Compile & run APKs
in the cloud.

#!/usr/bin/env python3
import json, urllib.request, base64

URL = "https://clawtank.app/v1/build"

MAIN = """package com.clawtank.app
import android.os.Bundle
import android.view.Gravity
import android.widget.FrameLayout
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity

class MainActivity : AppCompatActivity() {
    override fun onCreate(s: Bundle?) {
        super.onCreate(s)
        val root = FrameLayout(this)
        root.setBackgroundColor(0xFF000000.toInt())
        val tv = TextView(this).apply {
            text = "wow"; textSize = 48f
            setTextColor(0xFFFFFFFF.toInt()); gravity = Gravity.CENTER
        }
        root.addView(tv, FrameLayout.LayoutParams(-2, -2, Gravity.CENTER))
        setContentView(root)
    }
}
"""

payload = {
    "files": {
        "MainActivity.kt": MAIN,
        "strings.xml": '<resources><string name="app_name">wow</string></resources>',
        "colors.xml": '<resources><color name="black">#FF000000</color></resources>',
    },
    "run": True,
    "logcat_lines": 200,
}

req = urllib.request.Request(
    URL, data=json.dumps(payload).encode(),
    headers={"Content-Type": "application/json"}, method="POST")
with urllib.request.urlopen(req, timeout=300) as r:
    body = json.loads(r.read())

print(body["status"], body.get("build_ms"), "ms")
for i, b64 in enumerate(body.get("screenshots") or []):
    open(f"shot_{i+1}.png", "wb").write(base64.b64decode(b64))
    print(f"  wrote shot_{i+1}.png")
logcat = body.get("logcat") or ""
print("--- logcat ---")
print(logcat if logcat else "(empty)")
if body.get("build_log"):
    print("--- build_log (tail) ---")
    print("\n".join((body["build_log"] or "").splitlines()[-20:]))

#!/usr/bin/env python3
import json, urllib.request, base64

URL = "https://clawtank.app/v1/build"

MAIN = """package com.clawtank.app

import android.graphics.Color
import android.os.Bundle
import android.view.Gravity
import android.widget.FrameLayout
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Root container
        val root = FrameLayout(this).apply {
            setBackgroundColor(Color.parseColor("#111111"))
        }

        // Initial "tap me" label (acts as our button)
        val tapMe = TextView(this).apply {
            text = "tap me"
            textSize = 36f
            setTextColor(Color.WHITE)
            gravity = Gravity.CENTER
            isClickable = true
            isFocusable = true
        }

        // Make it fill the screen so the whole area is tappable
        root.addView(
            tapMe,
            FrameLayout.LayoutParams(
                FrameLayout.LayoutParams.MATCH_PARENT,
                FrameLayout.LayoutParams.MATCH_PARENT
            )
        )

        // On tap: turn everything red and show "swag"
        tapMe.setOnClickListener {
            root.setBackgroundColor(Color.RED)
            tapMe.text = "TAPPED"
            tapMe.textSize = 72f
        }

        setContentView(root)
    }
}
"""

payload = {
    "files": {
        "MainActivity.kt": MAIN,
        "strings.xml": '<resources><string name="app_name">demo</string></resources>',
    },
    "run": True,
    "script": [
        {"at": 2.0, "action": "screenshot"},
        {"at": 3.0, "action": "tap", "x": 360, "y": 800},
        {"at": 4.0, "action": "screenshot"},
        {"at": 5.0, "action": "swipe",
         "x1": 360, "y1": 1200, "x2": 360, "y2": 400},
        {"at": 6.5, "action": "screenshot"},
    ],
}

req = urllib.request.Request(
    URL, data=json.dumps(payload).encode(),
    headers={"Content-Type": "application/json"}, method="POST")
with urllib.request.urlopen(req, timeout=300) as r:
    body = json.loads(r.read())

print(body["status"], len(body.get("screenshots") or []), "shots")
for i, b64 in enumerate(body.get("screenshots") or []):
    open(f"shot_{i+1}.png", "wb").write(base64.b64decode(b64))
    print(f"  wrote shot_{i+1}.png")
print("--- logcat ---")
print(body.get("logcat") or "(empty)")
print("--- steps ---")
print(body.get("steps") or [])

#!/usr/bin/env python3
# pip install websockets
import asyncio, json, websockets

URL = "wss://clawtank.app/ws/stream"

async def main():
    async with websockets.connect(URL, max_size=None) as ws:
        # wait for assigned / building / ready
        while True:
            msg = await ws.recv()
            if isinstance(msg, bytes):
                # H.264 frame — first byte is flags
                flags, payload = msg[0], msg[1:]
                print(f"frame flags={flags:#x} size={len(payload)}")
                continue
            data = json.loads(msg)
            print("<", data.get("type"), data)
            if data.get("type") == "ready":
                await ws.send(json.dumps({"type": "ready"}))
                # tap center of screen after a moment
                await asyncio.sleep(2)
                await ws.send(json.dumps({
                    "type": "tap",
                    "x": data.get("width", 720) // 2,
                    "y": data.get("height", 1280) // 2,
                }))
            if data.get("type") in ("expired", "emulator_offline", "error"):
                break

asyncio.run(main())