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Version: v4

Groups

Overview​

CometChatGroups functions as a standalone component designed to create a screen displaying a list of groups, with the added functionality of enabling users to search for specific groups. Acting as a container component, CometChatGroups encapsulates and formats the CometChatListBase and CometChatGroupList components without introducing any additional behavior of its own.

Image

The Groups component is composed of the following BaseComponents:

ComponentsDescription
CometChatListBaseCometChatListBase is a container component having a title, search box, customizable background, and a List View
CometChatListItemCometChatListItem is a component that renders data obtained from a Group object on a Tile having a title, subtitle, leading and trailing view

Usage​

Integration​

The following code snippet illustrates how you can can launch CometChatGroups.

<com.cometchat.chatuikit.groups.CometChatGroups
    android:id="@+id/groups"
    android:layout_height="match_parent"
    android:layout_width="match_parent" />

Actions​

Actions dictate how a component functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the component to fit your specific needs.

1. OnSelection​

The OnSelection event is activated when you select the done icon in the Menubar while in selection mode. This returns a list of all the groups that you have selected.

This action does not come with any predefined behavior. However, you have the flexibility to override this event and tailor it to suit your needs using the following code snippet.

cometchatGroups.setOnSelection(new CometChatGroups.OnSelection() {
    @Override
    public void onSelection(List<Group> list) {
        // Your custom Action
    }
});
2. ItemClickListener​

The OnItemClickListener event is activated when you click on the GroupList item. This action does not come with any predefined behavior.

However, you have the flexibility to override this event and tailor it to suit your needs using the following code snippet.

cometchatGroups.setItemClickListener(new OnItemClickListener<Group>() {
    @Override
    public void OnItemClick(Group group, int i) {
        // Your custom Action
    }
});
3. BackPressListener​

The OnBackPressListener function is built to respond when you tap the back button in the Toolbar of the activity.

By default, this action has a predefined behavior: it simply closes the current activity. However, the flexibility of CometChat UI Kit allows you to override this standard behavior according to your application's specific requirements. You can define a custom action that will be performed instead when the back button is pressed.

cometchatGroups.addOnBackPressListener(new CometChatListBase.OnBackPress() {
    @Override
    public void onBack() {
        // Your custom Action
    }
});
4. onError​

This action doesn't change the behavior of the component but rather listens for any errors that occur in the Group component.

cometchatGroups.setOnError(new OnError() {
    @Override
    public void onError(Context context, CometChatException e) {
        // Your custom Action
    }
});

Filters​

Filters allow you to customize the data displayed in a list within a Component. You can filter the list based on your specific criteria, allowing for a more customized. Filters can be applied using RequestBuilders of Chat SDK.

1. GroupsRequestBuilder​

The GroupsRequestBuilder enables you to filter and customize the group list based on available parameters in GroupsRequestBuilder. This feature allows you to create more specific and targeted queries when fetching groups. The following are the parameters available in GroupsRequestBuilder

PropertyDescriptionCode
LimitConfigure the maximum number of groups to fetch in a single request, optimizing pagination for smoother navigation..setLimit(Int)
Search KeywordEmployed to retrieve groups that match the provided string, facilitating precise searches..setSearchKeyWord(String)
Joined OnlyExclusively fetches joined groups..joinedOnly(boolean)
TagsUtilized to fetch groups containing the specified tags..setTags(List<String>)
With TagsUtilized to retrieve groups with specific tags..withTags(boolean)

Example

In the example below, we are applying a filter to the Group List based on only joined groups.

GroupsRequest.GroupsRequestBuilder builder = new GroupsRequest.GroupsRequestBuilder().setLimit(10).joinedOnly(true);
cometchatGroups.setGroupsRequestBuilder(builder);
2. SearchRequestBuilder​

The SearchRequestBuilder uses GroupsRequestBuilder enables you to filter and customize the search list based on available parameters in GroupsRequestBuilder. This feature allows you to keep uniformity between the displayed Groups List and searched Group List.

Example

GroupsRequest.GroupsRequestBuilder builder = new GroupsRequest.GroupsRequestBuilder().setLimit(10).setSearchKeyWord("**");
cometchatGroups.setSearchRequestBuilder(builder);

Events​

Events are emitted by a Component. By using event you can extend existing functionality. Being global events, they can be applied in Multiple Locations and are capable of being Added or Removed.

The list of events emitted by the Groups component is as follows.

EventsDescription
ccGroupCreated()This will get triggered when the logged in user creates a group
ccGroupDeleted()This will get triggered when the logged in user deletes a group
ccGroupLeft()This will get triggered when the logged in user leaves a group
ccGroupMemberScopeChanged()This will get triggered when the logged in user changes the scope of another group member
ccGroupMemberBanned()This will get triggered when the logged in user bans a group member from the group
ccGroupMemberKicked()This will get triggered when the logged in user kicks another group member from the group
ccGroupMemberUnbanned()This will get triggered when the logged in user unbans a user banned from the group
ccGroupMemberJoined()This will get triggered when the logged in user joins a group
ccGroupMemberAdded()This will get triggered when the logged in user add new members to the group
ccOwnershipChangedThis will get triggered when the logged in user transfer the ownership of their group to some other member
1. Add CometChatGroupEvents Listener's​
CometChatGroupEvents.addGroupListener("LISTENER_TAG", new CometChatGroupEvents() {
    @Override
    public void ccGroupCreated(Group group) {
        super.ccGroupCreated(group);
    }

    @Override
    public void ccGroupDeleted(Group group) {
        super.ccGroupDeleted(group);
    }

    @Override
    public void ccGroupLeft(Action actionMessage, User leftUser, Group leftGroup) {
        super.ccGroupLeft(actionMessage, leftUser, leftGroup);
    }

    @Override
    public void ccGroupMemberJoined(User joinedUser, Group joinedGroup) {
        super.ccGroupMemberJoined(joinedUser, joinedGroup);
    }

    @Override
    public void ccGroupMemberAdded(List<Action> actionMessages, List<User> usersAdded, Group userAddedIn, User addedBy) {
        super.ccGroupMemberAdded(actionMessages, usersAdded, userAddedIn, addedBy);
    }

    @Override
    public void ccGroupMemberKicked(Action actionMessage, User kickedUser, User kickedBy, Group kickedFrom) {
        super.ccGroupMemberKicked(actionMessage, kickedUser, kickedBy, kickedFrom);
    }

    @Override
    public void ccGroupMemberBanned(Action actionMessage, User bannedUser, User bannedBy, Group bannedFrom) {
        super.ccGroupMemberBanned(actionMessage, bannedUser, bannedBy, bannedFrom);
    }

    @Override
    public void ccGroupMemberUnBanned(Action actionMessage, User unbannedUser, User unBannedBy, Group unBannedFrom) {
        super.ccGroupMemberUnBanned(actionMessage, unbannedUser, unBannedBy, unBannedFrom);
    }

    @Override
    public void ccGroupMemberScopeChanged(Action actionMessage, User updatedUser, String scopeChangedTo, String scopeChangedFrom, Group group) {
        super.ccGroupMemberScopeChanged(actionMessage, updatedUser, scopeChangedTo, scopeChangedFrom, group);
    }

    @Override
    public void ccOwnershipChanged(Group group, GroupMember newOwner) {
        super.ccOwnershipChanged(group, newOwner);
    }
});
2. Removing CometChatGroupEvents Listener's​
CometChatGroupEvents.removeListeners();

Customization​

To fit your app's design requirements, you can customize the appearance of the groups component. We provide exposed methods that allow you to modify the experience and behavior according to your specific needs.

Style​

Using Style you can customize the look and feel of the component in your app, These parameters typically control elements such as the color, size, shape, and fonts used within the component.

1. Groups Style​

Enhance your Groups Component by setting the GroupsStyle to customize its appearance.

GroupsStyle groupsStyle = new GroupsStyle();
groupsStyle.setBackground(Color.BLACK);
groupsStyle.setCornerRadius(25f);
cometchatGroups.setStyle(groupsStyle);

List of properties exposed by GroupsStyle

PropertyDescriptionCode
BackgroundUsed to set the background colorsetBackground(@ColorInt int)
BorderWidthUsed to set border widthsetBorderWidth(int)
BorderColorUsed to set border colorsetBorderColor(@ColorInt int)
CornerRadiusUsed to set border radiussetCornerRadius(float)
BackgroundUsed to set background DrawablesetBackground(Drawable)
TitleAppearanceUsed to customise the appearance of the title in the app barsetTitleAppearance(@StyleRes int)
BackIconTintUsed to set the color of the back icon in the app barsetBackIconTint(@ColorInt int)
SearchBackgroundUsed to set the background color of the search boxsetSearchBackground(@ColorInt int)
SearchBorderRadiusUsed to set the border radius of the search boxsetSearchBorderRadius(int)
SearchIconTintUsed to set the color of the search icon in the search boxsetSearchIconTint(@ColorInt int)
SearchBorderWidthUsed to set the border width of the search boxsetSearchBorderWidth(int)
SearchTextAppearanceUsed to set the style of the text in the search boxsetSearchTextAppearance(@StyleRes int)
LoadingIconTintUsed to set the color of the icon shown while the list of group members is being fetchedsetLoadingIconTint(@ColorInt int)
EmptyTextAppearanceUsed to set the style of the response text shown when fetchig the list of group members has returned an empty listsetEmptyTextAppearance(@StyleRes int)
ErrorTextAppearanceUsed to set the style of the response text shown in case some error occurs while fetching the list of group memberssetErrorTextAppearance(@StyleRes int)
SeparatorColorUsed to set the color of the divider separating the group member itemssetSeparatorColor(@ColorInt int)
2. Avatar Style​

To apply customized styles to the Avatar component in the Groups Component, you can use the following code snippet. For further insights on Avatar Styles refer

AvatarStyle avatarStyle = new AvatarStyle();
avatarStyle.setBorderWidth(10);
avatarStyle.setBorderColor(Color.BLACK);
cometchatGroups.setAvatarStyle(avatarStyle);
3. StatusIndicator Style​

To apply customized styles to the Status Indicator component in the Groups Component, You can use the following code snippet. For further insights on Status Indicator Styles refer

StatusIndicatorStyle statusIndicatorStyle = new StatusIndicatorStyle();
statusIndicatorStyle.setCornerRadius(3.5f);
statusIndicatorStyle.setBorderColor(Color.GREEN);
cometchatGroups.setStatusIndicatorStyle(statusIndicatorStyle);
4. ListItem Style​

To apply customized styles to the List Item component in the Groups Component, you can use the following code snippet. For further insights on List Item Styles refer

ListItemStyle listItemStyle = new ListItemStyle();
listItemStyle.setBackground(R.color.purple_200);
listItemStyle.setBorderWidth(2);
listItemStyle.setBorderColor(R.color.purple_700);
listItemStyle.setCornerRadius(20);
cometchatGroups.setListItemStyle(listItemStyle);

Functionality​

These are a set of small functional customizations that allow you to fine-tune the overall experience of the component. With these, you can change text, set custom icons, and toggle the visibility of UI elements.

CometChatGroups cometChatGroups = findViewById(R.id.groups);
cometchatGroups.setTitle("Contacts");
cometchatGroups.showBackButton(true);
cometchatGroups.backIconTint(getResources().getColor(R.color.black));
Image

Below is a list of customizations along with corresponding code snippets

PropertyDescriptionCode
Set TitleUsed to set title in the app bar.setTitle("Your custom title")
Set SearchPlaceholderTextUsed to set search placeholder text.setSearchPlaceholderText("Your custom Text")
BackIconUsed to set back button icon.backIcon(@DrawableRes int res)
Show BackButtonUsed to toggle visibility for back button.showBackButton(boolean)
Set SearchBoxIconUsed to set search Icon in the search field.setSearchBoxIcon(@DrawableRes int res)
Hide SearchUsed to toggle visibility for search box.hideSearch(boolean)
Hide ErrorUsed to hide error on fetching groups.hideError(boolean)
Hide SeparatorUsed to hide the divider separating the group items.hideSeparator(boolean)
Set SubmitIconUsed to override the default selection complete icon.setSubmitIcon(@DrawableRes int res)
EmptyState TextUsed to set a custom text response when fetching the groups has returned an empty list.emptyStateText("Your Text")
ErrorState TextUsed to set a custom text response when some error occurs on fetching the list of groups.errorStateText("Your Text")
Private Group IconUsed to set the private group Icon.setPrivateGroupIcon(@DrawableRes int res)

Advanced​

For advanced-level customization, you can set custom views to the component. This lets you tailor each aspect of the component to fit your exact needs and application aesthetics. You can create and define your views, layouts, and UI elements and then incorporate those into the component.

SetListItemView​

With this function, you can assign a custom ListItem to the Conversations Component.

cometchatGroups.setListItemView(new GroupsViewHolderListener() {
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        return null;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {

    }
});

Example

Image

You can indeed create a custom layout file named item_list.xml for more complex or unique list items.

Once this layout file is made, you would inflate it inside the createView() method of the GroupsViewHolderListener. The inflation process prepares the layout for use in your application:

Following this, you would use the bindView() method to initialize and assign values to your individual views. This could include setting text on TextViews, images on ImageViews, and so on based on the properties of the Group object:

item_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:elevation="10dp"
        app:cardBackgroundColor="@color/purple_500"
        app:cardCornerRadius="10dp">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <com.cometchat.chatuikit.shared.views.CometChatAvatar.CometChatAvatar
                android:id="@+id/item_avatar"
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:layout_centerVertical="true"
                android:layout_margin="10dp"
                android:padding="10dp" />

            <TextView
                android:id="@+id/txt_item_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_toRightOf="@+id/item_avatar"
                android:text="name"
                android:textSize="17sp" />

            <TextView
                android:id="@+id/txt_item_date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_centerVertical="true"
                android:layout_margin="10dp"
                android:text="date"
                android:textSize="12sp" />
        </RelativeLayout>
    </androidx.cardview.widget.CardView>
</RelativeLayout>
YourActivity.java
cometchatGroups.setListItemView(new GroupsViewHolderListener() {
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        View view = getLayoutInflater().inflate(R.layout.item_list, null);
        return view;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {
        CometChatAvatar avatarView = view.findViewById(R.id.item_avatar);
        avatarView.setRadius(100);
        TextView nameView = view.findViewById(R.id.txt_item_name);
        nameView.setText(group.getName());
        avatarView.setImage(group.getIcon(),group.getName());
    }
});

SetSubTitleView​

You can customize the subtitle view for each conversation item to meet your requirements

GroupsViewHolderListener groupsViewHolderListener = new GroupsViewHolderListener(){
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        return null;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {

    }
};
cometchatGroups.setSubtitleView(groupsViewHolderListener);

Example

Image

You can indeed create a custom layout file named subtitle_layout.xml for more complex or unique list items.

Once this layout file is made, you would inflate it inside the createView() method of the GroupsViewHolderListener. The inflation process prepares the layout for use in your application:

Following this, you would use the bindView() method to initialize and assign values to your individual views. This could include setting text on TextViews, images on ImageViews, and so on based on the properties of the Group object:

subtitle_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/txt_subtitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Subtitle" />

    <ImageView
        android:id="@+id/img_conversation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:src="@drawable/ic_message_grey" />

    <ImageView
        android:id="@+id/img_audio_call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:layout_toEndOf="@+id/img_conversation"
        android:src="@drawable/ic_call" />

    <ImageView
        android:id="@+id/img_video_call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:layout_toEndOf="@+id/img_audio_call"
        android:src="@drawable/ic_video" />

</RelativeLayout>
YourActivity.java
GroupsViewHolderListener groupsViewHolderListener = new GroupsViewHolderListener(){
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        View view = getLayoutInflater().inflate(R.layout.subtitle_layout, null);
        return view;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {
        TextView txtSubtitle = view.findViewById(R.id.txt_subtitle);
        ImageView imgConversation = view.findViewById(R.id.img_conversation);
        ImageView imgAudioCall = view.findViewById(R.id.img_audio_call);;
        ImageView imgVideCall = view.findViewById(R.id.img_video_call);;
        txtSubtitle.setText(group.getName());
        imgConversation.setOnClickListener(v -> {
            Toast.makeText(context, "Conversation Clicked", Toast.LENGTH_SHORT).show();
        });
        imgAudioCall.setOnClickListener(v -> {
            Toast.makeText(context, "Audio Call Clicked", Toast.LENGTH_SHORT).show();
        });
        imgVideCall.setOnClickListener(v -> {
            Toast.makeText(context, "Video Call Clicked", Toast.LENGTH_SHORT).show();
        });
    }
};
cometchatGroups.setSubtitleView(groupsViewHolderListener);

SetTailView​

Used to generate a custom trailing view for the GroupList item. You can add a Tail view using the following method.

cometchatGroups.setTailView(new GroupsViewHolderListener() {
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        return null;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {

    }
});

Example

Image

You can indeed create a custom layout file named tail_view_layout.xml for more complex or unique list items.

Once this layout file is made, you would inflate it inside the createView() method of the GroupsViewHolderListener. The inflation process prepares the layout for use in your application:

Following this, you would use the bindView() method to initialize and assign values to your individual views. This could include setting text on TextViews, images on ImageViews, and so on based on the properties of the Group object:

tail_view_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/txt_subtitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Subtitle" />

    <ImageView
        android:id="@+id/img_conversation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:src="@drawable/ic_message_grey" />

    <ImageView
        android:id="@+id/img_audio_call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:layout_toRightOf="@+id/img_conversation"
        android:src="@drawable/ic_call" />

    <ImageView
        android:id="@+id/img_video_call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt_subtitle"
        android:layout_margin="2dp"
        android:layout_toRightOf="@+id/img_audio_call"
        android:src="@drawable/ic_video" />

</RelativeLayout>
YourActivity.java
cometchatGroups.setTailView(new GroupsViewHolderListener() {
    @Override
    public View createView(Context context, CometChatListItem cometChatListItem) {
        View view = getLayoutInflater().inflate(R.layout.subtitle_layout, null);
        return view;
    }

    @Override
    public void bindView(Context context, View view, Group group, RecyclerView.ViewHolder viewHolder, List<Group> list, int i) {
        TextView txtSubtitle = view.findViewById(R.id.txt_subtitle);
        ImageView imgConversation = view.findViewById(R.id.img_conversation);
        ImageView imgAudioCall = view.findViewById(R.id.img_audio_call);;
        ImageView imgVideCall = view.findViewById(R.id.img_video_call);;
        txtSubtitle.setText(group.getName());
        imgConversation.setOnClickListener(v -> {
            Toast.makeText(context, "Conversation Clicked", Toast.LENGTH_SHORT).show();
        });
        imgAudioCall.setOnClickListener(v -> {
            Toast.makeText(context, "Audio Call Clicked", Toast.LENGTH_SHORT).show();
        });
        imgVideCall.setOnClickListener(v -> {
            Toast.makeText(context, "Video Call Clicked", Toast.LENGTH_SHORT).show();
        });
    }
});

SetMenu​

You can set the Custom Menu view to add more options to the Groups component.

cometchatGroups.setMenu(View v);

Example

Image

You need to create a view_menu.xml as a custom view file. Which we will inflate and pass to .setMenu().

view_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/img_refresh"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:src="@drawable/ic_refresh_black" />

</LinearLayout>

You inflate the view and pass it to setMenu. You can get the child view reference and can handle click actions.

YourActivity.java
View view = getLayoutInflater().inflate(R.layout.view_menu, null);
ImageView imgRefresh = view.findViewById(R.id.img_refresh);
imgRefresh.setOnClickListener(v -> {
    Toast.makeText(requireContext(), "Clicked on Refresh", Toast.LENGTH_SHORT).show();
});
cometchatGroups.setMenu(view);

SetLoadingStateView​

You can set a custom loader view using setLoadingStateView to match the loading view of your app.

cometchatGroups.setLoadingStateView();

Example

Image

We have added a ContentLoadingProgressBar to loading_view_layout.xml. You can choose any view you prefer. This view should be inflated and passed to the setLoadingStateView() method.

loading_view_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center_vertical">

    <androidx.core.widget.ContentLoadingProgressBar
        style="?android:attr/progressBarStyleLarge"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal" />

</FrameLayout>
YourActivity.java
cometchatGroups.setLoadingStateView(R.layout.loading_view_layout);

SetEmptyStateView​

You can set a custom EmptyStateView using setEmptyStateView to match the empty view of your app.

cometchatGroups.setEmptyStateView();

Examples

Image

We have added an error view to empty_view_layout.xml. You can choose any view you prefer. This view should be inflated and passed to the setEmptyStateView() method.

empty_view_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center_vertical">

    <TextView
        android:id="@+id/txt_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="No Friends available"
        android:textColor="@color/cometchat_grey"
        android:textSize="20sp"
        android:textStyle="bold" />

</RelativeLayout>
YourActivity.java
cometchatGroups.setEmptyStateView(R.layout.empty_view_layout);

SetErrorStateView​

You can set a custom ErrorStateView using setErrorStateView to match the error view of your app.

cometchatGroups.setErrorStateView();

Example

Image

We have added an error view to error_state_view_layout.xml. You can choose any view you prefer. This view should be inflated and passed to the setErrorStateView() method.

error_state_view_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/img_error"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerInParent="true"
        android:src="@drawable/ic_error" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/img_error"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Something Went Wrong"
        android:textSize="30sp" />

</RelativeLayout>
YourActivity.java
cometchatGroups.setErrorStateView(R.layout.error_state_view_layout);