Java tutorial
/* * 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.annotation.StringRes; import android.annotation.SystemApi; import android.os.Parcel; import android.os.Parcelable; import android.text.TextUtils; /** * Information you can retrieve about a particular security permission * group known to the system. This corresponds to information collected from the * AndroidManifest.xml's <permission-group> tags. */ public class PermissionGroupInfo extends PackageItemInfo implements Parcelable { /** * A string resource identifier (in the package's resources) of this * permission's description. From the "description" attribute or, * if not set, 0. */ public int descriptionRes; /** * A string resource identifier (in the package's resources) used to request the permissions. * From the "request" attribute or, if not set, 0. * * @hide */ @SystemApi public @StringRes int requestRes; /** * The description string provided in the AndroidManifest file, if any. You * probably don't want to use this, since it will be null if the description * is in a resource. You probably want * {@link PermissionInfo#loadDescription} instead. */ public CharSequence nonLocalizedDescription; /** * Flag for {@link #flags}, corresponding to <code>personalInfo</code> * value of {@link android.R.attr#permissionGroupFlags}. */ public static final int FLAG_PERSONAL_INFO = 1 << 0; /** * Additional flags about this group as given by * {@link android.R.attr#permissionGroupFlags}. */ public int flags; /** * Prioritization of this group, for visually sorting with other groups. */ public int priority; public PermissionGroupInfo() { } public PermissionGroupInfo(PermissionGroupInfo orig) { super(orig); descriptionRes = orig.descriptionRes; requestRes = orig.requestRes; nonLocalizedDescription = orig.nonLocalizedDescription; flags = orig.flags; priority = orig.priority; } /** * Retrieve the textual description of this permission. This * will call back on the given PackageManager to load the description from * the application. * * @param pm A PackageManager from which the label can be loaded; usually * the PackageManager from which you originally retrieved this item. * * @return Returns a CharSequence containing the permission's description. * If there is no description, null is returned. */ public CharSequence loadDescription(PackageManager pm) { if (nonLocalizedDescription != null) { return nonLocalizedDescription; } if (descriptionRes != 0) { CharSequence label = pm.getText(packageName, descriptionRes, null); if (label != null) { return label; } } return null; } public String toString() { return "PermissionGroupInfo{" + Integer.toHexString(System.identityHashCode(this)) + " " + name + " flgs=0x" + Integer.toHexString(flags) + "}"; } public int describeContents() { return 0; } public void writeToParcel(Parcel dest, int parcelableFlags) { super.writeToParcel(dest, parcelableFlags); dest.writeInt(descriptionRes); dest.writeInt(requestRes); TextUtils.writeToParcel(nonLocalizedDescription, dest, parcelableFlags); dest.writeInt(flags); dest.writeInt(priority); } public static final Creator<PermissionGroupInfo> CREATOR = new Creator<PermissionGroupInfo>() { public PermissionGroupInfo createFromParcel(Parcel source) { return new PermissionGroupInfo(source); } public PermissionGroupInfo[] newArray(int size) { return new PermissionGroupInfo[size]; } }; private PermissionGroupInfo(Parcel source) { super(source); descriptionRes = source.readInt(); requestRes = source.readInt(); nonLocalizedDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); flags = source.readInt(); priority = source.readInt(); } }