show only the wanted mime types at third party file picking intents

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

@@ -383,7 +383,7 @@ class MainActivity : SimpleActivity() {
             it?.isGetRingtonePicker = isPickRingtoneIntent
             it?.isPickMultipleIntent = allowPickingMultipleIntent
             it?.isGetContentIntent = isGetContentIntent
-            it?.getContentMimeType = getContentMimeType
+            it?.wantedMimeType = getContentMimeType
         }
 
         if (refreshRecents) {

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

@@ -205,21 +205,10 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
         val lastModifieds = context!!.getFolderLastModifieds(path)
 
         for (file in files) {
-            val fileDirItem = getFileDirItemFromFile(file, isSortingBySize, lastModifieds, false)
+            val listItem = getListItemFromFile(file, isSortingBySize, lastModifieds, false)
-            if (fileDirItem != null) {
+            if (listItem != null) {
-                val mimetype = file.getMimeType()
+                if (isProperMimeType(wantedMimeType, file.absolutePath, file.isDirectory)) {
-                val isProperMimeType = if (getContentMimeType.isEmpty() || file.isDirectory) {
+                    items.add(listItem)
-                    true
-                } else {
-                    if (getContentMimeType.endsWith("/*")) {
-                        mimetype.substringBefore("/").equals(getContentMimeType.substringBefore("/"), true)
-                    } else {
-                        mimetype.equals(getContentMimeType, true)
-                    }
-                }
-
-                if (isProperMimeType) {
-                    items.add(fileDirItem)
                 }
             }
         }
@@ -241,7 +230,7 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
         }
     }
 
-    private fun getFileDirItemFromFile(file: File, isSortingBySize: Boolean, lastModifieds: HashMap<String, Long>, getProperChildCount: Boolean): ListItem? {
+    private fun getListItemFromFile(file: File, isSortingBySize: Boolean, lastModifieds: HashMap<String, Long>, getProperChildCount: Boolean): ListItem? {
         val curPath = file.absolutePath
         val curName = file.name
         if (!showHidden && curName.startsWith(".")) {
@@ -272,8 +261,10 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
         val listItems = ArrayList<ListItem>()
         fileDirItems.forEach {
             val listItem = ListItem(it.path, it.name, it.isDirectory, it.children, it.size, it.modified, false, false)
+            if (isProperMimeType(wantedMimeType, it.path, it.isDirectory)) {
                 listItems.add(listItem)
             }
+        }
         return listItems
     }
 
@@ -374,7 +365,7 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
 
             if (it.isDirectory) {
                 if (it.name.contains(text, true)) {
-                    val fileDirItem = getFileDirItemFromFile(it, isSortingBySize, HashMap<String, Long>(), false)
+                    val fileDirItem = getListItemFromFile(it, isSortingBySize, HashMap<String, Long>(), false)
                     if (fileDirItem != null) {
                         files.add(fileDirItem)
                     }
@@ -383,7 +374,7 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
                 files.addAll(searchFiles(text, it.absolutePath))
             } else {
                 if (it.name.contains(text, true)) {
-                    val fileDirItem = getFileDirItemFromFile(it, isSortingBySize, HashMap<String, Long>(), false)
+                    val fileDirItem = getListItemFromFile(it, isSortingBySize, HashMap<String, Long>(), false)
                     if (fileDirItem != null) {
                         files.add(fileDirItem)
                     }

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

@@ -3,6 +3,7 @@ package com.simplemobiletools.filemanager.pro.fragments
 import android.content.Context
 import android.util.AttributeSet
 import android.widget.RelativeLayout
+import com.simplemobiletools.commons.extensions.getMimeType
 import com.simplemobiletools.commons.extensions.isAudioFast
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_LIST
@@ -19,7 +20,7 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
     var isGetContentIntent = false
     var isGetRingtonePicker = false
     var isPickMultipleIntent = false
-    var getContentMimeType = ""
+    var wantedMimeType = ""
 
     protected fun clickedPath(path: String) {
         if (isGetContentIntent) {
@@ -35,6 +36,19 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
         }
     }
 
+    protected fun isProperMimeType(wantedMimeType: String, path: String, isDirectory: Boolean): Boolean {
+        return if (wantedMimeType.isEmpty() || wantedMimeType == "*/*" || isDirectory) {
+            true
+        } else {
+            val fileMimeType = path.getMimeType()
+            if (wantedMimeType.endsWith("/*")) {
+                fileMimeType.substringBefore("/").equals(wantedMimeType.substringBefore("/"), true)
+            } else {
+                fileMimeType.equals(wantedMimeType, true)
+            }
+        }
+    }
+
     abstract fun setupFragment(activity: SimpleActivity)
 
     abstract fun onResume(textColor: Int)

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

@@ -146,8 +146,10 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
                         val modified = cursor.getLongValue(FileColumns.DATE_MODIFIED) * 1000
                         val fileDirItem = ListItem(path, name, false, 0, size, modified, false, false)
                         if ((showHidden || !name.startsWith(".")) && activity?.getDoesFilePathExist(path) == true) {
+                            if (isProperMimeType(wantedMimeType, path, false)) {
                                 listItems.add(fileDirItem)
                             }
+                        }
                     } while (cursor.moveToNext())
                 }
             }