Block/Unblock User

// In MessagesActivity.java
private void updateUserBlockStatus(User user) {
    boolean blocked = user.isBlockedByMe();
    binding.messageComposer.setVisibility(blocked ? View.GONE : View.VISIBLE);
    binding.unblockLayout.setVisibility(blocked ? View.VISIBLE : View.GONE);
}

<!-- In activity_messages.xml -->
<com.cometchat.ui_kits.CometChatMessageComposer
    android:id="@+id/messageComposer"
    ... />
<View
    android:id="@+id/unblockLayout"
    android:visibility="gone"
    ...>
    <Button
        android:id="@+id/unblockBtn"
        android:text="Unblock"
        ... />
</View>

// In MessagesActivity.java
binding.unblockBtn.setOnClickListener(v -> viewModel.unblockUser());

// In MessagesViewModel.java
public void unblockUser() {
    CometChatUIKit.unblockUsers(Collections.singletonList(currentUser.getUid()), new CometChat.CallbackListener<List<String>>() {
        @Override
        public void onSuccess(List<String> uids) {
            unblockButtonState.postValue(false);
        }
        @Override
        public void onError(CometChatException e) {
            // Handle error
        }
    });
}

// In UserDetailActivity.java
binding.blockMenuItem.setOnClickListener(v -> {
    CometChatUIKit.blockUsers(Collections.singletonList(user.getUid()), new CometChat.CallbackListener<List<String>>() {
        @Override
        public void onSuccess(List<String> uids) {
            viewModel.refreshUser();
        }
        @Override
        public void onError(CometChatException e) {
            // Handle error
        }
    });
});