1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package com.example.android.supportv7.app; 17 18import android.os.Bundle; 19 20import androidx.appcompat.app.AppCompatActivity; 21import androidx.core.view.WindowCompat; 22 23import com.example.android.supportv7.R; 24 25/** 26 * This demonstrates usage of the Action Bar's hide on content scroll 27 */ 28public class ActionBarHideOnScroll extends AppCompatActivity { 29 30 @Override 31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 34 // Hide on content scroll requires an overlay action bar, so request one 35 supportRequestWindowFeature(WindowCompat.FEATURE_ACTION_BAR_OVERLAY); 36 37 setContentView(R.layout.action_bar_hide_scroll); 38 39 // Enable hide on scroll 40 getSupportActionBar().setHideOnContentScrollEnabled(true); 41 } 42 43} 44