* java/res/drawable/emacs_background.xml: Delete trailing whitespace
and modify gradient offset to match emacs.svg.

* java/res/drawable/emacs_foreground.xml: Delete trailing
whitespace and remove redundant path.

* java/AndroidManifest.xml.in (EmacsApplication): Set icon to
@mipmap/emacs_icon.

* java/org/gnu/emacs/EmacsService.java (onStartCommand): Pick a
better name for the persistent notification channel.

* java/res/drawable/emacs_background.xml:

* java/res/drawable/emacs_foreground.xml:

* java/res/mipmap/emacs_icon.png:

* java/res/mipmap-v26/emacs_icon.xml: New files, comprising an
``adaptive icon'' required by some Android launchers.

* doc/lispref/os.texi (Desktop Notifications)
<android-notifications-notify>: Mention the :icon parameter.

* java/org/gnu/emacs/EmacsDesktopNotification.java
(EmacsDesktopNotification) <icon>: New field.
(<init>): New argument ICON.  Set this.icon to its value.
(display1): Use provided icon and always supply a pending intent
to open Emacs once the notification is clicked.

* java/res/layout/sdk8_notifications_view.xml
(sdk8_notifications_title, sdk8_notifications_content): Set
foreground color to #000000.

* src/androidselect.c (android_init_emacs_desktop_notification):
Update signature of <init>.
(android_locate_icon): New function.
(android_notifications_notify_1): New arg ICON.
(Fandroid_notifications_notify): New parameter icon.
(syms_of_androidselect): <QCicon>: New symbol.

* doc/emacs/android.texi (Android Environment): Correct list of
permissions granted by default.

* doc/lispref/os.texi (Desktop Notifications): Document the new
function `android-notifications-notify' and its limitations.

* java/AndroidManifest.xml.in: Request notification permissions.

* java/org/gnu/emacs/EmacsDesktopNotification.java: New file.

* java/res/layout/sdk8_notifications_view.xml: New file holding
substitute notification widget definitions for Android versions
prior to 3.0.

* java/res/values/strings.xml: Remove inadvertently introduced
tag attribute.

* lisp/org/org-clock.el (haiku-notifications-notify): Correct
file name in function declaration.
(android-notifications-notify): New declaration.
(org-show-notification): Use `android-notifications-notify'.

* src/androidselect.c (android_init_emacs_desktop_notification)
(android_notifications_notify_1, Fandroid_notifications_notify):
New functions.
(init_androidselect, syms_of_androidselect): Initialize new
class and define new subr.

* configure.ac (ANDROID_SHARED_USER_NAME): New variable.
Substitute it.
* java/AndroidManifest.xml.in: Set `sharedUserLabel' if a shared
user ID is enabled.
* java/res/values/strings.xml (shared_user_name): New string
resource.

* doc/emacs/android.texi (Android Troubleshooting): Document
`debug-init' option.
* java/AndroidManifest.xml.in
(EmacsLauncherPreferencesActivity): New activity.  Export on
systems older than Android 7.0.
* java/org/gnu/emacs/EmacsActivity.java (onCreate): Adjust for
string startup argument.
* java/org/gnu/emacs/EmacsLauncherPreferencesActivity.java: New
file.
* java/org/gnu/emacs/EmacsPreferencesActivity.java
(EmacsPreferencesActivity): Don't make final.
(startEmacsQ): Give start-up argument as an argument, not as a
boolean.
(startEmacsDebugInit): New function.
(onCreate): Register new listener; make final.
* java/org/gnu/emacs/EmacsService.java (onCreate): Pass
extraStartupArgument.
* java/org/gnu/emacs/EmacsThread.java (EmacsThread): Rename
startDashQ to extraStartupArgument.
(run): Adjust accordingly.
* java/res/values-v24/bool.xml:
* java/res/values/bool.xml:
* java/res/values/strings.xml: New files.
* java/res/xml/preferences.xml: Add new option.  Move string
resources around.

* java/org/gnu/emacs/EmacsOpenActivity.java (onCreate): Don't
set the style here.
* java/res/values-v11/style.xml:
* java/res/values-v14/style.xml:
* java/res/values-v29/style.xml:
* java/res/values/style.xml: Define styles for the emacsclient
wrapper.
* src/keyboard.c (read_key_sequence): Don't disable text
conversion if use_mouse_menu or if a menu bar prefix key is
being displayed.

* java/AndroidManifest.xml.in: Specify @style/EmacsStyle.
* java/org/gnu/emacs/EmacsActivity.java (onCreate): Stop setting
the theme here.
* java/res/values-v11/style.xml:
* java/res/values-v14/style.xml:
* java/res/values-v29/style.xml:
* java/res/values/style.xml: Extract style resources into
res/values.

* .gitignore: Add org/gnu/emacs/R.java.
* cross/Makefile.in (top_builddir): Include verbose.mk.  Rewrite
rules to print nice looking statements.
* doc/emacs/android.texi (Android, Android Startup)
(Android Environment, Android Windowing, Android Fonts):
* doc/emacs/emacs.texi (Top): Add an extra ``Android
Troubleshooting'' node and move troubleshooting details there.
* java/Makefile.in: Generate R.java; improve appearance by using
verbose.mk.

* java/org/gnu/emacs/EmacsPreferencesActivity.java: Reimplement
in terms of PreferencesActivity.
* java/org/gnu/emacs/EmacsView.java (handleDirtyBitmap): Avoid
flicker.
* java/res/xml/preferences.xml: New file.
* src/verbose.mk.in (AM_V_AAPT, AM_V_SILENT): New variables.

* java/AndroidManifest.xml.in: Declare the new documents
provider.
* java/README: Describe the meaning of files in res/values.
* java/org/gnu/emacs/EmacsDocumentsProvider.java
(EmacsDocumentsProvider): New file.
* java/res/values-v19/bool.xml:
* java/res/values/bool.xml: New files.