write the text to the selected file

app/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.9.1'
+    compile 'com.simplemobiletools:commons:2.9.2'
     compile 'com.facebook.stetho:stetho:1.4.1'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

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

@@ -32,6 +32,7 @@ import com.simplemobiletools.notes.helpers.TYPE_NOTE
 import com.simplemobiletools.notes.models.Note
 import kotlinx.android.synthetic.main.activity_main.*
 import java.io.File
+import java.nio.charset.Charset
 
 class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
     val STORAGE_OPEN_FILE = 1
@@ -188,9 +189,36 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
 
     private fun saveAsFile() {
         SaveAsDialog(this, mCurrentNote.title) {
+            val file = File(it)
+            if (file.isDirectory) {
+                toast(R.string.directory_exists)
+                return@SaveAsDialog
+            }
 
+            val text = getCurrentNoteText()
+            if (needsStupidWritePermissions(it)) {
+                if (isShowingPermDialog(file))
+                    return@SaveAsDialog
+
+                var document = getFileDocument(it, config.treeUri) ?: return@SaveAsDialog
+                if (!file.exists()) {
+                    document = document.createFile("", file.name)
+                }
+                contentResolver.openOutputStream(document.uri).apply {
+                    write(text.toByteArray(Charset.forName("UTF-8")))
+                    flush()
+                    close()
+                }
+            } else {
+                file.printWriter().use { out ->
+                    out.write(text)
                 }
             }
+            toast(R.string.file_saved)
+        }
+    }
+
+    private fun getCurrentNoteText() = (view_pager.adapter as NotesPagerAdapter).getCurrentNoteText(view_pager.currentItem)
 
     private fun displayDeleteNotePrompt() {
         val message = String.format(getString(R.string.delete_note_prompt_message), mCurrentNote.title)
@@ -230,7 +258,7 @@ class MainActivity : SimpleActivity(), ViewPager.OnPageChangeListener {
     }
 
     private fun shareText() {
-        val text = (view_pager.adapter as NotesPagerAdapter).getCurrentNoteText(view_pager.currentItem)
+        val text = getCurrentNoteText()
         if (text.isEmpty()) {
             toast(R.string.cannot_share_empty_text)
             return

app/src/main/kotlin/com/simplemobiletools/notes/dialogs/SaveAsDialog.kt

@@ -2,6 +2,7 @@ package com.simplemobiletools.notes.dialogs
 
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
+import android.view.WindowManager
 import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.notes.R
@@ -39,6 +40,7 @@ class SaveAsDialog(val activity: SimpleActivity, val noteTitle: String, val call
                 .setPositiveButton(R.string.ok, null)
                 .setNegativeButton(R.string.cancel, null)
                 .create().apply {
+            window!!.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE)
             activity.setupDialogStuff(view, this, R.string.save_as)
             getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener({
                 val filename = view.file_name.value