Map Render Blanks

[firdauskz01]

Hi, I'm trying to compile on Android SDK 29, but I got white blank. This my code :

 UrlTileSource tileSource = DefaultSources.OPENSTREETMAP.build();

            // Vector layer
            VectorTileLayer tileLayer = mapView.map().setBaseMap(tileSource);

            // Building layer
            mapView.map().layers().add(new BuildingLayer(mapView.map(), tileLayer));

            // Label layer
            mapView.map().layers().add(new LabelLayer(mapView.map(), tileLayer));

            // Render theme
            mapView.map().setTheme(VtmThemes.DEFAULT);

            // Scale bar
            MapScaleBar mapScaleBar = new DefaultMapScaleBar(mapView.map());
            MapScaleBarLayer mapScaleBarLayer = new MapScaleBarLayer(mapView.map(), mapScaleBar);
            mapScaleBarLayer.getRenderer().setPosition(GLViewport.Position.BOTTOM_LEFT);
            mapScaleBarLayer.getRenderer().setOffset(5 * CanvasAdapter.getScale(), 0);
            mapView.map().layers().add(mapScaleBarLayer);

            // Note: this map position is specific to Berlin area
            mapView.map().setMapPosition(52.517037, 13.38886, 1 << 12);
            mapView.map().render();
            mapView.map().updateMap();

and this is my manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="mapsforgevtm.test">

    <uses-permission android:name="android.permission.INTERNET" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:requestLegacyExternalStorage="true"
        android:usesCleartextTraffic="true"
        android:theme="@style/Theme.MapsforgeVTM">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

and this is my app.build gradle

    id 'com.android.application'
}

android {
    compileSdkVersion 29
    buildToolsVersion "30.0.2"

    defaultConfig {
        applicationId "mapsforgevtm.test"
        minSdkVersion 21
        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 'androidx.appcompat:appcompat:1.3.0'
    implementation 'com.google.android.material:material:1.3.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    //vtm core
    implementation 'org.mapsforge:vtm:0.16.0'
    implementation 'org.mapsforge:vtm-themes:0.16.0'
    implementation 'net.sf.kxml:kxml2:2.3.0'
    implementation 'org.slf4j:slf4j-api:1.7.29'
    
//    vtm android libgdx
    implementation 'org.mapsforge:vtm-android:0.16.0'
    implementation 'org.mapsforge:vtm-android:0.16.0:natives-armeabi-v7a'
    implementation 'org.mapsforge:vtm-android:0.16.0:natives-arm64-v8a'
    implementation 'org.mapsforge:vtm-android:0.16.0:natives-x86'
    implementation 'org.mapsforge:vtm-android:0.16.0:natives-x86_64'
    implementation 'org.mapsforge:vtm-gdx:0.16.0'
    implementation 'org.mapsforge:vtm-android-gdx:0.16.0'
    implementation 'org.mapsforge:vtm-android-gdx:0.16.0:natives-armeabi-v7a'
    implementation 'org.mapsforge:vtm-android-gdx:0.16.0:natives-arm64-v8a'
    implementation 'org.mapsforge:vtm-android-gdx:0.16.0:natives-x86'
    implementation 'org.mapsforge:vtm-android-gdx:0.16.0:natives-x86_64'
    implementation 'com.badlogicgames.gdx:gdx:1.9.10'
    implementation 'com.badlogicgames.gdx:gdx-backend-android:1.9.10'
    implementation 'com.caverock:androidsvg:1.4'
}

this is the result

perhaps I'm missing something? Please help me

[devemux86]

See the getting started example (and integration guide).

And compare your code with the various samples in vtm-android-example.

You cannot use vector features on bitmap tile sources (see the BitmapTileActivity sample).

[firdauskz01]

Where I can find other online vector tiles @devemux86 ?

[devemux86]

Where I can find other online vector tiles

As mentioned above study the vtm-android-example.

There are samples with online vector tiles, like Mapilion or OpenMapTiles.
You can probably find more if you search the internet.

[firdauskz01]

Thanks @devemux86
I apologize, I'm still studying it :)

Now I'm using the offline map, downloaded from mapsforge v5

and try using this code

 File mapFile = getExternalFilesDir("indonesia.map");
  MultiMapFileTileSource tileSource = new MultiMapFileTileSource();
//            for (File mapFile : mapFiles) {
            MapFileTileSource mapFileTileSource = new MapFileTileSource();
            mapFileTileSource.setMapFile(mapFile.getAbsolutePath());
            tileSource.add(mapFileTileSource);
//            }

  VectorTileLayer tileLayer = mapView.map().setBaseMap(tileSource);

  // Building layer
            mapView.map().layers().add(new BuildingLayer(mapView.map(), tileLayer));

            // Label layer
            mapView.map().layers().add(new LabelLayer(mapView.map(), tileLayer));

            // Render theme
            mapView.map().setTheme(VtmThemes.DEFAULT);

but still shows blank.

[devemux86]

It is impossible to debug everyone's code.

There are the getting started and other samples, you can study and compare your code with them.

[firdauskz01]

Yes agreed, thank you so much @devemux86
now it's working with offline maps. Really apologize I'm still learning about it. :)
Now, I will search the online vector tiles.