Help us understand the problem. What is going on with this article?

ARCoreでText表示

表示するテキストの作成

背景を白で、テキストの色を濃い青に設定
TextView tv = new TextView(this);
tv.setTextColor(Color.rgb(0x0,0x0,0xaa));
tv.setBackgroundColor(Color.rgb(0xff,0xff,0xff));
tv.setText("練習だよ");

TextActivity.java
public class TextActivity extends AppCompatActivity {
    private static final int CAMERA_PERMISSION_CODE = 0;
    private static final String CAMERA_PERMISSION = Manifest.permission.CAMERA;
    private ViewRenderable textViewRenderable;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ArCoreApk.Availability availability =
                ArCoreApk.getInstance().checkAvailability(this);
        if (availability.isSupported()) {
            Toast.makeText(this, "AR機能が利用できます", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "AR機能を利用することができません", Toast.LENGTH_SHORT).show();
            finish();
            return;
        }

        setContentView(R.layout.activity_text);

        TextView tv = new TextView(this);
        tv.setTextColor(Color.rgb(0x0,0x0,0xaa));
        tv.setBackgroundColor(Color.rgb(0xff,0xff,0xff));
        tv.setText("練習だよ");

        ArFragment arFragment = (ArFragment) getSupportFragmentManager().findFragmentById(R.id.ar_fragment);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            ViewRenderable.builder()
                    .setView(this, tv)
                    .build()
                    .thenAccept(renderable -> textViewRenderable = renderable);
        }

        if(arFragment != null ) {

            arFragment.setOnTapArPlaneListener(
                    (HitResult hitResult, Plane plane, MotionEvent motionEvent) -> {

                        Anchor anchor = hitResult.createAnchor();
                        AnchorNode anchorNode = new AnchorNode(anchor);
                        anchorNode.setParent(arFragment.getArSceneView().getScene());
                        TransformableNode text = new TransformableNode(arFragment.getTransformationSystem());
                        text.setParent(anchorNode);
                        text.setRenderable(textViewRenderable);

                    });
        }
    }


    @Override
    protected void onResume() {
        super.onResume();
        if (ContextCompat.checkSelfPermission(this, CAMERA_PERMISSION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[] {CAMERA_PERMISSION}, CAMERA_PERMISSION_CODE);
        }
    }
}
activity_text.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <fragment
        android:id="@+id/ar_fragment"
        android:name="com.google.ar.sceneform.ux.ArFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>
app.gradle
apply plugin: 'com.android.application'
apply plugin: 'com.google.ar.sceneform.plugin'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "jp.shsit.arcore3"
        minSdkVersion 24
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    //ARCore関係
    implementation 'com.google.ar:core:1.15.0'
    implementation 'com.google.ar.sceneform.ux:sceneform-ux:1.15.0'
    implementation 'com.google.ar.sceneform:core:1.15.0'
}

これがないと、エラーが出ます
compileOptions {
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
}

build.gradle
buildscript {
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'
        classpath 'com.google.ar.sceneform:plugin:1.15.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="jp.shsit.arcore3">
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.ar" android:required="true"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>


    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <meta-data android:name="com.google.ar.core" android:value="requireed"/>
        <activity android:name=".TextActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".MainActivity" />
        <activity android:name=".ViewActivity" />



    </application>

</manifest>

AR機能を必須(requireed)とするか?選択(Optional)とするか?を記述します。今回は、必須としました。
meta-data android:name="com.google.ar.core" android:value="requireed"

実行結果
text.jpg

Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
Comments
No comments
Sign up for free and join this conversation.
If you already have a Qiita account
Why do not you register as a user and use Qiita more conveniently?
You need to log in to use this function. Qiita can be used more conveniently after logging in.
You seem to be reading articles frequently this month. Qiita can be used more conveniently after logging in.
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away
ユーザーは見つかりませんでした