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March 26, 2017 20:16
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Android Picasso target to display an image view in a map icon
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| // Create new image target | |
| final SimpleImageTarget newTarget = new SimpleImageTarget( | |
| clusterItem.getSpot(), marker, markerImageView, iconGenerator); | |
| // Store target reference - remove later | |
| if (!imageTargets.containsKey(clusterItem.getSpot().getId())) { | |
| imageTargets.put(clusterItem.getSpot().getId(), newTarget); | |
| } | |
| // Kick off image loading | |
| Picasso.with(context) | |
| .load(clusterItem.getSpot().getImageUrl()) | |
| .noFade() | |
| .resize(dimensions, dimensions) | |
| .onlyScaleDown() | |
| .into(newTarget); | |
| // Target class | |
| public class SimpleImageTarget implements Target { | |
| private final Spot spot; | |
| private final Marker marker; | |
| private final ImageView markerImageView; | |
| private final IconGenerator iconGenerator; | |
| public SimpleImageTarget(Spot spot, Marker marker, ImageView markerImageView, IconGenerator iconGenerator) { | |
| this.spot = spot; | |
| this.marker = marker; | |
| this.markerImageView = markerImageView; | |
| this.iconGenerator = iconGenerator; | |
| } | |
| @Override | |
| public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) { | |
| markerImageView.setImageBitmap(bitmap); | |
| iconGenerator.setColor(CategoryHelper.getColor(spot.getCategory())); | |
| final Bitmap markerBitmap = iconGenerator.makeIcon(); | |
| if (marker.getTag() != null) { | |
| marker.setIcon(BitmapDescriptorFactory.fromBitmap(markerBitmap)); | |
| } | |
| } | |
| @Override | |
| public void onBitmapFailed(Drawable errorDrawable) { | |
| // NOOP | |
| } | |
| @Override | |
| public void onPrepareLoad(Drawable placeHolderDrawable) { | |
| // NOOP | |
| } | |
| } | |
| // Target if a custom view is needed - inflate using the LayoutInflater and pass in an instance | |
| public class CustomViewTarget implements Target { | |
| private final Spot spot; | |
| private final Marker marker; | |
| private final View customMarkerView; | |
| public CustomViewTarget(Spot spot, Marker marker, View customMarkerView) { | |
| this.spot = spot; | |
| this.marker = marker; | |
| this.customMarkerView = customMarkerView; | |
| } | |
| @Override | |
| public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) { | |
| // Set downloaded image in image view | |
| final ImageView imageView = (ImageView) customMarkerView.findViewById(R.id.profile_image); | |
| imageView.setImageBitmap(bitmap); | |
| // Measure layout | |
| customMarkerView.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED); | |
| customMarkerView.layout(0, 0, customMarkerView.getMeasuredWidth(), customMarkerView.getMeasuredHeight()); | |
| customMarkerView.buildDrawingCache(); | |
| // Get spot color | |
| int spotColor = CategoryHelper.getColor(spot.getCategory()); | |
| // Create bitmap and canvas | |
| final Bitmap markerBitmapFromView = Bitmap.createBitmap(customMarkerView.getMeasuredWidth(), customMarkerView.getMeasuredHeight(), Bitmap.Config.ARGB_8888); | |
| final Canvas canvas = new Canvas(markerBitmapFromView); | |
| canvas.drawColor(Color.WHITE, PorterDuff.Mode.SRC_IN); | |
| // Draw view to canvas | |
| final Drawable drawable = customMarkerView.getBackground(); | |
| drawable.setColorFilter(new PorterDuffColorFilter(spotColor, PorterDuff.Mode.SRC_ATOP)); | |
| //customMarkerView.getBackground().setColorFilter(new PorterDuffColorFilter(Color.BLUE, PorterDuff.Mode.MULTIPLY)); | |
| customMarkerView.draw(canvas); | |
| // Set bitmap as icon | |
| marker.setIcon(BitmapDescriptorFactory.fromBitmap(markerBitmapFromView)); | |
| } | |
| @Override | |
| public void onBitmapFailed(Drawable errorDrawable) { | |
| Timber.d("onBitmapFailed!"); | |
| } | |
| @Override | |
| public void onPrepareLoad(Drawable placeHolderDrawable) { | |
| Timber.d("onPrepareLoad!"); | |
| } | |
| @Override | |
| public int hashCode() { | |
| return marker.hashCode(); | |
| } | |
| @Override | |
| public boolean equals(Object o) { | |
| if (o instanceof CustomViewTarget) { | |
| Marker marker = ((CustomViewTarget) o).marker; | |
| return this.marker.equals(marker); | |
| } else { | |
| return false; | |
| } | |
| } | |
| public Marker getMarker() { | |
| return marker; | |
| } | |
| public Spot getSpot() { | |
| return spot; | |
| } | |
| } |
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