Configuration.java revision 31245b4f06003f1c8cd44c31b387c96ab4e282f9
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content.res;
18
19import android.content.pm.ActivityInfo;
20import android.os.Build;
21import android.os.Parcel;
22import android.os.Parcelable;
23import android.text.TextUtils;
24import android.view.View;
25
26import java.text.Format;
27import java.util.ArrayList;
28import java.util.Locale;
29
30/**
31 * This class describes all device configuration information that can
32 * impact the resources the application retrieves.  This includes both
33 * user-specified configuration options (locale and scaling) as well
34 * as device configurations (such as input modes, screen size and screen orientation).
35 * <p>You can acquire this object from {@link Resources}, using {@link
36 * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request
37 * with {@link android.app.Activity#getResources}:</p>
38 * <pre>Configuration config = getResources().getConfiguration();</pre>
39 */
40public final class Configuration implements Parcelable, Comparable<Configuration> {
41    /** @hide */
42    public static final Configuration EMPTY = new Configuration();
43
44    /**
45     * Current user preference for the scaling factor for fonts, relative
46     * to the base density scaling.
47     */
48    public float fontScale;
49
50    /**
51     * IMSI MCC (Mobile Country Code), corresponding to
52     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mcc</a>
53     * resource qualifier.  0 if undefined.
54     */
55    public int mcc;
56
57    /**
58     * IMSI MNC (Mobile Network Code), corresponding to
59     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mnc</a>
60     * resource qualifier.  0 if undefined. Note that the actual MNC may be 0; in order to check
61     * for this use the {@link #MNC_ZERO} symbol.
62     */
63    public int mnc;
64
65    /**
66     * Constant used to to represent MNC (Mobile Network Code) zero.
67     * 0 cannot be used, since it is used to represent an undefined MNC.
68     */
69    public static final int MNC_ZERO = 0xffff;
70
71    /**
72     * Current user preference for the locale, corresponding to
73     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#LocaleQualifier">locale</a>
74     * resource qualifier.
75     */
76    public Locale locale;
77
78    /**
79     * Locale should persist on setting.  This is hidden because it is really
80     * questionable whether this is the right way to expose the functionality.
81     * @hide
82     */
83    public boolean userSetLocale;
84
85    /** Constant for {@link #screenLayout}: bits that encode the size. */
86    public static final int SCREENLAYOUT_SIZE_MASK = 0x0f;
87    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
88     * value indicating that no size has been set. */
89    public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00;
90    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
91     * value indicating the screen is at least approximately 320x426 dp units,
92     * corresponds to the
93     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">small</a>
94     * resource qualifier.
95     * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
96     * Multiple Screens</a> for more information. */
97    public static final int SCREENLAYOUT_SIZE_SMALL = 0x01;
98    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
99     * value indicating the screen is at least approximately 320x470 dp units,
100     * corresponds to the
101     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">normal</a>
102     * resource qualifier.
103     * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
104     * Multiple Screens</a> for more information. */
105    public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02;
106    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
107     * value indicating the screen is at least approximately 480x640 dp units,
108     * corresponds to the
109     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">large</a>
110     * resource qualifier.
111     * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
112     * Multiple Screens</a> for more information. */
113    public static final int SCREENLAYOUT_SIZE_LARGE = 0x03;
114    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
115     * value indicating the screen is at least approximately 720x960 dp units,
116     * corresponds to the
117     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">xlarge</a>
118     * resource qualifier.
119     * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
120     * Multiple Screens</a> for more information.*/
121    public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04;
122
123    /** Constant for {@link #screenLayout}: bits that encode the aspect ratio. */
124    public static final int SCREENLAYOUT_LONG_MASK = 0x30;
125    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
126     * value indicating that no size has been set. */
127    public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00;
128    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
129     * value that corresponds to the
130     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">notlong</a>
131     * resource qualifier. */
132    public static final int SCREENLAYOUT_LONG_NO = 0x10;
133    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
134     * value that corresponds to the
135     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">long</a>
136     * resource qualifier. */
137    public static final int SCREENLAYOUT_LONG_YES = 0x20;
138
139    /** Constant for {@link #screenLayout}: bits that encode the layout direction. */
140    public static final int SCREENLAYOUT_LAYOUTDIR_MASK = 0xC0;
141    /** Constant for {@link #screenLayout}: bits shift to get the layout direction. */
142    public static final int SCREENLAYOUT_LAYOUTDIR_SHIFT = 6;
143    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
144     * value indicating that no layout dir has been set. */
145    public static final int SCREENLAYOUT_LAYOUTDIR_UNDEFINED = 0x00;
146    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
147     * value indicating that a layout dir has been set to LTR. */
148    public static final int SCREENLAYOUT_LAYOUTDIR_LTR = 0x01 << SCREENLAYOUT_LAYOUTDIR_SHIFT;
149    /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
150     * value indicating that a layout dir has been set to RTL. */
151    public static final int SCREENLAYOUT_LAYOUTDIR_RTL = 0x02 << SCREENLAYOUT_LAYOUTDIR_SHIFT;
152
153    /** Constant for {@link #screenLayout}: a value indicating that screenLayout is undefined */
154    public static final int SCREENLAYOUT_UNDEFINED = SCREENLAYOUT_SIZE_UNDEFINED |
155            SCREENLAYOUT_LONG_UNDEFINED | SCREENLAYOUT_LAYOUTDIR_UNDEFINED;
156
157    /**
158     * Special flag we generate to indicate that the screen layout requires
159     * us to use a compatibility mode for apps that are not modern layout
160     * aware.
161     * @hide
162     */
163    public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000;
164
165    /**
166     * Bit mask of overall layout of the screen.  Currently there are two
167     * fields:
168     * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size
169     * of the screen.  They may be one of
170     * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL},
171     * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}.
172     *
173     * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen
174     * is wider/taller than normal.  They may be one of
175     * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}.
176     *
177     * <p>The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout
178     * is either LTR or RTL.  They may be one of
179     * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}.
180     *
181     * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
182     * Multiple Screens</a> for more information.
183     */
184    public int screenLayout;
185
186    /** @hide */
187    static public int resetScreenLayout(int curLayout) {
188        return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK
189                        | SCREENLAYOUT_COMPAT_NEEDED))
190                | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE);
191    }
192
193    /** @hide */
194    static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) {
195        int screenLayoutSize;
196        boolean screenLayoutLong;
197        boolean screenLayoutCompatNeeded;
198
199        // These semi-magic numbers define our compatibility modes for
200        // applications with different screens.  These are guarantees to
201        // app developers about the space they can expect for a particular
202        // configuration.  DO NOT CHANGE!
203        if (longSizeDp < 470) {
204            // This is shorter than an HVGA normal density screen (which
205            // is 480 pixels on its long side).
206            screenLayoutSize = SCREENLAYOUT_SIZE_SMALL;
207            screenLayoutLong = false;
208            screenLayoutCompatNeeded = false;
209        } else {
210            // What size is this screen screen?
211            if (longSizeDp >= 960 && shortSizeDp >= 720) {
212                // 1.5xVGA or larger screens at medium density are the point
213                // at which we consider it to be an extra large screen.
214                screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE;
215            } else if (longSizeDp >= 640 && shortSizeDp >= 480) {
216                // VGA or larger screens at medium density are the point
217                // at which we consider it to be a large screen.
218                screenLayoutSize = SCREENLAYOUT_SIZE_LARGE;
219            } else {
220                screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL;
221            }
222
223            // If this screen is wider than normal HVGA, or taller
224            // than FWVGA, then for old apps we want to run in size
225            // compatibility mode.
226            if (shortSizeDp > 321 || longSizeDp > 570) {
227                screenLayoutCompatNeeded = true;
228            } else {
229                screenLayoutCompatNeeded = false;
230            }
231
232            // Is this a long screen?
233            if (((longSizeDp*3)/5) >= (shortSizeDp-1)) {
234                // Anything wider than WVGA (5:3) is considering to be long.
235                screenLayoutLong = true;
236            } else {
237                screenLayoutLong = false;
238            }
239        }
240
241        // Now reduce the last screenLayout to not be better than what we
242        // have found.
243        if (!screenLayoutLong) {
244            curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO;
245        }
246        if (screenLayoutCompatNeeded) {
247            curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED;
248        }
249        int curSize = curLayout&SCREENLAYOUT_SIZE_MASK;
250        if (screenLayoutSize < curSize) {
251            curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize;
252        }
253        return curLayout;
254    }
255
256    /**
257     * Check if the Configuration's current {@link #screenLayout} is at
258     * least the given size.
259     *
260     * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL},
261     * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or
262     * {@link #SCREENLAYOUT_SIZE_XLARGE}.
263     * @return Returns true if the current screen layout size is at least
264     * the given size.
265     */
266    public boolean isLayoutSizeAtLeast(int size) {
267        int cur = screenLayout&SCREENLAYOUT_SIZE_MASK;
268        if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false;
269        return cur >= size;
270    }
271
272    /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */
273    public static final int TOUCHSCREEN_UNDEFINED = 0;
274    /** Constant for {@link #touchscreen}, value corresponding to the
275     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a>
276     * resource qualifier. */
277    public static final int TOUCHSCREEN_NOTOUCH = 1;
278    /** @deprecated Not currently supported or used. */
279    @Deprecated public static final int TOUCHSCREEN_STYLUS = 2;
280    /** Constant for {@link #touchscreen}, value corresponding to the
281     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a>
282     * resource qualifier. */
283    public static final int TOUCHSCREEN_FINGER = 3;
284
285    /**
286     * The kind of touch screen attached to the device.
287     * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}.
288     */
289    public int touchscreen;
290
291    /** Constant for {@link #keyboard}: a value indicating that no value has been set. */
292    public static final int KEYBOARD_UNDEFINED = 0;
293    /** Constant for {@link #keyboard}, value corresponding to the
294     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a>
295     * resource qualifier. */
296    public static final int KEYBOARD_NOKEYS = 1;
297    /** Constant for {@link #keyboard}, value corresponding to the
298     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a>
299     * resource qualifier. */
300    public static final int KEYBOARD_QWERTY = 2;
301    /** Constant for {@link #keyboard}, value corresponding to the
302     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a>
303     * resource qualifier. */
304    public static final int KEYBOARD_12KEY = 3;
305
306    /**
307     * The kind of keyboard attached to the device.
308     * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY},
309     * {@link #KEYBOARD_12KEY}.
310     */
311    public int keyboard;
312
313    /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */
314    public static final int KEYBOARDHIDDEN_UNDEFINED = 0;
315    /** Constant for {@link #keyboardHidden}, value corresponding to the
316     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a>
317     * resource qualifier. */
318    public static final int KEYBOARDHIDDEN_NO = 1;
319    /** Constant for {@link #keyboardHidden}, value corresponding to the
320     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a>
321     * resource qualifier. */
322    public static final int KEYBOARDHIDDEN_YES = 2;
323    /** Constant matching actual resource implementation. {@hide} */
324    public static final int KEYBOARDHIDDEN_SOFT = 3;
325
326    /**
327     * A flag indicating whether any keyboard is available.  Unlike
328     * {@link #hardKeyboardHidden}, this also takes into account a soft
329     * keyboard, so if the hard keyboard is hidden but there is soft
330     * keyboard available, it will be set to NO.  Value is one of:
331     * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}.
332     */
333    public int keyboardHidden;
334
335    /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */
336    public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0;
337    /** Constant for {@link #hardKeyboardHidden}, value corresponding to the
338     * physical keyboard being exposed. */
339    public static final int HARDKEYBOARDHIDDEN_NO = 1;
340    /** Constant for {@link #hardKeyboardHidden}, value corresponding to the
341     * physical keyboard being hidden. */
342    public static final int HARDKEYBOARDHIDDEN_YES = 2;
343
344    /**
345     * A flag indicating whether the hard keyboard has been hidden.  This will
346     * be set on a device with a mechanism to hide the keyboard from the
347     * user, when that mechanism is closed.  One of:
348     * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}.
349     */
350    public int hardKeyboardHidden;
351
352    /** Constant for {@link #navigation}: a value indicating that no value has been set. */
353    public static final int NAVIGATION_UNDEFINED = 0;
354    /** Constant for {@link #navigation}, value corresponding to the
355     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a>
356     * resource qualifier. */
357    public static final int NAVIGATION_NONAV = 1;
358    /** Constant for {@link #navigation}, value corresponding to the
359     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a>
360     * resource qualifier. */
361    public static final int NAVIGATION_DPAD = 2;
362    /** Constant for {@link #navigation}, value corresponding to the
363     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a>
364     * resource qualifier. */
365    public static final int NAVIGATION_TRACKBALL = 3;
366    /** Constant for {@link #navigation}, value corresponding to the
367     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a>
368     * resource qualifier. */
369    public static final int NAVIGATION_WHEEL = 4;
370
371    /**
372     * The kind of navigation method available on the device.
373     * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD},
374     * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}.
375     */
376    public int navigation;
377
378    /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */
379    public static final int NAVIGATIONHIDDEN_UNDEFINED = 0;
380    /** Constant for {@link #navigationHidden}, value corresponding to the
381     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a>
382     * resource qualifier. */
383    public static final int NAVIGATIONHIDDEN_NO = 1;
384    /** Constant for {@link #navigationHidden}, value corresponding to the
385     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a>
386     * resource qualifier. */
387    public static final int NAVIGATIONHIDDEN_YES = 2;
388
389    /**
390     * A flag indicating whether any 5-way or DPAD navigation available.
391     * This will be set on a device with a mechanism to hide the navigation
392     * controls from the user, when that mechanism is closed.  One of:
393     * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}.
394     */
395    public int navigationHidden;
396
397    /** Constant for {@link #orientation}: a value indicating that no value has been set. */
398    public static final int ORIENTATION_UNDEFINED = 0;
399    /** Constant for {@link #orientation}, value corresponding to the
400     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a>
401     * resource qualifier. */
402    public static final int ORIENTATION_PORTRAIT = 1;
403    /** Constant for {@link #orientation}, value corresponding to the
404     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a>
405     * resource qualifier. */
406    public static final int ORIENTATION_LANDSCAPE = 2;
407    /** @deprecated Not currently supported or used. */
408    @Deprecated public static final int ORIENTATION_SQUARE = 3;
409
410    /**
411     * Overall orientation of the screen.  May be one of
412     * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}.
413     */
414    public int orientation;
415
416    /** Constant for {@link #uiMode}: bits that encode the mode type. */
417    public static final int UI_MODE_TYPE_MASK = 0x0f;
418    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
419     * value indicating that no mode type has been set. */
420    public static final int UI_MODE_TYPE_UNDEFINED = 0x00;
421    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
422     * value that corresponds to
423     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no
424     * UI mode</a> resource qualifier specified. */
425    public static final int UI_MODE_TYPE_NORMAL = 0x01;
426    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
427     * value that corresponds to the
428     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a>
429     * resource qualifier. */
430    public static final int UI_MODE_TYPE_DESK = 0x02;
431    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
432     * value that corresponds to the
433     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a>
434     * resource qualifier. */
435    public static final int UI_MODE_TYPE_CAR = 0x03;
436    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
437     * value that corresponds to the
438     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a>
439     * resource qualifier. */
440    public static final int UI_MODE_TYPE_TELEVISION = 0x04;
441    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
442     * value that corresponds to the
443     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a>
444     * resource qualifier. */
445    public static final int UI_MODE_TYPE_APPLIANCE = 0x05;
446    /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
447     * value that corresponds to the
448     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">watch</a>
449     * resource qualifier. */
450    public static final int UI_MODE_TYPE_WATCH = 0x06;
451
452    /** Constant for {@link #uiMode}: bits that encode the night mode. */
453    public static final int UI_MODE_NIGHT_MASK = 0x30;
454    /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
455     * value indicating that no mode type has been set. */
456    public static final int UI_MODE_NIGHT_UNDEFINED = 0x00;
457    /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
458     * value that corresponds to the
459     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a>
460     * resource qualifier. */
461    public static final int UI_MODE_NIGHT_NO = 0x10;
462    /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
463     * value that corresponds to the
464     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a>
465     * resource qualifier. */
466    public static final int UI_MODE_NIGHT_YES = 0x20;
467
468    /**
469     * Bit mask of the ui mode.  Currently there are two fields:
470     * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the
471     * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED},
472     * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK},
473     * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION},
474     * {@link #UI_MODE_TYPE_APPLIANCE}, or {@link #UI_MODE_TYPE_WATCH}.
475     *
476     * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen
477     * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED},
478     * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}.
479     */
480    public int uiMode;
481
482    /**
483     * Default value for {@link #screenWidthDp} indicating that no width
484     * has been specified.
485     */
486    public static final int SCREEN_WIDTH_DP_UNDEFINED = 0;
487
488    /**
489     * The current width of the available screen space, in dp units,
490     * corresponding to
491     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen
492     * width</a> resource qualifier.  Set to
493     * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
494     */
495    public int screenWidthDp;
496
497    /**
498     * Default value for {@link #screenHeightDp} indicating that no width
499     * has been specified.
500     */
501    public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0;
502
503    /**
504     * The current height of the available screen space, in dp units,
505     * corresponding to
506     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen
507     * height</a> resource qualifier.  Set to
508     * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified.
509     */
510    public int screenHeightDp;
511
512    /**
513     * Default value for {@link #smallestScreenWidthDp} indicating that no width
514     * has been specified.
515     */
516    public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0;
517
518    /**
519     * The smallest screen size an application will see in normal operation,
520     * corresponding to
521     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest
522     * screen width</a> resource qualifier.
523     * This is the smallest value of both screenWidthDp and screenHeightDp
524     * in both portrait and landscape.  Set to
525     * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
526     */
527    public int smallestScreenWidthDp;
528
529    /**
530     * Default value for {@link #densityDpi} indicating that no width
531     * has been specified.
532     */
533    public static final int DENSITY_DPI_UNDEFINED = 0;
534
535    /**
536     * Value for {@link #densityDpi} for resources that scale to any density (vector drawables).
537     * {@hide}
538     */
539    public static final int DENSITY_DPI_ANY = 0xfffe;
540
541    /**
542     * Value for {@link #densityDpi} for resources that are not meant to be scaled.
543     * {@hide}
544     */
545    public static final int DENSITY_DPI_NONE = 0xffff;
546
547    /**
548     * The target screen density being rendered to,
549     * corresponding to
550     * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a>
551     * resource qualifier.  Set to
552     * {@link #DENSITY_DPI_UNDEFINED} if no density is specified.
553     */
554    public int densityDpi;
555
556    /** @hide Hack to get this information from WM to app running in compat mode. */
557    public int compatScreenWidthDp;
558    /** @hide Hack to get this information from WM to app running in compat mode. */
559    public int compatScreenHeightDp;
560    /** @hide Hack to get this information from WM to app running in compat mode. */
561    public int compatSmallestScreenWidthDp;
562
563    /**
564     * @hide Internal book-keeping.
565     */
566    public int seq;
567
568    /** @hide Native-specific bit mask for MCC config; DO NOT USE UNLESS YOU ARE SURE. */
569    public static final int NATIVE_CONFIG_MCC = 0x0001;
570    /** @hide Native-specific bit mask for MNC config; DO NOT USE UNLESS YOU ARE SURE. */
571    public static final int NATIVE_CONFIG_MNC = 0x0002;
572    /** @hide Native-specific bit mask for LOCALE config; DO NOT USE UNLESS YOU ARE SURE. */
573    public static final int NATIVE_CONFIG_LOCALE = 0x0004;
574    /** @hide Native-specific bit mask for TOUCHSCREEN config; DO NOT USE UNLESS YOU ARE SURE. */
575    public static final int NATIVE_CONFIG_TOUCHSCREEN = 0x0008;
576    /** @hide Native-specific bit mask for KEYBOARD config; DO NOT USE UNLESS YOU ARE SURE. */
577    public static final int NATIVE_CONFIG_KEYBOARD = 0x0010;
578    /** @hide Native-specific bit mask for KEYBOARD_HIDDEN config; DO NOT USE UNLESS YOU
579     * ARE SURE. */
580    public static final int NATIVE_CONFIG_KEYBOARD_HIDDEN = 0x0020;
581    /** @hide Native-specific bit mask for NAVIGATION config; DO NOT USE UNLESS YOU ARE SURE. */
582    public static final int NATIVE_CONFIG_NAVIGATION = 0x0040;
583    /** @hide Native-specific bit mask for ORIENTATION config; DO NOT USE UNLESS YOU ARE SURE. */
584    public static final int NATIVE_CONFIG_ORIENTATION = 0x0080;
585    /** @hide Native-specific bit mask for DENSITY config; DO NOT USE UNLESS YOU ARE SURE. */
586    public static final int NATIVE_CONFIG_DENSITY = 0x0100;
587    /** @hide Native-specific bit mask for SCREEN_SIZE config; DO NOT USE UNLESS YOU ARE SURE. */
588    public static final int NATIVE_CONFIG_SCREEN_SIZE = 0x0200;
589    /** @hide Native-specific bit mask for VERSION config; DO NOT USE UNLESS YOU ARE SURE. */
590    public static final int NATIVE_CONFIG_VERSION = 0x0400;
591    /** @hide Native-specific bit mask for SCREEN_LAYOUT config; DO NOT USE UNLESS YOU ARE SURE. */
592    public static final int NATIVE_CONFIG_SCREEN_LAYOUT = 0x0800;
593    /** @hide Native-specific bit mask for UI_MODE config; DO NOT USE UNLESS YOU ARE SURE. */
594    public static final int NATIVE_CONFIG_UI_MODE = 0x1000;
595    /** @hide Native-specific bit mask for SMALLEST_SCREEN_SIZE config; DO NOT USE UNLESS YOU
596     * ARE SURE. */
597    public static final int NATIVE_CONFIG_SMALLEST_SCREEN_SIZE = 0x2000;
598    /** @hide Native-specific bit mask for LAYOUTDIR config ; DO NOT USE UNLESS YOU ARE SURE.*/
599    public static final int NATIVE_CONFIG_LAYOUTDIR = 0x4000;
600
601    /**
602     * Construct an invalid Configuration.  You must call {@link #setToDefaults}
603     * for this object to be valid.  {@more}
604     */
605    public Configuration() {
606        setToDefaults();
607    }
608
609    /**
610     * Makes a deep copy suitable for modification.
611     */
612    public Configuration(Configuration o) {
613        setTo(o);
614    }
615
616    public void setTo(Configuration o) {
617        fontScale = o.fontScale;
618        mcc = o.mcc;
619        mnc = o.mnc;
620        if (o.locale != null) {
621            locale = (Locale) o.locale.clone();
622        }
623        userSetLocale = o.userSetLocale;
624        touchscreen = o.touchscreen;
625        keyboard = o.keyboard;
626        keyboardHidden = o.keyboardHidden;
627        hardKeyboardHidden = o.hardKeyboardHidden;
628        navigation = o.navigation;
629        navigationHidden = o.navigationHidden;
630        orientation = o.orientation;
631        screenLayout = o.screenLayout;
632        uiMode = o.uiMode;
633        screenWidthDp = o.screenWidthDp;
634        screenHeightDp = o.screenHeightDp;
635        smallestScreenWidthDp = o.smallestScreenWidthDp;
636        densityDpi = o.densityDpi;
637        compatScreenWidthDp = o.compatScreenWidthDp;
638        compatScreenHeightDp = o.compatScreenHeightDp;
639        compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp;
640        seq = o.seq;
641    }
642
643    public String toString() {
644        StringBuilder sb = new StringBuilder(128);
645        sb.append("{");
646        sb.append(fontScale);
647        sb.append(" ");
648        if (mcc != 0) {
649            sb.append(mcc);
650            sb.append("mcc");
651        } else {
652            sb.append("?mcc");
653        }
654        if (mnc != 0) {
655            sb.append(mnc);
656            sb.append("mnc");
657        } else {
658            sb.append("?mnc");
659        }
660        if (locale != null) {
661            sb.append(" ");
662            sb.append(locale);
663        } else {
664            sb.append(" ?locale");
665        }
666        int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK);
667        switch (layoutDir) {
668            case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break;
669            case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break;
670            case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break;
671            default: sb.append(" layoutDir=");
672                sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break;
673        }
674        if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
675            sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp");
676        } else {
677            sb.append(" ?swdp");
678        }
679        if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
680            sb.append(" w"); sb.append(screenWidthDp); sb.append("dp");
681        } else {
682            sb.append(" ?wdp");
683        }
684        if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
685            sb.append(" h"); sb.append(screenHeightDp); sb.append("dp");
686        } else {
687            sb.append(" ?hdp");
688        }
689        if (densityDpi != DENSITY_DPI_UNDEFINED) {
690            sb.append(" "); sb.append(densityDpi); sb.append("dpi");
691        } else {
692            sb.append(" ?density");
693        }
694        switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) {
695            case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break;
696            case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break;
697            case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break;
698            case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break;
699            case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break;
700            default: sb.append(" layoutSize=");
701                    sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break;
702        }
703        switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) {
704            case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break;
705            case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break;
706            case SCREENLAYOUT_LONG_YES: sb.append(" long"); break;
707            default: sb.append(" layoutLong=");
708                    sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break;
709        }
710        switch (orientation) {
711            case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break;
712            case ORIENTATION_LANDSCAPE: sb.append(" land"); break;
713            case ORIENTATION_PORTRAIT: sb.append(" port"); break;
714            default: sb.append(" orien="); sb.append(orientation); break;
715        }
716        switch ((uiMode&UI_MODE_TYPE_MASK)) {
717            case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break;
718            case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break;
719            case UI_MODE_TYPE_DESK: sb.append(" desk"); break;
720            case UI_MODE_TYPE_CAR: sb.append(" car"); break;
721            case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break;
722            case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break;
723            case UI_MODE_TYPE_WATCH: sb.append(" watch"); break;
724            default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break;
725        }
726        switch ((uiMode&UI_MODE_NIGHT_MASK)) {
727            case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break;
728            case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break;
729            case UI_MODE_NIGHT_YES: sb.append(" night"); break;
730            default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break;
731        }
732        switch (touchscreen) {
733            case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break;
734            case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break;
735            case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break;
736            case TOUCHSCREEN_FINGER: sb.append(" finger"); break;
737            default: sb.append(" touch="); sb.append(touchscreen); break;
738        }
739        switch (keyboard) {
740            case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break;
741            case KEYBOARD_NOKEYS: sb.append(" -keyb"); break;
742            case KEYBOARD_QWERTY: sb.append(" qwerty"); break;
743            case KEYBOARD_12KEY: sb.append(" 12key"); break;
744            default: sb.append(" keys="); sb.append(keyboard); break;
745        }
746        switch (keyboardHidden) {
747            case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
748            case KEYBOARDHIDDEN_NO: sb.append("/v"); break;
749            case KEYBOARDHIDDEN_YES: sb.append("/h"); break;
750            case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break;
751            default: sb.append("/"); sb.append(keyboardHidden); break;
752        }
753        switch (hardKeyboardHidden) {
754            case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
755            case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break;
756            case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break;
757            default: sb.append("/"); sb.append(hardKeyboardHidden); break;
758        }
759        switch (navigation) {
760            case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break;
761            case NAVIGATION_NONAV: sb.append(" -nav"); break;
762            case NAVIGATION_DPAD: sb.append(" dpad"); break;
763            case NAVIGATION_TRACKBALL: sb.append(" tball"); break;
764            case NAVIGATION_WHEEL: sb.append(" wheel"); break;
765            default: sb.append(" nav="); sb.append(navigation); break;
766        }
767        switch (navigationHidden) {
768            case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break;
769            case NAVIGATIONHIDDEN_NO: sb.append("/v"); break;
770            case NAVIGATIONHIDDEN_YES: sb.append("/h"); break;
771            default: sb.append("/"); sb.append(navigationHidden); break;
772        }
773        if (seq != 0) {
774            sb.append(" s.");
775            sb.append(seq);
776        }
777        sb.append('}');
778        return sb.toString();
779    }
780
781    /**
782     * Set this object to the system defaults.
783     */
784    public void setToDefaults() {
785        fontScale = 1;
786        mcc = mnc = 0;
787        locale = null;
788        userSetLocale = false;
789        touchscreen = TOUCHSCREEN_UNDEFINED;
790        keyboard = KEYBOARD_UNDEFINED;
791        keyboardHidden = KEYBOARDHIDDEN_UNDEFINED;
792        hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED;
793        navigation = NAVIGATION_UNDEFINED;
794        navigationHidden = NAVIGATIONHIDDEN_UNDEFINED;
795        orientation = ORIENTATION_UNDEFINED;
796        screenLayout = SCREENLAYOUT_UNDEFINED;
797        uiMode = UI_MODE_TYPE_UNDEFINED;
798        screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED;
799        screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED;
800        smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
801        densityDpi = DENSITY_DPI_UNDEFINED;
802        seq = 0;
803    }
804
805    /** {@hide} */
806    @Deprecated public void makeDefault() {
807        setToDefaults();
808    }
809
810    /**
811     * Copy the fields from delta into this Configuration object, keeping
812     * track of which ones have changed.  Any undefined fields in
813     * <var>delta</var> are ignored and not copied in to the current
814     * Configuration.
815     * @return Returns a bit mask of the changed fields, as per
816     * {@link #diff}.
817     */
818    public int updateFrom(Configuration delta) {
819        int changed = 0;
820        if (delta.fontScale > 0 && fontScale != delta.fontScale) {
821            changed |= ActivityInfo.CONFIG_FONT_SCALE;
822            fontScale = delta.fontScale;
823        }
824        if (delta.mcc != 0 && mcc != delta.mcc) {
825            changed |= ActivityInfo.CONFIG_MCC;
826            mcc = delta.mcc;
827        }
828        if (delta.mnc != 0 && mnc != delta.mnc) {
829            changed |= ActivityInfo.CONFIG_MNC;
830            mnc = delta.mnc;
831        }
832        if (delta.locale != null
833                && (locale == null || !locale.equals(delta.locale))) {
834            changed |= ActivityInfo.CONFIG_LOCALE;
835            locale = delta.locale != null
836                    ? (Locale) delta.locale.clone() : null;
837            // If locale has changed, then layout direction is also changed ...
838            changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
839            // ... and we need to update the layout direction (represented by the first
840            // 2 most significant bits in screenLayout).
841            setLayoutDirection(locale);
842        }
843        final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK;
844        if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED &&
845                deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) {
846            screenLayout = (screenLayout & ~SCREENLAYOUT_LAYOUTDIR_MASK) | deltaScreenLayoutDir;
847            changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
848        }
849        if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0)))
850        {
851            changed |= ActivityInfo.CONFIG_LOCALE;
852            userSetLocale = true;
853        }
854        if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
855                && touchscreen != delta.touchscreen) {
856            changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
857            touchscreen = delta.touchscreen;
858        }
859        if (delta.keyboard != KEYBOARD_UNDEFINED
860                && keyboard != delta.keyboard) {
861            changed |= ActivityInfo.CONFIG_KEYBOARD;
862            keyboard = delta.keyboard;
863        }
864        if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
865                && keyboardHidden != delta.keyboardHidden) {
866            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
867            keyboardHidden = delta.keyboardHidden;
868        }
869        if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
870                && hardKeyboardHidden != delta.hardKeyboardHidden) {
871            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
872            hardKeyboardHidden = delta.hardKeyboardHidden;
873        }
874        if (delta.navigation != NAVIGATION_UNDEFINED
875                && navigation != delta.navigation) {
876            changed |= ActivityInfo.CONFIG_NAVIGATION;
877            navigation = delta.navigation;
878        }
879        if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
880                && navigationHidden != delta.navigationHidden) {
881            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
882            navigationHidden = delta.navigationHidden;
883        }
884        if (delta.orientation != ORIENTATION_UNDEFINED
885                && orientation != delta.orientation) {
886            changed |= ActivityInfo.CONFIG_ORIENTATION;
887            orientation = delta.orientation;
888        }
889        if (getScreenLayoutNoDirection(delta.screenLayout) !=
890                    (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
891                && (getScreenLayoutNoDirection(screenLayout) !=
892                    getScreenLayoutNoDirection(delta.screenLayout))) {
893            changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
894            // We need to preserve the previous layout dir bits if they were defined
895            if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) {
896                screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout;
897            } else {
898                screenLayout = delta.screenLayout;
899            }
900        }
901        if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
902                && uiMode != delta.uiMode) {
903            changed |= ActivityInfo.CONFIG_UI_MODE;
904            if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) {
905                uiMode = (uiMode&~UI_MODE_TYPE_MASK)
906                        | (delta.uiMode&UI_MODE_TYPE_MASK);
907            }
908            if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) {
909                uiMode = (uiMode&~UI_MODE_NIGHT_MASK)
910                        | (delta.uiMode&UI_MODE_NIGHT_MASK);
911            }
912        }
913        if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
914                && screenWidthDp != delta.screenWidthDp) {
915            changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
916            screenWidthDp = delta.screenWidthDp;
917        }
918        if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
919                && screenHeightDp != delta.screenHeightDp) {
920            changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
921            screenHeightDp = delta.screenHeightDp;
922        }
923        if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED
924                && smallestScreenWidthDp != delta.smallestScreenWidthDp) {
925            changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
926            smallestScreenWidthDp = delta.smallestScreenWidthDp;
927        }
928        if (delta.densityDpi != DENSITY_DPI_UNDEFINED &&
929                densityDpi != delta.densityDpi) {
930            changed |= ActivityInfo.CONFIG_DENSITY;
931            densityDpi = delta.densityDpi;
932        }
933        if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
934            compatScreenWidthDp = delta.compatScreenWidthDp;
935        }
936        if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
937            compatScreenHeightDp = delta.compatScreenHeightDp;
938        }
939        if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
940            compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp;
941        }
942        if (delta.seq != 0) {
943            seq = delta.seq;
944        }
945
946        return changed;
947    }
948
949    /**
950     * Return a bit mask of the differences between this Configuration
951     * object and the given one.  Does not change the values of either.  Any
952     * undefined fields in <var>delta</var> are ignored.
953     * @return Returns a bit mask indicating which configuration
954     * values has changed, containing any combination of
955     * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE
956     * PackageManager.ActivityInfo.CONFIG_FONT_SCALE},
957     * {@link android.content.pm.ActivityInfo#CONFIG_MCC
958     * PackageManager.ActivityInfo.CONFIG_MCC},
959     * {@link android.content.pm.ActivityInfo#CONFIG_MNC
960     * PackageManager.ActivityInfo.CONFIG_MNC},
961     * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE
962     * PackageManager.ActivityInfo.CONFIG_LOCALE},
963     * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN
964     * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN},
965     * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD
966     * PackageManager.ActivityInfo.CONFIG_KEYBOARD},
967     * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION
968     * PackageManager.ActivityInfo.CONFIG_NAVIGATION},
969     * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION
970     * PackageManager.ActivityInfo.CONFIG_ORIENTATION},
971     * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT
972     * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or
973     * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE
974     * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or
975     * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE
976     * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}.
977     * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION
978     * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}.
979     */
980    public int diff(Configuration delta) {
981        int changed = 0;
982        if (delta.fontScale > 0 && fontScale != delta.fontScale) {
983            changed |= ActivityInfo.CONFIG_FONT_SCALE;
984        }
985        if (delta.mcc != 0 && mcc != delta.mcc) {
986            changed |= ActivityInfo.CONFIG_MCC;
987        }
988        if (delta.mnc != 0 && mnc != delta.mnc) {
989            changed |= ActivityInfo.CONFIG_MNC;
990        }
991        if (delta.locale != null
992                && (locale == null || !locale.equals(delta.locale))) {
993            changed |= ActivityInfo.CONFIG_LOCALE;
994            changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
995        }
996        final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK;
997        if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED &&
998                deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) {
999            changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
1000        }
1001        if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
1002                && touchscreen != delta.touchscreen) {
1003            changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
1004        }
1005        if (delta.keyboard != KEYBOARD_UNDEFINED
1006                && keyboard != delta.keyboard) {
1007            changed |= ActivityInfo.CONFIG_KEYBOARD;
1008        }
1009        if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
1010                && keyboardHidden != delta.keyboardHidden) {
1011            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1012        }
1013        if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
1014                && hardKeyboardHidden != delta.hardKeyboardHidden) {
1015            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1016        }
1017        if (delta.navigation != NAVIGATION_UNDEFINED
1018                && navigation != delta.navigation) {
1019            changed |= ActivityInfo.CONFIG_NAVIGATION;
1020        }
1021        if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
1022                && navigationHidden != delta.navigationHidden) {
1023            changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1024        }
1025        if (delta.orientation != ORIENTATION_UNDEFINED
1026                && orientation != delta.orientation) {
1027            changed |= ActivityInfo.CONFIG_ORIENTATION;
1028        }
1029        if (getScreenLayoutNoDirection(delta.screenLayout) !=
1030                    (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
1031                && getScreenLayoutNoDirection(screenLayout) !=
1032                    getScreenLayoutNoDirection(delta.screenLayout)) {
1033            changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
1034        }
1035        if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
1036                && uiMode != delta.uiMode) {
1037            changed |= ActivityInfo.CONFIG_UI_MODE;
1038        }
1039        if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
1040                && screenWidthDp != delta.screenWidthDp) {
1041            changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1042        }
1043        if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
1044                && screenHeightDp != delta.screenHeightDp) {
1045            changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1046        }
1047        if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED
1048                && smallestScreenWidthDp != delta.smallestScreenWidthDp) {
1049            changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
1050        }
1051        if (delta.densityDpi != DENSITY_DPI_UNDEFINED
1052                && densityDpi != delta.densityDpi) {
1053            changed |= ActivityInfo.CONFIG_DENSITY;
1054        }
1055
1056        return changed;
1057    }
1058
1059    /**
1060     * Determine if a new resource needs to be loaded from the bit set of
1061     * configuration changes returned by {@link #updateFrom(Configuration)}.
1062     *
1063     * @param configChanges The mask of changes configurations as returned by
1064     * {@link #updateFrom(Configuration)}.
1065     * @param interestingChanges The configuration changes that the resource
1066     * can handled, as given in {@link android.util.TypedValue#changingConfigurations}.
1067     *
1068     * @return Return true if the resource needs to be loaded, else false.
1069     */
1070    public static boolean needNewResources(int configChanges, int interestingChanges) {
1071        return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0;
1072    }
1073
1074    /**
1075     * @hide Return true if the sequence of 'other' is better than this.  Assumes
1076     * that 'this' is your current sequence and 'other' is a new one you have
1077     * received some how and want to compare with what you have.
1078     */
1079    public boolean isOtherSeqNewer(Configuration other) {
1080        if (other == null) {
1081            // Sanity check.
1082            return false;
1083        }
1084        if (other.seq == 0) {
1085            // If the other sequence is not specified, then we must assume
1086            // it is newer since we don't know any better.
1087            return true;
1088        }
1089        if (seq == 0) {
1090            // If this sequence is not specified, then we also consider the
1091            // other is better.  Yes we have a preference for other.  Sue us.
1092            return true;
1093        }
1094        int diff = other.seq - seq;
1095        if (diff > 0x10000) {
1096            // If there has been a sufficiently large jump, assume the
1097            // sequence has wrapped around.
1098            return false;
1099        }
1100        return diff > 0;
1101    }
1102
1103    /**
1104     * Parcelable methods
1105     */
1106    public int describeContents() {
1107        return 0;
1108    }
1109
1110    public void writeToParcel(Parcel dest, int flags) {
1111        dest.writeFloat(fontScale);
1112        dest.writeInt(mcc);
1113        dest.writeInt(mnc);
1114        if (locale == null) {
1115            dest.writeInt(0);
1116        } else {
1117            dest.writeInt(1);
1118            dest.writeString(locale.getLanguage());
1119            dest.writeString(locale.getCountry());
1120            dest.writeString(locale.getVariant());
1121        }
1122        if(userSetLocale) {
1123            dest.writeInt(1);
1124        } else {
1125            dest.writeInt(0);
1126        }
1127        dest.writeInt(touchscreen);
1128        dest.writeInt(keyboard);
1129        dest.writeInt(keyboardHidden);
1130        dest.writeInt(hardKeyboardHidden);
1131        dest.writeInt(navigation);
1132        dest.writeInt(navigationHidden);
1133        dest.writeInt(orientation);
1134        dest.writeInt(screenLayout);
1135        dest.writeInt(uiMode);
1136        dest.writeInt(screenWidthDp);
1137        dest.writeInt(screenHeightDp);
1138        dest.writeInt(smallestScreenWidthDp);
1139        dest.writeInt(densityDpi);
1140        dest.writeInt(compatScreenWidthDp);
1141        dest.writeInt(compatScreenHeightDp);
1142        dest.writeInt(compatSmallestScreenWidthDp);
1143        dest.writeInt(seq);
1144    }
1145
1146    public void readFromParcel(Parcel source) {
1147        fontScale = source.readFloat();
1148        mcc = source.readInt();
1149        mnc = source.readInt();
1150        if (source.readInt() != 0) {
1151            locale = new Locale(source.readString(), source.readString(),
1152                    source.readString());
1153        }
1154        userSetLocale = (source.readInt()==1);
1155        touchscreen = source.readInt();
1156        keyboard = source.readInt();
1157        keyboardHidden = source.readInt();
1158        hardKeyboardHidden = source.readInt();
1159        navigation = source.readInt();
1160        navigationHidden = source.readInt();
1161        orientation = source.readInt();
1162        screenLayout = source.readInt();
1163        uiMode = source.readInt();
1164        screenWidthDp = source.readInt();
1165        screenHeightDp = source.readInt();
1166        smallestScreenWidthDp = source.readInt();
1167        densityDpi = source.readInt();
1168        compatScreenWidthDp = source.readInt();
1169        compatScreenHeightDp = source.readInt();
1170        compatSmallestScreenWidthDp = source.readInt();
1171        seq = source.readInt();
1172    }
1173
1174    public static final Parcelable.Creator<Configuration> CREATOR
1175            = new Parcelable.Creator<Configuration>() {
1176        public Configuration createFromParcel(Parcel source) {
1177            return new Configuration(source);
1178        }
1179
1180        public Configuration[] newArray(int size) {
1181            return new Configuration[size];
1182        }
1183    };
1184
1185    /**
1186     * Construct this Configuration object, reading from the Parcel.
1187     */
1188    private Configuration(Parcel source) {
1189        readFromParcel(source);
1190    }
1191
1192    public int compareTo(Configuration that) {
1193        int n;
1194        float a = this.fontScale;
1195        float b = that.fontScale;
1196        if (a < b) return -1;
1197        if (a > b) return 1;
1198        n = this.mcc - that.mcc;
1199        if (n != 0) return n;
1200        n = this.mnc - that.mnc;
1201        if (n != 0) return n;
1202        if (this.locale == null) {
1203            if (that.locale != null) return 1;
1204        } else if (that.locale == null) {
1205            return -1;
1206        } else {
1207            n = this.locale.getLanguage().compareTo(that.locale.getLanguage());
1208            if (n != 0) return n;
1209            n = this.locale.getCountry().compareTo(that.locale.getCountry());
1210            if (n != 0) return n;
1211            n = this.locale.getVariant().compareTo(that.locale.getVariant());
1212            if (n != 0) return n;
1213        }
1214        n = this.touchscreen - that.touchscreen;
1215        if (n != 0) return n;
1216        n = this.keyboard - that.keyboard;
1217        if (n != 0) return n;
1218        n = this.keyboardHidden - that.keyboardHidden;
1219        if (n != 0) return n;
1220        n = this.hardKeyboardHidden - that.hardKeyboardHidden;
1221        if (n != 0) return n;
1222        n = this.navigation - that.navigation;
1223        if (n != 0) return n;
1224        n = this.navigationHidden - that.navigationHidden;
1225        if (n != 0) return n;
1226        n = this.orientation - that.orientation;
1227        if (n != 0) return n;
1228        n = this.screenLayout - that.screenLayout;
1229        if (n != 0) return n;
1230        n = this.uiMode - that.uiMode;
1231        if (n != 0) return n;
1232        n = this.screenWidthDp - that.screenWidthDp;
1233        if (n != 0) return n;
1234        n = this.screenHeightDp - that.screenHeightDp;
1235        if (n != 0) return n;
1236        n = this.smallestScreenWidthDp - that.smallestScreenWidthDp;
1237        if (n != 0) return n;
1238        n = this.densityDpi - that.densityDpi;
1239        //if (n != 0) return n;
1240        return n;
1241    }
1242
1243    public boolean equals(Configuration that) {
1244        if (that == null) return false;
1245        if (that == this) return true;
1246        return this.compareTo(that) == 0;
1247    }
1248
1249    public boolean equals(Object that) {
1250        try {
1251            return equals((Configuration)that);
1252        } catch (ClassCastException e) {
1253        }
1254        return false;
1255    }
1256
1257    public int hashCode() {
1258        int result = 17;
1259        result = 31 * result + Float.floatToIntBits(fontScale);
1260        result = 31 * result + mcc;
1261        result = 31 * result + mnc;
1262        result = 31 * result + (locale != null ? locale.hashCode() : 0);
1263        result = 31 * result + touchscreen;
1264        result = 31 * result + keyboard;
1265        result = 31 * result + keyboardHidden;
1266        result = 31 * result + hardKeyboardHidden;
1267        result = 31 * result + navigation;
1268        result = 31 * result + navigationHidden;
1269        result = 31 * result + orientation;
1270        result = 31 * result + screenLayout;
1271        result = 31 * result + uiMode;
1272        result = 31 * result + screenWidthDp;
1273        result = 31 * result + screenHeightDp;
1274        result = 31 * result + smallestScreenWidthDp;
1275        result = 31 * result + densityDpi;
1276        return result;
1277    }
1278
1279    /**
1280     * Set the locale. This is the preferred way for setting up the locale (instead of using the
1281     * direct accessor). This will also set the userLocale and layout direction according to
1282     * the locale.
1283     *
1284     * @param loc The locale. Can be null.
1285     */
1286    public void setLocale(Locale loc) {
1287        locale = loc;
1288        userSetLocale = true;
1289        setLayoutDirection(locale);
1290    }
1291
1292    /**
1293     * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or
1294     * {@link View#LAYOUT_DIRECTION_RTL}.
1295     *
1296     * @return Returns {@link View#LAYOUT_DIRECTION_RTL} if the configuration
1297     * is {@link #SCREENLAYOUT_LAYOUTDIR_RTL}, otherwise {@link View#LAYOUT_DIRECTION_LTR}.
1298     */
1299    public int getLayoutDirection() {
1300        return (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == SCREENLAYOUT_LAYOUTDIR_RTL
1301                ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR;
1302    }
1303
1304    /**
1305     * Set the layout direction from the Locale.
1306     *
1307     * @param locale The Locale. If null will set the layout direction to
1308     * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction
1309     * corresponding to the Locale.
1310     *
1311     * @see {@link View#LAYOUT_DIRECTION_LTR} and {@link View#LAYOUT_DIRECTION_RTL}
1312     */
1313    public void setLayoutDirection(Locale locale) {
1314        // There is a "1" difference between the configuration values for
1315        // layout direction and View constants for layout direction, just add "1".
1316        final int layoutDirection = 1 + TextUtils.getLayoutDirectionFromLocale(locale);
1317        screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)|
1318                (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT);
1319    }
1320
1321    private static int getScreenLayoutNoDirection(int screenLayout) {
1322        return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK;
1323    }
1324
1325    /**
1326     *
1327     * @hide
1328     */
1329    public static String localeToResourceQualifier(Locale locale) {
1330        StringBuilder sb = new StringBuilder();
1331        boolean l = (locale.getLanguage().length() != 0);
1332        boolean c = (locale.getCountry().length() != 0);
1333        boolean s = (locale.getScript().length() != 0);
1334        boolean v = (locale.getVariant().length() != 0);
1335
1336        if (l) {
1337            sb.append(locale.getLanguage());
1338            if (c) {
1339                sb.append("-r").append(locale.getCountry());
1340                if (s) {
1341                    sb.append("-s").append(locale.getScript());
1342                    if (v) {
1343                        sb.append("-v").append(locale.getVariant());
1344                    }
1345                }
1346            }
1347        }
1348        return sb.toString();
1349    }
1350
1351
1352    /**
1353     * Returns a string representation of the configuration that can be parsed
1354     * by build tools (like AAPT).
1355     *
1356     *
1357     *
1358     * @hide
1359     */
1360    public static String resourceQualifierString(Configuration config) {
1361        ArrayList<String> parts = new ArrayList<String>();
1362
1363        if (config.mcc != 0) {
1364            parts.add(config.mcc + "mcc");
1365            if (config.mnc != 0) {
1366                parts.add(config.mnc + "mnc");
1367            }
1368        }
1369
1370        if (!config.locale.getLanguage().isEmpty()) {
1371            parts.add(localeToResourceQualifier(config.locale));
1372        }
1373
1374        switch (config.screenLayout & Configuration.SCREENLAYOUT_LAYOUTDIR_MASK) {
1375            case Configuration.SCREENLAYOUT_LAYOUTDIR_LTR:
1376                parts.add("ldltr");
1377                break;
1378            case Configuration.SCREENLAYOUT_LAYOUTDIR_RTL:
1379                parts.add("ldrtl");
1380                break;
1381            default:
1382                break;
1383        }
1384
1385        if (config.smallestScreenWidthDp != 0) {
1386            parts.add("sw" + config.smallestScreenWidthDp + "dp");
1387        }
1388
1389        if (config.screenWidthDp != 0) {
1390            parts.add("w" + config.screenWidthDp + "dp");
1391        }
1392
1393        if (config.screenHeightDp != 0) {
1394            parts.add("h" + config.screenHeightDp + "dp");
1395        }
1396
1397        switch (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) {
1398            case Configuration.SCREENLAYOUT_SIZE_SMALL:
1399                parts.add("small");
1400                break;
1401            case Configuration.SCREENLAYOUT_SIZE_NORMAL:
1402                parts.add("normal");
1403                break;
1404            case Configuration.SCREENLAYOUT_SIZE_LARGE:
1405                parts.add("large");
1406                break;
1407            case Configuration.SCREENLAYOUT_SIZE_XLARGE:
1408                parts.add("xlarge");
1409                break;
1410            default:
1411                break;
1412        }
1413
1414        switch (config.screenLayout & Configuration.SCREENLAYOUT_LONG_MASK) {
1415            case Configuration.SCREENLAYOUT_LONG_YES:
1416                parts.add("long");
1417                break;
1418            case Configuration.SCREENLAYOUT_LONG_NO:
1419                parts.add("notlong");
1420                break;
1421            default:
1422                break;
1423        }
1424
1425        switch (config.orientation) {
1426            case Configuration.ORIENTATION_LANDSCAPE:
1427                parts.add("land");
1428                break;
1429            case Configuration.ORIENTATION_PORTRAIT:
1430                parts.add("port");
1431                break;
1432            default:
1433                break;
1434        }
1435
1436        switch (config.uiMode & Configuration.UI_MODE_TYPE_MASK) {
1437            case Configuration.UI_MODE_TYPE_APPLIANCE:
1438                parts.add("appliance");
1439                break;
1440            case Configuration.UI_MODE_TYPE_DESK:
1441                parts.add("desk");
1442                break;
1443            case Configuration.UI_MODE_TYPE_TELEVISION:
1444                parts.add("television");
1445                break;
1446            case Configuration.UI_MODE_TYPE_CAR:
1447                parts.add("car");
1448                break;
1449            case Configuration.UI_MODE_TYPE_WATCH:
1450                parts.add("watch");
1451                break;
1452            default:
1453                break;
1454        }
1455
1456        switch (config.uiMode & Configuration.UI_MODE_NIGHT_MASK) {
1457            case Configuration.UI_MODE_NIGHT_YES:
1458                parts.add("night");
1459                break;
1460            case Configuration.UI_MODE_NIGHT_NO:
1461                parts.add("notnight");
1462                break;
1463            default:
1464                break;
1465        }
1466
1467        switch (config.densityDpi) {
1468            case DENSITY_DPI_UNDEFINED:
1469                break;
1470            case 120:
1471                parts.add("ldpi");
1472                break;
1473            case 160:
1474                parts.add("mdpi");
1475                break;
1476            case 213:
1477                parts.add("tvdpi");
1478                break;
1479            case 240:
1480                parts.add("hdpi");
1481                break;
1482            case 320:
1483                parts.add("xhdpi");
1484                break;
1485            case 480:
1486                parts.add("xxhdpi");
1487                break;
1488            case 640:
1489                parts.add("xxxhdpi");
1490                break;
1491            case DENSITY_DPI_ANY:
1492                parts.add("anydpi");
1493                break;
1494            case DENSITY_DPI_NONE:
1495                parts.add("nodpi");
1496            default:
1497                parts.add(config.densityDpi + "dpi");
1498                break;
1499        }
1500
1501        switch (config.touchscreen) {
1502            case Configuration.TOUCHSCREEN_NOTOUCH:
1503                parts.add("notouch");
1504                break;
1505            case Configuration.TOUCHSCREEN_FINGER:
1506                parts.add("finger");
1507                break;
1508            default:
1509                break;
1510        }
1511
1512        switch (config.keyboardHidden) {
1513            case Configuration.KEYBOARDHIDDEN_NO:
1514                parts.add("keysexposed");
1515                break;
1516            case Configuration.KEYBOARDHIDDEN_YES:
1517                parts.add("keyshidden");
1518                break;
1519            case Configuration.KEYBOARDHIDDEN_SOFT:
1520                parts.add("keyssoft");
1521                break;
1522            default:
1523                break;
1524        }
1525
1526        switch (config.keyboard) {
1527            case Configuration.KEYBOARD_NOKEYS:
1528                parts.add("nokeys");
1529                break;
1530            case Configuration.KEYBOARD_QWERTY:
1531                parts.add("qwerty");
1532                break;
1533            case Configuration.KEYBOARD_12KEY:
1534                parts.add("12key");
1535                break;
1536            default:
1537                break;
1538        }
1539
1540        switch (config.navigationHidden) {
1541            case Configuration.NAVIGATIONHIDDEN_NO:
1542                parts.add("navexposed");
1543                break;
1544            case Configuration.NAVIGATIONHIDDEN_YES:
1545                parts.add("navhidden");
1546                break;
1547            default:
1548                break;
1549        }
1550
1551        switch (config.navigation) {
1552            case Configuration.NAVIGATION_NONAV:
1553                parts.add("nonav");
1554                break;
1555            case Configuration.NAVIGATION_DPAD:
1556                parts.add("dpad");
1557                break;
1558            case Configuration.NAVIGATION_TRACKBALL:
1559                parts.add("trackball");
1560                break;
1561            case Configuration.NAVIGATION_WHEEL:
1562                parts.add("wheel");
1563                break;
1564            default:
1565                break;
1566        }
1567
1568        parts.add("v" + Build.VERSION.RESOURCES_SDK_INT);
1569        return TextUtils.join("-", parts);
1570    }
1571}
1572