diff --git a/app/src/main/java/de/ccc/events/badge/card10/filetransfer/BatchTransferFragment.kt b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/BatchTransferFragment.kt
new file mode 100644
index 0000000000000000000000000000000000000000..c1503eaa04ca5d090707a9a63a479c11372dabfb
--- /dev/null
+++ b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/BatchTransferFragment.kt
@@ -0,0 +1,147 @@
+/*
+ * Copyright by the original author or authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package de.ccc.events.badge.card10.filetransfer
+
+import android.bluetooth.BluetoothGatt
+import android.net.Uri
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import de.ccc.events.badge.card10.R
+import de.ccc.events.badge.card10.common.ConnectionService
+import de.ccc.events.badge.card10.common.GattListener
+import de.ccc.events.badge.card10.main.MainFragment
+import kotlinx.android.synthetic.main.batch_transfer_fragment.*
+import java.lang.Exception
+import java.lang.IllegalStateException
+
+private const val TAG = "BatchTransferFragment"
+
+class BatchTransferFragment : Fragment(), FileTransferListener, GattListener {
+ private lateinit var queue: TransferQueue
+ private var transfer: FileTransfer? = null
+ private var isCancelled = false
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+
+ val args = arguments ?: throw IllegalStateException()
+ val jobs = args.get("jobs") as? Array<TransferJob> ?: throw IllegalStateException()
+ queue = TransferQueue(jobs)
+ }
+
+ override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? =
+ inflater.inflate(R.layout.batch_transfer_fragment, container, false)
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ label_status.text = getString(R.string.batch_transfer_label_initializing)
+ progress.max = 5
+
+ button_cancel.setOnClickListener {
+// isCancelled = true
+ startTransfer()
+ }
+
+ button_done.setOnClickListener {
+ val fragment = MainFragment()
+ fragmentManager!!.beginTransaction()
+ .replace(R.id.fragment_container, fragment)
+ .addToBackStack(null)
+ .commit()
+ }
+
+ initConnection()
+ }
+
+ private fun initConnection() {
+ val ctx = context ?: throw IllegalStateException()
+ ConnectionService.connect(ctx)
+ }
+
+ private fun startTransfer() {
+ activity?.runOnUiThread {
+ label_status.text = getString(R.string.batch_transfer_label_transferring)
+ progress.max = queue.size
+ }
+
+ transferNext()
+ }
+
+ private fun transferNext() {
+ val item = queue.dequeue()
+
+ if (item == null || isCancelled) {
+ activity?.runOnUiThread {
+ progress.progress = 0
+ label_status.text = if (isCancelled) {
+ getString(R.string.batch_transfer_label_cancelled)
+ } else {
+ getString(R.string.batch_transfer_label_complete)
+ }
+ button_cancel.visibility = View.GONE
+ button_done.visibility = View.VISIBLE
+ }
+ } else {
+ transferItem(item)
+ }
+ }
+
+ private fun transferItem(transferJob: TransferJob) {
+ try {
+ val ctx = activity ?: throw IllegalStateException()
+ val reader = ChunkedReader(ctx, transferJob.sourceUri, ConnectionService.mtu)
+ val service = ConnectionService.leService ?: throw IllegalStateException()
+ transfer = FileTransfer(service, reader,this, transferJob.destPath)
+ } catch (e: Exception) {
+ Log.e(TAG, "Failed to initialize transfer")
+ return
+ }
+ }
+
+ override fun onConnectionStateChange(state: Int) {
+ if (state == BluetoothGatt.STATE_CONNECTED) {
+ startTransfer()
+ }
+ }
+
+ override fun onError() {
+ activity?.runOnUiThread {
+ label_status.text = getString(R.string.batch_transfer_label_error)
+ button_cancel.visibility = View.GONE
+ button_done.visibility = View.VISIBLE
+ }
+ }
+
+ override fun onFinish() {
+ activity?.runOnUiThread {
+ // TODO: Add workaround for broken progress bars
+ // https://stackoverflow.com/questions/4348032/android-progressbar-does-not-update-progress-view-drawable
+ progress.incrementProgressBy(1)
+ }
+
+ transferNext()
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferJob.kt b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferJob.kt
new file mode 100644
index 0000000000000000000000000000000000000000..efcc40f24a82476a06f920ea3d9cfd9475b7dd4e
--- /dev/null
+++ b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferJob.kt
@@ -0,0 +1,35 @@
+/*
+ * Copyright by the original author or authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package de.ccc.events.badge.card10.filetransfer
+
+import android.net.Uri
+import android.os.Parcel
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
+
+// Ignore IDE warnings. @Parcelize will take care of everything
+@Parcelize
+data class TransferJob(
+ val sourceUri: Uri,
+ val destPath: String
+) : Parcelable
\ No newline at end of file
diff --git a/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferQueue.kt b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferQueue.kt
new file mode 100644
index 0000000000000000000000000000000000000000..d4813e16f2926f6801b55afd31518579a9d39df4
--- /dev/null
+++ b/app/src/main/java/de/ccc/events/badge/card10/filetransfer/TransferQueue.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright by the original author or authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package de.ccc.events.badge.card10.filetransfer
+
+import android.net.Uri
+import java.util.*
+import kotlin.NoSuchElementException
+
+class TransferQueue() {
+ private val queue = LinkedList<TransferJob>()
+
+ val size: Int
+ get() = queue.size
+
+ constructor(jobs: Array<TransferJob>) : this() {
+ for (job in jobs) {
+ queue.add(job)
+ }
+ }
+
+ fun enqueue(sourceUri: Uri, destPath: String) {
+ queue.add(TransferJob(sourceUri, destPath))
+ }
+
+ fun dequeue(): TransferJob? {
+ return try {
+ queue.removeFirst()
+ } catch (e: NoSuchElementException) {
+ null
+ }
+ }
+
+ fun clear() = queue.clear()
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/batch_transfer_fragment.xml b/app/src/main/res/layout/batch_transfer_fragment.xml
new file mode 100644
index 0000000000000000000000000000000000000000..ba1820674e95ab7ddf0209f06a24c3e18a50f437
--- /dev/null
+++ b/app/src/main/res/layout/batch_transfer_fragment.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:padding="@dimen/activity_padding">
+
+ <LinearLayout android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ android:orientation="vertical"
+ android:gravity="center_horizontal">
+
+ <ProgressBar android:layout_width="@dimen/batch_transfer_progress"
+ android:layout_height="wrap_content"
+ android:id="@+id/progress"
+ android:indeterminate="false"
+ style="@style/Widget.AppCompat.ProgressBar.Horizontal"/>
+
+ <TextView android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:id="@+id/label_status"/>
+ </LinearLayout>
+
+ <Button android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ android:id="@+id/button_cancel"
+ android:text="@string/batch_transfer_button_cancel"/>
+
+ <Button android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ android:id="@+id/button_done"
+ android:visibility="gone"
+ android:text="@string/batch_transfer_button_done"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimensions.xml b/app/src/main/res/values/dimensions.xml
index 9d3852ddac2326519ee115bc885caa70752968bb..76751de92b4a80563a16e7c7ffef71d936e6ed6b 100644
--- a/app/src/main/res/values/dimensions.xml
+++ b/app/src/main/res/values/dimensions.xml
@@ -7,6 +7,8 @@
<dimen name="main_button_margin">16dp</dimen>
<dimen name="send_label_margin">24dp</dimen>
+ <dimen name="batch_transfer_progress">200dp</dimen>
+
<dimen name="app_list_item_padding">16dp</dimen>
<dimen name="app_detail_description_margin">16dp</dimen>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fbc5ec97ccb0bf51c6e38b9498d5adc7857631c0..87c8728edfd0dd8b7127fa71b36a8599ea4b04e8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -19,6 +19,15 @@
<string name="file_transfer_hint_destination">Destination path</string>
<string name="file_transfer_label_destination_help">(e.g. /test.py)</string>
+ <string name="batch_transfer_label_initializing">Initializing…</string>
+ <string name="batch_transfer_label_transferring">Transferring files…</string>
+ <string name="batch_transfer_label_complete">Files transferred</string>
+ <string name="batch_transfer_label_error">Transfer failed</string>
+ <string name="batch_transfer_label_cancelled">Transfer cancelled</string>
+ <string name="batch_transfer_button_cancel">Cancel</string>
+ <string name="batch_transfer_button_done">Done</string>
+
+
<string name="loading_dialog_loading">Loading</string>
<string name="dialog_action_ok">OK</string>
<string name="dialog_action_cancel">Cancel</string>