融云即时通讯SDK集成 — 定制UI(二) ——添加自定义表情库

背景:

最近公司新上的app要加上即时通讯的功能, 自己快速实现一个当然是不可能的了(项目deadline也顶不住哇).就从各家成熟的SDK厂商选来选去的, 各有各的好也各有各的不足.最后点兵点将,选了融云家的SDK(老板说了算hhhh).
他家的官网和文档地址:
官网:https://www.rongcloud.cn/
文档:https://docs.rongcloud.cn/v4
这个任务当然还是落在我的头上. 我是使用的他们家的带UI的sdk,(他们家有带UI和不带UI的两种sdk, 不带UI的sdk就是只有即时通讯能力, 所有的UI都需要开发者自定实现, 带UI的sdk封装了一些基本的界面,例如会话列表, 和别人聊天的会话界面.)当然这些已经集成了UI的sdk并不能完全满足一个产品的需求, 所以这篇文章跟大家讲下如何添加一套自定义的表情包.

效果如下哈:

/uploads/files_user1/article/5fc74a7cb4349235499.jpg

虽然这里有点难看了哈哈, 不过是为了给大家展示方法嘛, 就不管那么多了. 可以看到底下除了默认的emoji的表情包, 还多了一个tab, 我是从QQ表情搞了一套, 直接就加在这里了. 一个可爱的小猪猪🐷哈哈哈.

添加步骤

需要改动的有这么几个类:

AndroidEmoji: 控制emoji图标资源, 编码, 以及相应展示的类
RongExtension: 会话界面除去聊天气泡与title bar的整个下方输入区域
IEmoticonTab: 表情tab
DefaultExtensionModule: 表情tab的上层控件.

对于AndroidEmoji这个类, 可以直接照抄, 把资源文件替换成自己准备好的图标, 以及编码/描述

public class ConversationListAdapter extends BaseAdapter<UIConversation> {
    private final static String TAG = "ConversationListAdapter";
    LayoutInflater mInflater;
    Context mContext;
    @Override
    public long getItemId(int position) {
        UIConversation conversation = getItem(position);
        if (conversation == null)
            return 0;
        return conversation.hashCode();
    }
    protected class ViewHolder {
        public View layout;
        public View leftImageLayout;
        public View rightImageLayout;
        public View leftUnReadView;
        public View rightUnReadView;
        public AsyncImageView leftImageView;
        public TextView unReadMsgCount;
        public ImageView unReadMsgCountIcon;
        public AsyncImageView rightImageView;
        public TextView unReadMsgCountRight;
        public ImageView unReadMsgCountRightIcon;
        public ProviderContainerView contentView;
    }
    public ConversationListAdapter(Context context) {
        super();
        mContext = context;
        mInflater = LayoutInflater.from(mContext);
    }
    public int findGatheredItem(Conversation.ConversationType type) {
        int index = getCount();
        int position = -1;
        while ((index-- > 0)) {
            UIConversation uiConversation = getItem(index);
            if (uiConversation.getConversationType().equals(type)) {
                position = index;
                break;
            }
        }
        return position;
    }
    public int findPosition(Conversation.ConversationType type, String targetId) {
        int index = getCount();
        int position = -1;
        while (index-- > 0) {
            if (getItem(index).getConversationType().equals(type)
                    && getItem(index).getConversationTargetId().equals(targetId)) {
                position = index;
                break;
            }
        }
        return position;
    }
    @Override
    protected View newView(Context context, int position, ViewGroup group) {
        View result = mInflater.inflate(R.layout.rc_item_conversation, null);
        ViewHolder holder = new ViewHolder();
        holder.layout = findViewById(result, R.id.rc_item_conversation);
        holder.leftImageLayout = findViewById(result, R.id.rc_item1);
        holder.rightImageLayout = findViewById(result, R.id.rc_item2);
        holder.leftUnReadView = findViewById(result, R.id.rc_unread_view_left);
        holder.rightUnReadView = findViewById(result, R.id.rc_unread_view_right);
        holder.leftImageView = findViewById(result, R.id.rc_left);
        holder.rightImageView = findViewById(result, R.id.rc_right);
        holder.contentView = findViewById(result, R.id.rc_content);
        holder.unReadMsgCount = findViewById(result, R.id.rc_unread_message);
        holder.unReadMsgCountRight = findViewById(result, R.id.rc_unread_message_right);
        holder.unReadMsgCountIcon = findViewById(result, R.id.rc_unread_message_icon);
        holder.unReadMsgCountRightIcon = findViewById(result, R.id.rc_unread_message_icon_right);
        result.setTag(holder);
        return result;
    }
    @Override
    protected void bindView(View v, int position, final UIConversation data) {
        ViewHolder holder = (ViewHolder) v.getTag();
        if (data == null) {
            return;
        }
        /*通过会话类型,获得对应的会话provider.ex: PrivateConversationProvider*/
        IContainerItemProvider provider = RongContext.getInstance().getConversationTemplate(data.getConversationType().getName());
        if (provider == null) {
            RLog.e(TAG, "provider is null");
            return;
        }
        View view = holder.contentView.inflate(provider);
        provider.bindView(view, position, data);
        //设置背景色
        if (data.isTop())
            holder.layout.setBackgroundDrawable(mContext.getResources().getDrawable(R.drawable.rc_item_top_list_selector));
        else
            holder.layout.setBackgroundDrawable(mContext.getResources().getDrawable(R.drawable.rc_item_list_selector));
        ConversationProviderTag tag = RongContext.getInstance().getConversationProviderTag(data.getConversationType().getName());
        int defaultId;
        if (data.getConversationType().equals(Conversation.ConversationType.GROUP)) {
            defaultId = R.drawable.rc_default_group_portrait;
        } else if (data.getConversationType().equals(Conversation.ConversationType.DISCUSSION)) {
            defaultId = R.drawable.rc_default_discussion_portrait;
        } else {
            defaultId = R.drawable.rc_default_portrait;
        }
        // 1:图像靠左显示。2:图像靠右显示。3:不显示图像。
        if (tag.portraitPosition() == 1) {
            holder.leftImageLayout.setVisibility(View.VISIBLE);
            holder.leftImageLayout.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (mOnPortraitItemClick != null)
                        mOnPortraitItemClick.onPortraitItemClick(v, data);
                }
            });
            holder.leftImageLayout.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    if (mOnPortraitItemClick != null)
                        mOnPortraitItemClick.onPortraitItemLongClick(v, data);
                    return true;
                }
            });
            if (data.getConversationGatherState()) {
                holder.leftImageView.setAvatar(null, defaultId);
            } else {
                if (data.getIconUrl() != null) {
                    holder.leftImageView.setAvatar(data.getIconUrl().toString(), defaultId);
                } else {
                    holder.leftImageView.setAvatar(null, defaultId);
                }
            }
            if (data.getUnReadMessageCount() > 0) {
                holder.unReadMsgCountIcon.setVisibility(View.VISIBLE);
                setUnReadViewLayoutParams(holder.leftUnReadView, data.getUnReadType());
                if (data.getUnReadType().equals(UIConversation.UnreadRemindType.REMIND_WITH_COUNTING)) {
                    if (data.getUnReadMessageCount() > 99) {
                        holder.unReadMsgCount.setText(mContext.getResources().getString(R.string.rc_message_unread_count));
                    } else {
                        holder.unReadMsgCount.setText(Integer.toString(data.getUnReadMessageCount()));
                    }
                    holder.unReadMsgCount.setVisibility(View.VISIBLE);
                    holder.unReadMsgCountIcon.setImageResource(R.drawable.rc_unread_count_bg);
                } else {
                    holder.unReadMsgCount.setVisibility(View.GONE);
                    holder.unReadMsgCountIcon.setImageResource(R.drawable.rc_unread_remind_list_count);
                }
            } else {
                holder.unReadMsgCountIcon.setVisibility(View.GONE);
                holder.unReadMsgCount.setVisibility(View.GONE);
            }
            holder.rightImageLayout.setVisibility(View.GONE);
        } else if (tag.portraitPosition() == 2) {
            holder.rightImageLayout.setVisibility(View.VISIBLE);
            holder.rightImageLayout.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (mOnPortraitItemClick != null)
                        mOnPortraitItemClick.onPortraitItemClick(v, data);
                }
            });
            holder.rightImageLayout.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    if (mOnPortraitItemClick != null)
                        mOnPortraitItemClick.onPortraitItemLongClick(v, data);
                    return true;
                }
            });
            if (data.getConversationGatherState()) {
                holder.rightImageView.setAvatar(null, defaultId);
            } else {
                if (data.getIconUrl() != null) {
                    holder.rightImageView.setAvatar(data.getIconUrl().toString(), defaultId);
                } else {
                    holder.rightImageView.setAvatar(null, defaultId);
                }
            }
            if (data.getUnReadMessageCount() > 0) {
                holder.unReadMsgCountRightIcon.setVisibility(View.VISIBLE);
                setUnReadViewLayoutParams(holder.rightUnReadView, data.getUnReadType());
                if (data.getUnReadType().equals(UIConversation.UnreadRemindType.REMIND_WITH_COUNTING)) {
                    holder.unReadMsgCount.setVisibility(View.VISIBLE);
                    if (data.getUnReadMessageCount() > 99) {
                        holder.unReadMsgCountRight.setText(mContext.getResources().getString(R.string.rc_message_unread_count));
                    } else {
                        holder.unReadMsgCountRight.setText(Integer.toString(data.getUnReadMessageCount()));
                    }
                    holder.unReadMsgCountRightIcon.setImageResource(R.drawable.rc_unread_count_bg);
                } else {
                    holder.unReadMsgCount.setVisibility(View.GONE);
                    holder.unReadMsgCountRightIcon.setImageResource(R.drawable.rc_unread_remind_without_count);
                }
            } else {
                holder.unReadMsgCountIcon.setVisibility(View.GONE);
                holder.unReadMsgCount.setVisibility(View.GONE);
            }
            holder.leftImageLayout.setVisibility(View.GONE);
        } else if (tag.portraitPosition() == 3) {
            holder.rightImageLayout.setVisibility(View.GONE);
            holder.leftImageLayout.setVisibility(View.GONE);
        } else {
            throw new IllegalArgumentException("the portrait position is wrong!");
        }
        MessageContent content = data.getMessageContent();
        if (content != null && content.isDestruct()) {
            RongIMClient.getInstance().getMessage(data.getLatestMessageId(), new RongIMClient.ResultCallback<Message>() {
                @Override
                public void onSuccess(Message message) {
                    if (message == null) {
                        EventBus.getDefault().post(new Event.MessageDeleteEvent(data.getLatestMessageId()));
                    }
                }
                @Override
                public void onError(RongIMClient.ErrorCode e) {
                }
            });
        }
    }
    protected void setUnReadViewLayoutParams(View view, UIConversation.UnreadRemindType type) {
        ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
        Context context = view.getContext();
        if (type == UIConversation.UnreadRemindType.REMIND_WITH_COUNTING) {
            params.width = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_18);
            params.height = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_18);
            params.leftMargin = (int) mContext.getResources().getDimension(R.dimen.rc_dimen_size_44);
            params.topMargin = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_5);
        } else {
            params.width = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_9);
            params.height = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_9);
            params.leftMargin = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_50);
            params.topMargin = (int) context.getResources().getDimension(R.dimen.rc_dimen_size_7);
        }
        view.setLayoutParams(params);
    }
    private OnPortraitItemClick mOnPortraitItemClick;
    public interface OnPortraitItemClick {
        void onPortraitItemClick(View v, UIConversation data);
        boolean onPortraitItemLongClick(View v, UIConversation data);
    }
    public void setOnPortraitItemClick(OnPortraitItemClick onPortraitItemClick) {
        this.mOnPortraitItemClick = onPortraitItemClick;
    }
}

集成DefaultExtensionModule, 实现MyExtensionModule, 重写getEmoticonTabs()方法, 为每个图标设置监听.

@Override
    public List<IEmoticonTab> getEmoticonTabs() {
        List<IEmoticonTab> emoticonTabs =  super.getEmoticonTabs();
        MyEmoticonTab myEmoticonTab =new MyEmoticonTab();
        myEmoticonTab.setOnItemClickListener(new IEmojiItemClickListener() {
            @Override
            public void onEmojiClick(String emoji) {
                EditText editText = MyExtensionModule.this.mEditText;
                if (editText != null) {
                    int start = editText.getSelectionStart();
                    editText.getText().insert(start, emoji);
                }
            }
            @Override
            public void onDeleteClick() {
                EditText editText = MyExtensionModule.this.mEditText;
                if (editText != null) {
                    editText.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL));
                }
            }
        });
        emoticonTabs.add(myEmoticonTab);
        return emoticonTabs;
    }

继承RongExtension, 实现MyRongExtension, 然后获取到editText, 为其设置监听, 代码如下:

public class MyRongExtension extends RongExtension {
    EditText mEditText;
    public MyRongExtension(Context context) {
        super(context);
        tryAddTextChangedAction();
    }
    public MyRongExtension(Context context, AttributeSet attrs) {
        super(context, attrs);
        tryAddTextChangedAction();
    }
    private void tryAddTextChangedAction() {
        mEditText = getInputEditText();
        TextWatcher textWatcher = new TextWatcher() {
            private int start;
            private int count;
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                this.start = start;
                this.count = count;
            }
            @Override
            public void afterTextChanged(Editable s) {
                // 这块的检验规则是纯emoji的, 加其他表情的话直接给他去掉, 或者自己写规则。
//                if (QQEmoji.isQQEmoji(s.subSequence(start, start + count).toString())) {
                    mEditText.removeTextChangedListener(this);
                    String resultStr = QQEmoji.replaceEmojiWithText(s.toString());
                    mEditText.setText(QQEmoji.ensure(resultStr), TextView.BufferType.SPANNABLE);
                    mEditText.setSelection(mEditText.getText().length());
                    mEditText.addTextChangedListener(this);
//                }
            }
        };
        mEditText.addTextChangedListener(textWatcher);
    }
}

这样一来, 就大功告成啦. 添加好了一套属于自己的表情包!

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