QuickTalk 5G — Push‑To‑Talk (PTT) Android

QuickTalk 5G is an Android Push‑To‑Talk (PTT) app written in Kotlin. It enables low‑latency audio transmission between devices on a local network (PTT) and also provides a simple VoIP‑like mode.

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Key features

• Push‑To‑Talk (PTT): press to talk, release to stop,
• VoIP‑like UDP streaming,
• Network device discovery with user selection list,
• Light / Dark themes with toggle,
• Microphone runtime permissions handling.

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Project structure — key files

• app/src/main/java/com/pans/quicktalk5g/AudioSender.kt — microphone capture, fragmentation and UDP send,
• app/src/main/java/com/pans/quicktalk5g/AudioReceiver.kt — UDP receive and playback via AudioTrack,
• app/src/main/AndroidManifest.xml — permissions & activities,
• app/src/main/res/ — layouts, icons, styles, colors,
• app/build.gradle, build.gradle — build configuration.

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Requirements

• Android Studio + Android SDK (Platform‑tools, adb),
• Gradle see gradle/wrapper/ and build.gradle for exact versions,
• Java / JDK matching project configuration.

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Build & Run

1. Open the project in Android Studio and let Gradle sync.
2. Ensure adb and SDK tools are in your PATH (on macOS add them to ~/.zshrc).
3. From project root run:

./gradlew assembleDebug
./gradlew installDebug   # requires a connected device or emulator

4. Or install APK manually:

adb install -r app/build/outputs/apk/debug/app-debug.apk

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Demo

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