| /* |
| * 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; |
| } |
| } |