updating min required Android OS version to Lollipop (5)

Author: tibbi

app/build.gradle

@@ -8,7 +8,7 @@ android {
 
     defaultConfig {
         applicationId "com.simplemobiletools.filemanager"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 28
         versionCode 57
         versionName "4.3.1"
@@ -42,7 +42,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:4.10.1'
+    implementation 'com.simplemobiletools:commons:5.0.2'
 
     implementation files('../libs/RootTools.jar')
 }

app/src/main/kotlin/com/simplemobiletools/filemanager/adapters/ItemsAdapter.kt

@@ -539,7 +539,7 @@ class ItemsAdapter(activity: SimpleActivity, var fileDirItems: MutableList<FileD
 
     override fun onViewRecycled(holder: ViewHolder) {
         super.onViewRecycled(holder)
-        if (!activity.isActivityDestroyed()) {
+        if (!activity.isDestroyed) {
             Glide.with(activity).clear(holder.itemView.item_icon!!)
         }
     }
@@ -577,7 +577,7 @@ class ItemsAdapter(activity: SimpleActivity, var fileDirItems: MutableList<FileD
                     path
                 }
 
-                if (!activity.isActivityDestroyed()) {
+                if (!activity.isDestroyed) {
                     if (hasOTGConnected && itemToLoad is String && itemToLoad.startsWith(OTG_PATH)) {
                         itemToLoad = itemToLoad.getOTGPublicPath(activity)
                     }

app/src/main/kotlin/com/simplemobiletools/filemanager/fragments/ItemsFragment.kt

@@ -173,7 +173,7 @@ class ItemsFragment : Fragment(), ItemOperationsListener, Breadcrumbs.Breadcrumb
     private fun getItems(path: String, callback: (originalPath: String, items: ArrayList<FileDirItem>) -> Unit) {
         skipItemUpdating = false
         Thread {
-            if (activity?.isActivityDestroyed() == false) {
+            if (activity?.isDestroyed == false) {
                 if (path.startsWith(OTG_PATH)) {
                     val getProperFileSize = context!!.config.sorting and SORT_BY_SIZE != 0
                     context!!.getOTGItems(path, context!!.config.shouldShowHidden, getProperFileSize) {