gistfile1.txt

public class DumpCommand extends Command {

    private static final File DEFAULT_DUMP_FILE = new File(
            Environment.getExternalStorageDirectory(), "window_dump.xml");

    public DumpCommand() {
        super("dump");
    }

    @Override
    public String shortHelp() {
        return "creates an XML dump of current UI hierarchy";
    }

    @Override
    public String detailedOptions() {
        return "    dump [file]\n"
            + "      [file]: the location where the dumped XML should be stored, default is\n      "
            + DEFAULT_DUMP_FILE.getAbsolutePath() + "\n";
    }

    @Override
    public void run(String[] args) {
        File dumpFile = DEFAULT_DUMP_FILE;
        if (args.length > 0) {
            dumpFile = new File(args[0]);
        }
        UiTestAutomationBridge bridge = new UiTestAutomationBridge();
        bridge.connect();
        // It appears that the bridge needs time to be ready. Making calls to the
        // bridge immediately after connecting seems to cause exceptions. So let's also
        // do a wait for idle in case the app is busy.
        bridge.waitForIdle(1000, 1000 * 10);
        AccessibilityNodeInfoDumper.dumpWindowToFile(
                bridge.getRootAccessibilityNodeInfoInActiveWindow(), dumpFile);
        bridge.disconnect();
        System.out.println(
                String.format("UI hierchary dumped to: %s", dumpFile.getAbsolutePath()));
    }

}