Update Tutorial to SDK 5.2.0 #65
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package com.example.chattutorial; | ||
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| import android.view.LayoutInflater; | ||
| import android.view.ViewGroup; | ||
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| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
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| import com.example.chattutorial.databinding.AttachmentImgurBinding; | ||
| import com.google.android.material.shape.ShapeAppearanceModel; | ||
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| import org.jetbrains.annotations.NotNull; | ||
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| import coil.Coil; | ||
| import coil.request.ImageRequest; | ||
| import io.getstream.chat.android.client.models.Attachment; | ||
| import io.getstream.chat.android.client.models.Message; | ||
| import io.getstream.chat.android.ui.message.list.adapter.MessageListListenerContainer; | ||
| import io.getstream.chat.android.ui.message.list.adapter.viewholder.attachment.AttachmentFactory; | ||
| import io.getstream.chat.android.ui.message.list.adapter.viewholder.attachment.InnerAttachmentViewHolder; | ||
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| /** A custom attachment factory to show an imgur logo if the attachment URL is an imgur image. **/ | ||
| public class ImgurAttachmentFactory implements AttachmentFactory { | ||
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| // Step 1 - Check whether the message contains an Imgur attachment | ||
| @Override | ||
| public boolean canHandle(@NonNull Message message) { | ||
| return containsImgurAttachments(message) != null; | ||
| } | ||
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| // Step 2 - Create the ViewHolder that will be used to display the Imgur logo | ||
| // over Imgur attachments | ||
| @NonNull | ||
| @Override | ||
| public InnerAttachmentViewHolder createViewHolder( | ||
| @NonNull Message message, | ||
| @Nullable MessageListListenerContainer listeners, | ||
| @NonNull ViewGroup parent | ||
| ) { | ||
| Attachment imgurAttachment = containsImgurAttachments(message); | ||
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| AttachmentImgurBinding attachmentImgurBinding = AttachmentImgurBinding.inflate(LayoutInflater.from(parent.getContext()), null, false); | ||
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| return new ImgurAttachmentViewHolder(attachmentImgurBinding, imgurAttachment); | ||
| } | ||
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| private Attachment containsImgurAttachments(@NotNull Message message) { | ||
| for (int i = 0; i < message.getAttachments().size(); i++) { | ||
| String imageUrl = message.getAttachments().get(i).getImageUrl(); | ||
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| if (imageUrl != null && imageUrl.contains("imgur")) { | ||
| return message.getAttachments().get(i); | ||
| } | ||
| } | ||
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| return null; | ||
| } | ||
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| private static class ImgurAttachmentViewHolder extends InnerAttachmentViewHolder { | ||
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| public ImgurAttachmentViewHolder(AttachmentImgurBinding binding, | ||
| @Nullable Attachment imgurAttachment) { | ||
| super(binding.getRoot()); | ||
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| ShapeAppearanceModel shapeAppearanceModel = binding.ivMediaThumb.getShapeAppearanceModel() | ||
| .toBuilder() | ||
| .setAllCornerSizes(binding.ivMediaThumb.getResources().getDimension(io.getstream.chat.android.ui.R.dimen.stream_ui_selected_attachment_corner_radius)) | ||
| .build(); | ||
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| binding.ivMediaThumb.setShapeAppearanceModel(shapeAppearanceModel); | ||
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| if (imgurAttachment != null) { | ||
| ImageRequest imageRequest = new ImageRequest.Builder(binding.getRoot().getContext()) | ||
| .data(imgurAttachment.getImageUrl()) | ||
| .allowHardware(false) | ||
| .crossfade(true) | ||
| .placeholder(io.getstream.chat.android.ui.R.drawable.stream_ui_picture_placeholder) | ||
| .target(binding.ivMediaThumb) | ||
| .build(); | ||
| Coil.imageLoader(binding.getRoot().getContext()).enqueue(imageRequest); | ||
| } | ||
| } | ||
| } | ||
| } |
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This is very clunky, but we currently don't expose any of our state classes (
ChannelState,GlobalState, ...) asLiveData.It was either this or suggesting that Java users use Coroutines, which I feel is a bigger unknown in the Java world + the syntax would still be clunky since
Flowoperators are written as extensions.