FitCropAndroidVision

A simple demo of Android Vision (https://github.com/googlesamples/android-vision) scan barcode with camera preview fit view size without stretch issue

Screenshot

Layout Example

```xml

<vn.vadaihiep.fitcropandroidvision.camera.CameraSourcePreview
    android:id="@+id/preview"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1" />

<TextView
    android:id="@+id/txtResult"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:gravity="center"
    android:text="Result here"
    android:textSize="16sp" />

```