src/com/android/launcher3/views/SearchSectionHeaderView.java

/*
 * Copyright (C) 2020 The Android Open Source Project
 *
 * 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
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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.android.launcher3.views;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.TextView;

import androidx.annotation.Nullable;

import com.android.launcher3.allapps.AllAppsGridAdapter;
import com.android.launcher3.allapps.search.AllAppsSearchBarController;

/**
 * Header text view that shows a title for a given section in All apps search
 */
public class SearchSectionHeaderView extends TextView implements
        AllAppsSearchBarController.PayloadResultHandler<String> {
    public SearchSectionHeaderView(Context context) {
        super(context);
    }

    public SearchSectionHeaderView(Context context,
            @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public SearchSectionHeaderView(Context context, @Nullable AttributeSet attrs, int styleAttr) {
        super(context, attrs, styleAttr);
    }

    @Override
    public void applyAdapterInfo(AllAppsGridAdapter.AdapterItemWithPayload<String> adapterItem) {
        String title = adapterItem.getPayload();
        if (title == null || !title.isEmpty()) {
            setText(title);
            setVisibility(VISIBLE);
        } else {
            setVisibility(INVISIBLE);
        }
    }
}