prakashpun

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        // Initialize the Mobile Ads SDK.
        MobileAds.initialize(this,getString(R.string.admob_app_id));
        mRewardedVideoAd = MobileAds.getRewardedVideoAdInstance(this);
        ...
    }

prakashpun

<resources>
    ...
    <string name="admob_app_id">ca-app-pub-3940256099942544~3347511713</string>
    <string name="ad_unit_id">ca-app-pub-3940256099942544/5224354917</string>
    ...
</resources>

prakashpun

dependencies {
    ...
    compile 'com.google.firebase:firebase-ads:11.8.0'
    ...
}
//Dont forget to apply the plugin below
apply plugin: 'com.google.gms.google-services'

prakashpun

buildscript {   
    repositories {
        jcenter()
    }
    dependencies {
        ...
        classpath 'com.google.gms:google-services:3.0.0'
    }
}

prakashpun

textRecognizer.setProcessor(new Detector.Processor<TextBlock>() {
                @Override
                public void release() {
                }

                /**
                 * Detect all the text from camera using TextBlock and the save values into a stringBuilder
                 * which will then be set to the textView.
                 * */
                @Override

prakashpun

mCameraSource = new CameraSource.Builder(getApplicationContext(), textRecognizer)
                    .setFacing(CameraSource.CAMERA_FACING_BACK)
                    .setRequestedPreviewSize(1280, 1024)
                    .setAutoFocusEnabled(true)
                    .setRequestedFps(2.0f)
                    .build();

prakashpun

private void startCameraSource() {

        //Create the TextRecognizer
        final TextRecognizer textRecognizer = new TextRecognizer.Builder(getApplicationContext()).build();

        if (!textRecognizer.isOperational()) {
            Log.w(TAG, "Detector dependencies not loaded yet");
        } else {

            //Initialize camerasource to use high resolution and set Autofocus on.

prakashpun

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:weightSum="5"
    tools:context="com.tuts.prakash.simpleocr.MainActivity">
    <SurfaceView
        android:id="@+id/surfaceView"

prakashpun

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.tuts.prakash.simpleocr">
    <uses-permission android:name="android.permission.CAMERA"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"

prakashpun

dependencies {
    ...
    compile 'com.google.android.gms:play-services-vision:11.0.4'
    ...
}