diff --git a/presentation/src/main/java/org/cryptomator/presentation/util/ViewPagerWorkaround.kt b/presentation/src/main/java/org/cryptomator/presentation/util/ViewPagerWorkaround.kt
new file mode 100644
index 00000000..69269bfc
--- /dev/null
+++ b/presentation/src/main/java/org/cryptomator/presentation/util/ViewPagerWorkaround.kt
@@ -0,0 +1,32 @@
+package org.cryptomator.presentation.util
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.MotionEvent
+import androidx.viewpager.widget.ViewPager
+
+/**
+ * Workaround for https://github.com/cryptomator/android/issues/429
+ * Source https://github.com/Baseflow/PhotoView/issues/31#issuecomment-19803926
+ */
+class ViewPagerWorkaround : ViewPager {
+
+	constructor(context: Context) : super(context)
+	constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
+
+	override fun onTouchEvent(ev: MotionEvent?): Boolean {
+		return try {
+			super.onTouchEvent(ev)
+		} catch (ex: IllegalArgumentException) {
+			false
+		}
+	}
+
+	override fun onInterceptTouchEvent(ev: MotionEvent?): Boolean {
+		return try {
+			super.onInterceptTouchEvent(ev)
+		} catch (ex: IllegalArgumentException) {
+			false
+		}
+	}
+}
diff --git a/presentation/src/main/res/layout/activity_image_preview.xml b/presentation/src/main/res/layout/activity_image_preview.xml
index a25fac71..24071d41 100644
--- a/presentation/src/main/res/layout/activity_image_preview.xml
+++ b/presentation/src/main/res/layout/activity_image_preview.xml
@@ -6,7 +6,7 @@
 	android:layout_height="match_parent"
 	android:background="@color/colorBlack">
 
-	<androidx.viewpager.widget.ViewPager
+	<org.cryptomator.presentation.util.ViewPagerWorkaround
 		android:id="@+id/viewPager"
 		android:layout_width="match_parent"
 		android:layout_height="match_parent" />