moshimore

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />

moshimore

android {
    compileSdkVersion 29
    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 29
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

moshimore

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextureView

moshimore

import androidx.appcompat.app.AppCompatActivity;
import androidx.camera.core.*;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.util.Log;
import android.util.Size;
import android.view.Surface;

moshimore

<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />