1<?xml version="1.0" encoding="utf-8"?> 2<!-- 3 ~ Copyright (C) 2019 The Android Open Source Project 4 ~ 5 ~ Licensed under the Apache License, Version 2.0 (the "License"); 6 ~ you may not use this file except in compliance with the License. 7 ~ You may obtain a copy of the License at 8 ~ 9 ~ http://www.apache.org/licenses/LICENSE-2.0 10 ~ 11 ~ Unless required by applicable law or agreed to in writing, software 12 ~ distributed under the License is distributed on an "AS IS" BASIS, 13 ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ~ See the License for the specific language governing permissions and 15 ~ limitations under the License 16 --> 17 18<FrameLayout 19 xmlns:android="http://schemas.android.com/apk/res/android" 20 android:layout_width="match_parent" 21 android:layout_height="wrap_content" 22 android:orientation="vertical"> 23 24 <LinearLayout 25 android:id="@+id/nav_bar" 26 android:layout_width="match_parent" 27 android:layout_height="wrap_content" 28 android:layout_weight="1" 29 android:gravity="center"> 30 31 <ImageButton 32 android:layout_width="0dp" 33 android:layout_height="match_parent" 34 android:layout_weight="1" 35 android:id="@+id/nav_back" 36 android:src="@drawable/ic_arrow_back" 37 android:gravity="center" 38 /> 39 40 <ImageButton 41 android:layout_width="0dp" 42 android:layout_height="match_parent" 43 android:layout_weight="1" 44 android:id="@+id/nav_home" 45 android:src="@drawable/ic_home" 46 android:gravity="center" 47 /> 48 49 <ImageButton 50 android:layout_width="0dp" 51 android:layout_height="match_parent" 52 android:layout_weight="1" 53 android:id="@+id/nav_notification" 54 android:src="@drawable/ic_notification" 55 android:gravity="center" 56 /> 57 </LinearLayout> 58</FrameLayout> 59