1/*
2 * Copyright (C) 2006 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.view;
18
19import android.app.Presentation;
20import android.content.Context;
21import android.content.pm.ActivityInfo;
22import android.graphics.PixelFormat;
23import android.os.IBinder;
24import android.os.Parcel;
25import android.os.Parcelable;
26import android.text.TextUtils;
27import android.util.Log;
28
29
30/**
31 * The interface that apps use to talk to the window manager.
32 * <p>
33 * Use <code>Context.getSystemService(Context.WINDOW_SERVICE)</code> to get one of these.
34 * </p><p>
35 * Each window manager instance is bound to a particular {@link Display}.
36 * To obtain a {@link WindowManager} for a different display, use
37 * {@link Context#createDisplayContext} to obtain a {@link Context} for that
38 * display, then use <code>Context.getSystemService(Context.WINDOW_SERVICE)</code>
39 * to get the WindowManager.
40 * </p><p>
41 * The simplest way to show a window on another display is to create a
42 * {@link Presentation}.  The presentation will automatically obtain a
43 * {@link WindowManager} and {@link Context} for that display.
44 * </p>
45 *
46 * @see android.content.Context#getSystemService
47 * @see android.content.Context#WINDOW_SERVICE
48 */
49public interface WindowManager extends ViewManager {
50    /**
51     * Exception that is thrown when trying to add view whose
52     * {@link WindowManager.LayoutParams} {@link WindowManager.LayoutParams#token}
53     * is invalid.
54     */
55    public static class BadTokenException extends RuntimeException {
56        public BadTokenException() {
57        }
58
59        public BadTokenException(String name) {
60            super(name);
61        }
62    }
63
64    /**
65     * Exception that is thrown when calling {@link #addView} to a secondary display that cannot
66     * be found. See {@link android.app.Presentation} for more information on secondary displays.
67     */
68    public static class InvalidDisplayException extends RuntimeException {
69        public InvalidDisplayException() {
70        }
71
72        public InvalidDisplayException(String name) {
73            super(name);
74        }
75    }
76
77    /**
78     * Returns the {@link Display} upon which this {@link WindowManager} instance
79     * will create new windows.
80     * <p>
81     * Despite the name of this method, the display that is returned is not
82     * necessarily the primary display of the system (see {@link Display#DEFAULT_DISPLAY}).
83     * The returned display could instead be a secondary display that this
84     * window manager instance is managing.  Think of it as the display that
85     * this {@link WindowManager} instance uses by default.
86     * </p><p>
87     * To create windows on a different display, you need to obtain a
88     * {@link WindowManager} for that {@link Display}.  (See the {@link WindowManager}
89     * class documentation for more information.)
90     * </p>
91     *
92     * @return The display that this window manager is managing.
93     */
94    public Display getDefaultDisplay();
95
96    /**
97     * Special variation of {@link #removeView} that immediately invokes
98     * the given view hierarchy's {@link View#onDetachedFromWindow()
99     * View.onDetachedFromWindow()} methods before returning.  This is not
100     * for normal applications; using it correctly requires great care.
101     *
102     * @param view The view to be removed.
103     */
104    public void removeViewImmediate(View view);
105
106    public static class LayoutParams extends ViewGroup.LayoutParams
107            implements Parcelable {
108        /**
109         * X position for this window.  With the default gravity it is ignored.
110         * When using {@link Gravity#LEFT} or {@link Gravity#START} or {@link Gravity#RIGHT} or
111         * {@link Gravity#END} it provides an offset from the given edge.
112         */
113        @ViewDebug.ExportedProperty
114        public int x;
115
116        /**
117         * Y position for this window.  With the default gravity it is ignored.
118         * When using {@link Gravity#TOP} or {@link Gravity#BOTTOM} it provides
119         * an offset from the given edge.
120         */
121        @ViewDebug.ExportedProperty
122        public int y;
123
124        /**
125         * Indicates how much of the extra space will be allocated horizontally
126         * to the view associated with these LayoutParams. Specify 0 if the view
127         * should not be stretched. Otherwise the extra pixels will be pro-rated
128         * among all views whose weight is greater than 0.
129         */
130        @ViewDebug.ExportedProperty
131        public float horizontalWeight;
132
133        /**
134         * Indicates how much of the extra space will be allocated vertically
135         * to the view associated with these LayoutParams. Specify 0 if the view
136         * should not be stretched. Otherwise the extra pixels will be pro-rated
137         * among all views whose weight is greater than 0.
138         */
139        @ViewDebug.ExportedProperty
140        public float verticalWeight;
141
142        /**
143         * The general type of window.  There are three main classes of
144         * window types:
145         * <ul>
146         * <li> <strong>Application windows</strong> (ranging from
147         * {@link #FIRST_APPLICATION_WINDOW} to
148         * {@link #LAST_APPLICATION_WINDOW}) are normal top-level application
149         * windows.  For these types of windows, the {@link #token} must be
150         * set to the token of the activity they are a part of (this will
151         * normally be done for you if {@link #token} is null).
152         * <li> <strong>Sub-windows</strong> (ranging from
153         * {@link #FIRST_SUB_WINDOW} to
154         * {@link #LAST_SUB_WINDOW}) are associated with another top-level
155         * window.  For these types of windows, the {@link #token} must be
156         * the token of the window it is attached to.
157         * <li> <strong>System windows</strong> (ranging from
158         * {@link #FIRST_SYSTEM_WINDOW} to
159         * {@link #LAST_SYSTEM_WINDOW}) are special types of windows for
160         * use by the system for specific purposes.  They should not normally
161         * be used by applications, and a special permission is required
162         * to use them.
163         * </ul>
164         *
165         * @see #TYPE_BASE_APPLICATION
166         * @see #TYPE_APPLICATION
167         * @see #TYPE_APPLICATION_STARTING
168         * @see #TYPE_APPLICATION_PANEL
169         * @see #TYPE_APPLICATION_MEDIA
170         * @see #TYPE_APPLICATION_SUB_PANEL
171         * @see #TYPE_APPLICATION_ATTACHED_DIALOG
172         * @see #TYPE_STATUS_BAR
173         * @see #TYPE_SEARCH_BAR
174         * @see #TYPE_PHONE
175         * @see #TYPE_SYSTEM_ALERT
176         * @see #TYPE_KEYGUARD
177         * @see #TYPE_TOAST
178         * @see #TYPE_SYSTEM_OVERLAY
179         * @see #TYPE_PRIORITY_PHONE
180         * @see #TYPE_STATUS_BAR_PANEL
181         * @see #TYPE_SYSTEM_DIALOG
182         * @see #TYPE_KEYGUARD_DIALOG
183         * @see #TYPE_SYSTEM_ERROR
184         * @see #TYPE_INPUT_METHOD
185         * @see #TYPE_INPUT_METHOD_DIALOG
186         */
187        @ViewDebug.ExportedProperty(mapping = {
188            @ViewDebug.IntToString(from = TYPE_BASE_APPLICATION, to = "TYPE_BASE_APPLICATION"),
189            @ViewDebug.IntToString(from = TYPE_APPLICATION, to = "TYPE_APPLICATION"),
190            @ViewDebug.IntToString(from = TYPE_APPLICATION_STARTING, to = "TYPE_APPLICATION_STARTING"),
191            @ViewDebug.IntToString(from = TYPE_APPLICATION_PANEL, to = "TYPE_APPLICATION_PANEL"),
192            @ViewDebug.IntToString(from = TYPE_APPLICATION_MEDIA, to = "TYPE_APPLICATION_MEDIA"),
193            @ViewDebug.IntToString(from = TYPE_APPLICATION_SUB_PANEL, to = "TYPE_APPLICATION_SUB_PANEL"),
194            @ViewDebug.IntToString(from = TYPE_APPLICATION_ATTACHED_DIALOG, to = "TYPE_APPLICATION_ATTACHED_DIALOG"),
195            @ViewDebug.IntToString(from = TYPE_APPLICATION_MEDIA_OVERLAY, to = "TYPE_APPLICATION_MEDIA_OVERLAY"),
196            @ViewDebug.IntToString(from = TYPE_STATUS_BAR, to = "TYPE_STATUS_BAR"),
197            @ViewDebug.IntToString(from = TYPE_SEARCH_BAR, to = "TYPE_SEARCH_BAR"),
198            @ViewDebug.IntToString(from = TYPE_PHONE, to = "TYPE_PHONE"),
199            @ViewDebug.IntToString(from = TYPE_SYSTEM_ALERT, to = "TYPE_SYSTEM_ALERT"),
200            @ViewDebug.IntToString(from = TYPE_KEYGUARD, to = "TYPE_KEYGUARD"),
201            @ViewDebug.IntToString(from = TYPE_TOAST, to = "TYPE_TOAST"),
202            @ViewDebug.IntToString(from = TYPE_SYSTEM_OVERLAY, to = "TYPE_SYSTEM_OVERLAY"),
203            @ViewDebug.IntToString(from = TYPE_PRIORITY_PHONE, to = "TYPE_PRIORITY_PHONE"),
204            @ViewDebug.IntToString(from = TYPE_SYSTEM_DIALOG, to = "TYPE_SYSTEM_DIALOG"),
205            @ViewDebug.IntToString(from = TYPE_KEYGUARD_DIALOG, to = "TYPE_KEYGUARD_DIALOG"),
206            @ViewDebug.IntToString(from = TYPE_SYSTEM_ERROR, to = "TYPE_SYSTEM_ERROR"),
207            @ViewDebug.IntToString(from = TYPE_INPUT_METHOD, to = "TYPE_INPUT_METHOD"),
208            @ViewDebug.IntToString(from = TYPE_INPUT_METHOD_DIALOG, to = "TYPE_INPUT_METHOD_DIALOG"),
209            @ViewDebug.IntToString(from = TYPE_WALLPAPER, to = "TYPE_WALLPAPER"),
210            @ViewDebug.IntToString(from = TYPE_STATUS_BAR_PANEL, to = "TYPE_STATUS_BAR_PANEL"),
211            @ViewDebug.IntToString(from = TYPE_SECURE_SYSTEM_OVERLAY, to = "TYPE_SECURE_SYSTEM_OVERLAY"),
212            @ViewDebug.IntToString(from = TYPE_DRAG, to = "TYPE_DRAG"),
213            @ViewDebug.IntToString(from = TYPE_STATUS_BAR_SUB_PANEL, to = "TYPE_STATUS_BAR_SUB_PANEL"),
214            @ViewDebug.IntToString(from = TYPE_POINTER, to = "TYPE_POINTER"),
215            @ViewDebug.IntToString(from = TYPE_NAVIGATION_BAR, to = "TYPE_NAVIGATION_BAR"),
216            @ViewDebug.IntToString(from = TYPE_VOLUME_OVERLAY, to = "TYPE_VOLUME_OVERLAY"),
217            @ViewDebug.IntToString(from = TYPE_BOOT_PROGRESS, to = "TYPE_BOOT_PROGRESS"),
218            @ViewDebug.IntToString(from = TYPE_HIDDEN_NAV_CONSUMER, to = "TYPE_HIDDEN_NAV_CONSUMER"),
219            @ViewDebug.IntToString(from = TYPE_DREAM, to = "TYPE_DREAM"),
220            @ViewDebug.IntToString(from = TYPE_NAVIGATION_BAR_PANEL, to = "TYPE_NAVIGATION_BAR_PANEL"),
221            @ViewDebug.IntToString(from = TYPE_DISPLAY_OVERLAY, to = "TYPE_DISPLAY_OVERLAY"),
222            @ViewDebug.IntToString(from = TYPE_MAGNIFICATION_OVERLAY, to = "TYPE_MAGNIFICATION_OVERLAY")
223        })
224        public int type;
225
226        /**
227         * Start of window types that represent normal application windows.
228         */
229        public static final int FIRST_APPLICATION_WINDOW = 1;
230
231        /**
232         * Window type: an application window that serves as the "base" window
233         * of the overall application; all other application windows will
234         * appear on top of it.
235         * In multiuser systems shows only on the owning user's window.
236         */
237        public static final int TYPE_BASE_APPLICATION   = 1;
238
239        /**
240         * Window type: a normal application window.  The {@link #token} must be
241         * an Activity token identifying who the window belongs to.
242         * In multiuser systems shows only on the owning user's window.
243         */
244        public static final int TYPE_APPLICATION        = 2;
245
246        /**
247         * Window type: special application window that is displayed while the
248         * application is starting.  Not for use by applications themselves;
249         * this is used by the system to display something until the
250         * application can show its own windows.
251         * In multiuser systems shows on all users' windows.
252         */
253        public static final int TYPE_APPLICATION_STARTING = 3;
254
255        /**
256         * End of types of application windows.
257         */
258        public static final int LAST_APPLICATION_WINDOW = 99;
259
260        /**
261         * Start of types of sub-windows.  The {@link #token} of these windows
262         * must be set to the window they are attached to.  These types of
263         * windows are kept next to their attached window in Z-order, and their
264         * coordinate space is relative to their attached window.
265         */
266        public static final int FIRST_SUB_WINDOW        = 1000;
267
268        /**
269         * Window type: a panel on top of an application window.  These windows
270         * appear on top of their attached window.
271         */
272        public static final int TYPE_APPLICATION_PANEL  = FIRST_SUB_WINDOW;
273
274        /**
275         * Window type: window for showing media (such as video).  These windows
276         * are displayed behind their attached window.
277         */
278        public static final int TYPE_APPLICATION_MEDIA  = FIRST_SUB_WINDOW+1;
279
280        /**
281         * Window type: a sub-panel on top of an application window.  These
282         * windows are displayed on top their attached window and any
283         * {@link #TYPE_APPLICATION_PANEL} panels.
284         */
285        public static final int TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW+2;
286
287        /** Window type: like {@link #TYPE_APPLICATION_PANEL}, but layout
288         * of the window happens as that of a top-level window, <em>not</em>
289         * as a child of its container.
290         */
291        public static final int TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW+3;
292
293        /**
294         * Window type: window for showing overlays on top of media windows.
295         * These windows are displayed between TYPE_APPLICATION_MEDIA and the
296         * application window.  They should be translucent to be useful.  This
297         * is a big ugly hack so:
298         * @hide
299         */
300        public static final int TYPE_APPLICATION_MEDIA_OVERLAY  = FIRST_SUB_WINDOW+4;
301
302        /**
303         * End of types of sub-windows.
304         */
305        public static final int LAST_SUB_WINDOW         = 1999;
306
307        /**
308         * Start of system-specific window types.  These are not normally
309         * created by applications.
310         */
311        public static final int FIRST_SYSTEM_WINDOW     = 2000;
312
313        /**
314         * Window type: the status bar.  There can be only one status bar
315         * window; it is placed at the top of the screen, and all other
316         * windows are shifted down so they are below it.
317         * In multiuser systems shows on all users' windows.
318         */
319        public static final int TYPE_STATUS_BAR         = FIRST_SYSTEM_WINDOW;
320
321        /**
322         * Window type: the search bar.  There can be only one search bar
323         * window; it is placed at the top of the screen.
324         * In multiuser systems shows on all users' windows.
325         */
326        public static final int TYPE_SEARCH_BAR         = FIRST_SYSTEM_WINDOW+1;
327
328        /**
329         * Window type: phone.  These are non-application windows providing
330         * user interaction with the phone (in particular incoming calls).
331         * These windows are normally placed above all applications, but behind
332         * the status bar.
333         * In multiuser systems shows on all users' windows.
334         */
335        public static final int TYPE_PHONE              = FIRST_SYSTEM_WINDOW+2;
336
337        /**
338         * Window type: system window, such as low power alert. These windows
339         * are always on top of application windows.
340         * In multiuser systems shows only on the owning user's window.
341         */
342        public static final int TYPE_SYSTEM_ALERT       = FIRST_SYSTEM_WINDOW+3;
343
344        /**
345         * Window type: keyguard window.
346         * In multiuser systems shows on all users' windows.
347         */
348        public static final int TYPE_KEYGUARD           = FIRST_SYSTEM_WINDOW+4;
349
350        /**
351         * Window type: transient notifications.
352         * In multiuser systems shows only on the owning user's window.
353         */
354        public static final int TYPE_TOAST              = FIRST_SYSTEM_WINDOW+5;
355
356        /**
357         * Window type: system overlay windows, which need to be displayed
358         * on top of everything else.  These windows must not take input
359         * focus, or they will interfere with the keyguard.
360         * In multiuser systems shows only on the owning user's window.
361         */
362        public static final int TYPE_SYSTEM_OVERLAY     = FIRST_SYSTEM_WINDOW+6;
363
364        /**
365         * Window type: priority phone UI, which needs to be displayed even if
366         * the keyguard is active.  These windows must not take input
367         * focus, or they will interfere with the keyguard.
368         * In multiuser systems shows on all users' windows.
369         */
370        public static final int TYPE_PRIORITY_PHONE     = FIRST_SYSTEM_WINDOW+7;
371
372        /**
373         * Window type: panel that slides out from the status bar
374         * In multiuser systems shows on all users' windows.
375         */
376        public static final int TYPE_SYSTEM_DIALOG      = FIRST_SYSTEM_WINDOW+8;
377
378        /**
379         * Window type: dialogs that the keyguard shows
380         * In multiuser systems shows on all users' windows.
381         */
382        public static final int TYPE_KEYGUARD_DIALOG    = FIRST_SYSTEM_WINDOW+9;
383
384        /**
385         * Window type: internal system error windows, appear on top of
386         * everything they can.
387         * In multiuser systems shows only on the owning user's window.
388         */
389        public static final int TYPE_SYSTEM_ERROR       = FIRST_SYSTEM_WINDOW+10;
390
391        /**
392         * Window type: internal input methods windows, which appear above
393         * the normal UI.  Application windows may be resized or panned to keep
394         * the input focus visible while this window is displayed.
395         * In multiuser systems shows only on the owning user's window.
396         */
397        public static final int TYPE_INPUT_METHOD       = FIRST_SYSTEM_WINDOW+11;
398
399        /**
400         * Window type: internal input methods dialog windows, which appear above
401         * the current input method window.
402         * In multiuser systems shows only on the owning user's window.
403         */
404        public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12;
405
406        /**
407         * Window type: wallpaper window, placed behind any window that wants
408         * to sit on top of the wallpaper.
409         * In multiuser systems shows only on the owning user's window.
410         */
411        public static final int TYPE_WALLPAPER          = FIRST_SYSTEM_WINDOW+13;
412
413        /**
414         * Window type: panel that slides out from over the status bar
415         * In multiuser systems shows on all users' windows.
416         */
417        public static final int TYPE_STATUS_BAR_PANEL   = FIRST_SYSTEM_WINDOW+14;
418
419        /**
420         * Window type: secure system overlay windows, which need to be displayed
421         * on top of everything else.  These windows must not take input
422         * focus, or they will interfere with the keyguard.
423         *
424         * This is exactly like {@link #TYPE_SYSTEM_OVERLAY} except that only the
425         * system itself is allowed to create these overlays.  Applications cannot
426         * obtain permission to create secure system overlays.
427         *
428         * In multiuser systems shows only on the owning user's window.
429         * @hide
430         */
431        public static final int TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15;
432
433        /**
434         * Window type: the drag-and-drop pseudowindow.  There is only one
435         * drag layer (at most), and it is placed on top of all other windows.
436         * In multiuser systems shows only on the owning user's window.
437         * @hide
438         */
439        public static final int TYPE_DRAG               = FIRST_SYSTEM_WINDOW+16;
440
441        /**
442         * Window type: panel that slides out from under the status bar
443         * In multiuser systems shows on all users' windows.
444         * @hide
445         */
446        public static final int TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17;
447
448        /**
449         * Window type: (mouse) pointer
450         * In multiuser systems shows on all users' windows.
451         * @hide
452         */
453        public static final int TYPE_POINTER = FIRST_SYSTEM_WINDOW+18;
454
455        /**
456         * Window type: Navigation bar (when distinct from status bar)
457         * In multiuser systems shows on all users' windows.
458         * @hide
459         */
460        public static final int TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19;
461
462        /**
463         * Window type: The volume level overlay/dialog shown when the user
464         * changes the system volume.
465         * In multiuser systems shows on all users' windows.
466         * @hide
467         */
468        public static final int TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20;
469
470        /**
471         * Window type: The boot progress dialog, goes on top of everything
472         * in the world.
473         * In multiuser systems shows on all users' windows.
474         * @hide
475         */
476        public static final int TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21;
477
478        /**
479         * Window type: Fake window to consume touch events when the navigation
480         * bar is hidden.
481         * In multiuser systems shows on all users' windows.
482         * @hide
483         */
484        public static final int TYPE_HIDDEN_NAV_CONSUMER = FIRST_SYSTEM_WINDOW+22;
485
486        /**
487         * Window type: Dreams (screen saver) window, just above keyguard.
488         * In multiuser systems shows only on the owning user's window.
489         * @hide
490         */
491        public static final int TYPE_DREAM = FIRST_SYSTEM_WINDOW+23;
492
493        /**
494         * Window type: Navigation bar panel (when navigation bar is distinct from status bar)
495         * In multiuser systems shows on all users' windows.
496         * @hide
497         */
498        public static final int TYPE_NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW+24;
499
500        /**
501         * Window type: Behind the universe of the real windows.
502         * In multiuser systems shows on all users' windows.
503         * @hide
504         */
505        public static final int TYPE_UNIVERSE_BACKGROUND = FIRST_SYSTEM_WINDOW+25;
506
507        /**
508         * Window type: Display overlay window.  Used to simulate secondary display devices.
509         * In multiuser systems shows on all users' windows.
510         * @hide
511         */
512        public static final int TYPE_DISPLAY_OVERLAY = FIRST_SYSTEM_WINDOW+26;
513
514        /**
515         * Window type: Magnification overlay window. Used to highlight the magnified
516         * portion of a display when accessibility magnification is enabled.
517         * In multiuser systems shows on all users' windows.
518         * @hide
519         */
520        public static final int TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+27;
521
522        /**
523         * Window type: Recents. Same layer as {@link #TYPE_SYSTEM_DIALOG} but only appears on
524         * one user's screen.
525         * In multiuser systems shows on all users' windows.
526         * @hide
527         */
528        public static final int TYPE_RECENTS_OVERLAY = FIRST_SYSTEM_WINDOW+28;
529
530        /**
531         * End of types of system windows.
532         */
533        public static final int LAST_SYSTEM_WINDOW      = 2999;
534
535        /** @deprecated this is ignored, this value is set automatically when needed. */
536        @Deprecated
537        public static final int MEMORY_TYPE_NORMAL = 0;
538        /** @deprecated this is ignored, this value is set automatically when needed. */
539        @Deprecated
540        public static final int MEMORY_TYPE_HARDWARE = 1;
541        /** @deprecated this is ignored, this value is set automatically when needed. */
542        @Deprecated
543        public static final int MEMORY_TYPE_GPU = 2;
544        /** @deprecated this is ignored, this value is set automatically when needed. */
545        @Deprecated
546        public static final int MEMORY_TYPE_PUSH_BUFFERS = 3;
547
548        /**
549         * @deprecated this is ignored
550         */
551        @Deprecated
552        public int memoryType;
553
554        /** Window flag: as long as this window is visible to the user, allow
555         *  the lock screen to activate while the screen is on.
556         *  This can be used independently, or in combination with
557         *  {@link #FLAG_KEEP_SCREEN_ON} and/or {@link #FLAG_SHOW_WHEN_LOCKED} */
558        public static final int FLAG_ALLOW_LOCK_WHILE_SCREEN_ON     = 0x00000001;
559
560        /** Window flag: everything behind this window will be dimmed.
561         *  Use {@link #dimAmount} to control the amount of dim. */
562        public static final int FLAG_DIM_BEHIND        = 0x00000002;
563
564        /** Window flag: blur everything behind this window.
565         * @deprecated Blurring is no longer supported. */
566        @Deprecated
567        public static final int FLAG_BLUR_BEHIND        = 0x00000004;
568
569        /** Window flag: this window won't ever get key input focus, so the
570         * user can not send key or other button events to it.  Those will
571         * instead go to whatever focusable window is behind it.  This flag
572         * will also enable {@link #FLAG_NOT_TOUCH_MODAL} whether or not that
573         * is explicitly set.
574         *
575         * <p>Setting this flag also implies that the window will not need to
576         * interact with
577         * a soft input method, so it will be Z-ordered and positioned
578         * independently of any active input method (typically this means it
579         * gets Z-ordered on top of the input method, so it can use the full
580         * screen for its content and cover the input method if needed.  You
581         * can use {@link #FLAG_ALT_FOCUSABLE_IM} to modify this behavior. */
582        public static final int FLAG_NOT_FOCUSABLE      = 0x00000008;
583
584        /** Window flag: this window can never receive touch events. */
585        public static final int FLAG_NOT_TOUCHABLE      = 0x00000010;
586
587        /** Window flag: even when this window is focusable (its
588         * {@link #FLAG_NOT_FOCUSABLE} is not set), allow any pointer events
589         * outside of the window to be sent to the windows behind it.  Otherwise
590         * it will consume all pointer events itself, regardless of whether they
591         * are inside of the window. */
592        public static final int FLAG_NOT_TOUCH_MODAL    = 0x00000020;
593
594        /** Window flag: when set, if the device is asleep when the touch
595         * screen is pressed, you will receive this first touch event.  Usually
596         * the first touch event is consumed by the system since the user can
597         * not see what they are pressing on.
598         */
599        public static final int FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040;
600
601        /** Window flag: as long as this window is visible to the user, keep
602         *  the device's screen turned on and bright. */
603        public static final int FLAG_KEEP_SCREEN_ON     = 0x00000080;
604
605        /** Window flag: place the window within the entire screen, ignoring
606         *  decorations around the border (such as the status bar).  The
607         *  window must correctly position its contents to take the screen
608         *  decoration into account.  This flag is normally set for you
609         *  by Window as described in {@link Window#setFlags}. */
610        public static final int FLAG_LAYOUT_IN_SCREEN   = 0x00000100;
611
612        /** Window flag: allow window to extend outside of the screen. */
613        public static final int FLAG_LAYOUT_NO_LIMITS   = 0x00000200;
614
615        /**
616         * Window flag: hide all screen decorations (such as the status bar) while
617         * this window is displayed.  This allows the window to use the entire
618         * display space for itself -- the status bar will be hidden when
619         * an app window with this flag set is on the top layer. A fullscreen window
620         * will ignore a value of {@link #SOFT_INPUT_ADJUST_RESIZE} for the window's
621         * {@link #softInputMode} field; the window will stay fullscreen
622         * and will not resize.
623         *
624         * <p>This flag can be controlled in your theme through the
625         * {@link android.R.attr#windowFullscreen} attribute; this attribute
626         * is automatically set for you in the standard fullscreen themes
627         * such as {@link android.R.style#Theme_NoTitleBar_Fullscreen},
628         * {@link android.R.style#Theme_Black_NoTitleBar_Fullscreen},
629         * {@link android.R.style#Theme_Light_NoTitleBar_Fullscreen},
630         * {@link android.R.style#Theme_Holo_NoActionBar_Fullscreen},
631         * {@link android.R.style#Theme_Holo_Light_NoActionBar_Fullscreen},
632         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_Fullscreen}, and
633         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_Fullscreen}.</p>
634         */
635        public static final int FLAG_FULLSCREEN      = 0x00000400;
636
637        /** Window flag: override {@link #FLAG_FULLSCREEN} and force the
638         *  screen decorations (such as the status bar) to be shown. */
639        public static final int FLAG_FORCE_NOT_FULLSCREEN   = 0x00000800;
640
641        /** Window flag: turn on dithering when compositing this window to
642         *  the screen.
643         * @deprecated This flag is no longer used. */
644        @Deprecated
645        public static final int FLAG_DITHER             = 0x00001000;
646
647        /** Window flag: treat the content of the window as secure, preventing
648         * it from appearing in screenshots or from being viewed on non-secure
649         * displays.
650         *
651         * <p>See {@link android.view.Display#FLAG_SECURE} for more details about
652         * secure surfaces and secure displays.
653         */
654        public static final int FLAG_SECURE             = 0x00002000;
655
656        /** Window flag: a special mode where the layout parameters are used
657         * to perform scaling of the surface when it is composited to the
658         * screen. */
659        public static final int FLAG_SCALED             = 0x00004000;
660
661        /** Window flag: intended for windows that will often be used when the user is
662         * holding the screen against their face, it will aggressively filter the event
663         * stream to prevent unintended presses in this situation that may not be
664         * desired for a particular window, when such an event stream is detected, the
665         * application will receive a CANCEL motion event to indicate this so applications
666         * can handle this accordingly by taking no action on the event
667         * until the finger is released. */
668        public static final int FLAG_IGNORE_CHEEK_PRESSES    = 0x00008000;
669
670        /** Window flag: a special option only for use in combination with
671         * {@link #FLAG_LAYOUT_IN_SCREEN}.  When requesting layout in the
672         * screen your window may appear on top of or behind screen decorations
673         * such as the status bar.  By also including this flag, the window
674         * manager will report the inset rectangle needed to ensure your
675         * content is not covered by screen decorations.  This flag is normally
676         * set for you by Window as described in {@link Window#setFlags}.*/
677        public static final int FLAG_LAYOUT_INSET_DECOR = 0x00010000;
678
679        /** Window flag: invert the state of {@link #FLAG_NOT_FOCUSABLE} with
680         * respect to how this window interacts with the current method.  That
681         * is, if FLAG_NOT_FOCUSABLE is set and this flag is set, then the
682         * window will behave as if it needs to interact with the input method
683         * and thus be placed behind/away from it; if FLAG_NOT_FOCUSABLE is
684         * not set and this flag is set, then the window will behave as if it
685         * doesn't need to interact with the input method and can be placed
686         * to use more space and cover the input method.
687         */
688        public static final int FLAG_ALT_FOCUSABLE_IM = 0x00020000;
689
690        /** Window flag: if you have set {@link #FLAG_NOT_TOUCH_MODAL}, you
691         * can set this flag to receive a single special MotionEvent with
692         * the action
693         * {@link MotionEvent#ACTION_OUTSIDE MotionEvent.ACTION_OUTSIDE} for
694         * touches that occur outside of your window.  Note that you will not
695         * receive the full down/move/up gesture, only the location of the
696         * first down as an ACTION_OUTSIDE.
697         */
698        public static final int FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000;
699
700        /** Window flag: special flag to let windows be shown when the screen
701         * is locked. This will let application windows take precedence over
702         * key guard or any other lock screens. Can be used with
703         * {@link #FLAG_KEEP_SCREEN_ON} to turn screen on and display windows
704         * directly before showing the key guard window.  Can be used with
705         * {@link #FLAG_DISMISS_KEYGUARD} to automatically fully dismisss
706         * non-secure keyguards.  This flag only applies to the top-most
707         * full-screen window.
708         */
709        public static final int FLAG_SHOW_WHEN_LOCKED = 0x00080000;
710
711        /** Window flag: ask that the system wallpaper be shown behind
712         * your window.  The window surface must be translucent to be able
713         * to actually see the wallpaper behind it; this flag just ensures
714         * that the wallpaper surface will be there if this window actually
715         * has translucent regions.
716         *
717         * <p>This flag can be controlled in your theme through the
718         * {@link android.R.attr#windowShowWallpaper} attribute; this attribute
719         * is automatically set for you in the standard wallpaper themes
720         * such as {@link android.R.style#Theme_Wallpaper},
721         * {@link android.R.style#Theme_Wallpaper_NoTitleBar},
722         * {@link android.R.style#Theme_Wallpaper_NoTitleBar_Fullscreen},
723         * {@link android.R.style#Theme_Holo_Wallpaper},
724         * {@link android.R.style#Theme_Holo_Wallpaper_NoTitleBar},
725         * {@link android.R.style#Theme_DeviceDefault_Wallpaper}, and
726         * {@link android.R.style#Theme_DeviceDefault_Wallpaper_NoTitleBar}.</p>
727         */
728        public static final int FLAG_SHOW_WALLPAPER = 0x00100000;
729
730        /** Window flag: when set as a window is being added or made
731         * visible, once the window has been shown then the system will
732         * poke the power manager's user activity (as if the user had woken
733         * up the device) to turn the screen on. */
734        public static final int FLAG_TURN_SCREEN_ON = 0x00200000;
735
736        /** Window flag: when set the window will cause the keyguard to
737         * be dismissed, only if it is not a secure lock keyguard.  Because such
738         * a keyguard is not needed for security, it will never re-appear if
739         * the user navigates to another window (in contrast to
740         * {@link #FLAG_SHOW_WHEN_LOCKED}, which will only temporarily
741         * hide both secure and non-secure keyguards but ensure they reappear
742         * when the user moves to another UI that doesn't hide them).
743         * If the keyguard is currently active and is secure (requires an
744         * unlock pattern) than the user will still need to confirm it before
745         * seeing this window, unless {@link #FLAG_SHOW_WHEN_LOCKED} has
746         * also been set.
747         */
748        public static final int FLAG_DISMISS_KEYGUARD = 0x00400000;
749
750        /** Window flag: when set the window will accept for touch events
751         * outside of its bounds to be sent to other windows that also
752         * support split touch.  When this flag is not set, the first pointer
753         * that goes down determines the window to which all subsequent touches
754         * go until all pointers go up.  When this flag is set, each pointer
755         * (not necessarily the first) that goes down determines the window
756         * to which all subsequent touches of that pointer will go until that
757         * pointer goes up thereby enabling touches with multiple pointers
758         * to be split across multiple windows.
759         */
760        public static final int FLAG_SPLIT_TOUCH = 0x00800000;
761
762        /**
763         * <p>Indicates whether this window should be hardware accelerated.
764         * Requesting hardware acceleration does not guarantee it will happen.</p>
765         *
766         * <p>This flag can be controlled programmatically <em>only</em> to enable
767         * hardware acceleration. To enable hardware acceleration for a given
768         * window programmatically, do the following:</p>
769         *
770         * <pre>
771         * Window w = activity.getWindow(); // in Activity's onCreate() for instance
772         * w.setFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
773         *         WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
774         * </pre>
775         *
776         * <p>It is important to remember that this flag <strong>must</strong>
777         * be set before setting the content view of your activity or dialog.</p>
778         *
779         * <p>This flag cannot be used to disable hardware acceleration after it
780         * was enabled in your manifest using
781         * {@link android.R.attr#hardwareAccelerated}. If you need to selectively
782         * and programmatically disable hardware acceleration (for automated testing
783         * for instance), make sure it is turned off in your manifest and enable it
784         * on your activity or dialog when you need it instead, using the method
785         * described above.</p>
786         *
787         * <p>This flag is automatically set by the system if the
788         * {@link android.R.attr#hardwareAccelerated android:hardwareAccelerated}
789         * XML attribute is set to true on an activity or on the application.</p>
790         */
791        public static final int FLAG_HARDWARE_ACCELERATED = 0x01000000;
792
793        /**
794         * Window flag: allow window contents to extend in to the screen's
795         * overscan area, if there is one.  The window should still correctly
796         * position its contents to take the overscan area into account.
797         *
798         * <p>This flag can be controlled in your theme through the
799         * {@link android.R.attr#windowOverscan} attribute; this attribute
800         * is automatically set for you in the standard overscan themes
801         * such as
802         * {@link android.R.style#Theme_Holo_NoActionBar_Overscan},
803         * {@link android.R.style#Theme_Holo_Light_NoActionBar_Overscan},
804         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_Overscan}, and
805         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_Overscan}.</p>
806         *
807         * <p>When this flag is enabled for a window, its normal content may be obscured
808         * to some degree by the overscan region of the display.  To ensure key parts of
809         * that content are visible to the user, you can use
810         * {@link View#setFitsSystemWindows(boolean) View.setFitsSystemWindows(boolean)}
811         * to set the point in the view hierarchy where the appropriate offsets should
812         * be applied.  (This can be done either by directly calling this function, using
813         * the {@link android.R.attr#fitsSystemWindows} attribute in your view hierarchy,
814         * or implementing you own {@link View#fitSystemWindows(android.graphics.Rect)
815         * View.fitSystemWindows(Rect)} method).</p>
816         *
817         * <p>This mechanism for positioning content elements is identical to its equivalent
818         * use with layout and {@link View#setSystemUiVisibility(int)
819         * View.setSystemUiVisibility(int)}; here is an example layout that will correctly
820         * position its UI elements with this overscan flag is set:</p>
821         *
822         * {@sample development/samples/ApiDemos/res/layout/overscan_activity.xml complete}
823         */
824        public static final int FLAG_LAYOUT_IN_OVERSCAN = 0x02000000;
825
826        // ----- HIDDEN FLAGS.
827        // These start at the high bit and go down.
828
829        /** Window flag: Enable touches to slide out of a window into neighboring
830         * windows in mid-gesture instead of being captured for the duration of
831         * the gesture.
832         *
833         * This flag changes the behavior of touch focus for this window only.
834         * Touches can slide out of the window but they cannot necessarily slide
835         * back in (unless the other window with touch focus permits it).
836         *
837         * {@hide}
838         */
839        public static final int FLAG_SLIPPERY = 0x04000000;
840
841        /**
842         * Flag for a window belonging to an activity that responds to {@link KeyEvent#KEYCODE_MENU}
843         * and therefore needs a Menu key. For devices where Menu is a physical button this flag is
844         * ignored, but on devices where the Menu key is drawn in software it may be hidden unless
845         * this flag is set.
846         *
847         * (Note that Action Bars, when available, are the preferred way to offer additional
848         * functions otherwise accessed via an options menu.)
849         *
850         * {@hide}
851         */
852        public static final int FLAG_NEEDS_MENU_KEY = 0x08000000;
853
854        /** Window flag: special flag to limit the size of the window to be
855         * original size ([320x480] x density). Used to create window for applications
856         * running under compatibility mode.
857         *
858         * {@hide} */
859        public static final int FLAG_COMPATIBLE_WINDOW = 0x20000000;
860
861        /** Window flag: a special option intended for system dialogs.  When
862         * this flag is set, the window will demand focus unconditionally when
863         * it is created.
864         * {@hide} */
865        public static final int FLAG_SYSTEM_ERROR = 0x40000000;
866
867        /**
868         * Various behavioral options/flags.  Default is none.
869         *
870         * @see #FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
871         * @see #FLAG_DIM_BEHIND
872         * @see #FLAG_NOT_FOCUSABLE
873         * @see #FLAG_NOT_TOUCHABLE
874         * @see #FLAG_NOT_TOUCH_MODAL
875         * @see #FLAG_TOUCHABLE_WHEN_WAKING
876         * @see #FLAG_KEEP_SCREEN_ON
877         * @see #FLAG_LAYOUT_IN_SCREEN
878         * @see #FLAG_LAYOUT_NO_LIMITS
879         * @see #FLAG_FULLSCREEN
880         * @see #FLAG_FORCE_NOT_FULLSCREEN
881         * @see #FLAG_SECURE
882         * @see #FLAG_SCALED
883         * @see #FLAG_IGNORE_CHEEK_PRESSES
884         * @see #FLAG_LAYOUT_INSET_DECOR
885         * @see #FLAG_ALT_FOCUSABLE_IM
886         * @see #FLAG_WATCH_OUTSIDE_TOUCH
887         * @see #FLAG_SHOW_WHEN_LOCKED
888         * @see #FLAG_SHOW_WALLPAPER
889         * @see #FLAG_TURN_SCREEN_ON
890         * @see #FLAG_DISMISS_KEYGUARD
891         * @see #FLAG_SPLIT_TOUCH
892         * @see #FLAG_HARDWARE_ACCELERATED
893         */
894        @ViewDebug.ExportedProperty(flagMapping = {
895            @ViewDebug.FlagToString(mask = FLAG_ALLOW_LOCK_WHILE_SCREEN_ON, equals = FLAG_ALLOW_LOCK_WHILE_SCREEN_ON,
896                    name = "FLAG_ALLOW_LOCK_WHILE_SCREEN_ON"),
897            @ViewDebug.FlagToString(mask = FLAG_DIM_BEHIND, equals = FLAG_DIM_BEHIND,
898                    name = "FLAG_DIM_BEHIND"),
899            @ViewDebug.FlagToString(mask = FLAG_BLUR_BEHIND, equals = FLAG_BLUR_BEHIND,
900                    name = "FLAG_BLUR_BEHIND"),
901            @ViewDebug.FlagToString(mask = FLAG_NOT_FOCUSABLE, equals = FLAG_NOT_FOCUSABLE,
902                    name = "FLAG_NOT_FOCUSABLE"),
903            @ViewDebug.FlagToString(mask = FLAG_NOT_TOUCHABLE, equals = FLAG_NOT_TOUCHABLE,
904                    name = "FLAG_NOT_TOUCHABLE"),
905            @ViewDebug.FlagToString(mask = FLAG_NOT_TOUCH_MODAL, equals = FLAG_NOT_TOUCH_MODAL,
906                    name = "FLAG_NOT_TOUCH_MODAL"),
907            @ViewDebug.FlagToString(mask = FLAG_TOUCHABLE_WHEN_WAKING, equals = FLAG_TOUCHABLE_WHEN_WAKING,
908                    name = "FLAG_TOUCHABLE_WHEN_WAKING"),
909            @ViewDebug.FlagToString(mask = FLAG_KEEP_SCREEN_ON, equals = FLAG_KEEP_SCREEN_ON,
910                    name = "FLAG_KEEP_SCREEN_ON"),
911            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_IN_SCREEN, equals = FLAG_LAYOUT_IN_SCREEN,
912                    name = "FLAG_LAYOUT_IN_SCREEN"),
913            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_NO_LIMITS, equals = FLAG_LAYOUT_NO_LIMITS,
914                    name = "FLAG_LAYOUT_NO_LIMITS"),
915            @ViewDebug.FlagToString(mask = FLAG_FULLSCREEN, equals = FLAG_FULLSCREEN,
916                    name = "FLAG_FULLSCREEN"),
917            @ViewDebug.FlagToString(mask = FLAG_FORCE_NOT_FULLSCREEN, equals = FLAG_FORCE_NOT_FULLSCREEN,
918                    name = "FLAG_FORCE_NOT_FULLSCREEN"),
919            @ViewDebug.FlagToString(mask = FLAG_DITHER, equals = FLAG_DITHER,
920                    name = "FLAG_DITHER"),
921            @ViewDebug.FlagToString(mask = FLAG_SECURE, equals = FLAG_SECURE,
922                    name = "FLAG_SECURE"),
923            @ViewDebug.FlagToString(mask = FLAG_SCALED, equals = FLAG_SCALED,
924                    name = "FLAG_SCALED"),
925            @ViewDebug.FlagToString(mask = FLAG_IGNORE_CHEEK_PRESSES, equals = FLAG_IGNORE_CHEEK_PRESSES,
926                    name = "FLAG_IGNORE_CHEEK_PRESSES"),
927            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_INSET_DECOR, equals = FLAG_LAYOUT_INSET_DECOR,
928                    name = "FLAG_LAYOUT_INSET_DECOR"),
929            @ViewDebug.FlagToString(mask = FLAG_ALT_FOCUSABLE_IM, equals = FLAG_ALT_FOCUSABLE_IM,
930                    name = "FLAG_ALT_FOCUSABLE_IM"),
931            @ViewDebug.FlagToString(mask = FLAG_WATCH_OUTSIDE_TOUCH, equals = FLAG_WATCH_OUTSIDE_TOUCH,
932                    name = "FLAG_WATCH_OUTSIDE_TOUCH"),
933            @ViewDebug.FlagToString(mask = FLAG_SHOW_WHEN_LOCKED, equals = FLAG_SHOW_WHEN_LOCKED,
934                    name = "FLAG_SHOW_WHEN_LOCKED"),
935            @ViewDebug.FlagToString(mask = FLAG_SHOW_WALLPAPER, equals = FLAG_SHOW_WALLPAPER,
936                    name = "FLAG_SHOW_WALLPAPER"),
937            @ViewDebug.FlagToString(mask = FLAG_TURN_SCREEN_ON, equals = FLAG_TURN_SCREEN_ON,
938                    name = "FLAG_TURN_SCREEN_ON"),
939            @ViewDebug.FlagToString(mask = FLAG_DISMISS_KEYGUARD, equals = FLAG_DISMISS_KEYGUARD,
940                    name = "FLAG_DISMISS_KEYGUARD"),
941            @ViewDebug.FlagToString(mask = FLAG_SPLIT_TOUCH, equals = FLAG_SPLIT_TOUCH,
942                    name = "FLAG_SPLIT_TOUCH"),
943            @ViewDebug.FlagToString(mask = FLAG_HARDWARE_ACCELERATED, equals = FLAG_HARDWARE_ACCELERATED,
944                    name = "FLAG_HARDWARE_ACCELERATED")
945        })
946        public int flags;
947
948        /**
949         * If the window has requested hardware acceleration, but this is not
950         * allowed in the process it is in, then still render it as if it is
951         * hardware accelerated.  This is used for the starting preview windows
952         * in the system process, which don't need to have the overhead of
953         * hardware acceleration (they are just a static rendering), but should
954         * be rendered as such to match the actual window of the app even if it
955         * is hardware accelerated.
956         * Even if the window isn't hardware accelerated, still do its rendering
957         * as if it was.
958         * Like {@link #FLAG_HARDWARE_ACCELERATED} except for trusted system windows
959         * that need hardware acceleration (e.g. LockScreen), where hardware acceleration
960         * is generally disabled. This flag must be specified in addition to
961         * {@link #FLAG_HARDWARE_ACCELERATED} to enable hardware acceleration for system
962         * windows.
963         *
964         * @hide
965         */
966        public static final int PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED = 0x00000001;
967
968        /**
969         * In the system process, we globally do not use hardware acceleration
970         * because there are many threads doing UI there and they conflict.
971         * If certain parts of the UI that really do want to use hardware
972         * acceleration, this flag can be set to force it.  This is basically
973         * for the lock screen.  Anyone else using it, you are probably wrong.
974         *
975         * @hide
976         */
977        public static final int PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED = 0x00000002;
978
979        /**
980         * By default, wallpapers are sent new offsets when the wallpaper is scrolled. Wallpapers
981         * may elect to skip these notifications if they are not doing anything productive with
982         * them (they do not affect the wallpaper scrolling operation) by calling
983         * {@link
984         * android.service.wallpaper.WallpaperService.Engine#setOffsetNotificationsEnabled(boolean)}.
985         *
986         * @hide
987         */
988        public static final int PRIVATE_FLAG_WANTS_OFFSET_NOTIFICATIONS = 0x00000004;
989
990        /**
991         * This is set for a window that has explicitly specified its
992         * FLAG_NEEDS_MENU_KEY, so we know the value on this window is the
993         * appropriate one to use.  If this is not set, we should look at
994         * windows behind it to determine the appropriate value.
995         *
996         * @hide
997         */
998        public static final int PRIVATE_FLAG_SET_NEEDS_MENU_KEY = 0x00000008;
999
1000        /** In a multiuser system if this flag is set and the owner is a system process then this
1001         * window will appear on all user screens. This overrides the default behavior of window
1002         * types that normally only appear on the owning user's screen. Refer to each window type
1003         * to determine its default behavior.
1004         *
1005         * {@hide} */
1006        public static final int PRIVATE_FLAG_SHOW_FOR_ALL_USERS = 0x00000010;
1007
1008        /**
1009         * Special flag for the volume overlay: force the window manager out of "hide nav bar"
1010         * mode while the window is on screen.
1011         *
1012         * {@hide} */
1013        public static final int PRIVATE_FLAG_FORCE_SHOW_NAV_BAR = 0x00000020;
1014
1015        /**
1016         * Never animate position changes of the window.
1017         *
1018         * {@hide} */
1019        public static final int PRIVATE_FLAG_NO_MOVE_ANIMATION = 0x00000040;
1020
1021        /**
1022         * Control flags that are private to the platform.
1023         * @hide
1024         */
1025        public int privateFlags;
1026
1027        /**
1028         * Given a particular set of window manager flags, determine whether
1029         * such a window may be a target for an input method when it has
1030         * focus.  In particular, this checks the
1031         * {@link #FLAG_NOT_FOCUSABLE} and {@link #FLAG_ALT_FOCUSABLE_IM}
1032         * flags and returns true if the combination of the two corresponds
1033         * to a window that needs to be behind the input method so that the
1034         * user can type into it.
1035         *
1036         * @param flags The current window manager flags.
1037         *
1038         * @return Returns true if such a window should be behind/interact
1039         * with an input method, false if not.
1040         */
1041        public static boolean mayUseInputMethod(int flags) {
1042            switch (flags&(FLAG_NOT_FOCUSABLE|FLAG_ALT_FOCUSABLE_IM)) {
1043                case 0:
1044                case FLAG_NOT_FOCUSABLE|FLAG_ALT_FOCUSABLE_IM:
1045                    return true;
1046            }
1047            return false;
1048        }
1049
1050        /**
1051         * Mask for {@link #softInputMode} of the bits that determine the
1052         * desired visibility state of the soft input area for this window.
1053         */
1054        public static final int SOFT_INPUT_MASK_STATE = 0x0f;
1055
1056        /**
1057         * Visibility state for {@link #softInputMode}: no state has been specified.
1058         */
1059        public static final int SOFT_INPUT_STATE_UNSPECIFIED = 0;
1060
1061        /**
1062         * Visibility state for {@link #softInputMode}: please don't change the state of
1063         * the soft input area.
1064         */
1065        public static final int SOFT_INPUT_STATE_UNCHANGED = 1;
1066
1067        /**
1068         * Visibility state for {@link #softInputMode}: please hide any soft input
1069         * area when normally appropriate (when the user is navigating
1070         * forward to your window).
1071         */
1072        public static final int SOFT_INPUT_STATE_HIDDEN = 2;
1073
1074        /**
1075         * Visibility state for {@link #softInputMode}: please always hide any
1076         * soft input area when this window receives focus.
1077         */
1078        public static final int SOFT_INPUT_STATE_ALWAYS_HIDDEN = 3;
1079
1080        /**
1081         * Visibility state for {@link #softInputMode}: please show the soft
1082         * input area when normally appropriate (when the user is navigating
1083         * forward to your window).
1084         */
1085        public static final int SOFT_INPUT_STATE_VISIBLE = 4;
1086
1087        /**
1088         * Visibility state for {@link #softInputMode}: please always make the
1089         * soft input area visible when this window receives input focus.
1090         */
1091        public static final int SOFT_INPUT_STATE_ALWAYS_VISIBLE = 5;
1092
1093        /**
1094         * Mask for {@link #softInputMode} of the bits that determine the
1095         * way that the window should be adjusted to accommodate the soft
1096         * input window.
1097         */
1098        public static final int SOFT_INPUT_MASK_ADJUST = 0xf0;
1099
1100        /** Adjustment option for {@link #softInputMode}: nothing specified.
1101         * The system will try to pick one or
1102         * the other depending on the contents of the window.
1103         */
1104        public static final int SOFT_INPUT_ADJUST_UNSPECIFIED = 0x00;
1105
1106        /** Adjustment option for {@link #softInputMode}: set to allow the
1107         * window to be resized when an input
1108         * method is shown, so that its contents are not covered by the input
1109         * method.  This can <em>not</em> be combined with
1110         * {@link #SOFT_INPUT_ADJUST_PAN}; if
1111         * neither of these are set, then the system will try to pick one or
1112         * the other depending on the contents of the window. If the window's
1113         * layout parameter flags include {@link #FLAG_FULLSCREEN}, this
1114         * value for {@link #softInputMode} will be ignored; the window will
1115         * not resize, but will stay fullscreen.
1116         */
1117        public static final int SOFT_INPUT_ADJUST_RESIZE = 0x10;
1118
1119        /** Adjustment option for {@link #softInputMode}: set to have a window
1120         * pan when an input method is
1121         * shown, so it doesn't need to deal with resizing but just panned
1122         * by the framework to ensure the current input focus is visible.  This
1123         * can <em>not</em> be combined with {@link #SOFT_INPUT_ADJUST_RESIZE}; if
1124         * neither of these are set, then the system will try to pick one or
1125         * the other depending on the contents of the window.
1126         */
1127        public static final int SOFT_INPUT_ADJUST_PAN = 0x20;
1128
1129        /** Adjustment option for {@link #softInputMode}: set to have a window
1130         * not adjust for a shown input method.  The window will not be resized,
1131         * and it will not be panned to make its focus visible.
1132         */
1133        public static final int SOFT_INPUT_ADJUST_NOTHING = 0x30;
1134
1135        /**
1136         * Bit for {@link #softInputMode}: set when the user has navigated
1137         * forward to the window.  This is normally set automatically for
1138         * you by the system, though you may want to set it in certain cases
1139         * when you are displaying a window yourself.  This flag will always
1140         * be cleared automatically after the window is displayed.
1141         */
1142        public static final int SOFT_INPUT_IS_FORWARD_NAVIGATION = 0x100;
1143
1144        /**
1145         * Desired operating mode for any soft input area.  May be any combination
1146         * of:
1147         *
1148         * <ul>
1149         * <li> One of the visibility states
1150         * {@link #SOFT_INPUT_STATE_UNSPECIFIED}, {@link #SOFT_INPUT_STATE_UNCHANGED},
1151         * {@link #SOFT_INPUT_STATE_HIDDEN}, {@link #SOFT_INPUT_STATE_ALWAYS_VISIBLE}, or
1152         * {@link #SOFT_INPUT_STATE_VISIBLE}.
1153         * <li> One of the adjustment options
1154         * {@link #SOFT_INPUT_ADJUST_UNSPECIFIED},
1155         * {@link #SOFT_INPUT_ADJUST_RESIZE}, or
1156         * {@link #SOFT_INPUT_ADJUST_PAN}.
1157         * </ul>
1158         *
1159         *
1160         * <p>This flag can be controlled in your theme through the
1161         * {@link android.R.attr#windowSoftInputMode} attribute.</p>
1162         */
1163        public int softInputMode;
1164
1165        /**
1166         * Placement of window within the screen as per {@link Gravity}.  Both
1167         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1168         * android.graphics.Rect) Gravity.apply} and
1169         * {@link Gravity#applyDisplay(int, android.graphics.Rect, android.graphics.Rect)
1170         * Gravity.applyDisplay} are used during window layout, with this value
1171         * given as the desired gravity.  For example you can specify
1172         * {@link Gravity#DISPLAY_CLIP_HORIZONTAL Gravity.DISPLAY_CLIP_HORIZONTAL} and
1173         * {@link Gravity#DISPLAY_CLIP_VERTICAL Gravity.DISPLAY_CLIP_VERTICAL} here
1174         * to control the behavior of
1175         * {@link Gravity#applyDisplay(int, android.graphics.Rect, android.graphics.Rect)
1176         * Gravity.applyDisplay}.
1177         *
1178         * @see Gravity
1179         */
1180        public int gravity;
1181
1182        /**
1183         * The horizontal margin, as a percentage of the container's width,
1184         * between the container and the widget.  See
1185         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1186         * android.graphics.Rect) Gravity.apply} for how this is used.  This
1187         * field is added with {@link #x} to supply the <var>xAdj</var> parameter.
1188         */
1189        public float horizontalMargin;
1190
1191        /**
1192         * The vertical margin, as a percentage of the container's height,
1193         * between the container and the widget.  See
1194         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1195         * android.graphics.Rect) Gravity.apply} for how this is used.  This
1196         * field is added with {@link #y} to supply the <var>yAdj</var> parameter.
1197         */
1198        public float verticalMargin;
1199
1200        /**
1201         * The desired bitmap format.  May be one of the constants in
1202         * {@link android.graphics.PixelFormat}.  Default is OPAQUE.
1203         */
1204        public int format;
1205
1206        /**
1207         * A style resource defining the animations to use for this window.
1208         * This must be a system resource; it can not be an application resource
1209         * because the window manager does not have access to applications.
1210         */
1211        public int windowAnimations;
1212
1213        /**
1214         * An alpha value to apply to this entire window.
1215         * An alpha of 1.0 means fully opaque and 0.0 means fully transparent
1216         */
1217        public float alpha = 1.0f;
1218
1219        /**
1220         * When {@link #FLAG_DIM_BEHIND} is set, this is the amount of dimming
1221         * to apply.  Range is from 1.0 for completely opaque to 0.0 for no
1222         * dim.
1223         */
1224        public float dimAmount = 1.0f;
1225
1226        /**
1227         * Default value for {@link #screenBrightness} and {@link #buttonBrightness}
1228         * indicating that the brightness value is not overridden for this window
1229         * and normal brightness policy should be used.
1230         */
1231        public static final float BRIGHTNESS_OVERRIDE_NONE = -1.0f;
1232
1233        /**
1234         * Value for {@link #screenBrightness} and {@link #buttonBrightness}
1235         * indicating that the screen or button backlight brightness should be set
1236         * to the lowest value when this window is in front.
1237         */
1238        public static final float BRIGHTNESS_OVERRIDE_OFF = 0.0f;
1239
1240        /**
1241         * Value for {@link #screenBrightness} and {@link #buttonBrightness}
1242         * indicating that the screen or button backlight brightness should be set
1243         * to the hightest value when this window is in front.
1244         */
1245        public static final float BRIGHTNESS_OVERRIDE_FULL = 1.0f;
1246
1247        /**
1248         * This can be used to override the user's preferred brightness of
1249         * the screen.  A value of less than 0, the default, means to use the
1250         * preferred screen brightness.  0 to 1 adjusts the brightness from
1251         * dark to full bright.
1252         */
1253        public float screenBrightness = BRIGHTNESS_OVERRIDE_NONE;
1254
1255        /**
1256         * This can be used to override the standard behavior of the button and
1257         * keyboard backlights.  A value of less than 0, the default, means to
1258         * use the standard backlight behavior.  0 to 1 adjusts the brightness
1259         * from dark to full bright.
1260         */
1261        public float buttonBrightness = BRIGHTNESS_OVERRIDE_NONE;
1262
1263        /**
1264         * Value for {@link #rotationAnimation} to define the animation used to
1265         * specify that this window will rotate in or out following a rotation.
1266         */
1267        public static final int ROTATION_ANIMATION_ROTATE = 0;
1268
1269        /**
1270         * Value for {@link #rotationAnimation} to define the animation used to
1271         * specify that this window will fade in or out following a rotation.
1272         */
1273        public static final int ROTATION_ANIMATION_CROSSFADE = 1;
1274
1275        /**
1276         * Value for {@link #rotationAnimation} to define the animation used to
1277         * specify that this window will immediately disappear or appear following
1278         * a rotation.
1279         */
1280        public static final int ROTATION_ANIMATION_JUMPCUT = 2;
1281
1282        /**
1283         * Define the exit and entry animations used on this window when the device is rotated.
1284         * This only has an affect if the incoming and outgoing topmost
1285         * opaque windows have the #FLAG_FULLSCREEN bit set and are not covered
1286         * by other windows. All other situations default to the
1287         * {@link #ROTATION_ANIMATION_ROTATE} behavior.
1288         *
1289         * @see #ROTATION_ANIMATION_ROTATE
1290         * @see #ROTATION_ANIMATION_CROSSFADE
1291         * @see #ROTATION_ANIMATION_JUMPCUT
1292         */
1293        public int rotationAnimation = ROTATION_ANIMATION_ROTATE;
1294
1295        /**
1296         * Identifier for this window.  This will usually be filled in for
1297         * you.
1298         */
1299        public IBinder token = null;
1300
1301        /**
1302         * Name of the package owning this window.
1303         */
1304        public String packageName = null;
1305
1306        /**
1307         * Specific orientation value for a window.
1308         * May be any of the same values allowed
1309         * for {@link android.content.pm.ActivityInfo#screenOrientation}.
1310         * If not set, a default value of
1311         * {@link android.content.pm.ActivityInfo#SCREEN_ORIENTATION_UNSPECIFIED}
1312         * will be used.
1313         */
1314        public int screenOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
1315
1316        /**
1317         * Control the visibility of the status bar.
1318         *
1319         * @see View#STATUS_BAR_VISIBLE
1320         * @see View#STATUS_BAR_HIDDEN
1321         */
1322        public int systemUiVisibility;
1323
1324        /**
1325         * @hide
1326         * The ui visibility as requested by the views in this hierarchy.
1327         * the combined value should be systemUiVisibility | subtreeSystemUiVisibility.
1328         */
1329        public int subtreeSystemUiVisibility;
1330
1331        /**
1332         * Get callbacks about the system ui visibility changing.
1333         *
1334         * TODO: Maybe there should be a bitfield of optional callbacks that we need.
1335         *
1336         * @hide
1337         */
1338        public boolean hasSystemUiListeners;
1339
1340        /**
1341         * When this window has focus, disable touch pad pointer gesture processing.
1342         * The window will receive raw position updates from the touch pad instead
1343         * of pointer movements and synthetic touch events.
1344         *
1345         * @hide
1346         */
1347        public static final int INPUT_FEATURE_DISABLE_POINTER_GESTURES = 0x00000001;
1348
1349        /**
1350         * Does not construct an input channel for this window.  The channel will therefore
1351         * be incapable of receiving input.
1352         *
1353         * @hide
1354         */
1355        public static final int INPUT_FEATURE_NO_INPUT_CHANNEL = 0x00000002;
1356
1357        /**
1358         * When this window has focus, does not call user activity for all input events so
1359         * the application will have to do it itself.  Should only be used by
1360         * the keyguard and phone app.
1361         * <p>
1362         * Should only be used by the keyguard and phone app.
1363         * </p>
1364         *
1365         * @hide
1366         */
1367        public static final int INPUT_FEATURE_DISABLE_USER_ACTIVITY = 0x00000004;
1368
1369        /**
1370         * Control special features of the input subsystem.
1371         *
1372         * @see #INPUT_FEATURE_DISABLE_POINTER_GESTURES
1373         * @see #INPUT_FEATURE_NO_INPUT_CHANNEL
1374         * @see #INPUT_FEATURE_DISABLE_USER_ACTIVITY
1375         * @hide
1376         */
1377        public int inputFeatures;
1378
1379        /**
1380         * Sets the number of milliseconds before the user activity timeout occurs
1381         * when this window has focus.  A value of -1 uses the standard timeout.
1382         * A value of 0 uses the minimum support display timeout.
1383         * <p>
1384         * This property can only be used to reduce the user specified display timeout;
1385         * it can never make the timeout longer than it normally would be.
1386         * </p><p>
1387         * Should only be used by the keyguard and phone app.
1388         * </p>
1389         *
1390         * @hide
1391         */
1392        public long userActivityTimeout = -1;
1393
1394        public LayoutParams() {
1395            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1396            type = TYPE_APPLICATION;
1397            format = PixelFormat.OPAQUE;
1398        }
1399
1400        public LayoutParams(int _type) {
1401            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1402            type = _type;
1403            format = PixelFormat.OPAQUE;
1404        }
1405
1406        public LayoutParams(int _type, int _flags) {
1407            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1408            type = _type;
1409            flags = _flags;
1410            format = PixelFormat.OPAQUE;
1411        }
1412
1413        public LayoutParams(int _type, int _flags, int _format) {
1414            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1415            type = _type;
1416            flags = _flags;
1417            format = _format;
1418        }
1419
1420        public LayoutParams(int w, int h, int _type, int _flags, int _format) {
1421            super(w, h);
1422            type = _type;
1423            flags = _flags;
1424            format = _format;
1425        }
1426
1427        public LayoutParams(int w, int h, int xpos, int ypos, int _type,
1428                int _flags, int _format) {
1429            super(w, h);
1430            x = xpos;
1431            y = ypos;
1432            type = _type;
1433            flags = _flags;
1434            format = _format;
1435        }
1436
1437        public final void setTitle(CharSequence title) {
1438            if (null == title)
1439                title = "";
1440
1441            mTitle = TextUtils.stringOrSpannedString(title);
1442        }
1443
1444        public final CharSequence getTitle() {
1445            return mTitle;
1446        }
1447
1448        public int describeContents() {
1449            return 0;
1450        }
1451
1452        public void writeToParcel(Parcel out, int parcelableFlags) {
1453            out.writeInt(width);
1454            out.writeInt(height);
1455            out.writeInt(x);
1456            out.writeInt(y);
1457            out.writeInt(type);
1458            out.writeInt(flags);
1459            out.writeInt(privateFlags);
1460            out.writeInt(softInputMode);
1461            out.writeInt(gravity);
1462            out.writeFloat(horizontalMargin);
1463            out.writeFloat(verticalMargin);
1464            out.writeInt(format);
1465            out.writeInt(windowAnimations);
1466            out.writeFloat(alpha);
1467            out.writeFloat(dimAmount);
1468            out.writeFloat(screenBrightness);
1469            out.writeFloat(buttonBrightness);
1470            out.writeInt(rotationAnimation);
1471            out.writeStrongBinder(token);
1472            out.writeString(packageName);
1473            TextUtils.writeToParcel(mTitle, out, parcelableFlags);
1474            out.writeInt(screenOrientation);
1475            out.writeInt(systemUiVisibility);
1476            out.writeInt(subtreeSystemUiVisibility);
1477            out.writeInt(hasSystemUiListeners ? 1 : 0);
1478            out.writeInt(inputFeatures);
1479            out.writeLong(userActivityTimeout);
1480        }
1481
1482        public static final Parcelable.Creator<LayoutParams> CREATOR
1483                    = new Parcelable.Creator<LayoutParams>() {
1484            public LayoutParams createFromParcel(Parcel in) {
1485                return new LayoutParams(in);
1486            }
1487
1488            public LayoutParams[] newArray(int size) {
1489                return new LayoutParams[size];
1490            }
1491        };
1492
1493
1494        public LayoutParams(Parcel in) {
1495            width = in.readInt();
1496            height = in.readInt();
1497            x = in.readInt();
1498            y = in.readInt();
1499            type = in.readInt();
1500            flags = in.readInt();
1501            privateFlags = in.readInt();
1502            softInputMode = in.readInt();
1503            gravity = in.readInt();
1504            horizontalMargin = in.readFloat();
1505            verticalMargin = in.readFloat();
1506            format = in.readInt();
1507            windowAnimations = in.readInt();
1508            alpha = in.readFloat();
1509            dimAmount = in.readFloat();
1510            screenBrightness = in.readFloat();
1511            buttonBrightness = in.readFloat();
1512            rotationAnimation = in.readInt();
1513            token = in.readStrongBinder();
1514            packageName = in.readString();
1515            mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
1516            screenOrientation = in.readInt();
1517            systemUiVisibility = in.readInt();
1518            subtreeSystemUiVisibility = in.readInt();
1519            hasSystemUiListeners = in.readInt() != 0;
1520            inputFeatures = in.readInt();
1521            userActivityTimeout = in.readLong();
1522        }
1523
1524        @SuppressWarnings({"PointlessBitwiseExpression"})
1525        public static final int LAYOUT_CHANGED = 1<<0;
1526        public static final int TYPE_CHANGED = 1<<1;
1527        public static final int FLAGS_CHANGED = 1<<2;
1528        public static final int FORMAT_CHANGED = 1<<3;
1529        public static final int ANIMATION_CHANGED = 1<<4;
1530        public static final int DIM_AMOUNT_CHANGED = 1<<5;
1531        public static final int TITLE_CHANGED = 1<<6;
1532        public static final int ALPHA_CHANGED = 1<<7;
1533        public static final int MEMORY_TYPE_CHANGED = 1<<8;
1534        public static final int SOFT_INPUT_MODE_CHANGED = 1<<9;
1535        public static final int SCREEN_ORIENTATION_CHANGED = 1<<10;
1536        public static final int SCREEN_BRIGHTNESS_CHANGED = 1<<11;
1537        public static final int ROTATION_ANIMATION_CHANGED = 1<<12;
1538        /** {@hide} */
1539        public static final int BUTTON_BRIGHTNESS_CHANGED = 1<<13;
1540        /** {@hide} */
1541        public static final int SYSTEM_UI_VISIBILITY_CHANGED = 1<<14;
1542        /** {@hide} */
1543        public static final int SYSTEM_UI_LISTENER_CHANGED = 1<<15;
1544        /** {@hide} */
1545        public static final int INPUT_FEATURES_CHANGED = 1<<16;
1546        /** {@hide} */
1547        public static final int PRIVATE_FLAGS_CHANGED = 1<<17;
1548        /** {@hide} */
1549        public static final int USER_ACTIVITY_TIMEOUT_CHANGED = 1<<18;
1550        /** {@hide} */
1551        public static final int EVERYTHING_CHANGED = 0xffffffff;
1552
1553        // internal buffer to backup/restore parameters under compatibility mode.
1554        private int[] mCompatibilityParamsBackup = null;
1555
1556        public final int copyFrom(LayoutParams o) {
1557            int changes = 0;
1558
1559            if (width != o.width) {
1560                width = o.width;
1561                changes |= LAYOUT_CHANGED;
1562            }
1563            if (height != o.height) {
1564                height = o.height;
1565                changes |= LAYOUT_CHANGED;
1566            }
1567            if (x != o.x) {
1568                x = o.x;
1569                changes |= LAYOUT_CHANGED;
1570            }
1571            if (y != o.y) {
1572                y = o.y;
1573                changes |= LAYOUT_CHANGED;
1574            }
1575            if (horizontalWeight != o.horizontalWeight) {
1576                horizontalWeight = o.horizontalWeight;
1577                changes |= LAYOUT_CHANGED;
1578            }
1579            if (verticalWeight != o.verticalWeight) {
1580                verticalWeight = o.verticalWeight;
1581                changes |= LAYOUT_CHANGED;
1582            }
1583            if (horizontalMargin != o.horizontalMargin) {
1584                horizontalMargin = o.horizontalMargin;
1585                changes |= LAYOUT_CHANGED;
1586            }
1587            if (verticalMargin != o.verticalMargin) {
1588                verticalMargin = o.verticalMargin;
1589                changes |= LAYOUT_CHANGED;
1590            }
1591            if (type != o.type) {
1592                type = o.type;
1593                changes |= TYPE_CHANGED;
1594            }
1595            if (flags != o.flags) {
1596                flags = o.flags;
1597                changes |= FLAGS_CHANGED;
1598            }
1599            if (privateFlags != o.privateFlags) {
1600                privateFlags = o.privateFlags;
1601                changes |= PRIVATE_FLAGS_CHANGED;
1602            }
1603            if (softInputMode != o.softInputMode) {
1604                softInputMode = o.softInputMode;
1605                changes |= SOFT_INPUT_MODE_CHANGED;
1606            }
1607            if (gravity != o.gravity) {
1608                gravity = o.gravity;
1609                changes |= LAYOUT_CHANGED;
1610            }
1611            if (format != o.format) {
1612                format = o.format;
1613                changes |= FORMAT_CHANGED;
1614            }
1615            if (windowAnimations != o.windowAnimations) {
1616                windowAnimations = o.windowAnimations;
1617                changes |= ANIMATION_CHANGED;
1618            }
1619            if (token == null) {
1620                // NOTE: token only copied if the recipient doesn't
1621                // already have one.
1622                token = o.token;
1623            }
1624            if (packageName == null) {
1625                // NOTE: packageName only copied if the recipient doesn't
1626                // already have one.
1627                packageName = o.packageName;
1628            }
1629            if (!mTitle.equals(o.mTitle)) {
1630                mTitle = o.mTitle;
1631                changes |= TITLE_CHANGED;
1632            }
1633            if (alpha != o.alpha) {
1634                alpha = o.alpha;
1635                changes |= ALPHA_CHANGED;
1636            }
1637            if (dimAmount != o.dimAmount) {
1638                dimAmount = o.dimAmount;
1639                changes |= DIM_AMOUNT_CHANGED;
1640            }
1641            if (screenBrightness != o.screenBrightness) {
1642                screenBrightness = o.screenBrightness;
1643                changes |= SCREEN_BRIGHTNESS_CHANGED;
1644            }
1645            if (buttonBrightness != o.buttonBrightness) {
1646                buttonBrightness = o.buttonBrightness;
1647                changes |= BUTTON_BRIGHTNESS_CHANGED;
1648            }
1649            if (rotationAnimation != o.rotationAnimation) {
1650                rotationAnimation = o.rotationAnimation;
1651                changes |= ROTATION_ANIMATION_CHANGED;
1652            }
1653
1654            if (screenOrientation != o.screenOrientation) {
1655                screenOrientation = o.screenOrientation;
1656                changes |= SCREEN_ORIENTATION_CHANGED;
1657            }
1658
1659            if (systemUiVisibility != o.systemUiVisibility
1660                    || subtreeSystemUiVisibility != o.subtreeSystemUiVisibility) {
1661                systemUiVisibility = o.systemUiVisibility;
1662                subtreeSystemUiVisibility = o.subtreeSystemUiVisibility;
1663                changes |= SYSTEM_UI_VISIBILITY_CHANGED;
1664            }
1665
1666            if (hasSystemUiListeners != o.hasSystemUiListeners) {
1667                hasSystemUiListeners = o.hasSystemUiListeners;
1668                changes |= SYSTEM_UI_LISTENER_CHANGED;
1669            }
1670
1671            if (inputFeatures != o.inputFeatures) {
1672                inputFeatures = o.inputFeatures;
1673                changes |= INPUT_FEATURES_CHANGED;
1674            }
1675
1676            if (userActivityTimeout != o.userActivityTimeout) {
1677                userActivityTimeout = o.userActivityTimeout;
1678                changes |= USER_ACTIVITY_TIMEOUT_CHANGED;
1679            }
1680
1681            return changes;
1682        }
1683
1684        @Override
1685        public String debug(String output) {
1686            output += "Contents of " + this + ":";
1687            Log.d("Debug", output);
1688            output = super.debug("");
1689            Log.d("Debug", output);
1690            Log.d("Debug", "");
1691            Log.d("Debug", "WindowManager.LayoutParams={title=" + mTitle + "}");
1692            return "";
1693        }
1694
1695        @Override
1696        public String toString() {
1697            StringBuilder sb = new StringBuilder(256);
1698            sb.append("WM.LayoutParams{");
1699            sb.append("(");
1700            sb.append(x);
1701            sb.append(',');
1702            sb.append(y);
1703            sb.append(")(");
1704            sb.append((width== MATCH_PARENT ?"fill":(width==WRAP_CONTENT?"wrap":width)));
1705            sb.append('x');
1706            sb.append((height== MATCH_PARENT ?"fill":(height==WRAP_CONTENT?"wrap":height)));
1707            sb.append(")");
1708            if (horizontalMargin != 0) {
1709                sb.append(" hm=");
1710                sb.append(horizontalMargin);
1711            }
1712            if (verticalMargin != 0) {
1713                sb.append(" vm=");
1714                sb.append(verticalMargin);
1715            }
1716            if (gravity != 0) {
1717                sb.append(" gr=#");
1718                sb.append(Integer.toHexString(gravity));
1719            }
1720            if (softInputMode != 0) {
1721                sb.append(" sim=#");
1722                sb.append(Integer.toHexString(softInputMode));
1723            }
1724            sb.append(" ty=");
1725            sb.append(type);
1726            sb.append(" fl=#");
1727            sb.append(Integer.toHexString(flags));
1728            if (privateFlags != 0) {
1729                sb.append(" pfl=0x").append(Integer.toHexString(privateFlags));
1730            }
1731            if (format != PixelFormat.OPAQUE) {
1732                sb.append(" fmt=");
1733                sb.append(format);
1734            }
1735            if (windowAnimations != 0) {
1736                sb.append(" wanim=0x");
1737                sb.append(Integer.toHexString(windowAnimations));
1738            }
1739            if (screenOrientation != ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) {
1740                sb.append(" or=");
1741                sb.append(screenOrientation);
1742            }
1743            if (alpha != 1.0f) {
1744                sb.append(" alpha=");
1745                sb.append(alpha);
1746            }
1747            if (screenBrightness != BRIGHTNESS_OVERRIDE_NONE) {
1748                sb.append(" sbrt=");
1749                sb.append(screenBrightness);
1750            }
1751            if (buttonBrightness != BRIGHTNESS_OVERRIDE_NONE) {
1752                sb.append(" bbrt=");
1753                sb.append(buttonBrightness);
1754            }
1755            if (rotationAnimation != ROTATION_ANIMATION_ROTATE) {
1756                sb.append(" rotAnim=");
1757                sb.append(rotationAnimation);
1758            }
1759            if ((flags & FLAG_COMPATIBLE_WINDOW) != 0) {
1760                sb.append(" compatible=true");
1761            }
1762            if (systemUiVisibility != 0) {
1763                sb.append(" sysui=0x");
1764                sb.append(Integer.toHexString(systemUiVisibility));
1765            }
1766            if (subtreeSystemUiVisibility != 0) {
1767                sb.append(" vsysui=0x");
1768                sb.append(Integer.toHexString(subtreeSystemUiVisibility));
1769            }
1770            if (hasSystemUiListeners) {
1771                sb.append(" sysuil=");
1772                sb.append(hasSystemUiListeners);
1773            }
1774            if (inputFeatures != 0) {
1775                sb.append(" if=0x").append(Integer.toHexString(inputFeatures));
1776            }
1777            if (userActivityTimeout >= 0) {
1778                sb.append(" userActivityTimeout=").append(userActivityTimeout);
1779            }
1780            sb.append('}');
1781            return sb.toString();
1782        }
1783
1784        /**
1785         * Scale the layout params' coordinates and size.
1786         * @hide
1787         */
1788        public void scale(float scale) {
1789            x = (int) (x * scale + 0.5f);
1790            y = (int) (y * scale + 0.5f);
1791            if (width > 0) {
1792                width = (int) (width * scale + 0.5f);
1793            }
1794            if (height > 0) {
1795                height = (int) (height * scale + 0.5f);
1796            }
1797        }
1798
1799        /**
1800         * Backup the layout parameters used in compatibility mode.
1801         * @see LayoutParams#restore()
1802         */
1803        void backup() {
1804            int[] backup = mCompatibilityParamsBackup;
1805            if (backup == null) {
1806                // we backup 4 elements, x, y, width, height
1807                backup = mCompatibilityParamsBackup = new int[4];
1808            }
1809            backup[0] = x;
1810            backup[1] = y;
1811            backup[2] = width;
1812            backup[3] = height;
1813        }
1814
1815        /**
1816         * Restore the layout params' coordinates, size and gravity
1817         * @see LayoutParams#backup()
1818         */
1819        void restore() {
1820            int[] backup = mCompatibilityParamsBackup;
1821            if (backup != null) {
1822                x = backup[0];
1823                y = backup[1];
1824                width = backup[2];
1825                height = backup[3];
1826            }
1827        }
1828
1829        private CharSequence mTitle = "";
1830    }
1831}
1832