Documentation Index
Fetch the complete documentation index at: https://mintlify.com/anfegomezver/spectrum24ghz/llms.txt
Use this file to discover all available pages before exploring further.
The Estadísticas tab (tab index 3) hosts StatisticsGraphView, a custom android.view.View that renders three sequential analytical sections using Android’s Canvas API. Each section draws from the current scannedNetworks list computed after the most recent scan, giving you an aggregate picture of your local RF environment — not just a flat list of APs, but a structured breakdown of quality, congestion, and security posture. The entire canvas is rendered inside a ScrollView to accommodate all three sections regardless of screen size.
Data Flow
When the Statistics tab becomes active (or when a scan completes while it is already active), updateStatisticsView() iterates the scannedNetworks list and computes three data structures:
int[] qualityCounts = new int[4]; // [Excellent, Good, Regular, Weak]
int[] channelCounts = new int[14]; // Index 0 = ch 1 … Index 13 = ch 14
Map<String, Integer> securityCounts = new LinkedHashMap<>();
StatisticsGraphView.updateData(), which stores them and calls invalidate() to trigger a full redraw.
If totalNetworks == 0, the view skips all three sections and draws a single centred message:
No hay datos suficientes para estadísticas
Section 1 — Signal Quality (Calidad de Señal)
A horizontal bar chart with four rows, one per quality tier. Each bar’s width is proportional to its count relative to the largest tier count (maxQualityCount).
| Tier label | Threshold | Color token |
|---|
| Excelente | signalPercent ≥ 85 % | sig_strong (green) |
| Buena | signalPercent ≥ 60 % | sig_good |
| Regular | signalPercent ≥ 35 % | sig_medium (yellow/orange) |
| Débil | signalPercent < 35 % | sig_weak (red) |
updateStatisticsView():
int percent = net.getSignalPercent();
if (percent >= 85) qCounts[0]++; // Excelente
else if (percent >= 60) qCounts[1]++; // Buena
else if (percent >= 35) qCounts[2]++; // Regular
else qCounts[3]++; // Débil
Section 2 — Channel Usage (Uso de Canales)
A vertical histogram with 14 bars — one for each 2.4 GHz channel (1–14). Bar height is proportional to the number of networks detected on that channel relative to maxChannelCount. The count is printed above each bar when it is greater than zero; the channel number is printed below.
Color coding:
| Channel | Color token | Reason |
|---|
| 1, 6, 11 | sig_strong (green) | Non-overlapping — preferred channels |
| All others | sig_good | Overlapping — less preferred |
if (i == 0 || i == 5 || i == 10) // array indices for ch 1, 6, 11
barPaint.setColor(colorExcellent);
else
barPaint.setColor(colorGood);
Section 3 — Security Types (Tipos de Seguridad)
A horizontal bar chart with one row per distinct security label found across the scanned networks. Labels are derived from ScannedNetwork.getSecurityLabel() and the bar width is proportional to the count relative to the most common security type (maxSecCount). Each bar also shows the count and percentage of total networks (e.g. 5 (41.7%)).
Color coding by security label:
| Label pattern | Color token | Meaning |
|---|
Contains "open" (case-insensitive) | sig_weak (red) | Unencrypted — avoid |
Contains "wpa3" | sig_strong (green) | Modern — safest |
| All other labels (WPA2, WPA, WEP, OWE…) | #448AFF (blue) | Standard |
if (label.toLowerCase().contains("open")) {
barPaint.setColor(colorWeak);
} else if (label.toLowerCase().contains("wpa3")) {
barPaint.setColor(colorExcellent);
} else {
barPaint.setColor(Color.parseColor("#448AFF"));
}
Se encontraron N redes en tu área.
Complete Data-to-View Pipeline
scannedNetworks list
│
▼
updateStatisticsView() ← called on scan complete or tab switch
├─ qualityCounts[4]
├─ channelCounts[14]
└─ securityCounts (Map)
│
▼
statsGraph.updateData(...) ← StatisticsGraphView
│
▼
invalidate() → onDraw(Canvas)
├─ Section 1: Calidad de Señal (horizontal bars)
├─ Section 2: Uso de Canales (vertical histogram)
└─ Section 3: Tipos de Seguridad (horizontal bars)
If the Statistics tab is empty and shows “No hay datos suficientes para estadísticas”, it means no scan has been completed yet in the current session or the last scan returned zero networks in the 2410–2486 MHz range. Switch to any other tab, tap Escanear, wait for the scan to finish, then return to the Estadísticas tab — the three charts will populate immediately. If you are indoors or far from access points, try moving closer to a known router before scanning.