How to change small icon image in notification on Android device with DELPHI

Question

Is there any way to change the small icon image (default used application icon) in the notification in the Android application with Delphi?

The standard way to easily create a notification is:

var
  aNotification: TNotification;
begin   
  aNotification:= aNotificationCenter.CreateNotification;
  try
    aNotification.Name:= 'Notification Name';
    aNotification.Title:= 'Notification Title';
    aNotification.AlertBody:= 'Notification Alert Body';
    aNotification.EnableSound:= False;
    aWorkNotification.Number:= 1;
    aNotificationCenter.PresentNotification(aNotification);
  finally
    aNotification.Free;
  end;
end;

I know solution for Java, but I don't know how the same programmed in Delphi.

Advise me someone?

Paperweight

It is very easy. Simply use NotificationCompat_Builder and then you can use any image (icon) you will want to. – Deitz

The next procedure is the same as for Java – Deitz

You say that it is very easy and I can use any image or icon. Can you show me how do it? – Paperweight

Answer 1

First, prepare the icon in png format (16 x 16, named for example ic_test). Save the png icon using the Deployment to these directories:

res\drawable-ldpi\
res\drawable-mdpi\
res\drawable-hdpi\
res\drawable-xhdpi\
res\drawable-xxhdpi\

Then use the following code:

.
.
var
  Ntf: JNotification;
  ntfBuilder: JNotificationCompat_Builder;
  ntfManager: JNotificationManager;
.
.
  ntfBuilder:= TJNotificationCompat_Builder.JavaClass.init(TAndroidHelper.Context);
  ntfBuilder.setSmallIcon(TAndroidHelper.Context.getResources.getIdentifier(StringToJString('ic_test'), StringToJString('drawable'), TAndroidHelper.Context.getPackageName));
  ntfBuilder.setContentTitle(StrToJCharSequence('Content Title'));
  ntfBuilder.setContentText(StrToJCharSequence('Content Test'));
  ntfBuilder.setAutoCancel(True);

  Ntf:= ntfBuilder.build;

  ntfManager:= TJNotificationManager.Wrap((TAndroidHelper.Context.getSystemService(TJContext.JavaClass.NOTIFICATION_SERVICE) as ILocalObject).GetObjectID);
  ntfManager.notify(1, Ntf);
.
.

If you want to use built-in system icons use this constants

const
  r_drawable_alert_dark_frame = 17301504;
  r_drawable_alert_light_frame = 17301505;
  r_drawable_arrow_down_float = 17301506;
  r_drawable_arrow_up_float = 17301507;
  r_drawable_bottom_bar = 17301658;
  r_drawable_btn_default = 17301508;
  r_drawable_btn_default_small = 17301509;
  r_drawable_btn_dialog = 17301527;
  r_drawable_btn_dropdown = 17301510;
  r_drawable_btn_minus = 17301511;
  r_drawable_btn_plus = 17301512;
  r_drawable_btn_radio = 17301513;
  r_drawable_btn_star = 17301514;
  r_drawable_btn_star_big_off = 17301515;
  r_drawable_btn_star_big_on = 17301516;
  r_drawable_button_onoff_indicator_off = 17301518;
  r_drawable_button_onoff_indicator_on = 17301517;
  r_drawable_checkbox_off_background = 17301519;
  r_drawable_checkbox_on_background = 17301520;
  r_drawable_dark_header = 17301669;
  r_drawable_dialog_frame = 17301521;
  r_drawable_dialog_holo_dark_frame = 17301682;
  r_drawable_dialog_holo_light_frame = 17301683;
  r_drawable_divider_horizontal_bright = 17301522;
  r_drawable_divider_horizontal_dark = 17301524;
  r_drawable_divider_horizontal_dim_dark = 17301525;
  r_drawable_divider_horizontal_textfield = 17301523;
  r_drawable_edit_text = 17301526;
  r_drawable_editbox_background = 17301528;
  r_drawable_editbox_background_normal = 17301529;
  r_drawable_editbox_dropdown_dark_frame = 17301530;
  r_drawable_editbox_dropdown_light_frame = 17301531;
  r_drawable_gallery_thumb = 17301532;
  r_drawable_ic_btn_speak_now = 17301668;
  r_drawable_ic_delete = 17301533;
  r_drawable_ic_dialog_alert = 17301543;
  r_drawable_ic_dialog_dialer = 17301544;
  r_drawable_ic_dialog_email = 17301545;
  r_drawable_ic_dialog_info = 17301659;
  r_drawable_ic_dialog_map = 17301546;
  r_drawable_ic_input_add = 17301547;
  r_drawable_ic_input_delete = 17301548;
  r_drawable_ic_input_get = 17301549;
  r_drawable_ic_lock_idle_alarm = 17301550;
  r_drawable_ic_lock_idle_charging = 17301534;
  r_drawable_ic_lock_idle_lock = 17301535;
  r_drawable_ic_lock_idle_low_battery = 17301536;
  r_drawable_ic_lock_lock = 17301551;
  r_drawable_ic_lock_power_off = 17301552;
  r_drawable_ic_lock_silent_mode = 17301553;
  r_drawable_ic_lock_silent_mode_off = 17301554;
  r_drawable_ic_media_ff = 17301537;
  r_drawable_ic_media_next = 17301538;
  r_drawable_ic_media_pause = 17301539;
  r_drawable_ic_media_play = 17301540;
  r_drawable_ic_media_previous = 17301541;
  r_drawable_ic_media_rew = 17301542;
  r_drawable_ic_menu_add = 17301555;
  r_drawable_ic_menu_agenda = 17301556;
  r_drawable_ic_menu_always_landscape_portrait = 17301557;
  r_drawable_ic_menu_call = 17301558;
  r_drawable_ic_menu_camera = 17301559;
  r_drawable_ic_menu_close_clear_cancel = 17301560;
  r_drawable_ic_menu_compass = 17301561;
  r_drawable_ic_menu_crop = 17301562;
  r_drawable_ic_menu_day = 17301563;
  r_drawable_ic_menu_delete = 17301564;
  r_drawable_ic_menu_directions = 17301565;
  r_drawable_ic_menu_edit = 17301566;
  r_drawable_ic_menu_gallery = 17301567;
  r_drawable_ic_menu_help = 17301568;
  r_drawable_ic_menu_info_details = 17301569;
  r_drawable_ic_menu_manage = 17301570;
  r_drawable_ic_menu_mapmode = 17301571;
  r_drawable_ic_menu_month = 17301572;
  r_drawable_ic_menu_more = 17301573;
  r_drawable_ic_menu_my_calendar = 17301574;
  r_drawable_ic_menu_mylocation = 17301575;
  r_drawable_ic_menu_myplaces = 17301576;
  r_drawable_ic_menu_preferences = 17301577;
  r_drawable_ic_menu_recent_history = 17301578;
  r_drawable_ic_menu_report_image = 17301579;
  r_drawable_ic_menu_revert = 17301580;
  r_drawable_ic_menu_rotate = 17301581;
  r_drawable_ic_menu_save = 17301582;
  r_drawable_ic_menu_search = 17301583;
  r_drawable_ic_menu_send = 17301584;
  r_drawable_ic_menu_set_as = 17301585;
  r_drawable_ic_menu_share = 17301586;
  r_drawable_ic_menu_slideshow = 17301587;
  r_drawable_ic_menu_sort_alphabetically = 17301660;
  r_drawable_ic_menu_sort_by_size = 17301661;
  r_drawable_ic_menu_today = 17301588;
  r_drawable_ic_menu_upload = 17301589;
  r_drawable_ic_menu_upload_you_tube = 17301590;
  r_drawable_ic_menu_view = 17301591;
  r_drawable_ic_menu_week = 17301592;
  r_drawable_ic_menu_zoom = 17301593;
  r_drawable_ic_notification_clear_all = 17301594;
  r_drawable_ic_notification_overlay = 17301595;
  r_drawable_ic_partial_secure = 17301596;
  r_drawable_ic_popup_disk_full = 17301597;
  r_drawable_ic_popup_reminder = 17301598;
  r_drawable_ic_popup_sync = 17301599;
  r_drawable_ic_search_category_default = 17301600;
  r_drawable_ic_secure = 17301601;
  r_drawable_list_selector_background = 17301602;
  r_drawable_menu_frame = 17301603;
  r_drawable_menu_full_frame = 17301604;
  r_drawable_menuitem_background = 17301605;
  r_drawable_picture_frame = 17301606;
  r_drawable_presence_audio_away = 17301679;
  r_drawable_presence_audio_busy = 17301680;
  r_drawable_presence_audio_online = 17301681;
  r_drawable_presence_away = 17301607;
  r_drawable_presence_busy = 17301608;
  r_drawable_presence_invisible = 17301609;
  r_drawable_presence_offline = 17301610;
  r_drawable_presence_online = 17301611;
  r_drawable_presence_video_away = 17301676;
  r_drawable_presence_video_busy = 17301677;
  r_drawable_presence_video_online = 17301678;
  r_drawable_progress_horizontal = 17301612;
  r_drawable_progress_indeterminate_horizontal = 17301613;
  r_drawable_radiobutton_off_background = 17301614;
  r_drawable_radiobutton_on_background = 17301615;
  r_drawable_screen_background_dark = 17301656;
  r_drawable_screen_background_dark_transparent = 17301673;
  r_drawable_screen_background_light = 17301657;
  r_drawable_screen_background_light_transparent = 17301674;
  r_drawable_spinner_background = 17301616;
  r_drawable_spinner_dropdown_background = 17301617;
  r_drawable_star_big_off = 17301619;
  r_drawable_star_big_on = 17301618;
  r_drawable_star_off = 17301621;
  r_drawable_star_on = 17301620;
  r_drawable_stat_notify_call_mute = 17301622;
  r_drawable_stat_notify_chat = 17301623;
  r_drawable_stat_notify_error = 17301624;
  r_drawable_stat_notify_missed_call = 17301631;
  r_drawable_stat_notify_more = 17301625;
  r_drawable_stat_notify_sdcard = 17301626;
  r_drawable_stat_notify_sdcard_prepare = 17301675;
  r_drawable_stat_notify_sdcard_usb = 17301627;
  r_drawable_stat_notify_sync = 17301628;
  r_drawable_stat_notify_sync_noanim = 17301629;
  r_drawable_stat_notify_voicemail = 17301630;
  r_drawable_stat_sys_data_bluetooth = 17301632;
  r_drawable_stat_sys_download = 17301633;
  r_drawable_stat_sys_download_done = 17301634;
  r_drawable_stat_sys_headset = 17301635;
  r_drawable_stat_sys_phone_call = 17301636;
  r_drawable_stat_sys_phone_call_forward = 17301637;
  r_drawable_stat_sys_phone_call_on_hold = 17301638;
  r_drawable_stat_sys_speakerphone = 17301639;
  r_drawable_stat_sys_upload = 17301640;
  r_drawable_stat_sys_upload_done = 17301641;
  r_drawable_stat_sys_vp_phone_call = 17301671;
  r_drawable_stat_sys_vp_phone_call_on_hold = 17301672;
  r_drawable_stat_sys_warning = 17301642;
  r_drawable_status_bar_item_app_background = 17301643;
  r_drawable_status_bar_item_background = 17301644;
  r_drawable_sym_action_call = 17301645;
  r_drawable_sym_action_chat = 17301646;
  r_drawable_sym_action_email = 17301647;
  r_drawable_sym_call_incoming = 17301648;
  r_drawable_sym_call_missed = 17301649;
  r_drawable_sym_call_outgoing = 17301650;
  r_drawable_sym_contact_card = 17301652;
  r_drawable_sym_def_app_icon = 17301651;
  r_drawable_title_bar = 17301653;
  r_drawable_title_bar_tall = 17301670;
  r_drawable_toast_frame = 17301654;
  r_drawable_zoom_plate = 17301655;

with the following code (for example, for the android equivalent of R.drawable.ic _menu_send):

  ntfBuilder.setSmallIcon(r_drawable_ic_menu_send);

Deitz

All icons in the Deployment must have the same remote name - for example ic_test like in this answer ;-) – Deitz

uses Androidapi.JNI.App, {JNotification & co.} Androidapi.JNI.Support, {JNotificationCompat_Builder} Androidapi.Helpers, {TAndroidHelper & co.} Androidapi.JNI.GraphicsContentViewText, {TJContext} Androidapi.JNIBridge; {ILocalObject} – Igneous

Answer 2

Because it didn't work for me on Android 11 with Delphi 10.3, I made changes at System.Notification and System.Android.Notification files;

(I copied them to my path and added them to my app so the original files are fine)

System.Notification changes:

I added a new public field to the TNotification:

SmallIconID : Integer;

and in the constructor I initialized with -1;

SmallIconId := -1;

System.Android.Notification changes:

in the function TNotificationCenterAndroid.CreateNativeNotification I added this code before the if TOSVersion.Check(5) line:

if ANotification.SmallIconID > -1 then
  Builder := Builder.setSmallIcon(ANotification.SmallIconID);

and now I can set up the small icon from my app and it's working on Android 11 as well.

Forde