/* * Copyright (C) 2008 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 android.content.pm; import android.graphics.drawable.Drawable; import android.os.Parcel; import android.util.Printer; /** * Base class containing information common to all application components * ({@link ActivityInfo}, {@link ServiceInfo}). This class is not intended * to be used by itself; it is simply here to share common definitions * between all application components. As such, it does not itself * implement Parcelable, but does provide convenience methods to assist * in the implementation of Parcelable in subclasses. */ public class ComponentInfo extends PackageItemInfo { /** * Global information about the application/package this component is a * part of. */ public ApplicationInfo applicationInfo; /** * The name of the process this component should run in. * From the "android:process" attribute or, if not set, the same * as <var>applicationInfo.processName</var>. */ public String processName; /** * A string resource identifier (in the package's resources) containing * a user-readable description of the component. From the "description" * attribute or, if not set, 0. */ public int descriptionRes; /** * Indicates whether or not this component may be instantiated. Note that this value can be * overriden by the one in its parent {@link ApplicationInfo}. */ public boolean enabled = true; /** * Set to true if this component is available for use by other applications. * Comes from {@link android.R.attr#exported android:exported} of the * <activity>, <receiver>, <service>, or * <provider> tag. */ public boolean exported = false; public ComponentInfo() { } public ComponentInfo(ComponentInfo orig) { super(orig); applicationInfo = orig.applicationInfo; processName = orig.processName; descriptionRes = orig.descriptionRes; enabled = orig.enabled; exported = orig.exported; } @Override public CharSequence loadLabel(PackageManager pm) { if (nonLocalizedLabel != null) { return nonLocalizedLabel; } ApplicationInfo ai = applicationInfo; CharSequence label; if (labelRes != 0) { label = pm.getText(packageName, labelRes, ai); if (label != null) { return label; } } if (ai.nonLocalizedLabel != null) { return ai.nonLocalizedLabel; } if (ai.labelRes != 0) { label = pm.getText(packageName, ai.labelRes, ai); if (label != null) { return label; } } return name; } /** * Return whether this component and its enclosing application are enabled. */ public boolean isEnabled() { return enabled && applicationInfo.enabled; } /** * Return the icon resource identifier to use for this component. If * the component defines an icon, that is used; else, the application * icon is used. * * @return The icon associated with this component. */ public final int getIconResource() { return icon != 0 ? icon : applicationInfo.icon; } /** * Return the logo resource identifier to use for this component. If * the component defines a logo, that is used; else, the application * logo is used. * * @return The logo associated with this component. */ public final int getLogoResource() { return logo != 0 ? logo : applicationInfo.logo; } /** * Return the banner resource identifier to use for this component. If the * component defines a banner, that is used; else, the application banner is * used. * * @return The banner associated with this component. */ public final int getBannerResource() { return banner != 0 ? banner : applicationInfo.banner; } protected void dumpFront(Printer pw, String prefix) { super.dumpFront(pw, prefix); pw.println(prefix + "enabled=" + enabled + " exported=" + exported + " processName=" + processName); if (descriptionRes != 0) { pw.println(prefix + "description=" + descriptionRes); } } protected void dumpBack(Printer pw, String prefix) { if (applicationInfo != null) { pw.println(prefix + "ApplicationInfo:"); applicationInfo.dump(pw, prefix + " "); } else { pw.println(prefix + "ApplicationInfo: null"); } super.dumpBack(pw, prefix); } public void writeToParcel(Parcel dest, int parcelableFlags) { super.writeToParcel(dest, parcelableFlags); applicationInfo.writeToParcel(dest, parcelableFlags); dest.writeString(processName); dest.writeInt(descriptionRes); dest.writeInt(enabled ? 1 : 0); dest.writeInt(exported ? 1 : 0); } protected ComponentInfo(Parcel source) { super(source); applicationInfo = ApplicationInfo.CREATOR.createFromParcel(source); processName = source.readString(); descriptionRes = source.readInt(); enabled = (source.readInt() != 0); exported = (source.readInt() != 0); } /** * @hide */ @Override public Drawable loadDefaultIcon(PackageManager pm) { return applicationInfo.loadIcon(pm); } /** * @hide */ @Override protected Drawable loadDefaultBanner(PackageManager pm) { return applicationInfo.loadBanner(pm); } /** * @hide */ @Override protected Drawable loadDefaultLogo(PackageManager pm) { return applicationInfo.loadLogo(pm); } /** * @hide */ @Override protected ApplicationInfo getApplicationInfo() { return applicationInfo; } }