/* * Copyright (C) 2011 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.layoutlib.bridge.bars; import com.android.layoutlib.bridge.android.BridgeContext; import com.android.resources.Density; import android.content.Context; import android.content.pm.ApplicationInfo; import android.util.AttributeSet; import android.util.DisplayMetrics; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; public class NavigationBar extends CustomBar { /** Navigation bar background color attribute name. */ private static final String ATTR_COLOR = "navigationBarColor"; /** Attribute for translucency property. */ public static final String ATTR_TRANSLUCENT = "windowTranslucentNavigation"; // These correspond to @dimen/navigation_side_padding in the system ui code. private static final int PADDING_WIDTH_DEFAULT = 36; private static final int PADDING_WIDTH_SW360 = 40; private static final int PADDING_WIDTH_SW400 = 50; // These corresponds to @dimen/navigation_key_width in the system ui code. private static final int WIDTH_DEFAULT = 36; private static final int WIDTH_SW360 = 40; private static final int WIDTH_SW600 = 48; private static final String LAYOUT_XML = "/bars/navigation_bar.xml"; private static final String LAYOUT_600DP_XML = "/bars/navigation_bar600dp.xml"; /** * Constructor to be used when creating the {@link NavigationBar} as a regular control. * This is currently used by the theme editor. */ @SuppressWarnings("unused") public NavigationBar(Context context, AttributeSet attrs) { this((BridgeContext) context, Density.getEnum(((BridgeContext) context).getMetrics().densityDpi), LinearLayout.HORIZONTAL, // In this mode, it doesn't need to be render vertically ((BridgeContext) context).getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL, (context.getApplicationInfo().flags & ApplicationInfo.FLAG_SUPPORTS_RTL) != 0, 0); } public NavigationBar(BridgeContext context, Density density, int orientation, boolean isRtl, boolean rtlEnabled, int simulatedPlatformVersion) { super(context, orientation, getShortestWidth(context)>= 600 ? LAYOUT_600DP_XML : LAYOUT_XML, "navigation_bar.xml", simulatedPlatformVersion); int color = getBarColor(ATTR_COLOR, ATTR_TRANSLUCENT); setBackgroundColor(color == 0 ? 0xFF000000 : color); // Cannot access the inside items through id because no R.id values have been // created for them. // We do know the order though. // 0 is a spacer. int back = 1; int recent = 5; if (orientation == LinearLayout.VERTICAL || (isRtl && !rtlEnabled)) { // If RTL is enabled, then layoutlib mirrors the layout for us. back = 5; recent = 1; } //noinspection SpellCheckingInspection loadIcon(back, "ic_sysbar_back.png", density, isRtl); //noinspection SpellCheckingInspection loadIcon(3, "ic_sysbar_home.png", density, isRtl); //noinspection SpellCheckingInspection loadIcon(recent, "ic_sysbar_recent.png", density, isRtl); setupNavBar(context, orientation); } private void setupNavBar(BridgeContext context, int orientation) { float sw = getShortestWidth(context); View leftPadding = getChildAt(0); View rightPadding = getChildAt(6); setSize(context, leftPadding, orientation, getSidePadding(sw)); setSize(context, rightPadding, orientation, getSidePadding(sw)); int navButtonWidth = getWidth(sw); for (int i = 1; i < 6; i += 2) { View navButton = getChildAt(i); setSize(context, navButton, orientation, navButtonWidth); } if (sw >= 600) { setSize(context, getChildAt(2), orientation, 128); setSize(context, getChildAt(4), orientation, 128); } } private static void setSize(BridgeContext context, View view, int orientation, int size) { size *= context.getMetrics().density; LayoutParams layoutParams = (LayoutParams) view.getLayoutParams(); if (orientation == HORIZONTAL) { layoutParams.width = size; } else { layoutParams.height = size; } view.setLayoutParams(layoutParams); } private static int getSidePadding(float sw) { if (sw >= 400) { return PADDING_WIDTH_SW400; } if (sw >= 360) { return PADDING_WIDTH_SW360; } return PADDING_WIDTH_DEFAULT; } private static int getWidth(float sw) { if (sw >= 600) { return WIDTH_SW600; } if (sw >= 360) { return WIDTH_SW360; } return WIDTH_DEFAULT; } private static float getShortestWidth(BridgeContext context) { DisplayMetrics metrics = context.getMetrics(); float sw = metrics.widthPixels < metrics.heightPixels ? metrics.widthPixels : metrics.heightPixels; sw /= metrics.density; return sw; } @Override protected TextView getStyleableTextView() { return null; } }