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app/build.gradle

@@ -55,4 +55,9 @@ dependencies {
     // Coroutine Lifecycle Scopes
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1"
     implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.3.1"
+
+    implementation 'com.github.bumptech.glide:glide:4.13.0'
+
+    // swipe refresh layout
+    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,12 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.plcoding.androidstorage">
 
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <!--Write storage permission required only for the devices running on API level 28 & below-->
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/com/plcoding/androidstorage/BaseViewHolder.kt

@@ -0,0 +1,38 @@
+package com.plcoding.androidstorage
+
+import android.util.Log
+import androidx.constraintlayout.widget.ConstraintSet
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
+import com.plcoding.androidstorage.databinding.ItemLoadingBinding
+import com.plcoding.androidstorage.databinding.ItemPhotoBinding
+
+/**
+ * Created By Dhruv Limbachiya on 04-03-2022 12:05 PM.
+ */
+sealed class BaseViewHolder(binding:ViewBinding) : RecyclerView.ViewHolder(binding.root) {
+
+    class ImageViewHolder(private val binding: ItemPhotoBinding) : BaseViewHolder(binding) {
+        fun bind (item: SharedStoragePhoto,onPhotoClick: (SharedStoragePhoto) -> Unit) {
+
+            binding.ivPhoto.setImageURI(item.contentUri)
+
+//            val aspectRatio = binding.ivPhoto.width.toFloat() / binding.ivPhoto.height.toFloat()
+//
+//            ConstraintSet().apply {
+//                clone(binding.root)
+//                setDimensionRatio(binding.ivPhoto.id, aspectRatio.toString())
+//                applyTo(binding.root)
+//            }
+
+            binding.ivPhoto.setOnLongClickListener {
+                onPhotoClick(item)
+                true
+            }
+
+            Log.i("BaseViewHolder", "bind: ")
+        }
+    }
+
+    class ProgressViewHolder(binding:ItemLoadingBinding) : BaseViewHolder(binding) {}
+}