Examples with Keyframe com.airbnb.lottie.value.Keyframe used on opensource projects

Example 1 with Keyframe

use of com.airbnb.lottie.value.Keyframe in project lottie-android by airbnb.

the class ShapeFillParser method parse.

static ShapeFill parse(JsonReader reader, LottieComposition composition) throws IOException {
    AnimatableColorValue color = null;
    boolean fillEnabled = false;
    AnimatableIntegerValue opacity = null;
    String name = null;
    int fillTypeInt = 1;
    boolean hidden = false;
    while (reader.hasNext()) {
        switch(reader.selectName(NAMES)) {
            case 0:
                name = reader.nextString();
                break;
            case 1:
                color = AnimatableValueParser.parseColor(reader, composition);
                break;
            case 2:
                opacity = AnimatableValueParser.parseInteger(reader, composition);
                break;
            case 3:
                fillEnabled = reader.nextBoolean();
                break;
            case 4:
                fillTypeInt = reader.nextInt();
                break;
            case 5:
                hidden = reader.nextBoolean();
                break;
            default:
                reader.skipName();
                reader.skipValue();
        }
    }
    // Telegram sometimes omits opacity.
    // https://github.com/airbnb/lottie-android/issues/1600
    opacity = opacity == null ? new AnimatableIntegerValue(Collections.singletonList(new Keyframe<>(100))) : opacity;
    Path.FillType fillType = fillTypeInt == 1 ? Path.FillType.WINDING : Path.FillType.EVEN_ODD;
    return new ShapeFill(name, fillEnabled, fillType, color, opacity, hidden);
}

Example 2 with Keyframe

use of com.airbnb.lottie.value.Keyframe in project lottie-android by airbnb.

the class AnimatableTransformParser method parse.

public static AnimatableTransform parse(JsonReader reader, LottieComposition composition) throws IOException {
    AnimatablePathValue anchorPoint = null;
    AnimatableValue<PointF, PointF> position = null;
    AnimatableScaleValue scale = null;
    AnimatableFloatValue rotation = null;
    AnimatableIntegerValue opacity = null;
    AnimatableFloatValue startOpacity = null;
    AnimatableFloatValue endOpacity = null;
    AnimatableFloatValue skew = null;
    AnimatableFloatValue skewAngle = null;
    boolean isObject = reader.peek() == JsonReader.Token.BEGIN_OBJECT;
    if (isObject) {
        reader.beginObject();
    }
    while (reader.hasNext()) {
        switch(reader.selectName(NAMES)) {
            case // a
            0:
                reader.beginObject();
                while (reader.hasNext()) {
                    switch(reader.selectName(ANIMATABLE_NAMES)) {
                        case 0:
                            anchorPoint = AnimatablePathValueParser.parse(reader, composition);
                            break;
                        default:
                            reader.skipName();
                            reader.skipValue();
                    }
                }
                reader.endObject();
                break;
            case // p
            1:
                position = AnimatablePathValueParser.parseSplitPath(reader, composition);
                break;
            case // s
            2:
                scale = AnimatableValueParser.parseScale(reader, composition);
                break;
            case // rz
            3:
                composition.addWarning("Lottie doesn't support 3D layers.");
            case // r
            4:
                /*
           * Sometimes split path rotation gets exported like:
           *         "rz": {
           *           "a": 1,
           *           "k": [
           *             {}
           *           ]
           *         },
           * which doesn't parse to a real keyframe.
           */
                rotation = AnimatableValueParser.parseFloat(reader, composition, false);
                if (rotation.getKeyframes().isEmpty()) {
                    rotation.getKeyframes().add(new Keyframe<>(composition, 0f, 0f, null, 0f, composition.getEndFrame()));
                } else if (rotation.getKeyframes().get(0).startValue == null) {
                    rotation.getKeyframes().set(0, new Keyframe<>(composition, 0f, 0f, null, 0f, composition.getEndFrame()));
                }
                break;
            case // o
            5:
                opacity = AnimatableValueParser.parseInteger(reader, composition);
                break;
            case // so
            6:
                startOpacity = AnimatableValueParser.parseFloat(reader, composition, false);
                break;
            case // eo
            7:
                endOpacity = AnimatableValueParser.parseFloat(reader, composition, false);
                break;
            case // sk
            8:
                skew = AnimatableValueParser.parseFloat(reader, composition, false);
                break;
            case // sa
            9:
                skewAngle = AnimatableValueParser.parseFloat(reader, composition, false);
                break;
            default:
                reader.skipName();
                reader.skipValue();
        }
    }
    if (isObject) {
        reader.endObject();
    }
    if (isAnchorPointIdentity(anchorPoint)) {
        anchorPoint = null;
    }
    if (isPositionIdentity(position)) {
        position = null;
    }
    if (isRotationIdentity(rotation)) {
        rotation = null;
    }
    if (isScaleIdentity(scale)) {
        scale = null;
    }
    if (isSkewIdentity(skew)) {
        skew = null;
    }
    if (isSkewAngleIdentity(skewAngle)) {
        skewAngle = null;
    }
    return new AnimatableTransform(anchorPoint, position, scale, rotation, opacity, startOpacity, endOpacity, skew, skewAngle);
}

Example 3 with Keyframe

use of com.airbnb.lottie.value.Keyframe in project lottie-android by airbnb.

the class GradientFillParser method parse.

static GradientFill parse(JsonReader reader, LottieComposition composition) throws IOException {
    String name = null;
    AnimatableGradientColorValue color = null;
    AnimatableIntegerValue opacity = null;
    GradientType gradientType = null;
    AnimatablePointValue startPoint = null;
    AnimatablePointValue endPoint = null;
    Path.FillType fillType = Path.FillType.WINDING;
    boolean hidden = false;
    while (reader.hasNext()) {
        switch(reader.selectName(NAMES)) {
            case 0:
                name = reader.nextString();
                break;
            case 1:
                int points = -1;
                reader.beginObject();
                while (reader.hasNext()) {
                    switch(reader.selectName(GRADIENT_NAMES)) {
                        case 0:
                            points = reader.nextInt();
                            break;
                        case 1:
                            color = AnimatableValueParser.parseGradientColor(reader, composition, points);
                            break;
                        default:
                            reader.skipName();
                            reader.skipValue();
                    }
                }
                reader.endObject();
                break;
            case 2:
                opacity = AnimatableValueParser.parseInteger(reader, composition);
                break;
            case 3:
                gradientType = reader.nextInt() == 1 ? GradientType.LINEAR : GradientType.RADIAL;
                break;
            case 4:
                startPoint = AnimatableValueParser.parsePoint(reader, composition);
                break;
            case 5:
                endPoint = AnimatableValueParser.parsePoint(reader, composition);
                break;
            case 6:
                fillType = reader.nextInt() == 1 ? Path.FillType.WINDING : Path.FillType.EVEN_ODD;
                break;
            case 7:
                hidden = reader.nextBoolean();
                break;
            default:
                reader.skipName();
                reader.skipValue();
        }
    }
    // Telegram sometimes omits opacity.
    // https://github.com/airbnb/lottie-android/issues/1600
    opacity = opacity == null ? new AnimatableIntegerValue(Collections.singletonList(new Keyframe<>(100))) : opacity;
    return new GradientFill(name, gradientType, fillType, color, opacity, startPoint, endPoint, null, null, hidden);
}

Example 4 with Keyframe

use of com.airbnb.lottie.value.Keyframe in project lottie-android by airbnb.

the class KeyframeParser method parseKeyframe.

/**
 * beginObject will already be called on the keyframe so it can be differentiated with
 * a non animated value.
 */
private static <T> Keyframe<T> parseKeyframe(LottieComposition composition, JsonReader reader, float scale, ValueParser<T> valueParser) throws IOException {
    PointF cp1 = null;
    PointF cp2 = null;
    float startFrame = 0;
    T startValue = null;
    T endValue = null;
    boolean hold = false;
    Interpolator interpolator = null;
    // Only used by PathKeyframe
    PointF pathCp1 = null;
    PointF pathCp2 = null;
    reader.beginObject();
    while (reader.hasNext()) {
        switch(reader.selectName(NAMES)) {
            case // t
            0:
                startFrame = (float) reader.nextDouble();
                break;
            case // s
            1:
                startValue = valueParser.parse(reader, scale);
                break;
            case // e
            2:
                endValue = valueParser.parse(reader, scale);
                break;
            case // o
            3:
                cp1 = JsonUtils.jsonToPoint(reader, 1f);
                break;
            case // i
            4:
                cp2 = JsonUtils.jsonToPoint(reader, 1f);
                break;
            case // h
            5:
                hold = reader.nextInt() == 1;
                break;
            case // to
            6:
                pathCp1 = JsonUtils.jsonToPoint(reader, scale);
                break;
            case // ti
            7:
                pathCp2 = JsonUtils.jsonToPoint(reader, scale);
                break;
            default:
                reader.skipValue();
        }
    }
    reader.endObject();
    if (hold) {
        endValue = startValue;
        // TODO: create a HoldInterpolator so progress changes don't invalidate.
        interpolator = LINEAR_INTERPOLATOR;
    } else if (cp1 != null && cp2 != null) {
        interpolator = interpolatorFor(cp1, cp2);
    } else {
        interpolator = LINEAR_INTERPOLATOR;
    }
    Keyframe<T> keyframe = new Keyframe<>(composition, startValue, endValue, interpolator, startFrame, null);
    keyframe.pathCp1 = pathCp1;
    keyframe.pathCp2 = pathCp2;
    return keyframe;
}

Example 5 with Keyframe

use of com.airbnb.lottie.value.Keyframe in project lottie-android by airbnb.

the class LayerParser method parse.

public static Layer parse(JsonReader reader, LottieComposition composition) throws IOException {
    // This should always be set by After Effects. However, if somebody wants to minify
    // and optimize their json, the name isn't critical for most cases so it can be removed.
    String layerName = "UNSET";
    Layer.LayerType layerType = null;
    String refId = null;
    long layerId = 0;
    int solidWidth = 0;
    int solidHeight = 0;
    int solidColor = 0;
    int preCompWidth = 0;
    int preCompHeight = 0;
    long parentId = -1;
    float timeStretch = 1f;
    float startFrame = 0f;
    float inFrame = 0f;
    float outFrame = 0f;
    String cl = null;
    boolean hidden = false;
    BlurEffect blurEffect = null;
    DropShadowEffect dropShadowEffect = null;
    Layer.MatteType matteType = Layer.MatteType.NONE;
    AnimatableTransform transform = null;
    AnimatableTextFrame text = null;
    AnimatableTextProperties textProperties = null;
    AnimatableFloatValue timeRemapping = null;
    List<Mask> masks = new ArrayList<>();
    List<ContentModel> shapes = new ArrayList<>();
    reader.beginObject();
    while (reader.hasNext()) {
        switch(reader.selectName(NAMES)) {
            case 0:
                layerName = reader.nextString();
                break;
            case 1:
                layerId = reader.nextInt();
                break;
            case 2:
                refId = reader.nextString();
                break;
            case 3:
                int layerTypeInt = reader.nextInt();
                if (layerTypeInt < Layer.LayerType.UNKNOWN.ordinal()) {
                    layerType = Layer.LayerType.values()[layerTypeInt];
                } else {
                    layerType = Layer.LayerType.UNKNOWN;
                }
                break;
            case 4:
                parentId = reader.nextInt();
                break;
            case 5:
                solidWidth = (int) (reader.nextInt() * Utils.dpScale());
                break;
            case 6:
                solidHeight = (int) (reader.nextInt() * Utils.dpScale());
                break;
            case 7:
                solidColor = Color.parseColor(reader.nextString());
                break;
            case 8:
                transform = AnimatableTransformParser.parse(reader, composition);
                break;
            case 9:
                int matteTypeIndex = reader.nextInt();
                if (matteTypeIndex >= Layer.MatteType.values().length) {
                    composition.addWarning("Unsupported matte type: " + matteTypeIndex);
                    break;
                }
                matteType = Layer.MatteType.values()[matteTypeIndex];
                switch(matteType) {
                    case LUMA:
                        composition.addWarning("Unsupported matte type: Luma");
                        break;
                    case LUMA_INVERTED:
                        composition.addWarning("Unsupported matte type: Luma Inverted");
                        break;
                }
                composition.incrementMatteOrMaskCount(1);
                break;
            case 10:
                reader.beginArray();
                while (reader.hasNext()) {
                    masks.add(MaskParser.parse(reader, composition));
                }
                composition.incrementMatteOrMaskCount(masks.size());
                reader.endArray();
                break;
            case 11:
                reader.beginArray();
                while (reader.hasNext()) {
                    ContentModel shape = ContentModelParser.parse(reader, composition);
                    if (shape != null) {
                        shapes.add(shape);
                    }
                }
                reader.endArray();
                break;
            case 12:
                reader.beginObject();
                while (reader.hasNext()) {
                    switch(reader.selectName(TEXT_NAMES)) {
                        case 0:
                            text = AnimatableValueParser.parseDocumentData(reader, composition);
                            break;
                        case 1:
                            reader.beginArray();
                            if (reader.hasNext()) {
                                textProperties = AnimatableTextPropertiesParser.parse(reader, composition);
                            }
                            while (reader.hasNext()) {
                                reader.skipValue();
                            }
                            reader.endArray();
                            break;
                        default:
                            reader.skipName();
                            reader.skipValue();
                    }
                }
                reader.endObject();
                break;
            case 13:
                reader.beginArray();
                List<String> effectNames = new ArrayList<>();
                while (reader.hasNext()) {
                    reader.beginObject();
                    while (reader.hasNext()) {
                        switch(reader.selectName(EFFECTS_NAMES)) {
                            case 0:
                                int type = reader.nextInt();
                                if (type == 29) {
                                    blurEffect = BlurEffectParser.parse(reader, composition);
                                } else if (type == 25) {
                                    dropShadowEffect = new DropShadowEffectParser().parse(reader, composition);
                                }
                                break;
                            case 1:
                                String effectName = reader.nextString();
                                effectNames.add(effectName);
                                break;
                            default:
                                reader.skipName();
                                reader.skipValue();
                        }
                    }
                    reader.endObject();
                }
                reader.endArray();
                composition.addWarning("Lottie doesn't support layer effects. If you are using them for " + " fills, strokes, trim paths etc. then try adding them directly as contents " + " in your shape. Found: " + effectNames);
                break;
            case 14:
                timeStretch = (float) reader.nextDouble();
                break;
            case 15:
                startFrame = (float) reader.nextDouble();
                break;
            case 16:
                preCompWidth = (int) (reader.nextInt() * Utils.dpScale());
                break;
            case 17:
                preCompHeight = (int) (reader.nextInt() * Utils.dpScale());
                break;
            case 18:
                inFrame = (float) reader.nextDouble();
                break;
            case 19:
                outFrame = (float) reader.nextDouble();
                break;
            case 20:
                timeRemapping = AnimatableValueParser.parseFloat(reader, composition, false);
                break;
            case 21:
                cl = reader.nextString();
                break;
            case 22:
                hidden = reader.nextBoolean();
                break;
            default:
                reader.skipName();
                reader.skipValue();
        }
    }
    reader.endObject();
    List<Keyframe<Float>> inOutKeyframes = new ArrayList<>();
    // Before the in frame
    if (inFrame > 0) {
        Keyframe<Float> preKeyframe = new Keyframe<>(composition, 0f, 0f, null, 0f, inFrame);
        inOutKeyframes.add(preKeyframe);
    }
    // The + 1 is because the animation should be visible on the out frame itself.
    outFrame = (outFrame > 0 ? outFrame : composition.getEndFrame());
    Keyframe<Float> visibleKeyframe = new Keyframe<>(composition, 1f, 1f, null, inFrame, outFrame);
    inOutKeyframes.add(visibleKeyframe);
    Keyframe<Float> outKeyframe = new Keyframe<>(composition, 0f, 0f, null, outFrame, Float.MAX_VALUE);
    inOutKeyframes.add(outKeyframe);
    if (layerName.endsWith(".ai") || "ai".equals(cl)) {
        composition.addWarning("Convert your Illustrator layers to shape layers.");
    }
    return new Layer(shapes, composition, layerName, layerId, layerType, parentId, refId, masks, transform, solidWidth, solidHeight, solidColor, timeStretch, startFrame, preCompWidth, preCompHeight, text, textProperties, inOutKeyframes, matteType, timeRemapping, hidden, blurEffect, dropShadowEffect);
}