Auto-update

Application/build.gradle

@@ -2,10 +2,11 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
@@ -13,16 +14,14 @@ apply plugin: 'com.android.application'
 
 repositories {
     jcenter()
-    maven {
-        url 'https://maven.google.com'
-    }
+    google()
 }
 
 dependencies {
-    compile "com.android.support:support-v4:26.1.0"
-    compile "com.android.support:support-v13:26.1.0"
-    compile "com.android.support:cardview-v7:26.1.0"
-    compile "com.android.support:appcompat-v7:26.1.0"
+    compile "com.android.support:support-v4:27.0.2"
+    compile "com.android.support:support-v13:27.0.2"
+    compile "com.android.support:cardview-v7:27.0.2"
+    compile "com.android.support:appcompat-v7:27.0.2"
 }
 
 // The sample build uses multiple directories to
@@ -34,14 +33,13 @@ List<String> dirs = [
     'template'] // boilerplate code that is generated by the sample template process
 
 android {
-    
-        compileSdkVersion 26
+    compileSdkVersion 27
 
-    buildToolsVersion "26.0.1"
+    buildToolsVersion "27.0.2"
 
     defaultConfig {
         minSdkVersion 21
-        targetSdkVersion 26
+        targetSdkVersion 27
     }
 
     compileOptions {

README.md

@@ -43,8 +43,8 @@ your MediaRecorder instance.
 Pre-requisites
 --------------
 
-- Android SDK 26
-- Android Build Tools v26.0.1
+- Android SDK 27
+- Android Build Tools v27.0.2
 - Android Support Repository
 
 Screenshots

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4.1-all.zip
\ No newline at end of file
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
\ No newline at end of file

kotlinApp/.google/packaging.yaml

+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       PUBLISHED
+technologies: [Android]
+categories:   [Media]
+languages:    [Kotlin]
+solutions:    [Mobile]
+github:       android-Camera2Video
+level:        ADVANCED
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.hardware.camera2.CameraCaptureSession
+    - android:android.hardware.camera2.CameraDevice
+    - android:android.view.TextureView
+license: apache2

kotlinApp/Application/build.gradle

+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "com.example.android.camera2video"
+        minSdkVersion 24
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation "com.android.support:appcompat-v7:27.0.2"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+}
\ No newline at end of file

kotlinApp/Application/src/main/AndroidManifest.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.camera2video">
+
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+    <application
+        android:allowBackup="false"
+        android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/MaterialTheme">
+
+        <activity android:name=".CameraActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+
+</manifest>

kotlinApp/Application/src/main/java/com/example/android/camera2video/AutoFitTextureView.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.camera2video
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.TextureView
+import android.view.View
+
+/**
+ * A [TextureView] that can be adjusted to a specified aspect ratio.
+ */
+class AutoFitTextureView @JvmOverloads constructor(
+        context: Context,
+        attrs: AttributeSet? = null,
+        defStyle: Int = 0
+) : TextureView(context, attrs, defStyle) {
+
+    private var ratioWidth = 0
+    private var ratioHeight = 0
+
+    /**
+     * Sets the aspect ratio for this view. The size of the view will be measured based on the ratio
+     * calculated from the parameters. Note that the actual sizes of parameters don't matter, that
+     * is, calling setAspectRatio(2, 3) and setAspectRatio(4, 6) make the same result.
+     *
+     * @param width  Relative horizontal size
+     * @param height Relative vertical size
+     */
+    fun setAspectRatio(width: Int, height: Int) {
+        if (width < 0 || height < 0) {
+            throw IllegalArgumentException("Size cannot be negative.")
+        }
+        ratioWidth = width
+        ratioHeight = height
+        requestLayout()
+    }
+
+    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec)
+        val width = View.MeasureSpec.getSize(widthMeasureSpec)
+        val height = View.MeasureSpec.getSize(heightMeasureSpec)
+        if (ratioWidth == 0 || ratioHeight == 0) {
+            setMeasuredDimension(width, height)
+        } else {
+            if (width < ((height * ratioWidth) / ratioHeight)) {
+                setMeasuredDimension(width, (width * ratioHeight) / ratioWidth)
+            } else {
+                setMeasuredDimension((height * ratioWidth) / ratioHeight, height)
+            }
+        }
+    }
+
+}

kotlinApp/Application/src/main/java/com/example/android/camera2video/CameraActivity.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.camera2video
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+
+class CameraActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_camera)
+        savedInstanceState ?: supportFragmentManager.beginTransaction()
+                    .replace(R.id.container, Camera2VideoFragment.newInstance())
+                    .commit()
+    }
+
+}

kotlinApp/Application/src/main/java/com/example/android/camera2video/CompareSizesByArea.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.camera2video
+
+import android.util.Size
+import java.lang.Long.signum
+
+/**
+ * Compare two [Size]s based on their areas.
+ */
+class CompareSizesByArea : Comparator<Size> {
+
+    // We cast here to ensure the multiplications won't overflow
+    override fun compare(lhs: Size, rhs: Size) =
+            signum(lhs.width.toLong() * lhs.height - rhs.width.toLong() * rhs.height)
+}
\ No newline at end of file

kotlinApp/Application/src/main/java/com/example/android/camera2video/ConfirmationDialog.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.camera2video
+
+import android.app.AlertDialog
+import android.os.Bundle
+import android.support.v4.app.DialogFragment
+
+/**
+ * Shows OK/Cancel confirmation dialog about camera permission.
+ */
+class ConfirmationDialog : DialogFragment() {
+
+    override fun onCreateDialog(savedInstanceState: Bundle?) =
+            AlertDialog.Builder(activity)
+                    .setMessage(R.string.permission_request)
+                    .setPositiveButton(android.R.string.ok) { _, _ ->
+                        parentFragment?.requestPermissions(VIDEO_PERMISSIONS,
+                                REQUEST_VIDEO_PERMISSIONS)
+                    }
+                    .setNegativeButton(android.R.string.cancel) { _,_ ->
+                        parentFragment?.activity?.finish()
+                    }
+                    .create()
+
+}

kotlinApp/Application/src/main/java/com/example/android/camera2video/Constants.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@file:JvmName("Constants")
+
+package com.example.android.camera2video
+
+import android.Manifest
+
+val REQUEST_VIDEO_PERMISSIONS = 1
+val VIDEO_PERMISSIONS = arrayOf(Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO)
\ No newline at end of file

kotlinApp/Application/src/main/java/com/example/android/camera2video/ErrorDialog.kt

+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.camera2video
+
+import android.app.AlertDialog
+import android.os.Bundle
+import android.support.v4.app.DialogFragment
+
+/**
+ * Shows an error message dialog.
+ */
+class ErrorDialog : DialogFragment() {
+    private val ARG_MESSAGE = "message"
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): AlertDialog =
+            AlertDialog.Builder(activity)
+                    .setMessage(arguments?.getString(ARG_MESSAGE))
+                    .setPositiveButton(android.R.string.ok)  { _, _ -> activity?.finish() }
+                    .create()
+
+    companion object {
+        fun newInstance(message: String) = ErrorDialog().apply {
+            arguments = Bundle().apply { putString(ARG_MESSAGE, message) }
+        }
+    }
+
+}
+

kotlinApp/Application/src/main/res/layout-land/fragment_camera2_video.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.example.android.camera2video.AutoFitTextureView
+        android:id="@+id/texture"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true" />
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentEnd="true"
+        android:layout_alignParentTop="true"
+        android:layout_below="@id/texture"
+        android:layout_toEndOf="@id/texture"
+        android:background="@color/fragment_background"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/video"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="@string/record" />
+
+        <ImageButton
+            android:id="@+id/info"
+            style="@android:style/Widget.Material.Light.Button.Borderless"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal|bottom"
+            android:contentDescription="@string/description_info"
+            android:padding="@dimen/button_padding"
+            android:src="@drawable/ic_action_info" />
+
+    </FrameLayout>
+
+</RelativeLayout>

kotlinApp/Application/src/main/res/layout/activity_camera.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/activity_background"
+    tools:context="com.example.android.camera2video.CameraActivity" />

kotlinApp/Application/src/main/res/layout/fragment_camera2_video.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <com.example.android.camera2video.AutoFitTextureView
+        android:id="@+id/texture"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true" />
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentStart="true"
+        android:layout_below="@id/texture"
+        android:background="@color/fragment_background">
+
+        <Button
+            android:id="@+id/video"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="@string/record" />
+
+        <ImageButton
+            android:id="@+id/info"
+            android:contentDescription="@string/description_info"
+            style="@android:style/Widget.Material.Light.Button.Borderless"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical|end"
+            android:padding="@dimen/button_padding"
+            android:src="@drawable/ic_action_info" />
+
+    </FrameLayout>
+
+</RelativeLayout>

kotlinApp/Application/src/main/res/values-v21/base-template-styles.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>

kotlinApp/Application/src/main/res/values/base-strings.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">Camera2Video</string>
+    <string name="intro_message">
+        <![CDATA[
+            This sample demonstrates how to record video using Camera2 API.
+        ]]>
+    </string>
+</resources>

kotlinApp/Application/src/main/res/values/colors.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <color name="activity_background">#000</color>
+    <color name="fragment_background">#4285f4</color>
+</resources>
\ No newline at end of file

kotlinApp/Application/src/main/res/values/dimens.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <dimen name="button_padding">20dp</dimen>
+</resources>
\ No newline at end of file

kotlinApp/Application/src/main/res/values/strings.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="record">Record</string>
+    <string name="stop">Stop</string>
+    <string name="description_info">Info</string>
+    <string name="permission_request">This sample needs permission for camera and audio recording.</string>
+    <string name="camera_error">This device doesn\'t support Camera2 API.</string>
+</resources>
\ No newline at end of file

kotlinApp/Application/src/main/res/values/styles.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2017 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+    <style name="MaterialTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <item name="android:windowFullscreen">true</item>
+    </style>
+
+</resources>
\ No newline at end of file

kotlinApp/CONTRIB.md

+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://developers.google.com/open-source/cla/individual).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://developers.google.com/open-source/cla/corporate).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+

kotlinApp/README.md

+
+Android Camera2Video Sample (Kotlin)
+====================================
+
+This sample shows how to record video using the new Camera2 API in Android Lollipop.
+
+Introduction
+------------
+
+Android Lollipop introduced a new camera API, called camera2. This sample uses [CameraDevice][1]
+and [CameraCaptureSession][2] to record video. It also uses a custom [TextureView][3] to render the output.
+
+The main steps are:
+
+1. Create a custom TextureView class and add it to the layout. The purpose of the custom TextureView is
+to be able to draw itself according to an aspect ratio, which is set via a public method. Additionally,
+the `onMeasure(int widthMeasureSpec, int heightMeasureSpec)` method is overridden, using the aspect ratio.
+2. Implement a `TextureView.SurfaceTextureListener` on your TextureView, and override its
+`onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width, int height)` method to calculate
+the matrix to apply to the TextureView so the camera output fits. Use the method `setTransform(matrix)` on
+the TextureView.
+3. Implement a [`CameraDevice.StateCallback`][4] to receive events about changes of the state of the
+camera device. Override its methods to set your CameraDevice instance, start the preview, and stop
+and release the camera.
+4. When starting the preview, set up the MediaRecorder to accept video format.
+5. Then, set up a [`CaptureRequest.Builder`][5] using `createCaptureRequest(CameraDevice.TEMPLATE_RECORD)`
+on your CameraDevice instance.
+6. Then, implement a [`CameraCaptureSession.StateCallback`][6], using the method
+`createCaptureSession(surfaces, new CameraCaptureSession.StateCallback(){})` on your CameraDevice instance,
+where `surfaces` is a list consisting of the surface view of your TextureView and the surface of
+your MediaRecorder instance.
+7. Use `start()` and `stop()` methods on your MediaRecorder instance to actually start and stop the recording.
+8. Lastly, set up and clean up your camera device in `onResume()` and `onPause()`.
+
+
+[1]: https://developer.android.com/reference/android/hardware/camera2/CameraDevice.html
+[2]: http://developer.android.com/reference/android/hardware/camera2/CameraCaptureSession.html
+[3]: http://developer.android.com/reference/android/view/TextureView.html
+[4]: https://developer.android.com/reference/android/hardware/camera2/CameraDevice.StateCallback.html
+[5]: http://developer.android.com/reference/android/hardware/camera2/CaptureRequest.Builder.html
+[6]: http://developer.android.com/reference/android/hardware/camera2/CameraCaptureSession.StateCallback.html
+
+Pre-requisites
+--------------
+
+- Android SDK 27
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/1-launch.png" height="400" alt="Screenshot"/>
+<img src="screenshots/2-record.png" height="400" alt="Screenshot"/>
+<img src="screenshots/3-save.png" height="400" alt="Screenshot"/>
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-Camera2Video
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2018 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.

kotlinApp/build.gradle

+buildscript {
+    ext.kotlin_version = '1.2.0'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
\ No newline at end of file

kotlinApp/gradle/wrapper/gradle-wrapper.properties

+#Mon Dec 04 13:19:29 PST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

kotlinApp/gradlew

+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

kotlinApp/gradlew.bat

+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

kotlinApp/packaging.yaml

+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+
+status:       PUBLISHED
+technologies: [Android]
+categories:   [Media]
+languages:    [Java]
+solutions:    [Mobile]
+github:       googlesamples/android-Camera2Video
+level:        BEGINNER
+icon:         Camera2VideoSample/src/main/res/drawable-xxhdpi/ic_launcher.png
+license:      apache2

kotlinApp/settings.gradle

+include 'Application'