Mobile Development 29 min read

How to Render Server‑Delivered SVGs on Android: Libraries, Code & Pitfalls

Android only supports Vector drawables, but many apps need to display server‑delivered SVGs; this article compares several approaches—including AndroidSVG, Glide integration, PathView, custom SvgDrawable, and IconFont—detailing setup, code snippets, rendering pipelines, animation limits, and practical recommendations for mobile developers.

Sohu Tech Products
Sohu Tech Products
Sohu Tech Products
How to Render Server‑Delivered SVGs on Android: Libraries, Code & Pitfalls

Android’s built‑in vector support is limited to VectorDrawable resources packaged with the app; it cannot directly load external SVG files. Many projects need to display server‑delivered SVG graphics (e.g., theme icons, seasonal icons).

AndroidSVG library

AndroidSVG is an open‑source SVG parser and renderer that implements most of SVG 1.1 and SVG 1.2 Tiny static visual tags (filters and animation tags are not supported). Add the library via Gradle:

dependencies {
    implementation 'com.caverock:androidsvg:1.4'
}

Place an SVG file (e.g., test2.svg) in res/raw/ and render it in an ImageView:

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ImageView imageView = findViewById(R.id.imageView);
        try {
            SVG svg = SVG.getFromResource(getResources(), R.raw.test2);
            imageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
            imageView.setImageDrawable(new PictureDrawable(svg.renderToPicture()));
        } catch (SVGParseException e) {
            Log.d("SVG", e.getMessage());
        }
    }
}

The library also provides SVGImageView, which can load a resource ID directly or be given an SVG object for reuse.

Source code and releases are available at https://github.com/BigBadaboom/androidsvg.

Loading SVG with Glide

Glide’s SVG sample wraps AndroidSVG and converts the result to a PictureDrawable. Import the four helper classes ( SvgDecoder, SvgDrawableTranscoder, SvgSoftwareLayerSetter, SvgModule) and add Glide dependencies:

dependencies {
    implementation "com.github.bumptech.glide:glide:4.16.0"
    annotationProcessor "com.github.bumptech.glide:compiler:4.14.2"
    implementation "com.github.bumptech.glide:annotations:4.16.0"
    implementation "com.github.bumptech.glide:okhttp3-integration:4.16.0"
}

Load a local SVG resource:

Uri uri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" +
        getPackageName() + "/" + R.raw.test2);
Glide.with(this)
    .as(PictureDrawable.class)
    .placeholder(R.drawable.placeholder)
    .error(R.drawable.ic_error)
    .listener(new SvgSoftwareLayerSetter())
    .load(uri)
    .into(imageView);

Load a remote SVG URL:

Uri uriNet = Uri.parse("https://www.w3.org/TR/SVG11/images/shapes/polygon01.svg");
Glide.with(this).as(PictureDrawable.class).load(uriNet).into(imageViewRemote);

PathView library

PathView builds on AndroidSVG to provide simple path‑animation. It animates the drawing of <path> elements using ObjectAnimator. Layout example:

<com.eftimoff.androipathview.PathView
    android:id="@+id/pathView"
    android:layout_width="150dp"
    android:layout_height="150dp"
    app:pathColor="@android:color/white"
    app:svg="@raw/monitor"
    app:pathWidth="5dp" />

Start the animation in code:

PathView pathView = findViewById(R.id.pathView);
pathView.setFillAfter(true);
pathView.useNaturalColors();
pathView.getPathAnimator().duration(3000).start();

The library loads the SVG on a background thread, extracts all paths, and progressively draws them according to the animation progress.

Custom SvgDrawable attempts

Approach 1 – Convert an SVG file to a Vector XML string and inflate it with VectorDrawable.inflate. This works only for resources compiled under res/drawable. When using a raw resource, VectorDrawable expects a compiled XmlBlock.Parser, causing a ClassCastException.

Approach 2 – Reflectively access the private mVectorState field of VectorDrawable to set viewport size and other attributes from an SVG DOM. On newer Android versions the field is hidden, resulting in a NoSuchFieldException. Both attempts demonstrate the difficulty of reusing the internal VectorDrawable implementation for arbitrary SVG content.

IconFont (vector font) technique

SVG icons can be converted into a TrueType font ( .ttf) using services such as https://www.iconfont.cn/. After downloading the generated font, treat icons as text:

<TextView
    android:id="@+id/iconText"
    android:layout_width="300dp"
    android:layout_height="200dp"
    android:gravity="top|center_horizontal"
    android:textSize="30sp"
    android:text="\uE8AB \uE8B0" />
Typeface iconFont = Typeface.createFromAsset(getAssets(), "iconfont.ttf");
TextView tv = findViewById(R.id.iconText);
tv.setTypeface(iconFont);

This method offers perfect scalability and easy color changes but is limited to simple glyph shapes; complex gradients or filters cannot be represented.

Comparison of Android vector solutions

VectorDrawable – native, supports a small subset of tags, fast, suitable for basic icons.

AndroidSVG – near‑complete SVG 1.1 support, richer styling, slightly slower; works with Glide for remote SVGs.

IconFont – treats SVG icons as a font, excellent scaling, limited to glyph‑style graphics.

AnimatedVectorDrawable – built‑in animation of VectorDrawable properties, easy to use, limited animation types.

PathView – wraps AndroidSVG, adds basic path‑drawing animation.

Lottie – supports complex After Effects animations; larger file size and higher runtime cost.

Choosing the right solution depends on graphic complexity, animation requirements, and performance constraints of the target Android application.

AndroidSVGiconfontGlideVectorDrawablePathView
Sohu Tech Products
Written by

Sohu Tech Products

A knowledge-sharing platform for Sohu's technology products. As a leading Chinese internet brand with media, video, search, and gaming services and over 700 million users, Sohu continuously drives tech innovation and practice. We’ll share practical insights and tech news here.

0 followers
Reader feedback

How this landed with the community

Sign in to like

Rate this article

Was this worth your time?

Sign in to rate
Discussion

0 Comments

Thoughtful readers leave field notes, pushback, and hard-won operational detail here.