gt:                 && navigationHidden != delta.navigationHidden) {
context: /*
   * 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.res;
  
  import android.content.pm.ActivityInfo;
  import android.os.Parcel;
  import android.os.Parcelable;
  import android.util.LocaleUtil;
  
  import java.util.Locale;
  
  /**
   * This class describes all device configuration information that can
   * impact the resources the application retrieves.  This includes both
   * user-specified configuration options (locale and scaling) as well
   * as device configurations (such as input modes, screen size and screen orientation).
   * <p>You can acquire this object from {@link Resources}, using {@link
   * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request
   * with {@link android.app.Activity#getResources}:</p>
   * <pre>Configuration config = getResources().getConfiguration();</pre>
   */
  public final class Configuration implements Parcelable, Comparable<Configuration> {
      /**
       * Current user preference for the scaling factor for fonts, relative
       * to the base density scaling.
       */
      public float fontScale;
  
      /**
       * IMSI MCC (Mobile Country Code).  0 if undefined.
       */
      public int mcc;
      
      /**
       * IMSI MNC (Mobile Network Code).  0 if undefined.
       */
      public int mnc;
      
      /**
       * Current user preference for the locale.
       */
      public Locale locale;
  
      /**
       * Locale should persist on setting.  This is hidden because it is really
       * questionable whether this is the right way to expose the functionality.
       * @hide
       */
      public boolean userSetLocale;
  
      /** Constant for {@link #screenLayout}: bits that encode the size. */
      public static final int SCREENLAYOUT_SIZE_MASK = 0x0f;
      /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
       * value indicating that no size has been set. */
      public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00;
      /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
       * value indicating the screen is at least approximately 320x426 dp units.
       * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
       * Multiple Screens</a> for more information. */
      public static final int SCREENLAYOUT_SIZE_SMALL = 0x01;
      /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
       * value indicating the screen is at least approximately 320x470 dp units.
       * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
       * Multiple Screens</a> for more information. */
      public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02;
      /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
       * value indicating the screen is at least approximately 480x640 dp units.
       * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
       * Multiple Screens</a> for more information. */
      public static final int SCREENLAYOUT_SIZE_LARGE = 0x03;
      /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
       * value indicating the screen is at least approximately 720x960 dp units.
       * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
       * Multiple Screens</a> for more information.*/
      public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04;
      
      public static final int SCREENLAYOUT_LONG_MASK = 0x30;
      public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00;
      public static final int SCREENLAYOUT_LONG_NO = 0x10;
      public static final int SCREENLAYOUT_LONG_YES = 0x20;
      
      /**
       * Special flag we generate to indicate that the screen layout requires
       * us to use a compatibility mode for apps that are not modern layout
       * aware.
       * @hide
       */
      public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000;
      
      /**
       * Bit mask of overall layout of the screen.  Currently there are two
       * fields:
       * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size
       * of the screen.  They may be one of
       * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL},
       * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}.
       * 
       * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen
       * is wider/taller than normal.  They may be one of
       * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}.
       * 
       * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
       * Multiple Screens</a> for more information.
       */
      public int screenLayout;
      
      /**
       * Check if the Configuration's current {@link #screenLayout} is at
       * least the given size.
       *
       * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL},
       * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or
       * {@link #SCREENLAYOUT_SIZE_XLARGE}.
       * @return Returns true if the current screen layout size is at least
       * the given size.
       */
      public boolean isLayoutSizeAtLeast(int size) {
          int cur = screenLayout&SCREENLAYOUT_SIZE_MASK;
          if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false;
          return cur >= size;
      }
  
      public static final int TOUCHSCREEN_UNDEFINED = 0;
      public static final int TOUCHSCREEN_NOTOUCH = 1;
      public static final int TOUCHSCREEN_STYLUS = 2;
      public static final int TOUCHSCREEN_FINGER = 3;
      
      /**
       * The kind of touch screen attached to the device.
       * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_STYLUS}, 
       * {@link #TOUCHSCREEN_FINGER}. 
       */
      public int touchscreen;
      
      public static final int KEYBOARD_UNDEFINED = 0;
      public static final int KEYBOARD_NOKEYS = 1;
      public static final int KEYBOARD_QWERTY = 2;
      public static final int KEYBOARD_12KEY = 3;
      
      /**
       * The kind of keyboard attached to the device.
       * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY},
       * {@link #KEYBOARD_12KEY}.
       */
      public int keyboard;
      
      public static final int KEYBOARDHIDDEN_UNDEFINED = 0;
      public static final int KEYBOARDHIDDEN_NO = 1;
      public static final int KEYBOARDHIDDEN_YES = 2;
      /** Constant matching actual resource implementation. {@hide} */
      public static final int KEYBOARDHIDDEN_SOFT = 3;
      
      /**
       * A flag indicating whether any keyboard is available.  Unlike
       * {@link #hardKeyboardHidden}, this also takes into account a soft
       * keyboard, so if the hard keyboard is hidden but there is soft
       * keyboard available, it will be set to NO.  Value is one of:
       * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}.
       */
      public int keyboardHidden;
      
      public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0;
      public static final int HARDKEYBOARDHIDDEN_NO = 1;
      public static final int HARDKEYBOARDHIDDEN_YES = 2;
      
      /**
       * A flag indicating whether the hard keyboard has been hidden.  This will
       * be set on a device with a mechanism to hide the keyboard from the
       * user, when that mechanism is closed.  One of:
       * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}.
       */
      public int hardKeyboardHidden;
      
      public static final int NAVIGATION_UNDEFINED = 0;
      public static final int NAVIGATION_NONAV = 1;
      public static final int NAVIGATION_DPAD = 2;
      public static final int NAVIGATION_TRACKBALL = 3;
      public static final int NAVIGATION_WHEEL = 4;
      
      /**
       * The kind of navigation method available on the device.
       * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD},
       * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}.
       */
      public int navigation;
      
      public static final int NAVIGATIONHIDDEN_UNDEFINED = 0;
      public static final int NAVIGATIONHIDDEN_NO = 1;
      public static final int NAVIGATIONHIDDEN_YES = 2;
      
      /**
       * A flag indicating whether any 5-way or DPAD navigation available.
       * This will be set on a device with a mechanism to hide the navigation
       * controls from the user, when that mechanism is closed.  One of:
       * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}.
       */
      public int navigationHidden;
      
      public static final int ORIENTATION_UNDEFINED = 0;
      public static final int ORIENTATION_PORTRAIT = 1;
      public static final int ORIENTATION_LANDSCAPE = 2;
      public static final int ORIENTATION_SQUARE = 3;
      
      /**
       * Overall orientation of the screen.  May be one of
       * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT},
       * or {@link #ORIENTATION_SQUARE}.
       */
      public int orientation;
  
      public static final int UI_MODE_TYPE_MASK = 0x0f;
      public static final int UI_MODE_TYPE_UNDEFINED = 0x00;
      public static final int UI_MODE_TYPE_NORMAL = 0x01;
      public static final int UI_MODE_TYPE_DESK = 0x02;
      public static final int UI_MODE_TYPE_CAR = 0x03;
      public static final int UI_MODE_TYPE_TELEVISION = 0x04;
  
      public static final int UI_MODE_NIGHT_MASK = 0x30;
      public static final int UI_MODE_NIGHT_UNDEFINED = 0x00;
      public static final int UI_MODE_NIGHT_NO = 0x10;
      public static final int UI_MODE_NIGHT_YES = 0x20;
  
      /**
       * Bit mask of the ui mode.  Currently there are two fields:
       * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the
       * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED},
       * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK},
       * or {@link #UI_MODE_TYPE_CAR}.
       *
       * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen
       * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED},
       * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}.
       */
      public int uiMode;
  
      public static final int SCREEN_WIDTH_DP_UNDEFINED = 0;
  
      /**
       * The current width of the available screen space, in dp units.
       */
      public int screenWidthDp;
  
      public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0;
  
      /**
       * The current height of the available screen space, in dp units.
       */
      public int screenHeightDp;
  
      public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0;
  
      /**
       * The smallest screen size an application will see in normal operation.
       * This is the smallest value of both screenWidthDp and screenHeightDp
       * in both portrait and landscape.
       */
      public int smallestScreenWidthDp;
  
      /** @hide Hack to get this information from WM to app running in compat mode. */
      public int compatScreenWidthDp;
      /** @hide Hack to get this information from WM to app running in compat mode. */
      public int compatScreenHeightDp;
      /** @hide Hack to get this information from WM to app running in compat mode. */
      public int compatSmallestScreenWidthDp;
  
      /**
       * @hide The text layout direction associated to the current Locale
       */
      public int textLayoutDirection;
  
      /**
       * @hide Internal book-keeping.
       */
      public int seq;
      
      /**
       * Construct an invalid Configuration.  You must call {@link #setToDefaults}
       * for this object to be valid.  {@more}
       */
      public Configuration() {
          setToDefaults();
      }
  
      /**
       * Makes a deep copy suitable for modification.
       */
      public Configuration(Configuration o) {
          setTo(o);
      }
  
      public void setTo(Configuration o) {
          fontScale = o.fontScale;
          mcc = o.mcc;
          mnc = o.mnc;
          if (o.locale != null) {
              locale = (Locale) o.locale.clone();
              textLayoutDirection = o.textLayoutDirection;
          }
          userSetLocale = o.userSetLocale;
          touchscreen = o.touchscreen;
          keyboard = o.keyboard;
          keyboardHidden = o.keyboardHidden;
          hardKeyboardHidden = o.hardKeyboardHidden;
          navigation = o.navigation;
          navigationHidden = o.navigationHidden;
          orientation = o.orientation;
          screenLayout = o.screenLayout;
          uiMode = o.uiMode;
          screenWidthDp = o.screenWidthDp;
          screenHeightDp = o.screenHeightDp;
          smallestScreenWidthDp = o.smallestScreenWidthDp;
          compatScreenWidthDp = o.compatScreenWidthDp;
          compatScreenHeightDp = o.compatScreenHeightDp;
          compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp;
          seq = o.seq;
      }
      
      public String toString() {
          StringBuilder sb = new StringBuilder(128);
          sb.append("{");
          sb.append(fontScale);
          sb.append(" ");
          sb.append(mcc);
          sb.append("mcc");
          sb.append(mnc);
          sb.append("mnc");
          if (locale != null) {
              sb.append(" ");
              sb.append(locale);
          } else {
              sb.append(" (no locale)");
          }
          switch (textLayoutDirection) {
              case LocaleUtil.TEXT_LAYOUT_DIRECTION_RTL_DO_NOT_USE: sb.append(" rtl"); break;
              default: sb.append(" layoutdir="); sb.append(textLayoutDirection); break;
          }
          if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
              sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp");
          } else {
              sb.append(" ?swdp");
          }
          if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
              sb.append(" w"); sb.append(screenWidthDp); sb.append("dp");
          } else {
              sb.append(" ?wdp");
          }
          if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
              sb.append(" h"); sb.append(screenHeightDp); sb.append("dp");
          } else {
              sb.append(" ?hdp");
          }
          switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) {
              case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break;
              case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break;
              case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break;
              case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break;
              case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break;
              default: sb.append(" layoutSize=");
                      sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break;
          }
          switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) {
              case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break;
              case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break;
              case SCREENLAYOUT_LONG_YES: sb.append(" long"); break;
              default: sb.append(" layoutLong=");
                      sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break;
          }
          switch (orientation) {
              case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break;
              case ORIENTATION_LANDSCAPE: sb.append(" land"); break;
              case ORIENTATION_PORTRAIT: sb.append(" port"); break;
              default: sb.append(" orien="); sb.append(orientation); break;
          }
          switch ((uiMode&UI_MODE_TYPE_MASK)) {
              case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break;
              case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break;
              case UI_MODE_TYPE_DESK: sb.append(" desk"); break;
              case UI_MODE_TYPE_CAR: sb.append(" car"); break;
              case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break;
              default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break;
          }
          switch ((uiMode&UI_MODE_NIGHT_MASK)) {
              case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break;
              case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break;
              case UI_MODE_NIGHT_YES: sb.append(" night"); break;
              default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break;
          }
          switch (touchscreen) {
              case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break;
              case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break;
              case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break;
              case TOUCHSCREEN_FINGER: sb.append(" finger"); break;
              default: sb.append(" touch="); sb.append(touchscreen); break;
          }
          switch (keyboard) {
              case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break;
              case KEYBOARD_NOKEYS: sb.append(" -keyb"); break;
              case KEYBOARD_QWERTY: sb.append(" qwerty"); break;
              case KEYBOARD_12KEY: sb.append(" 12key"); break;
              default: sb.append(" keys="); sb.append(keyboard); break;
          }
          switch (keyboardHidden) {
              case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
              case KEYBOARDHIDDEN_NO: sb.append("/v"); break;
              case KEYBOARDHIDDEN_YES: sb.append("/h"); break;
              case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break;
              default: sb.append("/"); sb.append(keyboardHidden); break;
          }
          switch (hardKeyboardHidden) {
              case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
              case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break;
              case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break;
              default: sb.append("/"); sb.append(hardKeyboardHidden); break;
          }
          switch (navigation) {
              case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break;
              case NAVIGATION_NONAV: sb.append(" -nav"); break;
              case NAVIGATION_DPAD: sb.append(" dpad"); break;
              case NAVIGATION_TRACKBALL: sb.append(" tball"); break;
              case NAVIGATION_WHEEL: sb.append(" wheel"); break;
              default: sb.append(" nav="); sb.append(navigation); break;
          }
          switch (navigationHidden) {
              case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break;
              case NAVIGATIONHIDDEN_NO: sb.append("/v"); break;
              case NAVIGATIONHIDDEN_YES: sb.append("/h"); break;
              default: sb.append("/"); sb.append(navigationHidden); break;
          }
          if (seq != 0) {
              sb.append(" s.");
              sb.append(seq);
          }
          sb.append('}');
          return sb.toString();
      }
  
      /**
       * Set this object to the system defaults.
       */
      public void setToDefaults() {
          fontScale = 1;
          mcc = mnc = 0;
          locale = null;
          userSetLocale = false;
          touchscreen = TOUCHSCREEN_UNDEFINED;
          keyboard = KEYBOARD_UNDEFINED;
          keyboardHidden = KEYBOARDHIDDEN_UNDEFINED;
          hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED;
          navigation = NAVIGATION_UNDEFINED;
          navigationHidden = NAVIGATIONHIDDEN_UNDEFINED;
          orientation = ORIENTATION_UNDEFINED;
          screenLayout = SCREENLAYOUT_SIZE_UNDEFINED;
          uiMode = UI_MODE_TYPE_UNDEFINED;
          screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED;
          screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED;
          smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
          textLayoutDirection = LocaleUtil.TEXT_LAYOUT_DIRECTION_LTR_DO_NOT_USE;
          seq = 0;
      }
  
      /** {@hide} */
      @Deprecated public void makeDefault() {
          setToDefaults();
      }
      
      /**
       * Copy the fields from delta into this Configuration object, keeping
       * track of which ones have changed.  Any undefined fields in
       * <var>delta</var> are ignored and not copied in to the current
       * Configuration.
       * @return Returns a bit mask of the changed fields, as per
       * {@link #diff}.
       */
      public int updateFrom(Configuration delta) {
          int changed = 0;
          if (delta.fontScale > 0 && fontScale != delta.fontScale) {
              changed |= ActivityInfo.CONFIG_FONT_SCALE;
              fontScale = delta.fontScale;
          }
          if (delta.mcc != 0 && mcc != delta.mcc) {
              changed |= ActivityInfo.CONFIG_MCC;
              mcc = delta.mcc;
          }
          if (delta.mnc != 0 && mnc != delta.mnc) {
              changed |= ActivityInfo.CONFIG_MNC;
              mnc = delta.mnc;
          }
          if (delta.locale != null
                  && (locale == null || !locale.equals(delta.locale))) {
              changed |= ActivityInfo.CONFIG_LOCALE;
              locale = delta.locale != null
                      ? (Locale) delta.locale.clone() : null;
              textLayoutDirection = LocaleUtil.getLayoutDirectionFromLocale(locale);
          }
          if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0)))
          {
              userSetLocale = true;
              changed |= ActivityInfo.CONFIG_LOCALE;
          }
          if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
                  && touchscreen != delta.touchscreen) {
              changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
              touchscreen = delta.touchscreen;
          }
          if (delta.keyboard != KEYBOARD_UNDEFINED
                  && keyboard != delta.keyboard) {
              changed |= ActivityInfo.CONFIG_KEYBOARD;
              keyboard = delta.keyboard;
          }
          if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
                  && keyboardHidden != delta.keyboardHidden) {
              changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
              keyboardHidden = delta.keyboardHidden;
          }
          if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
                  && hardKeyboardHidden != delta.hardKeyboardHidden) {
              changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
              hardKeyboardHidden = delta.hardKeyboardHidden;
          }
          if (delta.navigation != NAVIGATION_UNDEFINED
                  && navigation != delta.navigation) {
              changed |= ActivityInfo.CONFIG_NAVIGATION;
              navigation = delta.navigation;
          }
          if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
                  && navigationHidden != delta.navigationHidden) {
              changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
              navigationHidden = delta.navigationHidden;
          }
          if (delta.orientation != ORIENTATION_UNDEFINED
                  && orientation != delta.orientation) {
              changed |= ActivityInfo.CONFIG_ORIENTATION;
              orientation = delta.orientation;
          }
          if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED
                  && screenLayout != delta.screenLayout) {
              changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
              screenLayout = delta.screenLayout;
          }
          if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
                  && uiMode != delta.uiMode) {
              changed |= ActivityInfo.CONFIG_UI_MODE;
              if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) {
                  uiMode = (uiMode&~UI_MODE_TYPE_MASK)
                          | (delta.uiMode&UI_MODE_TYPE_MASK);
              }
              if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) {
                  uiMode = (uiMode&~UI_MODE_NIGHT_MASK)
                          | (delta.uiMode&UI_MODE_NIGHT_MASK);
              }
          }
          if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
                  && screenWidthDp != delta.screenWidthDp) {
              changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
              screenWidthDp = delta.screenWidthDp;
          }
          if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
                  && screenHeightDp != delta.screenHeightDp) {
              changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
              screenHeightDp = delta.screenHeightDp;
          }
          if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
              smallestScreenWidthDp = delta.smallestScreenWidthDp;
          }
          if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
              compatScreenWidthDp = delta.compatScreenWidthDp;
          }
          if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
              compatScreenHeightDp = delta.compatScreenHeightDp;
          }
          if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
              compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp;
          }
          
          if (delta.seq != 0) {
              seq = delta.seq;
          }
          
          return changed;
      }
  
      /**
       * Return a bit mask of the differences between this Configuration
       * object and the given one.  Does not change the values of either.  Any
       * undefined fields in <var>delta</var> are ignored.
       * @return Returns a bit mask indicating which configuration
       * values has changed, containing any combination of
       * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE
       * PackageManager.ActivityInfo.CONFIG_FONT_SCALE},
       * {@link android.content.pm.ActivityInfo#CONFIG_MCC
       * PackageManager.ActivityInfo.CONFIG_MCC},
       * {@link android.content.pm.ActivityInfo#CONFIG_MNC
       * PackageManager.ActivityInfo.CONFIG_MNC},
       * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE
       * PackageManager.ActivityInfo.CONFIG_LOCALE},
       * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN
       * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN},
       * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD
       * PackageManager.ActivityInfo.CONFIG_KEYBOARD},
       * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION
       * PackageManager.ActivityInfo.CONFIG_NAVIGATION},
       * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION
       * PackageManager.ActivityInfo.CONFIG_ORIENTATION},
       * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT
       * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or
       * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE
       * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or
       * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE
       * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}.
       */
      public int diff(Configuration delta) {
          int changed = 0;
          if (delta.fontScale > 0 && fontScale != delta.fontScale) {
              changed |= ActivityInfo.CONFIG_FONT_SCALE;
          }
          if (delta.mcc != 0 && mcc != delta.mcc) {
              changed |= ActivityInfo.CONFIG_MCC;
          }
          if (delta.mnc != 0 && mnc != delta.mnc) {
              changed |= ActivityInfo.CONFIG_MNC;
          }
          if (delta.locale != null
                  && (locale == null || !locale.equals(delta.locale))) {
              changed |= ActivityInfo.CONFIG_LOCALE;
          }
          if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
                  && touchscreen != delta.touchscreen) {
              changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
          }
          if (delta.keyboard != KEYBOARD_UNDEFINED
                  && keyboard != delta.keyboard) {
              changed |= ActivityInfo.CONFIG_KEYBOARD;
          }
          if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
                  && keyboardHidden != delta.keyboardHidden) {
              changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
          }
          if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
                  && hardKeyboardHidden != delta.hardKeyboardHidden) {
              changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
          }
          if (delta.navigation != NAVIGATION_UNDEFINED
                  && navigation != delta.navigation) {
              changed |= ActivityInfo.CONFIG_NAVIGATION;
          }
          if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
  