adding some crashfixes

Author: tibbi

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/ReadTextActivity.kt

@@ -231,7 +231,12 @@ class ReadTextActivity : SimpleActivity() {
                 filePath = uri.path!!
                 val file = File(filePath)
                 if (file.exists()) {
-                    file.readText()
+                    try {
+                        file.readText()
+                    } catch (e: Exception) {
+                        showErrorToast(e)
+                        ""
+                    }
                 } else {
                     toast(R.string.unknown_error_occurred)
                     ""

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/StorageFragment.kt

@@ -11,6 +11,7 @@ import android.util.AttributeSet
 import androidx.appcompat.app.AppCompatActivity
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.ensureBackgroundThread
+import com.simplemobiletools.commons.helpers.isOreoPlus
 import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.activities.MimeTypesActivity
 import com.simplemobiletools.filemanager.pro.activities.SimpleActivity
@@ -86,6 +87,10 @@ class StorageFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
     }
 
     private fun getSizes() {
+        if (!isOreoPlus()) {
+            return
+        }
+
         ensureBackgroundThread {
             getMainStorageStats(context)