Don't show QR code scan button on devices without cameras

Author: pimterry

app/src/main/java/tech/httptoolkit/android/MainActivity.kt

@@ -238,11 +238,18 @@ class MainActivity : AppCompatActivity(), CoroutineScope by MainScope() {
         when (mainState) {
             MainState.DISCONNECTED -> {
                 statusText.setText(R.string.disconnected_status)
+                buttonContainer.visibility = View.VISIBLE
 
-                detailContainer.addView(detailText(R.string.disconnected_details))
+                val hasCamera = this.packageManager
+                    .hasSystemFeature(PackageManager.FEATURE_CAMERA_ANY)
 
-                buttonContainer.visibility = View.VISIBLE
-                buttonContainer.addView(primaryButton(R.string.scan_button, ::scanCode))
+                if (hasCamera) {
+                    detailContainer.addView(detailText(R.string.disconnected_details))
+                    val scanQrButton = primaryButton(R.string.scan_button, ::scanCode)
+                    buttonContainer.addView(scanQrButton)
+                } else {
+                    detailContainer.addView(detailText(R.string.disconnected_no_camera_details))
+                }
 
                 val lastProxy = app.lastProxy
                 if (lastProxy != null) {

app/src/main/res/values/strings.xml

@@ -11,8 +11,8 @@
     <string name="connected_status">Connected</string>
     <string name="failed_status">Oh no!</string>
 
-    <string name="disconnected_details">To intercept this device, start HTTP Toolkit on your computer, and activate Android interception there via QR code or using ADB.
-    </string>
+    <string name="disconnected_details">To intercept this device, start HTTP Toolkit on your computer, and activate Android interception there via QR code or using ADB.</string>
+    <string name="disconnected_no_camera_details">To intercept this device, start HTTP Toolkit on your computer, and activate Android interception there using the ADB or Frida options.</string>
 
     <string name="connected_details">to %s on port %d</string>
     <string name="connected_tunnel_details">via ADB tunnel</string>