properly import events from ics files shared via gmail

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

@@ -4,6 +4,7 @@ import android.Manifest
 import android.content.Intent
 import android.content.pm.ActivityInfo
 import android.content.pm.PackageManager
+import android.net.Uri
 import android.os.Bundle
 import android.support.v4.app.ActivityCompat
 import android.support.v4.view.ViewPager
@@ -37,6 +38,7 @@ import com.simplemobiletools.commons.models.Release
 import kotlinx.android.synthetic.main.activity_main.*
 import org.joda.time.DateTime
 import java.io.File
+import java.io.FileOutputStream
 import java.util.*
 
 class MainActivity : SimpleActivity(), NavigationListener {
@@ -73,7 +75,7 @@ class MainActivity : SimpleActivity(), NavigationListener {
             requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
 
         if (intent?.action == Intent.ACTION_VIEW && intent.data != null) {
-            importEventsFromFile(intent.data!!.path)
+            tryImportEventsFromFile(intent.data)
         }
     }
 
@@ -235,22 +237,37 @@ class MainActivity : SimpleActivity(), NavigationListener {
 
     private fun importEvents() {
         FilePickerDialog(this) {
-            importEventsFromFile(it)
+            importEventsDialog(it)
         }
     }
 
-    private fun importEventsFromFile(path: String) {
+    private fun tryImportEventsFromFile(uri: Uri) {
-        if (path.toLowerCase().endsWith(".ics")) {
+        if (uri.scheme == "file") {
-            ImportEventsDialog(this, path) {
+            importEventsDialog(uri.path)
-                if (it) {
+        } else if (uri.scheme == "content") {
-                    updateViewPager()
+            val tempFile = getTempFile()
-                }
+            if (tempFile == null) {
+                toast(R.string.unknown_error_occurred)
+                return
             }
+
+            val inputStream = contentResolver.openInputStream(uri)
+            val out = FileOutputStream(tempFile)
+            inputStream.copyTo(out)
+            importEventsDialog(tempFile.absolutePath)
         } else {
             toast(R.string.invalid_file_format)
         }
     }
 
+    private fun importEventsDialog(path: String) {
+        ImportEventsDialog(this, path) {
+            if (it) {
+                updateViewPager()
+            }
+        }
+    }
+
     private fun tryExportEvents() {
         if (hasReadStoragePermission()) {
             exportEvents()

app/src/main/kotlin/com/simplemobiletools/calendar/adapters/DayEventsAdapter.kt

@@ -80,6 +80,7 @@ class DayEventsAdapter(val activity: SimpleActivity, val mItems: List<Event>, va
             eventIds.add(mItems[it].id)
         }
         activity.shareEvents(eventIds.distinct())
+        actMode?.finish()
     }
 
     private fun askConfirmDelete() {

app/src/main/kotlin/com/simplemobiletools/calendar/adapters/EventListAdapter.kt

@@ -96,6 +96,7 @@ class EventListAdapter(val activity: SimpleActivity, val mItems: List<ListItem>,
             eventIds.add((mItems[it] as ListEvent).id)
         }
         activity.shareEvents(eventIds.distinct())
+        actMode?.finish()
     }
 
     private fun askConfirmDelete() {

app/src/main/kotlin/com/simplemobiletools/calendar/dialogs/ImportEventsDialog.kt

@@ -9,7 +9,6 @@ import com.simplemobiletools.calendar.extensions.dbHelper
 import com.simplemobiletools.calendar.helpers.DBHelper
 import com.simplemobiletools.calendar.helpers.IcsImporter
 import com.simplemobiletools.calendar.helpers.IcsImporter.ImportResult.*
-import com.simplemobiletools.commons.extensions.humanizePath
 import com.simplemobiletools.commons.extensions.setBackgroundWithStroke
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.extensions.toast
@@ -20,8 +19,6 @@ class ImportEventsDialog(val activity: Activity, val path: String, val callback:
 
     init {
         val view = (activity.layoutInflater.inflate(R.layout.dialog_import_events, null) as ViewGroup).apply {
-            import_events_filename.text = activity.humanizePath(path)
-
             updateEventType(this)
             import_event_type_holder.setOnClickListener {
                 SelectEventTypeDialog(activity, currEventTypeId) {

app/src/main/kotlin/com/simplemobiletools/calendar/extensions/Activity.kt

@@ -9,17 +9,13 @@ import com.simplemobiletools.commons.extensions.toast
 import java.io.File
 
 fun Activity.shareEvents(ids: List<Int>) {
-    val folder = File(cacheDir, "events")
+    val file = getTempFile()
-    if (!folder.exists()) {
+    if (file == null) {
-        if (!folder.mkdir()) {
+        toast(R.string.unknown_error_occurred)
-            toast(R.string.unknown_error_occurred)
+        return
-            return
-        }
     }
 
-    val file = File(folder, "events.ics")
     val events = dbHelper.getEventsWithIds(ids)
-
     val result = IcsExporter().exportEvents(this, file, events)
     if (result == IcsExporter.ExportResult.EXPORT_OK) {
         val uri = FileProvider.getUriForFile(this, "com.simplemobiletools.calendar.fileprovider", file)
@@ -39,3 +35,15 @@ fun Activity.shareEvents(ids: List<Int>) {
         }
     }
 }
+
+fun Activity.getTempFile(): File? {
+    val folder = File(cacheDir, "events")
+    if (!folder.exists()) {
+        if (!folder.mkdir()) {
+            toast(R.string.unknown_error_occurred)
+            return null
+        }
+    }
+
+    return File(folder, "events.ics")
+}

app/src/main/kotlin/com/simplemobiletools/calendar/helpers/DBHelper.kt

@@ -339,7 +339,7 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
         } finally {
             cursor?.close()
         }
-        return ids
+        return ids.filter { it.trim().isNotEmpty() } as ArrayList<String>
     }
 
     fun getEvent(id: Int): Event? {

app/src/main/kotlin/com/simplemobiletools/calendar/helpers/IcsImporter.kt

@@ -84,7 +84,9 @@ class IcsImporter {
                         if (curTitle.isEmpty() || curStart == -1 || curEnd == -1 || importIDs.contains(curImportId))
                             continue
 
-                        importIDs.add(curImportId)
+                        if (curImportId.isNotEmpty())
+                            importIDs.add(curImportId)
+
                         val event = Event(0, curStart, curEnd, curTitle, curDescription, curReminderMinutes.getOrElse(0, { -1 }),
                                 curReminderMinutes.getOrElse(1, { -1 }), curReminderMinutes.getOrElse(2, { -1 }), curRepeatInterval,
                                 curImportId, curFlags, curRepeatLimit, curRepeatRule, curEventType)

app/src/main/res/layout/dialog_import_events.xml

@@ -9,23 +9,6 @@
     android:paddingRight="@dimen/activity_margin"
     android:paddingTop="@dimen/activity_margin">
 
-    <com.simplemobiletools.commons.views.MyTextView
-        android:id="@+id/import_events_filename_label"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/filename"
-        android:textSize="@dimen/smaller_text_size"/>
-
-    <com.simplemobiletools.commons.views.MyTextView
-        android:id="@+id/import_events_filename"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginBottom="@dimen/activity_margin"
-        android:layout_marginLeft="@dimen/activity_margin"
-        android:paddingBottom="@dimen/small_margin"
-        android:paddingRight="@dimen/small_margin"
-        android:paddingTop="@dimen/small_margin"/>
-
     <com.simplemobiletools.commons.views.MyTextView
         android:id="@+id/import_events_event_type_label"
         android:layout_width="wrap_content"