Improve image caching (#327)

* Update to support rebase

* Prevent Glide from opening svg images

app/src/main/java/apps/amine/bou/readerforselfoss/ImageActivity.kt

@@ -21,7 +21,7 @@ class ImageActivity : AppCompatActivity() {
         supportActionBar?.setDisplayShowTitleEnabled(false)
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
 
-        allImages = intent.getStringArrayListExtra("allImages")
+        allImages = intent.getStringArrayListExtra("allImages") as ArrayList<String>
         position = intent.getIntExtra("position", 0)
 
         pager.adapter = ScreenSlidePagerAdapter(supportFragmentManager)

app/src/main/java/apps/amine/bou/readerforselfoss/api/selfoss/SelfossModels.kt

@@ -141,7 +141,14 @@ data class Item(
         var allImages = ArrayList<String>()
 
         for ( image in Jsoup.parse(content).getElementsByTag("img")) {
-            allImages.add(image.attr("src"))
+            val url = image.attr("src")
+            if (url.toLowerCase().contains(".jpg") ||
+                    url.toLowerCase().contains(".jpeg") ||
+                    url.toLowerCase().contains(".png") ||
+                    url.toLowerCase().contains(".webp"))
+            {
+                allImages.add(url)
+            }
         }
         return allImages
     }

app/src/main/java/apps/amine/bou/readerforselfoss/fragments/ImageFragment.kt

@@ -17,7 +17,7 @@ class ImageFragment : Fragment() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        imageUrl = arguments!!.getString("imageUrl")!!
+        imageUrl = requireArguments().getString("imageUrl")!!
     }
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {