wait-for-emulator.sh

#!/bin/bash
# wait for emulator to be ready
# thanks to https://gist.github.com/d4vidi/7862d60375b38f8970f824c4ce0ad2a9

echo ""
echo "[Waiting for launcher to start]"
LAUNCHER_READY=
while [[ -z ${LAUNCHER_READY} ]]; do
    UI_FOCUS=`adb shell dumpsys window windows 2>/dev/null | grep -i mCurrentFocus`
    echo "(DEBUG) Current focus: ${UI_FOCUS}"

    case $UI_FOCUS in
    *"Launcher"*)
        LAUNCHER_READY=true
    ;;
    "")
        echo "Waiting for window service..."
        sleep 3
    ;;
    *"Not Responding"*)
        echo "Detected an ANR! Dismissing..."
        adb shell input keyevent KEYCODE_DPAD_DOWN
        adb shell input keyevent KEYCODE_DPAD_DOWN
        adb shell input keyevent KEYCODE_ENTER
    ;;
    *"Isn't responding"*)
        echo "Detected an ANR! Dismissing..."
        adb shell input keyevent KEYCODE_DPAD_DOWN
        adb shell input keyevent KEYCODE_DPAD_DOWN
        adb shell input keyevent KEYCODE_ENTER
    ;;
    *)
        echo "Waiting for launcher..."
        sleep 3
    ;;
    esac
done

echo "Launcher is ready :-)"