1 /* 2 * Copyright (C) 2022 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 */ 16 17 package com.android.launcher3.taskbar.navbutton 18 19 import android.content.res.Resources 20 import android.view.Gravity 21 import android.view.ViewGroup 22 import android.widget.FrameLayout 23 import android.widget.LinearLayout 24 import com.android.launcher3.DeviceProfile 25 import com.android.launcher3.R 26 27 /** Layoutter for showing 3 button navigation on large screen */ 28 class TaskbarNavLayoutter( 29 resources: Resources, 30 navBarContainer: LinearLayout, 31 endContextualContainer: ViewGroup, 32 startContextualContainer: ViewGroup 33 ) : 34 AbstractNavButtonLayoutter( 35 resources, 36 navBarContainer, 37 endContextualContainer, 38 startContextualContainer 39 ) { 40 layoutButtonsnull41 override fun layoutButtons(dp: DeviceProfile, isContextualButtonShowing: Boolean) { 42 // Add spacing after the end of the last nav button 43 val navButtonParams = navButtonContainer.layoutParams as FrameLayout.LayoutParams 44 var navMarginEnd = resources.getDimension(dp.inv.inlineNavButtonsEndSpacing).toInt() 45 val contextualWidth = endContextualContainer.width 46 // If contextual buttons are showing, we check if the end margin is enough for the 47 // contextual button to be showing - if not, move the nav buttons over a smidge 48 if (isContextualButtonShowing && navMarginEnd < contextualWidth) { 49 // Additional spacing, eat up half of space between last icon and nav button 50 navMarginEnd += resources.getDimensionPixelSize(R.dimen.taskbar_hotseat_nav_spacing) / 2 51 } 52 53 navButtonParams.apply { 54 gravity = Gravity.END 55 width = FrameLayout.LayoutParams.WRAP_CONTENT 56 height = ViewGroup.LayoutParams.MATCH_PARENT 57 marginEnd = navMarginEnd 58 } 59 navButtonContainer.orientation = LinearLayout.HORIZONTAL 60 navButtonContainer.layoutParams = navButtonParams 61 62 // Add the spaces in between the nav buttons 63 val spaceInBetween = resources.getDimensionPixelSize(R.dimen.taskbar_button_space_inbetween) 64 for (i in 0 until navButtonContainer.childCount) { 65 val navButton = navButtonContainer.getChildAt(i) 66 val buttonLayoutParams = navButton.layoutParams as LinearLayout.LayoutParams 67 buttonLayoutParams.weight = 0f 68 when (i) { 69 0 -> { 70 buttonLayoutParams.marginEnd = spaceInBetween / 2 71 } 72 navButtonContainer.childCount - 1 -> { 73 buttonLayoutParams.marginStart = spaceInBetween / 2 74 } 75 else -> { 76 buttonLayoutParams.marginStart = spaceInBetween / 2 77 buttonLayoutParams.marginEnd = spaceInBetween / 2 78 } 79 } 80 } 81 } 82 } 83