Java Code Examples for android.view.animation.Transformation#clear()

@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {
    
    t.clear();
    t.setAlpha(child == mSelectedChild ? 1.0f : mUnselectedAlpha);
    
    return true;
}
 

@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {

	int topCenterView = mHeightCenter - mChildrenHeightMiddle;
	int childTop      = Math.max(0,child.getTop());
	float offset      = (-childTop + topCenterView)/ (float) mSpaceBetweenViews;
	final Matrix matrix = t.getMatrix();
	if (offset != 0) {
		float absOffset = Math.abs(offset);
		t.clear();
		t.setTransformationType(Transformation.TYPE_MATRIX);

		float px = child.getLeft() + (child.getWidth()) / 2;
		float py = child.getTop() + (child.getHeight()) / 2; 

		if (mTranslatateEnbabled){
			matrix.setTranslate(mTranslate * absOffset, 0);
		}

		if (offset > 0) {
			matrix.preTranslate(-px,0);
			matrix.postTranslate(px,0);
		} else {
			matrix.preTranslate(-px, -py);
			matrix.postTranslate(px, py);
		}
	}
	return true;
}
 

protected boolean getChildStaticTransformation(View child, Transformation t) {
    Camera camera = new Camera();
    int leftCenterView = this.mWidthCenter - this.mChildrenWidthMiddle;
    float offset = (-child.getLeft() + leftCenterView) /
            this.mSpaceBetweenViews;
    if (offset != 0.0F) {
        float absOffset = Math.abs(offset);
        float scale = (float) Math.pow(0.8999999761581421D, absOffset);
        t.clear();
        t.setTransformationType(Transformation.TYPE_MATRIX);
        t.setAlpha(this.mSetInactiveViewTransparency);
        Matrix m = t.getMatrix();
        m.setScale(scale, scale);
        if (this.mTranslatateEnbabled) {
            m.setTranslate(0.0F, this.mTranslate * absOffset);
        }
        if (offset > 0.0F) {
            camera.save();
            camera.translate(0.0F, 0.0F, this.mViewZoomOutFactor * offset);
            camera.rotateY(this.mCoverflowRotation);
            camera.getMatrix(m);
            camera.restore();
            m.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeight);
            m.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeight);
        } else {
            camera.save();
            camera.translate(0.0F, 0.0F, -(this.mViewZoomOutFactor * offset));
            camera.rotateY(-this.mCoverflowRotation);
            camera.getMatrix(m);
            camera.restore();
            m.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeight);
            m.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeight);
        }
        this.mMatrix.reset();
        if (this.mRotationEnabled) {
            this.mMatrix.setRotate(this.mRotation * offset);
        }
        this.mMatrix.preTranslate(-this.mChildrenWidthMiddle, -this.mChildrenHeightMiddle);
        this.mMatrix.postTranslate(this.mChildrenWidthMiddle, this.mChildrenHeightMiddle);
        m.setConcat(m, this.mMatrix);
    }
    return true;
}
 

@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {
    // We can cast here because FancyCoverFlowAdapter only creates wrappers.
    CoverFlowItemWrapper item = (CoverFlowItemWrapper) child;

    // Since Jelly Bean childs won't get invalidated automatically, needs to be added for the smooth coverflow animation
    if (android.os.Build.VERSION.SDK_INT >= 16) {
        item.invalidate();
    }

    final int coverFlowWidth = this.getWidth();
    final int coverFlowCenter = coverFlowWidth / 2;
    final int childWidth = item.getWidth();
    final int childHeight = item.getHeight();
    final int childCenter = item.getLeft() + childWidth / 2;

    // Use coverflow width when its defined as automatic.
    final int actionDistance = (this.actionDistance == ACTION_DISTANCE_AUTO) ? (int) ((coverFlowWidth + childWidth) / 2.0f) : this.actionDistance;

    // Calculate the abstract amount for all effects.
    final float effectsAmount = Math.min(1.0f, Math.max(-1.0f, (1.0f / actionDistance) * (childCenter - coverFlowCenter)));

    // Clear previous transformations and set transformation type (matrix + alpha).
    t.clear();
    t.setTransformationType(Transformation.TYPE_BOTH);

    // Alpha
    if (this.unselectedAlpha != 1) {
        final float alphaAmount = (this.unselectedAlpha - 1) * Math.abs(effectsAmount) + 1;
        t.setAlpha(alphaAmount);
    }

    // Saturation
    if (this.unselectedSaturation != 1) {
        // Pass over saturation to the wrapper.
        final float saturationAmount = (this.unselectedSaturation - 1) * Math.abs(effectsAmount) + 1;
        item.setSaturation(saturationAmount);
    }

    final Matrix imageMatrix = t.getMatrix();

    // Apply rotation.
    if (this.maxRotation != 0) {
        final int rotationAngle = (int) (-effectsAmount * this.maxRotation);
        this.transformationCamera.save();
        this.transformationCamera.rotateY(rotationAngle);
        this.transformationCamera.getMatrix(imageMatrix);
        this.transformationCamera.restore();
    }

    // Zoom.
    if (this.unselectedScale != 1) {
        final float zoomAmount = (this.unselectedScale - 1) * Math.abs(effectsAmount) + 1;
        // Calculate the scale anchor (y anchor can be altered)
        final float translateX = childWidth / 2.0f;
        final float translateY = childHeight * this.scaleDownGravity;
        imageMatrix.preTranslate(-translateX, -translateY);
        imageMatrix.postScale(zoomAmount, zoomAmount);
        imageMatrix.postTranslate(translateX, translateY);
    }

    return true;
}
 

@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {
    // We can cast here because FancyCoverFlowAdapter only creates wrappers.
    FancyCoverFlowItemWrapper item = (FancyCoverFlowItemWrapper) child;

    // Since Jelly Bean childs won't get invalidated automatically, needs to be added for the smooth coverflow animation
    if (android.os.Build.VERSION.SDK_INT >= 16) {
        item.invalidate();
    }

    final int coverFlowWidth = this.getWidth();
    final int coverFlowCenter = coverFlowWidth / 2;
    final int childWidth = item.getWidth();
    final int childHeight = item.getHeight();
    final int childCenter = item.getLeft() + childWidth / 2;

    // Use coverflow width when its defined as automatic.
    final int actionDistance = (this.actionDistance == ACTION_DISTANCE_AUTO) ? (int) ((coverFlowWidth + childWidth) / 2.0f) : this.actionDistance;

    // Calculate the abstract amount for all effects.
    final float effectsAmount = Math.min(1.0f, Math.max(-1.0f, (1.0f / actionDistance) * (childCenter - coverFlowCenter)));

    // Clear previous transformations and set transformation type (matrix + alpha).
    t.clear();
    t.setTransformationType(Transformation.TYPE_BOTH);

    // Alpha
    if (this.unselectedAlpha != 1) {
        final float alphaAmount = (this.unselectedAlpha - 1) * Math.abs(effectsAmount) + 1;
        t.setAlpha(alphaAmount);
    }

    // Saturation
    if (this.unselectedSaturation != 1) {
        // Pass over saturation to the wrapper.
        final float saturationAmount = (this.unselectedSaturation - 1) * Math.abs(effectsAmount) + 1;
        item.setSaturation(saturationAmount);
    }

    final Matrix imageMatrix = t.getMatrix();

    // Apply rotation.
    if (this.maxRotation != 0) {
        final int rotationAngle = (int) (-effectsAmount * this.maxRotation);
        this.transformationCamera.save();
        this.transformationCamera.rotateY(rotationAngle);
        this.transformationCamera.getMatrix(imageMatrix);
        this.transformationCamera.restore();
    }

    // Zoom.
    if (this.unselectedScale != 1) {
        final float zoomAmount = (this.unselectedScale - 1) * Math.abs(effectsAmount) + 1;
        // Calculate the scale anchor (y anchor can be altered)
        final float translateX = childWidth / 2.0f;
        final float translateY = childHeight * this.scaleDownGravity;
        imageMatrix.preTranslate(-translateX, -translateY);
        imageMatrix.postScale(zoomAmount, zoomAmount);
        imageMatrix.postTranslate(translateX, translateY);
    }

    return true;
}
 

@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {
    // We can cast here because FancyCoverFlowAdapter only creates wrappers.
    FancyCoverFlowItemWrapper item = (FancyCoverFlowItemWrapper) child;

    // Since Jelly Bean childs won't get invalidated automatically, needs to be added for the smooth coverflow animation
    if (android.os.Build.VERSION.SDK_INT >= 16) {
        item.invalidate();
    }

    final int coverFlowWidth = this.getWidth();
    final int coverFlowCenter = coverFlowWidth / 2;
    final int childWidth = item.getWidth();
    final int childHeight = item.getHeight();
    final int childCenter = item.getLeft() + childWidth / 2;

    // Use coverflow width when its defined as automatic.
    final int actionDistance = (this.actionDistance == ACTION_DISTANCE_AUTO) ? (int) ((coverFlowWidth + childWidth) / 2.0f) : this.actionDistance;

    // Calculate the abstract amount for all effects.
    final float effectsAmount = Math.min(1.0f, Math.max(-1.0f, (1.0f / actionDistance) * (childCenter - coverFlowCenter)));

    // Clear previous transformations and set transformation type (matrix + alpha).
    t.clear();
    t.setTransformationType(Transformation.TYPE_BOTH);

    // Alpha
    if (this.unselectedAlpha != 1) {
        final float alphaAmount = (this.unselectedAlpha - 1) * Math.abs(effectsAmount) + 1;
        t.setAlpha(alphaAmount);
    }

    // Saturation
    if (this.unselectedSaturation != 1) {
        // Pass over saturation to the wrapper.
        final float saturationAmount = (this.unselectedSaturation - 1) * Math.abs(effectsAmount) + 1;
        item.setSaturation(saturationAmount);
    }

    final Matrix imageMatrix = t.getMatrix();

    // Apply rotation.
    if (this.maxRotation != 0) {
        final int rotationAngle = (int) (-effectsAmount * this.maxRotation);
        this.transformationCamera.save();
        this.transformationCamera.rotateY(rotationAngle);
        this.transformationCamera.getMatrix(imageMatrix);
        this.transformationCamera.restore();
    }

    // Zoom.
    if (this.unselectedScale != 1) {
        final float zoomAmount = (this.unselectedScale - 1) * Math.abs(effectsAmount) + 1;
        // Calculate the scale anchor (y anchor can be altered)
        final float translateX = childWidth / 2.0f;
        final float translateY = childHeight * this.scaleDownGravity;
        imageMatrix.preTranslate(-translateX, -translateY);
        imageMatrix.postScale(zoomAmount, zoomAmount);
        imageMatrix.postTranslate(translateX, translateY);
    }

    return true;
}