| /* |
| * 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.launcher2; |
| |
| import java.util.Random; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ObjectAnimator; |
| import android.animation.ValueAnimator; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.util.AttributeSet; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.TabHost; |
| import android.widget.TabWidget; |
| import android.widget.TextView; |
| |
| import com.android.launcher.R; |
| import com.android.launcher2.CustomizePagedView.CustomizationType; |
| |
| public class CustomizeTrayTabHost extends TabHost implements LauncherTransitionable { |
| // tags for the customization tabs |
| private static final String WIDGETS_TAG = "widgets"; |
| private static final String APPLICATIONS_TAG = "applications"; |
| private static final String SHORTCUTS_TAG = "shortcuts"; |
| private static final String WALLPAPERS_TAG = "wallpapers"; |
| |
| private boolean mFirstLayout = true; |
| |
| private final LayoutInflater mInflater; |
| private Context mContext; |
| |
| public CustomizeTrayTabHost(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mContext = context; |
| mInflater = LayoutInflater.from(context); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| setup(); |
| |
| final CustomizePagedView customizePagedView = |
| (CustomizePagedView) findViewById(R.id.customization_drawer_tab_contents); |
| |
| // Configure tabs |
| TabContentFactory contentFactory = new TabContentFactory() { |
| public View createTabContent(String tag) { |
| return customizePagedView; |
| } |
| }; |
| |
| TextView tabView; |
| TabWidget tabWidget = (TabWidget) findViewById(com.android.internal.R.id.tabs); |
| |
| tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false); |
| tabView.setText(mContext.getString(R.string.widgets_tab_label)); |
| addTab(newTabSpec(WIDGETS_TAG) |
| .setIndicator(tabView).setContent(contentFactory)); |
| tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false); |
| tabView.setText(mContext.getString(R.string.applications_tab_label)); |
| addTab(newTabSpec(APPLICATIONS_TAG) |
| .setIndicator(tabView).setContent(contentFactory)); |
| tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false); |
| tabView.setText(mContext.getString(R.string.wallpapers_tab_label)); |
| addTab(newTabSpec(WALLPAPERS_TAG) |
| .setIndicator(tabView).setContent(contentFactory)); |
| tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false); |
| tabView.setText(mContext.getString(R.string.shortcuts_tab_label)); |
| addTab(newTabSpec(SHORTCUTS_TAG) |
| .setIndicator(tabView).setContent(contentFactory)); |
| |
| setOnTabChangedListener(new OnTabChangeListener() { |
| public void onTabChanged(String tabId) { |
| final CustomizePagedView.CustomizationType newType = |
| getCustomizeFilterForTabTag(tabId); |
| if (newType != customizePagedView.getCustomizationFilter()) { |
| // animate the changing of the tab content by fading pages in and out |
| final Resources res = getResources(); |
| final int duration = res.getInteger(R.integer.config_tabTransitionTime); |
| final float alpha = customizePagedView.getAlpha(); |
| ValueAnimator alphaAnim = ObjectAnimator.ofFloat(customizePagedView, |
| "alpha", alpha, 0.0f); |
| alphaAnim.setDuration(duration); |
| alphaAnim.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| customizePagedView.setCustomizationFilter(newType); |
| |
| final float alpha = customizePagedView.getAlpha(); |
| ValueAnimator alphaAnim = ObjectAnimator.ofFloat( |
| customizePagedView, "alpha", alpha, 1.0f); |
| alphaAnim.setDuration(duration); |
| alphaAnim.start(); |
| } |
| }); |
| alphaAnim.start(); |
| } |
| } |
| }); |
| |
| // Set the width of the tab bar properly |
| int pageWidth = customizePagedView.getPageContentWidth(); |
| TabWidget customizeTabBar = (TabWidget) findViewById(com.android.internal.R.id.tabs); |
| if (customizeTabBar == null) throw new Resources.NotFoundException(); |
| int tabWidgetPadding = 0; |
| final int childCount = tabWidget.getChildCount(); |
| if (childCount > 0) { |
| tabWidgetPadding += tabWidget.getChildAt(0).getPaddingLeft() * 2; |
| } |
| customizeTabBar.getLayoutParams().width = pageWidth + tabWidgetPadding; |
| } |
| |
| @Override |
| public void onLauncherTransitionStart(Animator animation) { |
| if (animation != null) { |
| setLayerType(LAYER_TYPE_HARDWARE, null); |
| // just a sanity check that we don't build a layer before a call to onLayout |
| if (!mFirstLayout) { |
| // force building the layer at the beginning of the animation, so you don't get a |
| // blip early in the animation |
| buildLayer(); |
| } |
| } |
| } |
| |
| @Override |
| public void onLauncherTransitionEnd(Animator animation) { |
| if (animation != null) { |
| setLayerType(LAYER_TYPE_NONE, null); |
| } |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| mFirstLayout = false; |
| super.onLayout(changed, l, t, r, b); |
| } |
| |
| @Override |
| public int getDescendantFocusability() { |
| if (getVisibility() != View.VISIBLE) { |
| return ViewGroup.FOCUS_BLOCK_DESCENDANTS; |
| } |
| return super.getDescendantFocusability(); |
| } |
| |
| CustomizationType getCustomizeFilterForTabTag(String tag) { |
| if (tag.equals(WIDGETS_TAG)) { |
| return CustomizationType.WidgetCustomization; |
| } else if (tag.equals(APPLICATIONS_TAG)) { |
| return CustomizationType.ApplicationCustomization; |
| } else if (tag.equals(WALLPAPERS_TAG)) { |
| return CustomizePagedView.CustomizationType.WallpaperCustomization; |
| } else if (tag.equals(SHORTCUTS_TAG)) { |
| return CustomizePagedView.CustomizationType.ShortcutCustomization; |
| } |
| return CustomizationType.WidgetCustomization; |
| } |
| } |