ITS MapsMetode Android APK ITS Maps

Capacitor + Java Native Widgets

Metode Android APK ITS Maps

Halaman ini menjelaskan APK, native widget Android, lock-screen dashboard, service RTDB, layout XML, dan integrasi icon/widget.

Developer: Hanifa Septhi Larasati
Publisher: Hanifa Teams
URL: https://itstelkom.web.app/method/android
Updated: 21 July 2026

Capacitor + Java Native Widgets

Metode Android APK ITS Maps

Halaman ini menjelaskan APK, native widget Android, lock-screen dashboard, service RTDB, layout XML, dan integrasi icon/widget.

Semua metode Dokumentasi utama Preview PDF

Fitur

Fitur utama yang dibahas

Widget ITS Live

Grafik realtime, status sistem, durasi lampu, dan tile kendaraan.

Widget Kamera AI ITS

Carousel 2 snapshot, bbox AI, label objek, confidence, dan ringkasan kendaraan.

Widget Peta ITS

Map preview, marker traffic light, status warna, dan kontrol lokasi/zoom.

Lock screen

Dashboard lock-screen dengan snapshot, media surface, dan service notifikasi.

Diagram

Alur runtime Android APK

flowchart LR
  RTDB[("Firebase RTDB")] --> S["WidgetRealtimeService.java"]
  S --> W1["ITS Live Widget"]
  S --> W2["Kamera AI ITS Widget"]
  S --> W3["Peta ITS Widget"]
  S --> W4["Data Full & Alert Widget"]
  S --> L["LockScreenDashboardActivity"]
  Main["MainActivity / Capacitor"] --> S

Matematika dan logika

Formulasi yang dipakai kode

Status realtime

Perangkat dianggap online jika selisih waktu heartbeat masih di bawah ambang offline.

\[\Delta t=t_{now}-t_{lastSeen}\]

\[online(d)=\begin{cases}1,&\Delta t\le T_{offline}\\0,&\Delta t>T_{offline}\end{cases}\]

Total kendaraan

Tile kendaraan menampilkan jumlah kelas yang sama di WebApp, APK, dan Windows widget.

\[N=N_{mobil}+N_{motor}+N_{bus}+N_{truk}+N_{sepeda}\]

Proyeksi bounding box

AI menggambar kotak deteksi dengan skala dari frame sumber ke canvas/tampilan.

\[x'=x\cdot\frac{W_{view}}{W_{src}},\quad y'=y\cdot\frac{H_{view}}{H_{src}}\]

\[w'=w\cdot\frac{W_{view}}{W_{src}},\quad h'=h\cdot\frac{H_{view}}{H_{src}}\]

IoU dan NMS

Deteksi ganda ditekan dengan Intersection over Union agar satu objek tidak dihitung berkali-kali.

\[IoU(A,B)=\frac{|A\cap B|}{|A\cup B|}\]

\[score'=score\cdot e^{-\frac{IoU^2}{\sigma}}\]

Grafik realtime

History grafik dibatasi ke jendela data terbaru supaya widget tetap terbaca.

\[H_t=tail_k(H_{t-1}\cup\{(t,N,color,seconds)\})\]

Jarak Haversine

Dipakai untuk memperkirakan jarak user, POI, dan device pada peta.

\[a=\sin^2\frac{\Delta\phi}{2}+\cos\phi_1\cos\phi_2\sin^2\frac{\Delta\lambda}{2}\]

\[d=2R\cdot atan2(\sqrt a,\sqrt{1-a})\]

Contoh kode yang bisa dijalankan

Contoh ini menjalankan rumus kecil yang sama konsepnya dengan kode aplikasi: freshness, total kendaraan, IoU, dan durasi lampu.

const total = car + motorcycle + bus + truck + bicycle;
const green = Math.min(120, Math.max(10, 0.85 * total + 8));

Tekan salah satu tombol Run.

Screenshots

Gambar pendukung

Screenshot widget Data Full & Alert Android

Line-by-line source atlas

Atlas kode Android APK

Ringkasan file tetap tersedia di halaman utama. Isi kode asli dan catatan teknis per baris dimuat hanya saat diminta agar dokumentasi cepat dibuka dan tetap dapat dipelajari secara lengkap.

File Baris Baris logika Simbol utama

web/android/app/src/main/AndroidManifest.xml 165 145 template / konfigurasi

web/android/app/src/main/java/id/ac/telkomuniversity/its/MainActivity.java 405 366

web/android/app/src/main/java/id/ac/telkomuniversity/its/WidgetRealtimeService.java 474 431

web/android/app/src/main/java/id/ac/telkomuniversity/its/ChartWidgetProvider.java 842 745

web/android/app/src/main/java/id/ac/telkomuniversity/its/TrafficDetectionWidgetProvider.java 1.639 1.464

web/android/app/src/main/java/id/ac/telkomuniversity/its/MapsWidgetProvider.java 970 850

web/android/app/src/main/java/id/ac/telkomuniversity/its/AlertFullDataWidgetProvider.java 1.668 1.508

web/android/app/src/main/java/id/ac/telkomuniversity/its/LockScreenDashboardActivity.java 3.316 3.105

web/android/app/src/main/java/id/ac/telkomuniversity/its/LockScreenRenderer.java 6.898 6.282

web/android/app/src/main/java/id/ac/telkomuniversity/its/LockScreenPreferences.java 27 21

web/android/app/src/main/java/id/ac/telkomuniversity/its/ItsNotificationListenerService.java 279 249

web/android/app/src/main/java/id/ac/telkomuniversity/its/IndonesianObjectLabels.java 131 123

web/android/app/src/main/java/id/ac/telkomuniversity/its/WidgetBootReceiver.java 26 22

web/android/app/src/main/res/layout/widget_alert_full_data.xml 62 55 template / konfigurasi

web/android/app/src/main/res/layout/widget_maps.xml 77 70 template / konfigurasi

web/android/app/src/main/res/xml/widget_alert_full_data_info.xml 15 14 template / konfigurasi

web/android/app/src/main/res/xml/widget_maps_info.xml 15 14 template / konfigurasi

web/android/app/src/main/res/xml/widget_traffic_detection_info.xml 15 14 template / konfigurasi

web/android/app/build.gradle 66 57

web/capacitor.config.json 14 13 template / konfigurasi

web/android/app/src/main/AndroidManifest.xml 165 baris