Android 4.0 Launcher2 源码 Eclipse版(已修改包名，不冲突系统桌面)

/* * 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 com.android.launcher2; import android.accounts.Account; import android.accounts.AccountManager; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.animation.PropertyValuesHolder; import android.animation.ValueAnimator; import android.animation.ValueAnimator.AnimatorUpdateListener; import android.app.Activity; import android.app.ActivityManager; import android.app.ActivityOptions; import android.app.SearchManager; import android.appwidget.AppWidgetHostView; import android.appwidget.AppWidgetManager; import android.appwidget.AppWidgetProviderInfo; import android.content.ActivityNotFoundException; import android.content.BroadcastReceiver; import android.content.ComponentCallbacks2; import android.content.ComponentName; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.content.pm.ActivityInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.res.Configuration; import android.content.res.Resources; import android.database.ContentObserver; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.PorterDuff; import android.graphics.Rect; import android.graphics.drawable.ColorDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.os.StrictMode; import android.os.SystemClock; import android.provider.Settings; import android.speech.RecognizerIntent; import android.text.Selection; import android.text.SpannableStringBuilder; import android.text.TextUtils; import android.text.method.TextKeyListener; import android.util.Log; import android.view.Display; import android.view.HapticFeedbackConstants; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.Surface; import android.view.View; import android.view.View.OnLongClickListener; import android.view.ViewGroup; import android.view.ViewTreeObserver; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.view.WindowManager; import android.view.accessibility.AccessibilityEvent; import android.view.animation.AccelerateDecelerateInterpolator; import android.view.animation.AccelerateInterpolator; import android.view.animation.DecelerateInterpolator; import android.view.inputmethod.InputMethodManager; import android.widget.Advanceable; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; //import com.android.common.Search; import com.show.luanch.R; import com.android.launcher2.DropTarget.DragObject; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileDescriptor; import java.io.FileNotFoundException; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Set; /** * 桌面主界面Activity */ public final class Launcher extends Activity implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks, View.OnTouchListener { static final String TAG = "Launcher"; static final boolean LOGD = false; static final boolean PROFILE_STARTUP = false; static final boolean DEBUG_WIDGETS = false; static final boolean DEBUG_STRICT_MODE = false; private static final int MENU_GROUP_WALLPAPER = 1; private static final int MENU_WALLPAPER_SETTINGS = Menu.FIRST + 1; private static final int MENU_MANAGE_APPS = MENU_WALLPAPER_SETTINGS + 1; private static final int MENU_SYSTEM_SETTINGS = MENU_MANAGE_APPS + 1; private static final int MENU_HELP = MENU_SYSTEM_SETTINGS + 1; private static final int REQUEST_CREATE_SHORTCUT = 1; private static final int REQUEST_CREATE_APPWIDGET = 5; private static final int REQUEST_PICK_APPLICATION = 6; private static final int REQUEST_PICK_SHORTCUT = 7; private static final int REQUEST_PICK_APPWIDGET = 9; private static final int REQUEST_PICK_WALLPAPER = 10; private static final int REQUEST_BIND_APPWIDGET = 11; static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate"; static final int SCREEN_COUNT = 5;// 五屏 static final int DEFAULT_SCREEN = 2;// 默认屏幕为中间的屏幕 private static final String PREFERENCES = "launcher.preferences"; // To turn on these properties, type // adb shell setprop log.tag.PROPERTY_NAME [VERBOSE | SUPPRESS] static final String FORCE_ENABLE_ROTATION_PROPERTY = "launcher_force_rotate"; static final String DUMP_STATE_PROPERTY = "launcher_dump_state"; // The Intent extra that defines whether to ignore the launch animation static final String INTENT_EXTRA_IGNORE_LAUNCH_ANIMATION = "com.android.launcher.intent.extra.shortcut.INGORE_LAUNCH_ANIMATION"; // Type: int private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen"; // Type: int private static final String RUNTIME_STATE = "launcher.state"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_CONTAINER = "launcher.add_container"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cell_x"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cell_y"; // Type: boolean private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder"; // Type: long private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_SPAN_X = "launcher.add_span_x"; // Type: int private static final String RUNTIME_STATE_PENDING_ADD_SPAN_Y = "launcher.add_span_y"; // Type: parcelable private static final String RUNTIME_STATE_PENDING_ADD_WIDGET_INFO = "launcher.add_widget_info"; private static final String TOOLBAR_ICON_METADATA_NAME = "com.android.launcher.toolbar_icon"; private static final String TOOLBAR_SEARCH_ICON_METADATA_NAME = "com.android.launcher.toolbar_search_icon"; private static final String TOOLBAR_VOICE_SEARCH_ICON_METADATA_NAME = "com.android.launcher.toolbar_voice_search_icon"; /** Launcher可能的四种状态:NONE,桌面上，“所有程序”界面，切换界面？ */ private enum State { NONE, WORKSPACE, APPS_CUSTOMIZE, APPS_CUSTOMIZE_SPRING_LOADED }; private State mState = State.WORKSPACE; private AnimatorSet mStateAnimation; private AnimatorSet mDividerAnimator; static final int APPWIDGET_HOST_ID = 1024; private static final int EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT = 300; private static final int EXIT_SPRINGLOADED_MODE_LONG_TIMEOUT = 600; private static final int SHOW_CLING_DURATION = 550; private static final int DISMISS_CLING_DURATION = 250; private static final Object sLock = new O