handle get_content intent

app/src/main/AndroidManifest.xml

@@ -23,7 +23,15 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".activities.MainActivity"/>
+        <activity android:name=".activities.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.GET_CONTENT"/>
+                <data android:mimeType="*/*"/>
+
+                <category android:name="android.intent.category.OPENABLE"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity>
 
         <activity
             android:name="com.simplemobiletools.commons.activities.AboutActivity"

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

@@ -1,15 +1,14 @@
 package com.simplemobiletools.filemanager.activities
 
+import android.app.Activity
 import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
 import android.view.Menu
 import android.view.MenuItem
 import com.simplemobiletools.commons.dialogs.RadioGroupDialog
-import com.simplemobiletools.commons.extensions.checkWhatsNew
-import com.simplemobiletools.commons.extensions.handleHiddenFolderPasswordProtection
-import com.simplemobiletools.commons.extensions.storeStoragePaths
-import com.simplemobiletools.commons.extensions.toast
+import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.LICENSE_KOTLIN
 import com.simplemobiletools.commons.helpers.LICENSE_MULTISELECT
 import com.simplemobiletools.commons.helpers.LICENSE_PATTERN
@@ -25,11 +24,13 @@ import com.simplemobiletools.filemanager.helpers.RootHelpers
 import com.stericson.RootTools.RootTools
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.items_fragment.*
+import java.io.File
 import java.util.*
 
 class MainActivity : SimpleActivity() {
     private val BACK_PRESS_TIMEOUT = 5000
     private var wasBackJustPressed = false
+    private var isGetContentIntent = false
 
     private lateinit var fragment: ItemsFragment
 
@@ -39,6 +40,9 @@ class MainActivity : SimpleActivity() {
         storeStoragePaths()
 
         fragment = fragment_holder as ItemsFragment
+        isGetContentIntent = intent.action == Intent.ACTION_GET_CONTENT
+        fragment.isGetContentIntent = isGetContentIntent
+
         tryInitFileManager()
         checkWhatsNewDialog()
         checkIfRootAvailable()
@@ -191,6 +195,16 @@ class MainActivity : SimpleActivity() {
         }).start()
     }
 
+    fun pickedPath(path: String) {
+        val resultIntent = Intent()
+        val uri = Uri.fromFile(File(path))
+        val type = File(path).getMimeType("image/jpeg")
+        resultIntent.setDataAndTypeAndNormalize(uri, type)
+        resultIntent.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+        setResult(Activity.RESULT_OK, resultIntent)
+        finish()
+    }
+
     private fun checkWhatsNewDialog() {
         arrayListOf<Release>().apply {
             add(Release(26, R.string.release_26))

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

@@ -18,6 +18,7 @@ import com.simplemobiletools.commons.models.FileDirItem
 import com.simplemobiletools.commons.views.Breadcrumbs
 import com.simplemobiletools.commons.views.MyScalableRecyclerView
 import com.simplemobiletools.filemanager.R
+import com.simplemobiletools.filemanager.activities.MainActivity
 import com.simplemobiletools.filemanager.activities.SimpleActivity
 import com.simplemobiletools.filemanager.adapters.ItemsAdapter
 import com.simplemobiletools.filemanager.dialogs.CreateNewItemDialog
@@ -33,6 +34,7 @@ import kotlin.collections.ArrayList
 
 class ItemsFragment : Fragment(), ItemsAdapter.ItemOperationsListener, Breadcrumbs.BreadcrumbsListener {
     var currentPath = ""
+    var isGetContentIntent = false
 
     private var storedTextColor = 0
     private var showHidden = false
@@ -219,6 +221,15 @@ class ItemsFragment : Fragment(), ItemsAdapter.ItemOperationsListener, Breadcrum
             openPath(item.path)
         } else {
             val path = item.path
+            if (isGetContentIntent) {
+                (activity as MainActivity).pickedPath(path)
+            } else {
+                fileClicked(path)
+            }
+        }
+    }
+
+    private fun fileClicked(path: String) {
         val file = File(path)
         var mimeType: String? = MimeTypeMap.getSingleton().getMimeTypeFromExtension(path.getFilenameExtension().toLowerCase())
         if (mimeType == null)
@@ -236,7 +247,6 @@ class ItemsFragment : Fragment(), ItemsAdapter.ItemOperationsListener, Breadcrum
             }
         }
     }
-    }
 
     private fun tryGenericMimeType(intent: Intent, mimeType: String, file: File): Boolean {
         val genericMimeType = getGenericMimeType(mimeType)