WindowManager.java revision 0a4dc2258fa8216920e1a0b83cbf7d3729386e2f
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.annotation.SystemApi;
20import android.app.Presentation;
21import android.content.Context;
22import android.content.pm.ActivityInfo;
23import android.graphics.Insets;
24import android.graphics.PixelFormat;
25import android.graphics.Rect;
26import android.os.IBinder;
27import android.os.Parcel;
28import android.os.Parcelable;
29import android.text.TextUtils;
30import android.util.Log;
31
32
33/**
34 * The interface that apps use to talk to the window manager.
35 * <p>
36 * Use <code>Context.getSystemService(Context.WINDOW_SERVICE)</code> to get one of these.
37 * </p><p>
38 * Each window manager instance is bound to a particular {@link Display}.
39 * To obtain a {@link WindowManager} for a different display, use
40 * {@link Context#createDisplayContext} to obtain a {@link Context} for that
41 * display, then use <code>Context.getSystemService(Context.WINDOW_SERVICE)</code>
42 * to get the WindowManager.
43 * </p><p>
44 * The simplest way to show a window on another display is to create a
45 * {@link Presentation}.  The presentation will automatically obtain a
46 * {@link WindowManager} and {@link Context} for that display.
47 * </p>
48 *
49 * @see android.content.Context#getSystemService
50 * @see android.content.Context#WINDOW_SERVICE
51 */
52public interface WindowManager extends ViewManager {
53    /**
54     * Exception that is thrown when trying to add view whose
55     * {@link LayoutParams} {@link LayoutParams#token}
56     * is invalid.
57     */
58    public static class BadTokenException extends RuntimeException {
59        public BadTokenException() {
60        }
61
62        public BadTokenException(String name) {
63            super(name);
64        }
65    }
66
67    /**
68     * Exception that is thrown when calling {@link #addView} to a secondary display that cannot
69     * be found. See {@link android.app.Presentation} for more information on secondary displays.
70     */
71    public static class InvalidDisplayException extends RuntimeException {
72        public InvalidDisplayException() {
73        }
74
75        public InvalidDisplayException(String name) {
76            super(name);
77        }
78    }
79
80    /**
81     * Returns the {@link Display} upon which this {@link WindowManager} instance
82     * will create new windows.
83     * <p>
84     * Despite the name of this method, the display that is returned is not
85     * necessarily the primary display of the system (see {@link Display#DEFAULT_DISPLAY}).
86     * The returned display could instead be a secondary display that this
87     * window manager instance is managing.  Think of it as the display that
88     * this {@link WindowManager} instance uses by default.
89     * </p><p>
90     * To create windows on a different display, you need to obtain a
91     * {@link WindowManager} for that {@link Display}.  (See the {@link WindowManager}
92     * class documentation for more information.)
93     * </p>
94     *
95     * @return The display that this window manager is managing.
96     */
97    public Display getDefaultDisplay();
98
99    /**
100     * Special variation of {@link #removeView} that immediately invokes
101     * the given view hierarchy's {@link View#onDetachedFromWindow()
102     * View.onDetachedFromWindow()} methods before returning.  This is not
103     * for normal applications; using it correctly requires great care.
104     *
105     * @param view The view to be removed.
106     */
107    public void removeViewImmediate(View view);
108
109    public static class LayoutParams extends ViewGroup.LayoutParams
110            implements Parcelable {
111        /**
112         * X position for this window.  With the default gravity it is ignored.
113         * When using {@link Gravity#LEFT} or {@link Gravity#START} or {@link Gravity#RIGHT} or
114         * {@link Gravity#END} it provides an offset from the given edge.
115         */
116        @ViewDebug.ExportedProperty
117        public int x;
118
119        /**
120         * Y position for this window.  With the default gravity it is ignored.
121         * When using {@link Gravity#TOP} or {@link Gravity#BOTTOM} it provides
122         * an offset from the given edge.
123         */
124        @ViewDebug.ExportedProperty
125        public int y;
126
127        /**
128         * Indicates how much of the extra space will be allocated horizontally
129         * to the view associated with these LayoutParams. Specify 0 if the view
130         * should not be stretched. Otherwise the extra pixels will be pro-rated
131         * among all views whose weight is greater than 0.
132         */
133        @ViewDebug.ExportedProperty
134        public float horizontalWeight;
135
136        /**
137         * Indicates how much of the extra space will be allocated vertically
138         * to the view associated with these LayoutParams. Specify 0 if the view
139         * should not be stretched. Otherwise the extra pixels will be pro-rated
140         * among all views whose weight is greater than 0.
141         */
142        @ViewDebug.ExportedProperty
143        public float verticalWeight;
144
145        /**
146         * The general type of window.  There are three main classes of
147         * window types:
148         * <ul>
149         * <li> <strong>Application windows</strong> (ranging from
150         * {@link #FIRST_APPLICATION_WINDOW} to
151         * {@link #LAST_APPLICATION_WINDOW}) are normal top-level application
152         * windows.  For these types of windows, the {@link #token} must be
153         * set to the token of the activity they are a part of (this will
154         * normally be done for you if {@link #token} is null).
155         * <li> <strong>Sub-windows</strong> (ranging from
156         * {@link #FIRST_SUB_WINDOW} to
157         * {@link #LAST_SUB_WINDOW}) are associated with another top-level
158         * window.  For these types of windows, the {@link #token} must be
159         * the token of the window it is attached to.
160         * <li> <strong>System windows</strong> (ranging from
161         * {@link #FIRST_SYSTEM_WINDOW} to
162         * {@link #LAST_SYSTEM_WINDOW}) are special types of windows for
163         * use by the system for specific purposes.  They should not normally
164         * be used by applications, and a special permission is required
165         * to use them.
166         * </ul>
167         *
168         * @see #TYPE_BASE_APPLICATION
169         * @see #TYPE_APPLICATION
170         * @see #TYPE_APPLICATION_STARTING
171         * @see #TYPE_APPLICATION_PANEL
172         * @see #TYPE_APPLICATION_MEDIA
173         * @see #TYPE_APPLICATION_SUB_PANEL
174         * @see #TYPE_APPLICATION_ABOVE_SUB_PANEL
175         * @see #TYPE_APPLICATION_ATTACHED_DIALOG
176         * @see #TYPE_STATUS_BAR
177         * @see #TYPE_SEARCH_BAR
178         * @see #TYPE_PHONE
179         * @see #TYPE_SYSTEM_ALERT
180         * @see #TYPE_TOAST
181         * @see #TYPE_SYSTEM_OVERLAY
182         * @see #TYPE_PRIORITY_PHONE
183         * @see #TYPE_STATUS_BAR_PANEL
184         * @see #TYPE_SYSTEM_DIALOG
185         * @see #TYPE_KEYGUARD_DIALOG
186         * @see #TYPE_SYSTEM_ERROR
187         * @see #TYPE_INPUT_METHOD
188         * @see #TYPE_INPUT_METHOD_DIALOG
189         */
190        @ViewDebug.ExportedProperty(mapping = {
191            @ViewDebug.IntToString(from = TYPE_BASE_APPLICATION, to = "TYPE_BASE_APPLICATION"),
192            @ViewDebug.IntToString(from = TYPE_APPLICATION, to = "TYPE_APPLICATION"),
193            @ViewDebug.IntToString(from = TYPE_APPLICATION_STARTING, to = "TYPE_APPLICATION_STARTING"),
194            @ViewDebug.IntToString(from = TYPE_APPLICATION_PANEL, to = "TYPE_APPLICATION_PANEL"),
195            @ViewDebug.IntToString(from = TYPE_APPLICATION_MEDIA, to = "TYPE_APPLICATION_MEDIA"),
196            @ViewDebug.IntToString(from = TYPE_APPLICATION_SUB_PANEL, to = "TYPE_APPLICATION_SUB_PANEL"),
197            @ViewDebug.IntToString(from = TYPE_APPLICATION_ABOVE_SUB_PANEL, to = "TYPE_APPLICATION_ABOVE_SUB_PANEL"),
198            @ViewDebug.IntToString(from = TYPE_APPLICATION_ATTACHED_DIALOG, to = "TYPE_APPLICATION_ATTACHED_DIALOG"),
199            @ViewDebug.IntToString(from = TYPE_APPLICATION_MEDIA_OVERLAY, to = "TYPE_APPLICATION_MEDIA_OVERLAY"),
200            @ViewDebug.IntToString(from = TYPE_STATUS_BAR, to = "TYPE_STATUS_BAR"),
201            @ViewDebug.IntToString(from = TYPE_SEARCH_BAR, to = "TYPE_SEARCH_BAR"),
202            @ViewDebug.IntToString(from = TYPE_PHONE, to = "TYPE_PHONE"),
203            @ViewDebug.IntToString(from = TYPE_SYSTEM_ALERT, to = "TYPE_SYSTEM_ALERT"),
204            @ViewDebug.IntToString(from = TYPE_TOAST, to = "TYPE_TOAST"),
205            @ViewDebug.IntToString(from = TYPE_SYSTEM_OVERLAY, to = "TYPE_SYSTEM_OVERLAY"),
206            @ViewDebug.IntToString(from = TYPE_PRIORITY_PHONE, to = "TYPE_PRIORITY_PHONE"),
207            @ViewDebug.IntToString(from = TYPE_SYSTEM_DIALOG, to = "TYPE_SYSTEM_DIALOG"),
208            @ViewDebug.IntToString(from = TYPE_KEYGUARD_DIALOG, to = "TYPE_KEYGUARD_DIALOG"),
209            @ViewDebug.IntToString(from = TYPE_SYSTEM_ERROR, to = "TYPE_SYSTEM_ERROR"),
210            @ViewDebug.IntToString(from = TYPE_INPUT_METHOD, to = "TYPE_INPUT_METHOD"),
211            @ViewDebug.IntToString(from = TYPE_INPUT_METHOD_DIALOG, to = "TYPE_INPUT_METHOD_DIALOG"),
212            @ViewDebug.IntToString(from = TYPE_WALLPAPER, to = "TYPE_WALLPAPER"),
213            @ViewDebug.IntToString(from = TYPE_STATUS_BAR_PANEL, to = "TYPE_STATUS_BAR_PANEL"),
214            @ViewDebug.IntToString(from = TYPE_SECURE_SYSTEM_OVERLAY, to = "TYPE_SECURE_SYSTEM_OVERLAY"),
215            @ViewDebug.IntToString(from = TYPE_DRAG, to = "TYPE_DRAG"),
216            @ViewDebug.IntToString(from = TYPE_STATUS_BAR_SUB_PANEL, to = "TYPE_STATUS_BAR_SUB_PANEL"),
217            @ViewDebug.IntToString(from = TYPE_POINTER, to = "TYPE_POINTER"),
218            @ViewDebug.IntToString(from = TYPE_NAVIGATION_BAR, to = "TYPE_NAVIGATION_BAR"),
219            @ViewDebug.IntToString(from = TYPE_VOLUME_OVERLAY, to = "TYPE_VOLUME_OVERLAY"),
220            @ViewDebug.IntToString(from = TYPE_BOOT_PROGRESS, to = "TYPE_BOOT_PROGRESS"),
221            @ViewDebug.IntToString(from = TYPE_HIDDEN_NAV_CONSUMER, to = "TYPE_HIDDEN_NAV_CONSUMER"),
222            @ViewDebug.IntToString(from = TYPE_DREAM, to = "TYPE_DREAM"),
223            @ViewDebug.IntToString(from = TYPE_NAVIGATION_BAR_PANEL, to = "TYPE_NAVIGATION_BAR_PANEL"),
224            @ViewDebug.IntToString(from = TYPE_DISPLAY_OVERLAY, to = "TYPE_DISPLAY_OVERLAY"),
225            @ViewDebug.IntToString(from = TYPE_MAGNIFICATION_OVERLAY, to = "TYPE_MAGNIFICATION_OVERLAY"),
226            @ViewDebug.IntToString(from = TYPE_PRIVATE_PRESENTATION, to = "TYPE_PRIVATE_PRESENTATION"),
227            @ViewDebug.IntToString(from = TYPE_VOICE_INTERACTION, to = "TYPE_VOICE_INTERACTION"),
228            @ViewDebug.IntToString(from = TYPE_VOICE_INTERACTION_STARTING, to = "TYPE_VOICE_INTERACTION_STARTING"),
229        })
230        public int type;
231
232        /**
233         * Start of window types that represent normal application windows.
234         */
235        public static final int FIRST_APPLICATION_WINDOW = 1;
236
237        /**
238         * Window type: an application window that serves as the "base" window
239         * of the overall application; all other application windows will
240         * appear on top of it.
241         * In multiuser systems shows only on the owning user's window.
242         */
243        public static final int TYPE_BASE_APPLICATION   = 1;
244
245        /**
246         * Window type: a normal application window.  The {@link #token} must be
247         * an Activity token identifying who the window belongs to.
248         * In multiuser systems shows only on the owning user's window.
249         */
250        public static final int TYPE_APPLICATION        = 2;
251
252        /**
253         * Window type: special application window that is displayed while the
254         * application is starting.  Not for use by applications themselves;
255         * this is used by the system to display something until the
256         * application can show its own windows.
257         * In multiuser systems shows on all users' windows.
258         */
259        public static final int TYPE_APPLICATION_STARTING = 3;
260
261        /**
262         * End of types of application windows.
263         */
264        public static final int LAST_APPLICATION_WINDOW = 99;
265
266        /**
267         * Start of types of sub-windows.  The {@link #token} of these windows
268         * must be set to the window they are attached to.  These types of
269         * windows are kept next to their attached window in Z-order, and their
270         * coordinate space is relative to their attached window.
271         */
272        public static final int FIRST_SUB_WINDOW = 1000;
273
274        /**
275         * Window type: a panel on top of an application window.  These windows
276         * appear on top of their attached window.
277         */
278        public static final int TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW;
279
280        /**
281         * Window type: window for showing media (such as video).  These windows
282         * are displayed behind their attached window.
283         */
284        public static final int TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW + 1;
285
286        /**
287         * Window type: a sub-panel on top of an application window.  These
288         * windows are displayed on top their attached window and any
289         * {@link #TYPE_APPLICATION_PANEL} panels.
290         */
291        public static final int TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW + 2;
292
293        /** Window type: like {@link #TYPE_APPLICATION_PANEL}, but layout
294         * of the window happens as that of a top-level window, <em>not</em>
295         * as a child of its container.
296         */
297        public static final int TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW + 3;
298
299        /**
300         * Window type: window for showing overlays on top of media windows.
301         * These windows are displayed between TYPE_APPLICATION_MEDIA and the
302         * application window.  They should be translucent to be useful.  This
303         * is a big ugly hack so:
304         * @hide
305         */
306        public static final int TYPE_APPLICATION_MEDIA_OVERLAY  = FIRST_SUB_WINDOW + 4;
307
308        /**
309         * Window type: a above sub-panel on top of an application window and it's
310         * sub-panel windows. These windows are displayed on top of their attached window
311         * and any {@link #TYPE_APPLICATION_SUB_PANEL} panels.
312         */
313        public static final int TYPE_APPLICATION_ABOVE_SUB_PANEL = FIRST_SUB_WINDOW + 5;
314
315        /**
316         * End of types of sub-windows.
317         */
318        public static final int LAST_SUB_WINDOW = 1999;
319
320        /**
321         * Start of system-specific window types.  These are not normally
322         * created by applications.
323         */
324        public static final int FIRST_SYSTEM_WINDOW     = 2000;
325
326        /**
327         * Window type: the status bar.  There can be only one status bar
328         * window; it is placed at the top of the screen, and all other
329         * windows are shifted down so they are below it.
330         * In multiuser systems shows on all users' windows.
331         */
332        public static final int TYPE_STATUS_BAR         = FIRST_SYSTEM_WINDOW;
333
334        /**
335         * Window type: the search bar.  There can be only one search bar
336         * window; it is placed at the top of the screen.
337         * In multiuser systems shows on all users' windows.
338         */
339        public static final int TYPE_SEARCH_BAR         = FIRST_SYSTEM_WINDOW+1;
340
341        /**
342         * Window type: phone.  These are non-application windows providing
343         * user interaction with the phone (in particular incoming calls).
344         * These windows are normally placed above all applications, but behind
345         * the status bar.
346         * In multiuser systems shows on all users' windows.
347         */
348        public static final int TYPE_PHONE              = FIRST_SYSTEM_WINDOW+2;
349
350        /**
351         * Window type: system window, such as low power alert. These windows
352         * are always on top of application windows.
353         * In multiuser systems shows only on the owning user's window.
354         */
355        public static final int TYPE_SYSTEM_ALERT       = FIRST_SYSTEM_WINDOW+3;
356
357        /**
358         * Window type: keyguard window.
359         * In multiuser systems shows on all users' windows.
360         * @removed
361         */
362        public static final int TYPE_KEYGUARD           = FIRST_SYSTEM_WINDOW+4;
363
364        /**
365         * Window type: transient notifications.
366         * In multiuser systems shows only on the owning user's window.
367         */
368        public static final int TYPE_TOAST              = FIRST_SYSTEM_WINDOW+5;
369
370        /**
371         * Window type: system overlay windows, which need to be displayed
372         * on top of everything else.  These windows must not take input
373         * focus, or they will interfere with the keyguard.
374         * In multiuser systems shows only on the owning user's window.
375         */
376        public static final int TYPE_SYSTEM_OVERLAY     = FIRST_SYSTEM_WINDOW+6;
377
378        /**
379         * Window type: priority phone UI, which needs to be displayed even if
380         * the keyguard is active.  These windows must not take input
381         * focus, or they will interfere with the keyguard.
382         * In multiuser systems shows on all users' windows.
383         */
384        public static final int TYPE_PRIORITY_PHONE     = FIRST_SYSTEM_WINDOW+7;
385
386        /**
387         * Window type: panel that slides out from the status bar
388         * In multiuser systems shows on all users' windows.
389         */
390        public static final int TYPE_SYSTEM_DIALOG      = FIRST_SYSTEM_WINDOW+8;
391
392        /**
393         * Window type: dialogs that the keyguard shows
394         * In multiuser systems shows on all users' windows.
395         */
396        public static final int TYPE_KEYGUARD_DIALOG    = FIRST_SYSTEM_WINDOW+9;
397
398        /**
399         * Window type: internal system error windows, appear on top of
400         * everything they can.
401         * In multiuser systems shows only on the owning user's window.
402         */
403        public static final int TYPE_SYSTEM_ERROR       = FIRST_SYSTEM_WINDOW+10;
404
405        /**
406         * Window type: internal input methods windows, which appear above
407         * the normal UI.  Application windows may be resized or panned to keep
408         * the input focus visible while this window is displayed.
409         * In multiuser systems shows only on the owning user's window.
410         */
411        public static final int TYPE_INPUT_METHOD       = FIRST_SYSTEM_WINDOW+11;
412
413        /**
414         * Window type: internal input methods dialog windows, which appear above
415         * the current input method window.
416         * In multiuser systems shows only on the owning user's window.
417         */
418        public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12;
419
420        /**
421         * Window type: wallpaper window, placed behind any window that wants
422         * to sit on top of the wallpaper.
423         * In multiuser systems shows only on the owning user's window.
424         */
425        public static final int TYPE_WALLPAPER          = FIRST_SYSTEM_WINDOW+13;
426
427        /**
428         * Window type: panel that slides out from over the status bar
429         * In multiuser systems shows on all users' windows.
430         */
431        public static final int TYPE_STATUS_BAR_PANEL   = FIRST_SYSTEM_WINDOW+14;
432
433        /**
434         * Window type: secure system overlay windows, which need to be displayed
435         * on top of everything else.  These windows must not take input
436         * focus, or they will interfere with the keyguard.
437         *
438         * This is exactly like {@link #TYPE_SYSTEM_OVERLAY} except that only the
439         * system itself is allowed to create these overlays.  Applications cannot
440         * obtain permission to create secure system overlays.
441         *
442         * In multiuser systems shows only on the owning user's window.
443         * @hide
444         */
445        public static final int TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15;
446
447        /**
448         * Window type: the drag-and-drop pseudowindow.  There is only one
449         * drag layer (at most), and it is placed on top of all other windows.
450         * In multiuser systems shows only on the owning user's window.
451         * @hide
452         */
453        public static final int TYPE_DRAG               = FIRST_SYSTEM_WINDOW+16;
454
455        /**
456         * Window type: panel that slides out from under the status bar
457         * In multiuser systems shows on all users' windows.
458         * @hide
459         */
460        public static final int TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17;
461
462        /**
463         * Window type: (mouse) pointer
464         * In multiuser systems shows on all users' windows.
465         * @hide
466         */
467        public static final int TYPE_POINTER = FIRST_SYSTEM_WINDOW+18;
468
469        /**
470         * Window type: Navigation bar (when distinct from status bar)
471         * In multiuser systems shows on all users' windows.
472         * @hide
473         */
474        public static final int TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19;
475
476        /**
477         * Window type: The volume level overlay/dialog shown when the user
478         * changes the system volume.
479         * In multiuser systems shows on all users' windows.
480         * @hide
481         */
482        public static final int TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20;
483
484        /**
485         * Window type: The boot progress dialog, goes on top of everything
486         * in the world.
487         * In multiuser systems shows on all users' windows.
488         * @hide
489         */
490        public static final int TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21;
491
492        /**
493         * Window type: Fake window to consume touch events when the navigation
494         * bar is hidden.
495         * In multiuser systems shows on all users' windows.
496         * @hide
497         */
498        public static final int TYPE_HIDDEN_NAV_CONSUMER = FIRST_SYSTEM_WINDOW+22;
499
500        /**
501         * Window type: Dreams (screen saver) window, just above keyguard.
502         * In multiuser systems shows only on the owning user's window.
503         * @hide
504         */
505        public static final int TYPE_DREAM = FIRST_SYSTEM_WINDOW+23;
506
507        /**
508         * Window type: Navigation bar panel (when navigation bar is distinct from status bar)
509         * In multiuser systems shows on all users' windows.
510         * @hide
511         */
512        public static final int TYPE_NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW+24;
513
514        /**
515         * Window type: Display overlay window.  Used to simulate secondary display devices.
516         * In multiuser systems shows on all users' windows.
517         * @hide
518         */
519        public static final int TYPE_DISPLAY_OVERLAY = FIRST_SYSTEM_WINDOW+26;
520
521        /**
522         * Window type: Magnification overlay window. Used to highlight the magnified
523         * portion of a display when accessibility magnification is enabled.
524         * In multiuser systems shows on all users' windows.
525         * @hide
526         */
527        public static final int TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+27;
528
529        /**
530         * Window type: keyguard scrim window. Shows if keyguard needs to be restarted.
531         * In multiuser systems shows on all users' windows.
532         * @hide
533         */
534        public static final int TYPE_KEYGUARD_SCRIM           = FIRST_SYSTEM_WINDOW+29;
535
536        /**
537         * Window type: Window for Presentation on top of private
538         * virtual display.
539         */
540        public static final int TYPE_PRIVATE_PRESENTATION = FIRST_SYSTEM_WINDOW+30;
541
542        /**
543         * Window type: Windows in the voice interaction layer.
544         * @hide
545         */
546        public static final int TYPE_VOICE_INTERACTION = FIRST_SYSTEM_WINDOW+31;
547
548        /**
549         * Window type: Windows that are overlaid <em>only</em> by an {@link
550         * android.accessibilityservice.AccessibilityService} for interception of
551         * user interactions without changing the windows an accessibility service
552         * can introspect. In particular, an accessibility service can introspect
553         * only windows that a sighted user can interact with which is they can touch
554         * these windows or can type into these windows. For example, if there
555         * is a full screen accessibility overlay that is touchable, the windows
556         * below it will be introspectable by an accessibility service regardless
557         * they are covered by a touchable window.
558         */
559        public static final int TYPE_ACCESSIBILITY_OVERLAY = FIRST_SYSTEM_WINDOW+32;
560
561        /**
562         * Window type: Starting window for voice interaction layer.
563         * @hide
564         */
565        public static final int TYPE_VOICE_INTERACTION_STARTING = FIRST_SYSTEM_WINDOW+33;
566
567        /**
568         * End of types of system windows.
569         */
570        public static final int LAST_SYSTEM_WINDOW      = 2999;
571
572        /** @deprecated this is ignored, this value is set automatically when needed. */
573        @Deprecated
574        public static final int MEMORY_TYPE_NORMAL = 0;
575        /** @deprecated this is ignored, this value is set automatically when needed. */
576        @Deprecated
577        public static final int MEMORY_TYPE_HARDWARE = 1;
578        /** @deprecated this is ignored, this value is set automatically when needed. */
579        @Deprecated
580        public static final int MEMORY_TYPE_GPU = 2;
581        /** @deprecated this is ignored, this value is set automatically when needed. */
582        @Deprecated
583        public static final int MEMORY_TYPE_PUSH_BUFFERS = 3;
584
585        /**
586         * @deprecated this is ignored
587         */
588        @Deprecated
589        public int memoryType;
590
591        /** Window flag: as long as this window is visible to the user, allow
592         *  the lock screen to activate while the screen is on.
593         *  This can be used independently, or in combination with
594         *  {@link #FLAG_KEEP_SCREEN_ON} and/or {@link #FLAG_SHOW_WHEN_LOCKED} */
595        public static final int FLAG_ALLOW_LOCK_WHILE_SCREEN_ON     = 0x00000001;
596
597        /** Window flag: everything behind this window will be dimmed.
598         *  Use {@link #dimAmount} to control the amount of dim. */
599        public static final int FLAG_DIM_BEHIND        = 0x00000002;
600
601        /** Window flag: blur everything behind this window.
602         * @deprecated Blurring is no longer supported. */
603        @Deprecated
604        public static final int FLAG_BLUR_BEHIND        = 0x00000004;
605
606        /** Window flag: this window won't ever get key input focus, so the
607         * user can not send key or other button events to it.  Those will
608         * instead go to whatever focusable window is behind it.  This flag
609         * will also enable {@link #FLAG_NOT_TOUCH_MODAL} whether or not that
610         * is explicitly set.
611         *
612         * <p>Setting this flag also implies that the window will not need to
613         * interact with
614         * a soft input method, so it will be Z-ordered and positioned
615         * independently of any active input method (typically this means it
616         * gets Z-ordered on top of the input method, so it can use the full
617         * screen for its content and cover the input method if needed.  You
618         * can use {@link #FLAG_ALT_FOCUSABLE_IM} to modify this behavior. */
619        public static final int FLAG_NOT_FOCUSABLE      = 0x00000008;
620
621        /** Window flag: this window can never receive touch events. */
622        public static final int FLAG_NOT_TOUCHABLE      = 0x00000010;
623
624        /** Window flag: even when this window is focusable (its
625         * {@link #FLAG_NOT_FOCUSABLE} is not set), allow any pointer events
626         * outside of the window to be sent to the windows behind it.  Otherwise
627         * it will consume all pointer events itself, regardless of whether they
628         * are inside of the window. */
629        public static final int FLAG_NOT_TOUCH_MODAL    = 0x00000020;
630
631        /** Window flag: when set, if the device is asleep when the touch
632         * screen is pressed, you will receive this first touch event.  Usually
633         * the first touch event is consumed by the system since the user can
634         * not see what they are pressing on.
635         *
636         * @deprecated This flag has no effect.
637         */
638        @Deprecated
639        public static final int FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040;
640
641        /** Window flag: as long as this window is visible to the user, keep
642         *  the device's screen turned on and bright. */
643        public static final int FLAG_KEEP_SCREEN_ON     = 0x00000080;
644
645        /** Window flag: place the window within the entire screen, ignoring
646         *  decorations around the border (such as the status bar).  The
647         *  window must correctly position its contents to take the screen
648         *  decoration into account.  This flag is normally set for you
649         *  by Window as described in {@link Window#setFlags}. */
650        public static final int FLAG_LAYOUT_IN_SCREEN   = 0x00000100;
651
652        /** Window flag: allow window to extend outside of the screen. */
653        public static final int FLAG_LAYOUT_NO_LIMITS   = 0x00000200;
654
655        /**
656         * Window flag: hide all screen decorations (such as the status bar) while
657         * this window is displayed.  This allows the window to use the entire
658         * display space for itself -- the status bar will be hidden when
659         * an app window with this flag set is on the top layer. A fullscreen window
660         * will ignore a value of {@link #SOFT_INPUT_ADJUST_RESIZE} for the window's
661         * {@link #softInputMode} field; the window will stay fullscreen
662         * and will not resize.
663         *
664         * <p>This flag can be controlled in your theme through the
665         * {@link android.R.attr#windowFullscreen} attribute; this attribute
666         * is automatically set for you in the standard fullscreen themes
667         * such as {@link android.R.style#Theme_NoTitleBar_Fullscreen},
668         * {@link android.R.style#Theme_Black_NoTitleBar_Fullscreen},
669         * {@link android.R.style#Theme_Light_NoTitleBar_Fullscreen},
670         * {@link android.R.style#Theme_Holo_NoActionBar_Fullscreen},
671         * {@link android.R.style#Theme_Holo_Light_NoActionBar_Fullscreen},
672         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_Fullscreen}, and
673         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_Fullscreen}.</p>
674         */
675        public static final int FLAG_FULLSCREEN      = 0x00000400;
676
677        /** Window flag: override {@link #FLAG_FULLSCREEN} and force the
678         *  screen decorations (such as the status bar) to be shown. */
679        public static final int FLAG_FORCE_NOT_FULLSCREEN   = 0x00000800;
680
681        /** Window flag: turn on dithering when compositing this window to
682         *  the screen.
683         * @deprecated This flag is no longer used. */
684        @Deprecated
685        public static final int FLAG_DITHER             = 0x00001000;
686
687        /** Window flag: treat the content of the window as secure, preventing
688         * it from appearing in screenshots or from being viewed on non-secure
689         * displays.
690         *
691         * <p>See {@link android.view.Display#FLAG_SECURE} for more details about
692         * secure surfaces and secure displays.
693         */
694        public static final int FLAG_SECURE             = 0x00002000;
695
696        /** Window flag: a special mode where the layout parameters are used
697         * to perform scaling of the surface when it is composited to the
698         * screen. */
699        public static final int FLAG_SCALED             = 0x00004000;
700
701        /** Window flag: intended for windows that will often be used when the user is
702         * holding the screen against their face, it will aggressively filter the event
703         * stream to prevent unintended presses in this situation that may not be
704         * desired for a particular window, when such an event stream is detected, the
705         * application will receive a CANCEL motion event to indicate this so applications
706         * can handle this accordingly by taking no action on the event
707         * until the finger is released. */
708        public static final int FLAG_IGNORE_CHEEK_PRESSES    = 0x00008000;
709
710        /** Window flag: a special option only for use in combination with
711         * {@link #FLAG_LAYOUT_IN_SCREEN}.  When requesting layout in the
712         * screen your window may appear on top of or behind screen decorations
713         * such as the status bar.  By also including this flag, the window
714         * manager will report the inset rectangle needed to ensure your
715         * content is not covered by screen decorations.  This flag is normally
716         * set for you by Window as described in {@link Window#setFlags}.*/
717        public static final int FLAG_LAYOUT_INSET_DECOR = 0x00010000;
718
719        /** Window flag: invert the state of {@link #FLAG_NOT_FOCUSABLE} with
720         * respect to how this window interacts with the current method.  That
721         * is, if FLAG_NOT_FOCUSABLE is set and this flag is set, then the
722         * window will behave as if it needs to interact with the input method
723         * and thus be placed behind/away from it; if FLAG_NOT_FOCUSABLE is
724         * not set and this flag is set, then the window will behave as if it
725         * doesn't need to interact with the input method and can be placed
726         * to use more space and cover the input method.
727         */
728        public static final int FLAG_ALT_FOCUSABLE_IM = 0x00020000;
729
730        /** Window flag: if you have set {@link #FLAG_NOT_TOUCH_MODAL}, you
731         * can set this flag to receive a single special MotionEvent with
732         * the action
733         * {@link MotionEvent#ACTION_OUTSIDE MotionEvent.ACTION_OUTSIDE} for
734         * touches that occur outside of your window.  Note that you will not
735         * receive the full down/move/up gesture, only the location of the
736         * first down as an ACTION_OUTSIDE.
737         */
738        public static final int FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000;
739
740        /** Window flag: special flag to let windows be shown when the screen
741         * is locked. This will let application windows take precedence over
742         * key guard or any other lock screens. Can be used with
743         * {@link #FLAG_KEEP_SCREEN_ON} to turn screen on and display windows
744         * directly before showing the key guard window.  Can be used with
745         * {@link #FLAG_DISMISS_KEYGUARD} to automatically fully dismisss
746         * non-secure keyguards.  This flag only applies to the top-most
747         * full-screen window.
748         */
749        public static final int FLAG_SHOW_WHEN_LOCKED = 0x00080000;
750
751        /** Window flag: ask that the system wallpaper be shown behind
752         * your window.  The window surface must be translucent to be able
753         * to actually see the wallpaper behind it; this flag just ensures
754         * that the wallpaper surface will be there if this window actually
755         * has translucent regions.
756         *
757         * <p>This flag can be controlled in your theme through the
758         * {@link android.R.attr#windowShowWallpaper} attribute; this attribute
759         * is automatically set for you in the standard wallpaper themes
760         * such as {@link android.R.style#Theme_Wallpaper},
761         * {@link android.R.style#Theme_Wallpaper_NoTitleBar},
762         * {@link android.R.style#Theme_Wallpaper_NoTitleBar_Fullscreen},
763         * {@link android.R.style#Theme_Holo_Wallpaper},
764         * {@link android.R.style#Theme_Holo_Wallpaper_NoTitleBar},
765         * {@link android.R.style#Theme_DeviceDefault_Wallpaper}, and
766         * {@link android.R.style#Theme_DeviceDefault_Wallpaper_NoTitleBar}.</p>
767         */
768        public static final int FLAG_SHOW_WALLPAPER = 0x00100000;
769
770        /** Window flag: when set as a window is being added or made
771         * visible, once the window has been shown then the system will
772         * poke the power manager's user activity (as if the user had woken
773         * up the device) to turn the screen on. */
774        public static final int FLAG_TURN_SCREEN_ON = 0x00200000;
775
776        /** Window flag: when set the window will cause the keyguard to
777         * be dismissed, only if it is not a secure lock keyguard.  Because such
778         * a keyguard is not needed for security, it will never re-appear if
779         * the user navigates to another window (in contrast to
780         * {@link #FLAG_SHOW_WHEN_LOCKED}, which will only temporarily
781         * hide both secure and non-secure keyguards but ensure they reappear
782         * when the user moves to another UI that doesn't hide them).
783         * If the keyguard is currently active and is secure (requires an
784         * unlock pattern) than the user will still need to confirm it before
785         * seeing this window, unless {@link #FLAG_SHOW_WHEN_LOCKED} has
786         * also been set.
787         */
788        public static final int FLAG_DISMISS_KEYGUARD = 0x00400000;
789
790        /** Window flag: when set the window will accept for touch events
791         * outside of its bounds to be sent to other windows that also
792         * support split touch.  When this flag is not set, the first pointer
793         * that goes down determines the window to which all subsequent touches
794         * go until all pointers go up.  When this flag is set, each pointer
795         * (not necessarily the first) that goes down determines the window
796         * to which all subsequent touches of that pointer will go until that
797         * pointer goes up thereby enabling touches with multiple pointers
798         * to be split across multiple windows.
799         */
800        public static final int FLAG_SPLIT_TOUCH = 0x00800000;
801
802        /**
803         * <p>Indicates whether this window should be hardware accelerated.
804         * Requesting hardware acceleration does not guarantee it will happen.</p>
805         *
806         * <p>This flag can be controlled programmatically <em>only</em> to enable
807         * hardware acceleration. To enable hardware acceleration for a given
808         * window programmatically, do the following:</p>
809         *
810         * <pre>
811         * Window w = activity.getWindow(); // in Activity's onCreate() for instance
812         * w.setFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
813         *         WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
814         * </pre>
815         *
816         * <p>It is important to remember that this flag <strong>must</strong>
817         * be set before setting the content view of your activity or dialog.</p>
818         *
819         * <p>This flag cannot be used to disable hardware acceleration after it
820         * was enabled in your manifest using
821         * {@link android.R.attr#hardwareAccelerated}. If you need to selectively
822         * and programmatically disable hardware acceleration (for automated testing
823         * for instance), make sure it is turned off in your manifest and enable it
824         * on your activity or dialog when you need it instead, using the method
825         * described above.</p>
826         *
827         * <p>This flag is automatically set by the system if the
828         * {@link android.R.attr#hardwareAccelerated android:hardwareAccelerated}
829         * XML attribute is set to true on an activity or on the application.</p>
830         */
831        public static final int FLAG_HARDWARE_ACCELERATED = 0x01000000;
832
833        /**
834         * Window flag: allow window contents to extend in to the screen's
835         * overscan area, if there is one.  The window should still correctly
836         * position its contents to take the overscan area into account.
837         *
838         * <p>This flag can be controlled in your theme through the
839         * {@link android.R.attr#windowOverscan} attribute; this attribute
840         * is automatically set for you in the standard overscan themes
841         * such as
842         * {@link android.R.style#Theme_Holo_NoActionBar_Overscan},
843         * {@link android.R.style#Theme_Holo_Light_NoActionBar_Overscan},
844         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_Overscan}, and
845         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_Overscan}.</p>
846         *
847         * <p>When this flag is enabled for a window, its normal content may be obscured
848         * to some degree by the overscan region of the display.  To ensure key parts of
849         * that content are visible to the user, you can use
850         * {@link View#setFitsSystemWindows(boolean) View.setFitsSystemWindows(boolean)}
851         * to set the point in the view hierarchy where the appropriate offsets should
852         * be applied.  (This can be done either by directly calling this function, using
853         * the {@link android.R.attr#fitsSystemWindows} attribute in your view hierarchy,
854         * or implementing you own {@link View#fitSystemWindows(android.graphics.Rect)
855         * View.fitSystemWindows(Rect)} method).</p>
856         *
857         * <p>This mechanism for positioning content elements is identical to its equivalent
858         * use with layout and {@link View#setSystemUiVisibility(int)
859         * View.setSystemUiVisibility(int)}; here is an example layout that will correctly
860         * position its UI elements with this overscan flag is set:</p>
861         *
862         * {@sample development/samples/ApiDemos/res/layout/overscan_activity.xml complete}
863         */
864        public static final int FLAG_LAYOUT_IN_OVERSCAN = 0x02000000;
865
866        /**
867         * Window flag: request a translucent status bar with minimal system-provided
868         * background protection.
869         *
870         * <p>This flag can be controlled in your theme through the
871         * {@link android.R.attr#windowTranslucentStatus} attribute; this attribute
872         * is automatically set for you in the standard translucent decor themes
873         * such as
874         * {@link android.R.style#Theme_Holo_NoActionBar_TranslucentDecor},
875         * {@link android.R.style#Theme_Holo_Light_NoActionBar_TranslucentDecor},
876         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_TranslucentDecor}, and
877         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_TranslucentDecor}.</p>
878         *
879         * <p>When this flag is enabled for a window, it automatically sets
880         * the system UI visibility flags {@link View#SYSTEM_UI_FLAG_LAYOUT_STABLE} and
881         * {@link View#SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN}.</p>
882         */
883        public static final int FLAG_TRANSLUCENT_STATUS = 0x04000000;
884
885        /**
886         * Window flag: request a translucent navigation bar with minimal system-provided
887         * background protection.
888         *
889         * <p>This flag can be controlled in your theme through the
890         * {@link android.R.attr#windowTranslucentNavigation} attribute; this attribute
891         * is automatically set for you in the standard translucent decor themes
892         * such as
893         * {@link android.R.style#Theme_Holo_NoActionBar_TranslucentDecor},
894         * {@link android.R.style#Theme_Holo_Light_NoActionBar_TranslucentDecor},
895         * {@link android.R.style#Theme_DeviceDefault_NoActionBar_TranslucentDecor}, and
896         * {@link android.R.style#Theme_DeviceDefault_Light_NoActionBar_TranslucentDecor}.</p>
897         *
898         * <p>When this flag is enabled for a window, it automatically sets
899         * the system UI visibility flags {@link View#SYSTEM_UI_FLAG_LAYOUT_STABLE} and
900         * {@link View#SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION}.</p>
901         */
902        public static final int FLAG_TRANSLUCENT_NAVIGATION = 0x08000000;
903
904        /**
905         * Flag for a window in local focus mode.
906         * Window in local focus mode can control focus independent of window manager using
907         * {@link Window#setLocalFocus(boolean, boolean)}.
908         * Usually window in this mode will not get touch/key events from window manager, but will
909         * get events only via local injection using {@link Window#injectInputEvent(InputEvent)}.
910         */
911        public static final int FLAG_LOCAL_FOCUS_MODE = 0x10000000;
912
913        /** Window flag: Enable touches to slide out of a window into neighboring
914         * windows in mid-gesture instead of being captured for the duration of
915         * the gesture.
916         *
917         * This flag changes the behavior of touch focus for this window only.
918         * Touches can slide out of the window but they cannot necessarily slide
919         * back in (unless the other window with touch focus permits it).
920         *
921         * {@hide}
922         */
923        public static final int FLAG_SLIPPERY = 0x20000000;
924
925        /**
926         * Window flag: When requesting layout with an attached window, the attached window may
927         * overlap with the screen decorations of the parent window such as the navigation bar. By
928         * including this flag, the window manager will layout the attached window within the decor
929         * frame of the parent window such that it doesn't overlap with screen decorations.
930         */
931        public static final int FLAG_LAYOUT_ATTACHED_IN_DECOR = 0x40000000;
932
933        /**
934         * Flag indicating that this Window is responsible for drawing the background for the
935         * system bars. If set, the system bars are drawn with a transparent background and the
936         * corresponding areas in this window are filled with the colors specified in
937         * {@link Window#getStatusBarColor()} and {@link Window#getNavigationBarColor()}.
938         */
939        public static final int FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS = 0x80000000;
940
941        /**
942         * Various behavioral options/flags.  Default is none.
943         *
944         * @see #FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
945         * @see #FLAG_DIM_BEHIND
946         * @see #FLAG_NOT_FOCUSABLE
947         * @see #FLAG_NOT_TOUCHABLE
948         * @see #FLAG_NOT_TOUCH_MODAL
949         * @see #FLAG_TOUCHABLE_WHEN_WAKING
950         * @see #FLAG_KEEP_SCREEN_ON
951         * @see #FLAG_LAYOUT_IN_SCREEN
952         * @see #FLAG_LAYOUT_NO_LIMITS
953         * @see #FLAG_FULLSCREEN
954         * @see #FLAG_FORCE_NOT_FULLSCREEN
955         * @see #FLAG_SECURE
956         * @see #FLAG_SCALED
957         * @see #FLAG_IGNORE_CHEEK_PRESSES
958         * @see #FLAG_LAYOUT_INSET_DECOR
959         * @see #FLAG_ALT_FOCUSABLE_IM
960         * @see #FLAG_WATCH_OUTSIDE_TOUCH
961         * @see #FLAG_SHOW_WHEN_LOCKED
962         * @see #FLAG_SHOW_WALLPAPER
963         * @see #FLAG_TURN_SCREEN_ON
964         * @see #FLAG_DISMISS_KEYGUARD
965         * @see #FLAG_SPLIT_TOUCH
966         * @see #FLAG_HARDWARE_ACCELERATED
967         * @see #FLAG_LOCAL_FOCUS_MODE
968         * @see #FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS
969         */
970        @ViewDebug.ExportedProperty(flagMapping = {
971            @ViewDebug.FlagToString(mask = FLAG_ALLOW_LOCK_WHILE_SCREEN_ON, equals = FLAG_ALLOW_LOCK_WHILE_SCREEN_ON,
972                    name = "FLAG_ALLOW_LOCK_WHILE_SCREEN_ON"),
973            @ViewDebug.FlagToString(mask = FLAG_DIM_BEHIND, equals = FLAG_DIM_BEHIND,
974                    name = "FLAG_DIM_BEHIND"),
975            @ViewDebug.FlagToString(mask = FLAG_BLUR_BEHIND, equals = FLAG_BLUR_BEHIND,
976                    name = "FLAG_BLUR_BEHIND"),
977            @ViewDebug.FlagToString(mask = FLAG_NOT_FOCUSABLE, equals = FLAG_NOT_FOCUSABLE,
978                    name = "FLAG_NOT_FOCUSABLE"),
979            @ViewDebug.FlagToString(mask = FLAG_NOT_TOUCHABLE, equals = FLAG_NOT_TOUCHABLE,
980                    name = "FLAG_NOT_TOUCHABLE"),
981            @ViewDebug.FlagToString(mask = FLAG_NOT_TOUCH_MODAL, equals = FLAG_NOT_TOUCH_MODAL,
982                    name = "FLAG_NOT_TOUCH_MODAL"),
983            @ViewDebug.FlagToString(mask = FLAG_TOUCHABLE_WHEN_WAKING, equals = FLAG_TOUCHABLE_WHEN_WAKING,
984                    name = "FLAG_TOUCHABLE_WHEN_WAKING"),
985            @ViewDebug.FlagToString(mask = FLAG_KEEP_SCREEN_ON, equals = FLAG_KEEP_SCREEN_ON,
986                    name = "FLAG_KEEP_SCREEN_ON"),
987            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_IN_SCREEN, equals = FLAG_LAYOUT_IN_SCREEN,
988                    name = "FLAG_LAYOUT_IN_SCREEN"),
989            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_NO_LIMITS, equals = FLAG_LAYOUT_NO_LIMITS,
990                    name = "FLAG_LAYOUT_NO_LIMITS"),
991            @ViewDebug.FlagToString(mask = FLAG_FULLSCREEN, equals = FLAG_FULLSCREEN,
992                    name = "FLAG_FULLSCREEN"),
993            @ViewDebug.FlagToString(mask = FLAG_FORCE_NOT_FULLSCREEN, equals = FLAG_FORCE_NOT_FULLSCREEN,
994                    name = "FLAG_FORCE_NOT_FULLSCREEN"),
995            @ViewDebug.FlagToString(mask = FLAG_DITHER, equals = FLAG_DITHER,
996                    name = "FLAG_DITHER"),
997            @ViewDebug.FlagToString(mask = FLAG_SECURE, equals = FLAG_SECURE,
998                    name = "FLAG_SECURE"),
999            @ViewDebug.FlagToString(mask = FLAG_SCALED, equals = FLAG_SCALED,
1000                    name = "FLAG_SCALED"),
1001            @ViewDebug.FlagToString(mask = FLAG_IGNORE_CHEEK_PRESSES, equals = FLAG_IGNORE_CHEEK_PRESSES,
1002                    name = "FLAG_IGNORE_CHEEK_PRESSES"),
1003            @ViewDebug.FlagToString(mask = FLAG_LAYOUT_INSET_DECOR, equals = FLAG_LAYOUT_INSET_DECOR,
1004                    name = "FLAG_LAYOUT_INSET_DECOR"),
1005            @ViewDebug.FlagToString(mask = FLAG_ALT_FOCUSABLE_IM, equals = FLAG_ALT_FOCUSABLE_IM,
1006                    name = "FLAG_ALT_FOCUSABLE_IM"),
1007            @ViewDebug.FlagToString(mask = FLAG_WATCH_OUTSIDE_TOUCH, equals = FLAG_WATCH_OUTSIDE_TOUCH,
1008                    name = "FLAG_WATCH_OUTSIDE_TOUCH"),
1009            @ViewDebug.FlagToString(mask = FLAG_SHOW_WHEN_LOCKED, equals = FLAG_SHOW_WHEN_LOCKED,
1010                    name = "FLAG_SHOW_WHEN_LOCKED"),
1011            @ViewDebug.FlagToString(mask = FLAG_SHOW_WALLPAPER, equals = FLAG_SHOW_WALLPAPER,
1012                    name = "FLAG_SHOW_WALLPAPER"),
1013            @ViewDebug.FlagToString(mask = FLAG_TURN_SCREEN_ON, equals = FLAG_TURN_SCREEN_ON,
1014                    name = "FLAG_TURN_SCREEN_ON"),
1015            @ViewDebug.FlagToString(mask = FLAG_DISMISS_KEYGUARD, equals = FLAG_DISMISS_KEYGUARD,
1016                    name = "FLAG_DISMISS_KEYGUARD"),
1017            @ViewDebug.FlagToString(mask = FLAG_SPLIT_TOUCH, equals = FLAG_SPLIT_TOUCH,
1018                    name = "FLAG_SPLIT_TOUCH"),
1019            @ViewDebug.FlagToString(mask = FLAG_HARDWARE_ACCELERATED, equals = FLAG_HARDWARE_ACCELERATED,
1020                    name = "FLAG_HARDWARE_ACCELERATED"),
1021            @ViewDebug.FlagToString(mask = FLAG_LOCAL_FOCUS_MODE, equals = FLAG_LOCAL_FOCUS_MODE,
1022                    name = "FLAG_LOCAL_FOCUS_MODE"),
1023            @ViewDebug.FlagToString(mask = FLAG_TRANSLUCENT_STATUS, equals = FLAG_TRANSLUCENT_STATUS,
1024                    name = "FLAG_TRANSLUCENT_STATUS"),
1025            @ViewDebug.FlagToString(mask = FLAG_TRANSLUCENT_NAVIGATION, equals = FLAG_TRANSLUCENT_NAVIGATION,
1026                    name = "FLAG_TRANSLUCENT_NAVIGATION"),
1027            @ViewDebug.FlagToString(mask = FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS, equals = FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
1028                    name = "FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS")
1029        }, formatToHexString = true)
1030        public int flags;
1031
1032        /**
1033         * If the window has requested hardware acceleration, but this is not
1034         * allowed in the process it is in, then still render it as if it is
1035         * hardware accelerated.  This is used for the starting preview windows
1036         * in the system process, which don't need to have the overhead of
1037         * hardware acceleration (they are just a static rendering), but should
1038         * be rendered as such to match the actual window of the app even if it
1039         * is hardware accelerated.
1040         * Even if the window isn't hardware accelerated, still do its rendering
1041         * as if it was.
1042         * Like {@link #FLAG_HARDWARE_ACCELERATED} except for trusted system windows
1043         * that need hardware acceleration (e.g. LockScreen), where hardware acceleration
1044         * is generally disabled. This flag must be specified in addition to
1045         * {@link #FLAG_HARDWARE_ACCELERATED} to enable hardware acceleration for system
1046         * windows.
1047         *
1048         * @hide
1049         */
1050        public static final int PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED = 0x00000001;
1051
1052        /**
1053         * In the system process, we globally do not use hardware acceleration
1054         * because there are many threads doing UI there and they conflict.
1055         * If certain parts of the UI that really do want to use hardware
1056         * acceleration, this flag can be set to force it.  This is basically
1057         * for the lock screen.  Anyone else using it, you are probably wrong.
1058         *
1059         * @hide
1060         */
1061        public static final int PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED = 0x00000002;
1062
1063        /**
1064         * By default, wallpapers are sent new offsets when the wallpaper is scrolled. Wallpapers
1065         * may elect to skip these notifications if they are not doing anything productive with
1066         * them (they do not affect the wallpaper scrolling operation) by calling
1067         * {@link
1068         * android.service.wallpaper.WallpaperService.Engine#setOffsetNotificationsEnabled(boolean)}.
1069         *
1070         * @hide
1071         */
1072        public static final int PRIVATE_FLAG_WANTS_OFFSET_NOTIFICATIONS = 0x00000004;
1073
1074        /** In a multiuser system if this flag is set and the owner is a system process then this
1075         * window will appear on all user screens. This overrides the default behavior of window
1076         * types that normally only appear on the owning user's screen. Refer to each window type
1077         * to determine its default behavior.
1078         *
1079         * {@hide} */
1080        public static final int PRIVATE_FLAG_SHOW_FOR_ALL_USERS = 0x00000010;
1081
1082        /**
1083         * Never animate position changes of the window.
1084         *
1085         * {@hide} */
1086        public static final int PRIVATE_FLAG_NO_MOVE_ANIMATION = 0x00000040;
1087
1088        /** Window flag: special flag to limit the size of the window to be
1089         * original size ([320x480] x density). Used to create window for applications
1090         * running under compatibility mode.
1091         *
1092         * {@hide} */
1093        public static final int PRIVATE_FLAG_COMPATIBLE_WINDOW = 0x00000080;
1094
1095        /** Window flag: a special option intended for system dialogs.  When
1096         * this flag is set, the window will demand focus unconditionally when
1097         * it is created.
1098         * {@hide} */
1099        public static final int PRIVATE_FLAG_SYSTEM_ERROR = 0x00000100;
1100
1101        /** Window flag: maintain the previous translucent decor state when this window
1102         * becomes top-most.
1103         * {@hide} */
1104        public static final int PRIVATE_FLAG_INHERIT_TRANSLUCENT_DECOR = 0x00000200;
1105
1106        /**
1107         * Flag whether the current window is a keyguard window, meaning that it will hide all other
1108         * windows behind it except for windows with flag {@link #FLAG_SHOW_WHEN_LOCKED} set.
1109         * Further, this can only be set by {@link LayoutParams#TYPE_STATUS_BAR}.
1110         * {@hide}
1111         */
1112        public static final int PRIVATE_FLAG_KEYGUARD = 0x00000400;
1113
1114        /**
1115         * Flag that prevents the wallpaper behind the current window from receiving touch events.
1116         *
1117         * {@hide}
1118         */
1119        public static final int PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS = 0x00000800;
1120
1121        /**
1122         * Control flags that are private to the platform.
1123         * @hide
1124         */
1125        public int privateFlags;
1126
1127        /**
1128         * Value for {@link #needsMenuKey} for a window that has not explicitly specified if it
1129         * needs {@link #NEEDS_MENU_SET_TRUE} or doesn't need {@link #NEEDS_MENU_SET_FALSE} a menu
1130         * key. For this case, we should look at windows behind it to determine the appropriate
1131         * value.
1132         *
1133         * @hide
1134         */
1135        public static final int NEEDS_MENU_UNSET = 0;
1136
1137        /**
1138         * Value for {@link #needsMenuKey} for a window that has explicitly specified it needs a
1139         * menu key.
1140         *
1141         * @hide
1142         */
1143        public static final int NEEDS_MENU_SET_TRUE = 1;
1144
1145        /**
1146         * Value for {@link #needsMenuKey} for a window that has explicitly specified it doesn't
1147         * needs a menu key.
1148         *
1149         * @hide
1150         */
1151        public static final int NEEDS_MENU_SET_FALSE = 2;
1152
1153        /**
1154         * State variable for a window belonging to an activity that responds to
1155         * {@link KeyEvent#KEYCODE_MENU} and therefore needs a Menu key. For devices where Menu is a
1156         * physical button this variable is ignored, but on devices where the Menu key is drawn in
1157         * software it may be hidden unless this variable is set to {@link #NEEDS_MENU_SET_TRUE}.
1158         *
1159         *  (Note that Action Bars, when available, are the preferred way to offer additional
1160         * functions otherwise accessed via an options menu.)
1161         *
1162         * {@hide}
1163         */
1164        public int needsMenuKey = NEEDS_MENU_UNSET;
1165
1166        /**
1167         * Given a particular set of window manager flags, determine whether
1168         * such a window may be a target for an input method when it has
1169         * focus.  In particular, this checks the
1170         * {@link #FLAG_NOT_FOCUSABLE} and {@link #FLAG_ALT_FOCUSABLE_IM}
1171         * flags and returns true if the combination of the two corresponds
1172         * to a window that needs to be behind the input method so that the
1173         * user can type into it.
1174         *
1175         * @param flags The current window manager flags.
1176         *
1177         * @return Returns true if such a window should be behind/interact
1178         * with an input method, false if not.
1179         */
1180        public static boolean mayUseInputMethod(int flags) {
1181            switch (flags&(FLAG_NOT_FOCUSABLE|FLAG_ALT_FOCUSABLE_IM)) {
1182                case 0:
1183                case FLAG_NOT_FOCUSABLE|FLAG_ALT_FOCUSABLE_IM:
1184                    return true;
1185            }
1186            return false;
1187        }
1188
1189        /**
1190         * Mask for {@link #softInputMode} of the bits that determine the
1191         * desired visibility state of the soft input area for this window.
1192         */
1193        public static final int SOFT_INPUT_MASK_STATE = 0x0f;
1194
1195        /**
1196         * Visibility state for {@link #softInputMode}: no state has been specified.
1197         */
1198        public static final int SOFT_INPUT_STATE_UNSPECIFIED = 0;
1199
1200        /**
1201         * Visibility state for {@link #softInputMode}: please don't change the state of
1202         * the soft input area.
1203         */
1204        public static final int SOFT_INPUT_STATE_UNCHANGED = 1;
1205
1206        /**
1207         * Visibility state for {@link #softInputMode}: please hide any soft input
1208         * area when normally appropriate (when the user is navigating
1209         * forward to your window).
1210         */
1211        public static final int SOFT_INPUT_STATE_HIDDEN = 2;
1212
1213        /**
1214         * Visibility state for {@link #softInputMode}: please always hide any
1215         * soft input area when this window receives focus.
1216         */
1217        public static final int SOFT_INPUT_STATE_ALWAYS_HIDDEN = 3;
1218
1219        /**
1220         * Visibility state for {@link #softInputMode}: please show the soft
1221         * input area when normally appropriate (when the user is navigating
1222         * forward to your window).
1223         */
1224        public static final int SOFT_INPUT_STATE_VISIBLE = 4;
1225
1226        /**
1227         * Visibility state for {@link #softInputMode}: please always make the
1228         * soft input area visible when this window receives input focus.
1229         */
1230        public static final int SOFT_INPUT_STATE_ALWAYS_VISIBLE = 5;
1231
1232        /**
1233         * Mask for {@link #softInputMode} of the bits that determine the
1234         * way that the window should be adjusted to accommodate the soft
1235         * input window.
1236         */
1237        public static final int SOFT_INPUT_MASK_ADJUST = 0xf0;
1238
1239        /** Adjustment option for {@link #softInputMode}: nothing specified.
1240         * The system will try to pick one or
1241         * the other depending on the contents of the window.
1242         */
1243        public static final int SOFT_INPUT_ADJUST_UNSPECIFIED = 0x00;
1244
1245        /** Adjustment option for {@link #softInputMode}: set to allow the
1246         * window to be resized when an input
1247         * method is shown, so that its contents are not covered by the input
1248         * method.  This can <em>not</em> be combined with
1249         * {@link #SOFT_INPUT_ADJUST_PAN}; if
1250         * neither of these are set, then the system will try to pick one or
1251         * the other depending on the contents of the window. If the window's
1252         * layout parameter flags include {@link #FLAG_FULLSCREEN}, this
1253         * value for {@link #softInputMode} will be ignored; the window will
1254         * not resize, but will stay fullscreen.
1255         */
1256        public static final int SOFT_INPUT_ADJUST_RESIZE = 0x10;
1257
1258        /** Adjustment option for {@link #softInputMode}: set to have a window
1259         * pan when an input method is
1260         * shown, so it doesn't need to deal with resizing but just panned
1261         * by the framework to ensure the current input focus is visible.  This
1262         * can <em>not</em> be combined with {@link #SOFT_INPUT_ADJUST_RESIZE}; if
1263         * neither of these are set, then the system will try to pick one or
1264         * the other depending on the contents of the window.
1265         */
1266        public static final int SOFT_INPUT_ADJUST_PAN = 0x20;
1267
1268        /** Adjustment option for {@link #softInputMode}: set to have a window
1269         * not adjust for a shown input method.  The window will not be resized,
1270         * and it will not be panned to make its focus visible.
1271         */
1272        public static final int SOFT_INPUT_ADJUST_NOTHING = 0x30;
1273
1274        /**
1275         * Bit for {@link #softInputMode}: set when the user has navigated
1276         * forward to the window.  This is normally set automatically for
1277         * you by the system, though you may want to set it in certain cases
1278         * when you are displaying a window yourself.  This flag will always
1279         * be cleared automatically after the window is displayed.
1280         */
1281        public static final int SOFT_INPUT_IS_FORWARD_NAVIGATION = 0x100;
1282
1283        /**
1284         * Desired operating mode for any soft input area.  May be any combination
1285         * of:
1286         *
1287         * <ul>
1288         * <li> One of the visibility states
1289         * {@link #SOFT_INPUT_STATE_UNSPECIFIED}, {@link #SOFT_INPUT_STATE_UNCHANGED},
1290         * {@link #SOFT_INPUT_STATE_HIDDEN}, {@link #SOFT_INPUT_STATE_ALWAYS_VISIBLE}, or
1291         * {@link #SOFT_INPUT_STATE_VISIBLE}.
1292         * <li> One of the adjustment options
1293         * {@link #SOFT_INPUT_ADJUST_UNSPECIFIED},
1294         * {@link #SOFT_INPUT_ADJUST_RESIZE}, or
1295         * {@link #SOFT_INPUT_ADJUST_PAN}.
1296         * </ul>
1297         *
1298         *
1299         * <p>This flag can be controlled in your theme through the
1300         * {@link android.R.attr#windowSoftInputMode} attribute.</p>
1301         */
1302        public int softInputMode;
1303
1304        /**
1305         * Placement of window within the screen as per {@link Gravity}.  Both
1306         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1307         * android.graphics.Rect) Gravity.apply} and
1308         * {@link Gravity#applyDisplay(int, android.graphics.Rect, android.graphics.Rect)
1309         * Gravity.applyDisplay} are used during window layout, with this value
1310         * given as the desired gravity.  For example you can specify
1311         * {@link Gravity#DISPLAY_CLIP_HORIZONTAL Gravity.DISPLAY_CLIP_HORIZONTAL} and
1312         * {@link Gravity#DISPLAY_CLIP_VERTICAL Gravity.DISPLAY_CLIP_VERTICAL} here
1313         * to control the behavior of
1314         * {@link Gravity#applyDisplay(int, android.graphics.Rect, android.graphics.Rect)
1315         * Gravity.applyDisplay}.
1316         *
1317         * @see Gravity
1318         */
1319        public int gravity;
1320
1321        /**
1322         * The horizontal margin, as a percentage of the container's width,
1323         * between the container and the widget.  See
1324         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1325         * android.graphics.Rect) Gravity.apply} for how this is used.  This
1326         * field is added with {@link #x} to supply the <var>xAdj</var> parameter.
1327         */
1328        public float horizontalMargin;
1329
1330        /**
1331         * The vertical margin, as a percentage of the container's height,
1332         * between the container and the widget.  See
1333         * {@link Gravity#apply(int, int, int, android.graphics.Rect, int, int,
1334         * android.graphics.Rect) Gravity.apply} for how this is used.  This
1335         * field is added with {@link #y} to supply the <var>yAdj</var> parameter.
1336         */
1337        public float verticalMargin;
1338
1339        /**
1340         * Positive insets between the drawing surface and window content.
1341         *
1342         * @hide
1343         */
1344        public final Rect surfaceInsets = new Rect();
1345
1346        /**
1347         * Whether the surface insets have been manually set. When set to
1348         * {@code false}, the view root will automatically determine the
1349         * appropriate surface insets.
1350         *
1351         * @see #surfaceInsets
1352         * @hide
1353         */
1354        public boolean hasManualSurfaceInsets;
1355
1356        /**
1357         * The desired bitmap format.  May be one of the constants in
1358         * {@link android.graphics.PixelFormat}.  Default is OPAQUE.
1359         */
1360        public int format;
1361
1362        /**
1363         * A style resource defining the animations to use for this window.
1364         * This must be a system resource; it can not be an application resource
1365         * because the window manager does not have access to applications.
1366         */
1367        public int windowAnimations;
1368
1369        /**
1370         * An alpha value to apply to this entire window.
1371         * An alpha of 1.0 means fully opaque and 0.0 means fully transparent
1372         */
1373        public float alpha = 1.0f;
1374
1375        /**
1376         * When {@link #FLAG_DIM_BEHIND} is set, this is the amount of dimming
1377         * to apply.  Range is from 1.0 for completely opaque to 0.0 for no
1378         * dim.
1379         */
1380        public float dimAmount = 1.0f;
1381
1382        /**
1383         * Default value for {@link #screenBrightness} and {@link #buttonBrightness}
1384         * indicating that the brightness value is not overridden for this window
1385         * and normal brightness policy should be used.
1386         */
1387        public static final float BRIGHTNESS_OVERRIDE_NONE = -1.0f;
1388
1389        /**
1390         * Value for {@link #screenBrightness} and {@link #buttonBrightness}
1391         * indicating that the screen or button backlight brightness should be set
1392         * to the lowest value when this window is in front.
1393         */
1394        public static final float BRIGHTNESS_OVERRIDE_OFF = 0.0f;
1395
1396        /**
1397         * Value for {@link #screenBrightness} and {@link #buttonBrightness}
1398         * indicating that the screen or button backlight brightness should be set
1399         * to the hightest value when this window is in front.
1400         */
1401        public static final float BRIGHTNESS_OVERRIDE_FULL = 1.0f;
1402
1403        /**
1404         * This can be used to override the user's preferred brightness of
1405         * the screen.  A value of less than 0, the default, means to use the
1406         * preferred screen brightness.  0 to 1 adjusts the brightness from
1407         * dark to full bright.
1408         */
1409        public float screenBrightness = BRIGHTNESS_OVERRIDE_NONE;
1410
1411        /**
1412         * This can be used to override the standard behavior of the button and
1413         * keyboard backlights.  A value of less than 0, the default, means to
1414         * use the standard backlight behavior.  0 to 1 adjusts the brightness
1415         * from dark to full bright.
1416         */
1417        public float buttonBrightness = BRIGHTNESS_OVERRIDE_NONE;
1418
1419        /**
1420         * Value for {@link #rotationAnimation} to define the animation used to
1421         * specify that this window will rotate in or out following a rotation.
1422         */
1423        public static final int ROTATION_ANIMATION_ROTATE = 0;
1424
1425        /**
1426         * Value for {@link #rotationAnimation} to define the animation used to
1427         * specify that this window will fade in or out following a rotation.
1428         */
1429        public static final int ROTATION_ANIMATION_CROSSFADE = 1;
1430
1431        /**
1432         * Value for {@link #rotationAnimation} to define the animation used to
1433         * specify that this window will immediately disappear or appear following
1434         * a rotation.
1435         */
1436        public static final int ROTATION_ANIMATION_JUMPCUT = 2;
1437
1438        /**
1439         * Define the exit and entry animations used on this window when the device is rotated.
1440         * This only has an affect if the incoming and outgoing topmost
1441         * opaque windows have the #FLAG_FULLSCREEN bit set and are not covered
1442         * by other windows. All other situations default to the
1443         * {@link #ROTATION_ANIMATION_ROTATE} behavior.
1444         *
1445         * @see #ROTATION_ANIMATION_ROTATE
1446         * @see #ROTATION_ANIMATION_CROSSFADE
1447         * @see #ROTATION_ANIMATION_JUMPCUT
1448         */
1449        public int rotationAnimation = ROTATION_ANIMATION_ROTATE;
1450
1451        /**
1452         * Identifier for this window.  This will usually be filled in for
1453         * you.
1454         */
1455        public IBinder token = null;
1456
1457        /**
1458         * Name of the package owning this window.
1459         */
1460        public String packageName = null;
1461
1462        /**
1463         * Specific orientation value for a window.
1464         * May be any of the same values allowed
1465         * for {@link android.content.pm.ActivityInfo#screenOrientation}.
1466         * If not set, a default value of
1467         * {@link android.content.pm.ActivityInfo#SCREEN_ORIENTATION_UNSPECIFIED}
1468         * will be used.
1469         */
1470        public int screenOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
1471
1472        /**
1473         * The preferred refresh rate for the window.
1474         *
1475         * This must be one of the supported refresh rates obtained for the display(s) the window
1476         * is on.
1477         *
1478         * @see Display#getSupportedRefreshRates()
1479         */
1480        public float preferredRefreshRate;
1481
1482        /**
1483         * Control the visibility of the status bar.
1484         *
1485         * @see View#STATUS_BAR_VISIBLE
1486         * @see View#STATUS_BAR_HIDDEN
1487         */
1488        public int systemUiVisibility;
1489
1490        /**
1491         * @hide
1492         * The ui visibility as requested by the views in this hierarchy.
1493         * the combined value should be systemUiVisibility | subtreeSystemUiVisibility.
1494         */
1495        public int subtreeSystemUiVisibility;
1496
1497        /**
1498         * Get callbacks about the system ui visibility changing.
1499         *
1500         * TODO: Maybe there should be a bitfield of optional callbacks that we need.
1501         *
1502         * @hide
1503         */
1504        public boolean hasSystemUiListeners;
1505
1506        /**
1507         * When this window has focus, disable touch pad pointer gesture processing.
1508         * The window will receive raw position updates from the touch pad instead
1509         * of pointer movements and synthetic touch events.
1510         *
1511         * @hide
1512         */
1513        public static final int INPUT_FEATURE_DISABLE_POINTER_GESTURES = 0x00000001;
1514
1515        /**
1516         * Does not construct an input channel for this window.  The channel will therefore
1517         * be incapable of receiving input.
1518         *
1519         * @hide
1520         */
1521        public static final int INPUT_FEATURE_NO_INPUT_CHANNEL = 0x00000002;
1522
1523        /**
1524         * When this window has focus, does not call user activity for all input events so
1525         * the application will have to do it itself.  Should only be used by
1526         * the keyguard and phone app.
1527         * <p>
1528         * Should only be used by the keyguard and phone app.
1529         * </p>
1530         *
1531         * @hide
1532         */
1533        public static final int INPUT_FEATURE_DISABLE_USER_ACTIVITY = 0x00000004;
1534
1535        /**
1536         * Control special features of the input subsystem.
1537         *
1538         * @see #INPUT_FEATURE_DISABLE_POINTER_GESTURES
1539         * @see #INPUT_FEATURE_NO_INPUT_CHANNEL
1540         * @see #INPUT_FEATURE_DISABLE_USER_ACTIVITY
1541         * @hide
1542         */
1543        public int inputFeatures;
1544
1545        /**
1546         * Sets the number of milliseconds before the user activity timeout occurs
1547         * when this window has focus.  A value of -1 uses the standard timeout.
1548         * A value of 0 uses the minimum support display timeout.
1549         * <p>
1550         * This property can only be used to reduce the user specified display timeout;
1551         * it can never make the timeout longer than it normally would be.
1552         * </p><p>
1553         * Should only be used by the keyguard and phone app.
1554         * </p>
1555         *
1556         * @hide
1557         */
1558        public long userActivityTimeout = -1;
1559
1560        public LayoutParams() {
1561            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1562            type = TYPE_APPLICATION;
1563            format = PixelFormat.OPAQUE;
1564        }
1565
1566        public LayoutParams(int _type) {
1567            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1568            type = _type;
1569            format = PixelFormat.OPAQUE;
1570        }
1571
1572        public LayoutParams(int _type, int _flags) {
1573            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1574            type = _type;
1575            flags = _flags;
1576            format = PixelFormat.OPAQUE;
1577        }
1578
1579        public LayoutParams(int _type, int _flags, int _format) {
1580            super(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
1581            type = _type;
1582            flags = _flags;
1583            format = _format;
1584        }
1585
1586        public LayoutParams(int w, int h, int _type, int _flags, int _format) {
1587            super(w, h);
1588            type = _type;
1589            flags = _flags;
1590            format = _format;
1591        }
1592
1593        public LayoutParams(int w, int h, int xpos, int ypos, int _type,
1594                int _flags, int _format) {
1595            super(w, h);
1596            x = xpos;
1597            y = ypos;
1598            type = _type;
1599            flags = _flags;
1600            format = _format;
1601        }
1602
1603        public final void setTitle(CharSequence title) {
1604            if (null == title)
1605                title = "";
1606
1607            mTitle = TextUtils.stringOrSpannedString(title);
1608        }
1609
1610        public final CharSequence getTitle() {
1611            return mTitle;
1612        }
1613
1614        /** @hide */
1615        @SystemApi
1616        public final void setUserActivityTimeout(long timeout) {
1617            userActivityTimeout = timeout;
1618        }
1619
1620        /** @hide */
1621        @SystemApi
1622        public final long getUserActivityTimeout() {
1623            return userActivityTimeout;
1624        }
1625
1626        public int describeContents() {
1627            return 0;
1628        }
1629
1630        public void writeToParcel(Parcel out, int parcelableFlags) {
1631            out.writeInt(width);
1632            out.writeInt(height);
1633            out.writeInt(x);
1634            out.writeInt(y);
1635            out.writeInt(type);
1636            out.writeInt(flags);
1637            out.writeInt(privateFlags);
1638            out.writeInt(softInputMode);
1639            out.writeInt(gravity);
1640            out.writeFloat(horizontalMargin);
1641            out.writeFloat(verticalMargin);
1642            out.writeInt(format);
1643            out.writeInt(windowAnimations);
1644            out.writeFloat(alpha);
1645            out.writeFloat(dimAmount);
1646            out.writeFloat(screenBrightness);
1647            out.writeFloat(buttonBrightness);
1648            out.writeInt(rotationAnimation);
1649            out.writeStrongBinder(token);
1650            out.writeString(packageName);
1651            TextUtils.writeToParcel(mTitle, out, parcelableFlags);
1652            out.writeInt(screenOrientation);
1653            out.writeFloat(preferredRefreshRate);
1654            out.writeInt(systemUiVisibility);
1655            out.writeInt(subtreeSystemUiVisibility);
1656            out.writeInt(hasSystemUiListeners ? 1 : 0);
1657            out.writeInt(inputFeatures);
1658            out.writeLong(userActivityTimeout);
1659            out.writeInt(surfaceInsets.left);
1660            out.writeInt(surfaceInsets.top);
1661            out.writeInt(surfaceInsets.right);
1662            out.writeInt(surfaceInsets.bottom);
1663            out.writeInt(hasManualSurfaceInsets ? 1 : 0);
1664            out.writeInt(needsMenuKey);
1665        }
1666
1667        public static final Parcelable.Creator<LayoutParams> CREATOR
1668                    = new Parcelable.Creator<LayoutParams>() {
1669            public LayoutParams createFromParcel(Parcel in) {
1670                return new LayoutParams(in);
1671            }
1672
1673            public LayoutParams[] newArray(int size) {
1674                return new LayoutParams[size];
1675            }
1676        };
1677
1678
1679        public LayoutParams(Parcel in) {
1680            width = in.readInt();
1681            height = in.readInt();
1682            x = in.readInt();
1683            y = in.readInt();
1684            type = in.readInt();
1685            flags = in.readInt();
1686            privateFlags = in.readInt();
1687            softInputMode = in.readInt();
1688            gravity = in.readInt();
1689            horizontalMargin = in.readFloat();
1690            verticalMargin = in.readFloat();
1691            format = in.readInt();
1692            windowAnimations = in.readInt();
1693            alpha = in.readFloat();
1694            dimAmount = in.readFloat();
1695            screenBrightness = in.readFloat();
1696            buttonBrightness = in.readFloat();
1697            rotationAnimation = in.readInt();
1698            token = in.readStrongBinder();
1699            packageName = in.readString();
1700            mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
1701            screenOrientation = in.readInt();
1702            preferredRefreshRate = in.readFloat();
1703            systemUiVisibility = in.readInt();
1704            subtreeSystemUiVisibility = in.readInt();
1705            hasSystemUiListeners = in.readInt() != 0;
1706            inputFeatures = in.readInt();
1707            userActivityTimeout = in.readLong();
1708            surfaceInsets.left = in.readInt();
1709            surfaceInsets.top = in.readInt();
1710            surfaceInsets.right = in.readInt();
1711            surfaceInsets.bottom = in.readInt();
1712            hasManualSurfaceInsets = in.readInt() != 0;
1713            needsMenuKey = in.readInt();
1714        }
1715
1716        @SuppressWarnings({"PointlessBitwiseExpression"})
1717        public static final int LAYOUT_CHANGED = 1<<0;
1718        public static final int TYPE_CHANGED = 1<<1;
1719        public static final int FLAGS_CHANGED = 1<<2;
1720        public static final int FORMAT_CHANGED = 1<<3;
1721        public static final int ANIMATION_CHANGED = 1<<4;
1722        public static final int DIM_AMOUNT_CHANGED = 1<<5;
1723        public static final int TITLE_CHANGED = 1<<6;
1724        public static final int ALPHA_CHANGED = 1<<7;
1725        public static final int MEMORY_TYPE_CHANGED = 1<<8;
1726        public static final int SOFT_INPUT_MODE_CHANGED = 1<<9;
1727        public static final int SCREEN_ORIENTATION_CHANGED = 1<<10;
1728        public static final int SCREEN_BRIGHTNESS_CHANGED = 1<<11;
1729        public static final int ROTATION_ANIMATION_CHANGED = 1<<12;
1730        /** {@hide} */
1731        public static final int BUTTON_BRIGHTNESS_CHANGED = 1<<13;
1732        /** {@hide} */
1733        public static final int SYSTEM_UI_VISIBILITY_CHANGED = 1<<14;
1734        /** {@hide} */
1735        public static final int SYSTEM_UI_LISTENER_CHANGED = 1<<15;
1736        /** {@hide} */
1737        public static final int INPUT_FEATURES_CHANGED = 1<<16;
1738        /** {@hide} */
1739        public static final int PRIVATE_FLAGS_CHANGED = 1<<17;
1740        /** {@hide} */
1741        public static final int USER_ACTIVITY_TIMEOUT_CHANGED = 1<<18;
1742        /** {@hide} */
1743        public static final int TRANSLUCENT_FLAGS_CHANGED = 1<<19;
1744        /** {@hide} */
1745        public static final int SURFACE_INSETS_CHANGED = 1<<20;
1746        /** {@hide} */
1747        public static final int PREFERRED_REFRESH_RATE_CHANGED = 1 << 21;
1748        /** {@hide} */
1749        public static final int NEEDS_MENU_KEY_CHANGED = 1 << 22;
1750        /** {@hide} */
1751        public static final int EVERYTHING_CHANGED = 0xffffffff;
1752
1753        // internal buffer to backup/restore parameters under compatibility mode.
1754        private int[] mCompatibilityParamsBackup = null;
1755
1756        public final int copyFrom(LayoutParams o) {
1757            int changes = 0;
1758
1759            if (width != o.width) {
1760                width = o.width;
1761                changes |= LAYOUT_CHANGED;
1762            }
1763            if (height != o.height) {
1764                height = o.height;
1765                changes |= LAYOUT_CHANGED;
1766            }
1767            if (x != o.x) {
1768                x = o.x;
1769                changes |= LAYOUT_CHANGED;
1770            }
1771            if (y != o.y) {
1772                y = o.y;
1773                changes |= LAYOUT_CHANGED;
1774            }
1775            if (horizontalWeight != o.horizontalWeight) {
1776                horizontalWeight = o.horizontalWeight;
1777                changes |= LAYOUT_CHANGED;
1778            }
1779            if (verticalWeight != o.verticalWeight) {
1780                verticalWeight = o.verticalWeight;
1781                changes |= LAYOUT_CHANGED;
1782            }
1783            if (horizontalMargin != o.horizontalMargin) {
1784                horizontalMargin = o.horizontalMargin;
1785                changes |= LAYOUT_CHANGED;
1786            }
1787            if (verticalMargin != o.verticalMargin) {
1788                verticalMargin = o.verticalMargin;
1789                changes |= LAYOUT_CHANGED;
1790            }
1791            if (type != o.type) {
1792                type = o.type;
1793                changes |= TYPE_CHANGED;
1794            }
1795            if (flags != o.flags) {
1796                final int diff = flags ^ o.flags;
1797                if ((diff & (FLAG_TRANSLUCENT_STATUS | FLAG_TRANSLUCENT_NAVIGATION)) != 0) {
1798                    changes |= TRANSLUCENT_FLAGS_CHANGED;
1799                }
1800                flags = o.flags;
1801                changes |= FLAGS_CHANGED;
1802            }
1803            if (privateFlags != o.privateFlags) {
1804                privateFlags = o.privateFlags;
1805                changes |= PRIVATE_FLAGS_CHANGED;
1806            }
1807            if (softInputMode != o.softInputMode) {
1808                softInputMode = o.softInputMode;
1809                changes |= SOFT_INPUT_MODE_CHANGED;
1810            }
1811            if (gravity != o.gravity) {
1812                gravity = o.gravity;
1813                changes |= LAYOUT_CHANGED;
1814            }
1815            if (format != o.format) {
1816                format = o.format;
1817                changes |= FORMAT_CHANGED;
1818            }
1819            if (windowAnimations != o.windowAnimations) {
1820                windowAnimations = o.windowAnimations;
1821                changes |= ANIMATION_CHANGED;
1822            }
1823            if (token == null) {
1824                // NOTE: token only copied if the recipient doesn't
1825                // already have one.
1826                token = o.token;
1827            }
1828            if (packageName == null) {
1829                // NOTE: packageName only copied if the recipient doesn't
1830                // already have one.
1831                packageName = o.packageName;
1832            }
1833            if (!mTitle.equals(o.mTitle)) {
1834                mTitle = o.mTitle;
1835                changes |= TITLE_CHANGED;
1836            }
1837            if (alpha != o.alpha) {
1838                alpha = o.alpha;
1839                changes |= ALPHA_CHANGED;
1840            }
1841            if (dimAmount != o.dimAmount) {
1842                dimAmount = o.dimAmount;
1843                changes |= DIM_AMOUNT_CHANGED;
1844            }
1845            if (screenBrightness != o.screenBrightness) {
1846                screenBrightness = o.screenBrightness;
1847                changes |= SCREEN_BRIGHTNESS_CHANGED;
1848            }
1849            if (buttonBrightness != o.buttonBrightness) {
1850                buttonBrightness = o.buttonBrightness;
1851                changes |= BUTTON_BRIGHTNESS_CHANGED;
1852            }
1853            if (rotationAnimation != o.rotationAnimation) {
1854                rotationAnimation = o.rotationAnimation;
1855                changes |= ROTATION_ANIMATION_CHANGED;
1856            }
1857
1858            if (screenOrientation != o.screenOrientation) {
1859                screenOrientation = o.screenOrientation;
1860                changes |= SCREEN_ORIENTATION_CHANGED;
1861            }
1862
1863            if (preferredRefreshRate != o.preferredRefreshRate) {
1864                preferredRefreshRate = o.preferredRefreshRate;
1865                changes |= PREFERRED_REFRESH_RATE_CHANGED;
1866            }
1867
1868            if (systemUiVisibility != o.systemUiVisibility
1869                    || subtreeSystemUiVisibility != o.subtreeSystemUiVisibility) {
1870                systemUiVisibility = o.systemUiVisibility;
1871                subtreeSystemUiVisibility = o.subtreeSystemUiVisibility;
1872                changes |= SYSTEM_UI_VISIBILITY_CHANGED;
1873            }
1874
1875            if (hasSystemUiListeners != o.hasSystemUiListeners) {
1876                hasSystemUiListeners = o.hasSystemUiListeners;
1877                changes |= SYSTEM_UI_LISTENER_CHANGED;
1878            }
1879
1880            if (inputFeatures != o.inputFeatures) {
1881                inputFeatures = o.inputFeatures;
1882                changes |= INPUT_FEATURES_CHANGED;
1883            }
1884
1885            if (userActivityTimeout != o.userActivityTimeout) {
1886                userActivityTimeout = o.userActivityTimeout;
1887                changes |= USER_ACTIVITY_TIMEOUT_CHANGED;
1888            }
1889
1890            if (!surfaceInsets.equals(o.surfaceInsets)) {
1891                surfaceInsets.set(o.surfaceInsets);
1892                changes |= SURFACE_INSETS_CHANGED;
1893            }
1894
1895            if (hasManualSurfaceInsets != o.hasManualSurfaceInsets) {
1896                hasManualSurfaceInsets = o.hasManualSurfaceInsets;
1897                changes |= SURFACE_INSETS_CHANGED;
1898            }
1899
1900            if (needsMenuKey != o.needsMenuKey) {
1901                needsMenuKey = o.needsMenuKey;
1902                changes |= NEEDS_MENU_KEY_CHANGED;
1903            }
1904
1905            return changes;
1906        }
1907
1908        @Override
1909        public String debug(String output) {
1910            output += "Contents of " + this + ":";
1911            Log.d("Debug", output);
1912            output = super.debug("");
1913            Log.d("Debug", output);
1914            Log.d("Debug", "");
1915            Log.d("Debug", "WindowManager.LayoutParams={title=" + mTitle + "}");
1916            return "";
1917        }
1918
1919        @Override
1920        public String toString() {
1921            StringBuilder sb = new StringBuilder(256);
1922            sb.append("WM.LayoutParams{");
1923            sb.append("(");
1924            sb.append(x);
1925            sb.append(',');
1926            sb.append(y);
1927            sb.append(")(");
1928            sb.append((width== MATCH_PARENT ?"fill":(width==WRAP_CONTENT?"wrap":width)));
1929            sb.append('x');
1930            sb.append((height== MATCH_PARENT ?"fill":(height==WRAP_CONTENT?"wrap":height)));
1931            sb.append(")");
1932            if (horizontalMargin != 0) {
1933                sb.append(" hm=");
1934                sb.append(horizontalMargin);
1935            }
1936            if (verticalMargin != 0) {
1937                sb.append(" vm=");
1938                sb.append(verticalMargin);
1939            }
1940            if (gravity != 0) {
1941                sb.append(" gr=#");
1942                sb.append(Integer.toHexString(gravity));
1943            }
1944            if (softInputMode != 0) {
1945                sb.append(" sim=#");
1946                sb.append(Integer.toHexString(softInputMode));
1947            }
1948            sb.append(" ty=");
1949            sb.append(type);
1950            sb.append(" fl=#");
1951            sb.append(Integer.toHexString(flags));
1952            if (privateFlags != 0) {
1953                if ((privateFlags & PRIVATE_FLAG_COMPATIBLE_WINDOW) != 0) {
1954                    sb.append(" compatible=true");
1955                }
1956                sb.append(" pfl=0x").append(Integer.toHexString(privateFlags));
1957            }
1958            if (format != PixelFormat.OPAQUE) {
1959                sb.append(" fmt=");
1960                sb.append(format);
1961            }
1962            if (windowAnimations != 0) {
1963                sb.append(" wanim=0x");
1964                sb.append(Integer.toHexString(windowAnimations));
1965            }
1966            if (screenOrientation != ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) {
1967                sb.append(" or=");
1968                sb.append(screenOrientation);
1969            }
1970            if (alpha != 1.0f) {
1971                sb.append(" alpha=");
1972                sb.append(alpha);
1973            }
1974            if (screenBrightness != BRIGHTNESS_OVERRIDE_NONE) {
1975                sb.append(" sbrt=");
1976                sb.append(screenBrightness);
1977            }
1978            if (buttonBrightness != BRIGHTNESS_OVERRIDE_NONE) {
1979                sb.append(" bbrt=");
1980                sb.append(buttonBrightness);
1981            }
1982            if (rotationAnimation != ROTATION_ANIMATION_ROTATE) {
1983                sb.append(" rotAnim=");
1984                sb.append(rotationAnimation);
1985            }
1986            if (preferredRefreshRate != 0) {
1987                sb.append(" preferredRefreshRate=");
1988                sb.append(preferredRefreshRate);
1989            }
1990            if (systemUiVisibility != 0) {
1991                sb.append(" sysui=0x");
1992                sb.append(Integer.toHexString(systemUiVisibility));
1993            }
1994            if (subtreeSystemUiVisibility != 0) {
1995                sb.append(" vsysui=0x");
1996                sb.append(Integer.toHexString(subtreeSystemUiVisibility));
1997            }
1998            if (hasSystemUiListeners) {
1999                sb.append(" sysuil=");
2000                sb.append(hasSystemUiListeners);
2001            }
2002            if (inputFeatures != 0) {
2003                sb.append(" if=0x").append(Integer.toHexString(inputFeatures));
2004            }
2005            if (userActivityTimeout >= 0) {
2006                sb.append(" userActivityTimeout=").append(userActivityTimeout);
2007            }
2008            if (surfaceInsets.left != 0 || surfaceInsets.top != 0 || surfaceInsets.right != 0 ||
2009                    surfaceInsets.bottom != 0 || hasManualSurfaceInsets) {
2010                sb.append(" surfaceInsets=").append(surfaceInsets);
2011                if (hasManualSurfaceInsets) {
2012                    sb.append(" (manual)");
2013                }
2014            }
2015            if (needsMenuKey != NEEDS_MENU_UNSET) {
2016                sb.append(" needsMenuKey=");
2017                sb.append(needsMenuKey);
2018            }
2019            sb.append('}');
2020            return sb.toString();
2021        }
2022
2023        /**
2024         * Scale the layout params' coordinates and size.
2025         * @hide
2026         */
2027        public void scale(float scale) {
2028            x = (int) (x * scale + 0.5f);
2029            y = (int) (y * scale + 0.5f);
2030            if (width > 0) {
2031                width = (int) (width * scale + 0.5f);
2032            }
2033            if (height > 0) {
2034                height = (int) (height * scale + 0.5f);
2035            }
2036        }
2037
2038        /**
2039         * Backup the layout parameters used in compatibility mode.
2040         * @see LayoutParams#restore()
2041         */
2042        void backup() {
2043            int[] backup = mCompatibilityParamsBackup;
2044            if (backup == null) {
2045                // we backup 4 elements, x, y, width, height
2046                backup = mCompatibilityParamsBackup = new int[4];
2047            }
2048            backup[0] = x;
2049            backup[1] = y;
2050            backup[2] = width;
2051            backup[3] = height;
2052        }
2053
2054        /**
2055         * Restore the layout params' coordinates, size and gravity
2056         * @see LayoutParams#backup()
2057         */
2058        void restore() {
2059            int[] backup = mCompatibilityParamsBackup;
2060            if (backup != null) {
2061                x = backup[0];
2062                y = backup[1];
2063                width = backup[2];
2064                height = backup[3];
2065            }
2066        }
2067
2068        private CharSequence mTitle = "";
2069    }
2070}
2071