create a PreviewCameraTwo to be used with Camera2 API on Android 5+

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

@@ -24,6 +24,7 @@ import com.simplemobiletools.camera.interfaces.MyPreview
 import com.simplemobiletools.camera.views.FocusCircleView
 import com.simplemobiletools.camera.views.PreviewCameraOne
 import com.simplemobiletools.camera.views.PreviewCameraOne.PreviewListener
+import com.simplemobiletools.camera.views.PreviewCameraTwo
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.Release
@@ -190,7 +191,7 @@ class MainActivity : SimpleActivity(), PreviewListener, PhotoProcessor.MediaSave
 
         (btn_holder.layoutParams as RelativeLayout.LayoutParams).setMargins(0, 0, 0, (navBarHeight + resources.getDimension(R.dimen.activity_margin)).toInt())
 
-        mPreview = PreviewCameraOne(this, camera_surface_view, this)
+        mPreview = if (isLollipopPlus()) PreviewCameraTwo(this) else PreviewCameraOne(this, camera_surface_view, this)
         view_holder.addView(mPreview as ViewGroup)
 
         val imageDrawable = if (config.lastUsedCamera == mCameraImpl.getBackCameraId()) R.drawable.ic_camera_front else R.drawable.ic_camera_rear

app/src/main/kotlin/com/simplemobiletools/camera/views/PreviewCameraTwo.kt

@@ -0,0 +1,72 @@
+package com.simplemobiletools.camera.views
+
+import android.content.Context
+import android.net.Uri
+import android.view.ViewGroup
+import com.simplemobiletools.camera.helpers.STATE_PREVIEW
+import com.simplemobiletools.camera.interfaces.MyPreview
+
+class PreviewCameraTwo(context: Context) : ViewGroup(context), MyPreview {
+    private var mTargetUri: Uri? = null
+    private var mIsImageCaptureIntent = false
+
+    override fun setTargetUri(uri: Uri) {
+        mTargetUri = uri
+    }
+
+    override fun setIsImageCaptureIntent(isImageCaptureIntent: Boolean) {
+        mIsImageCaptureIntent = isImageCaptureIntent
+    }
+
+    override fun setFlashlightState(state: Int) {
+    }
+
+    override fun setCamera(cameraId: Int): Boolean {
+        return false
+    }
+
+    override fun getCameraState(): Int {
+        return STATE_PREVIEW
+    }
+
+    override fun releaseCamera() {
+    }
+
+    override fun showChangeResolutionDialog() {
+    }
+
+    override fun toggleFrontBackCamera() {
+    }
+
+    override fun toggleFlashlight() {
+    }
+
+    override fun tryTakePicture() {
+    }
+
+    override fun toggleRecording(): Boolean {
+        return false
+    }
+
+    override fun tryInitVideoMode() {
+    }
+
+    override fun initPhotoMode() {
+    }
+
+    override fun initVideoMode(): Boolean {
+        return false
+    }
+
+    override fun checkFlashlight() {
+    }
+
+    override fun deviceOrientationChanged() {
+    }
+
+    override fun resumeCamera(): Boolean {
+        return false
+    }
+
+    override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {}
+}