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MessagesList.java
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MessagesList.java
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/*******************************************************************************
* Copyright 2016 stfalcon.com
* <p>
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
package com.stfalcon.chatkit.messages;
import android.content.Context;
import android.util.AttributeSet;
import androidx.annotation.Nullable;
import androidx.recyclerview.widget.DefaultItemAnimator;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.SimpleItemAnimator;
import com.stfalcon.chatkit.commons.models.IMessage;
/**
* Component for displaying list of messages
*/
public class MessagesList extends RecyclerView {
private MessagesListStyle messagesListStyle;
public MessagesList(Context context) {
super(context);
}
public MessagesList(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
parseStyle(context, attrs);
}
public MessagesList(Context context, @Nullable AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
parseStyle(context, attrs);
}
/**
* Don't use this method for setting your adapter, otherwise exception will by thrown.
* Call {@link #setAdapter(MessagesListAdapter)} instead.
*/
@Override
public void setAdapter(Adapter adapter) {
throw new IllegalArgumentException("You can't set adapter to MessagesList. Use #setAdapter(MessagesListAdapter) instead.");
}
/**
* Sets adapter for MessagesList
*
* @param adapter Adapter. Must extend MessagesListAdapter
* @param <MESSAGE> Message model class
*/
public <MESSAGE extends IMessage>
void setAdapter(MessagesListAdapter<MESSAGE> adapter) {
setAdapter(adapter, true);
}
/**
* Sets adapter for MessagesList
*
* @param adapter Adapter. Must extend MessagesListAdapter
* @param reverseLayout weather to use reverse layout for layout manager.
* @param <MESSAGE> Message model class
*/
public <MESSAGE extends IMessage>
void setAdapter(MessagesListAdapter<MESSAGE> adapter, boolean reverseLayout) {
SimpleItemAnimator itemAnimator = new DefaultItemAnimator();
itemAnimator.setSupportsChangeAnimations(false);
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext(),
LinearLayoutManager.VERTICAL, reverseLayout);
setItemAnimator(itemAnimator);
setLayoutManager(layoutManager);
adapter.setLayoutManager(layoutManager);
adapter.setStyle(messagesListStyle);
addOnScrollListener(new RecyclerScrollMoreListener(layoutManager, adapter));
super.setAdapter(adapter);
}
@SuppressWarnings("ResourceType")
private void parseStyle(Context context, AttributeSet attrs) {
messagesListStyle = MessagesListStyle.parse(context, attrs);
}
}