How to use this.setCompressedLayoutHierarchy method in Appium Android Driver

...196    return helpers.isChromeBrowser(this.opts.browserName);197  }198  async onSettingsUpdate (key, value) {199    if (key === 'ignoreUnimportantViews') {200      await this.setCompressedLayoutHierarchy(value);201    }202  }203  async startAndroidSession () {204    this.log.info(`Starting Android session`);205    // set up the device to run on (real or emulator, etc)206    this.defaultIME = await helpers.initDevice(this.adb, this.opts);207    // set actual device name, udid, platform version, screen size, model and manufacturer details.208    this.caps.deviceName = this.adb.curDeviceId;209    this.caps.deviceUDID = this.opts.udid;210    this.caps.platformVersion = await this.adb.getPlatformVersion();211    this.caps.deviceScreenSize = await this.adb.getScreenSize();212    this.caps.deviceModel = await this.adb.getModel();213    this.caps.deviceManufacturer = await this.adb.getManufacturer();214    if (this.opts.disableWindowAnimation) {...

...69  ];70  // listen for changes to ignoreUnimportantViews71  this.settings.on("update", function (update) {72    if (update.key === "ignoreUnimportantViews") {73      this.setCompressedLayoutHierarchy(update.value, update.callback);74    } else {75      update.callback();76    }77  }.bind(this));78};79Android.prototype._deviceConfigure = Device.prototype.configure;80Android.prototype.noLaunchSetup = function (cb) {81  logger.debug("Setting up Android for 'autoLaunch: false'");82  async.series([83    this.initJavaVersion.bind(this),84    this.initAdb.bind(this),85  ], function (err) { cb(err); });86};87Android.prototype.start = function (cb, onDie) {88  this.launchCb = cb;89  this.uiautomatorExitCb = onDie;90  logger.info("Starting android appium");91  async.series([92    this.initJavaVersion.bind(this),93    this.initAdb.bind(this),94    this.packageAndLaunchActivityFromManifest.bind(this),95    this.initUiautomator.bind(this),96    this.prepareDevice.bind(this),97    this.checkApiLevel.bind(this),98    this.pushStrings.bind(this),99    this.processFromManifest.bind(this),100    this.uninstallApp.bind(this),101    this.installAppForTest.bind(this),102    this.forwardPort.bind(this),103    //this.pushAppium.bind(this),104    this.initUnicode.bind(this),105    //this.pushSettingsApp.bind(this),106    //this.pushUnlock.bind(this),107    function (cb) {this.uiautomator.start(cb);}.bind(this),108    this.wakeUp.bind(this),109    this.unlock.bind(this),110    this.getDataDir.bind(this),111    this.setupCompressedLayoutHierarchy.bind(this),112    this.startAppUnderTest.bind(this),113    this.initAutoWebview.bind(this),114    this.setActualCapabilities.bind(this)115  ], function (err) {116    if (err) {117      this.shutdown(function () {118        this.launchCb(err);119      }.bind(this));120    } else {121      this.didLaunch = true;122      this.launchCb(null, this.proxySessionId);123    }124  }.bind(this));125};126Android.prototype.initUiautomator = function (cb) {127  if (this.uiautomator === null) {128    this.uiautomator = new UiAutomator(this.adb, this.args);129    this.uiautomator.setExitHandler(this.onUiautomatorExit.bind(this));130  }131  return cb();132};133Android.prototype.onLaunch = function (err) {134  var readyToGo = function () {135    this.didLaunch = true;136    this.launchCb();137  }.bind(this);138  var giveUp = function (err) {139    this.shutdown(function () {140      this.launchCb(err);141    }.bind(this));142  }.bind(this);143  if (err) {144    if (this.checkShouldRelaunch(err)) {145      logger.error(err);146      logger.error("Above error isn't fatal, maybe relaunching adb will help....");147      this.adb.waitForDevice(function (err) {148        if (err) return giveUp(err);149        readyToGo();150      });151    } else {152      giveUp(err);153    }154  } else {155    readyToGo();156  }157};158Android.prototype.restartUiautomator = function (cb) {159  async.series([160    this.forwardPort.bind(this)161    , this.uiautomator.start.bind(this.uiautomator)162    , this.setupCompressedLayoutHierarchy.bind(this)163  ], cb);164};165/*166 * Execute an arbitrary function and handle potential ADB disconnection before167 * proceeding168 */169Android.prototype.wrapActionAndHandleADBDisconnect = function (action, ocb) {170  async.series([171    function (cb) {172      this.uiautomatorIgnoreExit = true;173      action(cb);174    }.bind(this)175    , this.adb.restart.bind(this.adb)176    , this.restartUiautomator.bind(this)177  ], function (err) {178    this.uiautomatorIgnoreExit = false;179    ocb(err);180  }.bind(this));181};182Android.prototype.onUiautomatorExit = function () {183  logger.debug("UiAutomator exited");184  var respondToClient = function () {185    this.stopChromedriverProxies(function () {186      this.cleanup();187      if (!this.didLaunch) {188        var msg = "UiAutomator quit before it successfully launched";189        logger.error(msg);190        this.launchCb(new Error(msg));191        return;192      } else if (typeof this.cbForCurrentCmd === "function") {193        var error = new UnknownError("UiAutomator died while responding to " +194                                      "command, please check appium logs!");195        this.cbForCurrentCmd(error, null);196      }197      // make sure appium.js knows we crashed so it can clean up198      this.uiautomatorExitCb();199    }.bind(this));200  }.bind(this);201  if (this.adb) {202    var uninstall = function () {203      logger.debug("Attempting to uninstall app");204      this.uninstallApp(function () {205        this.shuttingDown = false;206        respondToClient();207      }.bind(this));208    }.bind(this);209    if (!this.uiautomatorIgnoreExit) {210      this.adb.ping(function (err, ok) {211        if (ok) {212          uninstall();213        } else {214          logger.debug(err);215          this.adb.restart(function (err) {216            if (err) {217              logger.debug(err);218            }219            if (this.uiautomatorRestartOnExit) {220              this.uiautomatorRestartOnExit = false;221              this.restartUiautomator(function (err) {222                if (err) {223                  logger.debug(err);224                  uninstall();225                }226              }.bind(this));227            } else {228              uninstall();229            }230          }.bind(this));231        }232      }.bind(this));233    } else {234      this.uiautomatorIgnoreExit = false;235    }236  } else {237    logger.debug("We're in uiautomator's exit callback but adb is gone already");238    respondToClient();239  }240};241Android.prototype.checkShouldRelaunch = function (launchErr) {242  if (launchErr.message === null || typeof launchErr.message === 'undefined') {243    logger.error("We're checking if we should relaunch based on something " +244                 "which isn't an error object. Check the codez!");245    return false;246  }247  var msg = launchErr.message.toString();248  var relaunchOn = [249    'Could not find a connected Android device'250    , 'Device did not become ready'251  ];252  var relaunch = false;253  _.each(relaunchOn, function (relaunchMsg) {254    relaunch = relaunch || msg.indexOf(relaunchMsg) !== -1;255  });256  return relaunch;257};258Android.prototype.checkApiLevel = function (cb) {259  this.adb.getApiLevel(function (err, apiLevel) {260    if (err) return cb(err);261    logger.info('Device API level is:', parseInt(apiLevel, 10));262    if (parseInt(apiLevel) < 17) {263      var msg = "Android devices must be of API level 17 or higher. Please change your device to Selendroid or upgrade Android on your device.";264      logger.error(msg); // logs the error when we encounter it265      return cb(new Error(msg)); // send the error up the chain266    }267    cb();268  });269};270Android.prototype.decorateChromeOptions = function (caps) {271  // add options from appium session caps272  if (this.args.chromeOptions) {273    _.each(this.args.chromeOptions, function (val, option) {274      if (typeof caps.chromeOptions[option] === "undefined") {275        caps.chromeOptions[option] = val;276      } else {277        logger.warn("Cannot pass option " + caps.chromeOptions[option] + " because Appium needs it to make chromeDriver work");278      }279    });280  }281  // add device id from adb282  caps.chromeOptions.androidDeviceSerial = this.adb.curDeviceId;283  return caps;284};285Android.prototype.processFromManifest = function (cb) {286  if (!this.args.app) {287    return cb();288  } else { // apk must be local to process the manifest.289    this.adb.processFromManifest(this.args.app, function (err, process) {290      var value = process || this.args.appPackage;291      this.appProcess = value;292      logger.debug("Set app process to: " + this.appProcess);293      cb();294    }.bind(this));295  }296};297Android.prototype.pushStrings = function (cb, language) {298  var outputPath = path.resolve(this.args.tmpDir, this.args.appPackage);299  var remotePath = '/data/local/tmp';300  var stringsJson = 'strings.json';301  this.extractStrings(function (err) {302    if (err) {303      if (!fs.existsSync(this.args.app)) {304        // apk doesn't exist locally so remove old strings.json305        logger.debug("Could not get strings, but it looks like we had an " +306                     "old strings file anyway, so ignoring");307        return this.adb.rimraf(remotePath + '/' + stringsJson, function (err) {308          if (err) return cb(new Error("Could not remove old strings"));309          cb();310        });311      } else {312        // if we can't get strings, just dump an empty json and continue313        logger.warn("Could not get strings, continuing anyway");314        var remoteFile = remotePath + '/' + stringsJson;315        return this.adb.shell("echo '{}' > " + remoteFile, cb);316      }317    }318    var jsonFile = path.resolve(outputPath, stringsJson);319    this.adb.push(jsonFile, remotePath, function (err) {320      if (err) return cb(new Error("Could not push strings.json"));321      cb();322    });323  }.bind(this), language);324};325Android.prototype.getStrings = function (language, stringFile, cb) {326  if (this.language && this.language === language) {327    // Return last strings328    return cb(null, {329      status: status.codes.Success.code,330      value: this.apkStrings331    });332  }333  // Extract, push and return strings334  return this.pushStrings(function () {335    this.proxy(["updateStrings", {}], function (err, res) {336      if (err || res.status !== status.codes.Success.code) return cb(err, res);337      cb(null, {338        status: status.codes.Success.code,339        value: this.apkStrings340      });341    }.bind(this));342  }.bind(this), language);343};344Android.prototype.pushAppium = function (cb) {345  logger.debug("Pushing appium bootstrap to device...");346  var binPath = path.resolve(__dirname, "..", "..", "..", "build",347      "android_bootstrap", "AppiumBootstrap.jar");348  fs.stat(binPath, function (err) {349    if (err) {350      cb(new Error("Could not find AppiumBootstrap.jar; please run " +351                   "'grunt buildAndroidBootstrap'"));352    } else {353      this.adb.push(binPath, this.remoteTempPath(), cb);354    }355  }.bind(this));356};357Android.prototype.startAppUnderTest = function (cb) {358  this.startApp(this.args, cb);359};360Android.prototype.startApp = function (args, cb) {361  if (args.androidCoverage) {362    this.adb.androidCoverage(args.androidCoverage, args.appWaitPackage,363      args.appWaitActivity, cb);364  } else {365    this.adb.startApp({366      pkg: args.appPackage,367      activity: args.appActivity,368      action: args.intentAction,369      category: args.intentCategory,370      flags: args.intentFlags,371      waitPkg: args.appWaitPackage,372      waitActivity: args.appWaitActivity,373      optionalIntentArguments: args.optionalIntentArguments,374      stopApp: args.stopAppOnReset || !args.dontStopAppOnReset375    }, cb);376  }377};378Android.prototype.stop = function (cb) {379  if (this.shuttingDown) {380    logger.debug("Already in process of shutting down.");381    return cb();382  }383  this.shuttingDown = true;384  var completeShutdown = function (cb) {385    if (this.adb) {386      this.adb.goToHome(function () {387        this.shutdown(cb);388      }.bind(this));389    } else {390      this.shutdown(cb);391    }392  }.bind(this);393  if (this.args.fullReset) {394    logger.debug("Removing app from device");395    this.uninstallApp(function (err) {396      if (err) {397        // simply warn on error here, because we don't want to stop the shutdown398        // process399        logger.warn(err);400      }401      completeShutdown(cb);402    });403  } else {404    completeShutdown(cb);405  }406};407Android.prototype.cleanup = function () {408  logger.debug("Cleaning up android objects");409  this.adb = null;410  this.uiautomator = null;411  this.shuttingDown = false;412};413Android.prototype.shutdown = function (cb) {414  var next = function () {415    this.stopChromedriverProxies(function () {416      if (this.uiautomator) {417        this.uiautomator.shutdown(function () {418          this.cleanup();419          cb();420        }.bind(this));421      } else {422        this.cleanup();423        cb();424      }425    }.bind(this));426  }.bind(this);427  if (this.adb) {428    this.adb.endAndroidCoverage();429    if (this.args.unicodeKeyboard && this.args.resetKeyboard && this.defaultIME) {430      logger.debug('Resetting IME to \'' + this.defaultIME + '\'');431      this.adb.setIME(this.defaultIME, function (err) {432        if (err) {433          // simply warn on error here, because we don't want to stop the shutdown434          // process435          logger.warn(err);436        }437        if (this.adb) {438          this.adb.stopLogcat(function () {439            next();440          }.bind(this));441        }442      }.bind(this));443    } else {444      this.adb.stopLogcat(function () {445        next();446      }.bind(this));447    }448  } else {449    next();450  }451};452Android.prototype.proxy = deviceCommon.proxy;453Android.prototype.respond = deviceCommon.respond;454Android.prototype.initQueue = function () {455  this.queue = async.queue(function (task, cb) {456    var action = task.action,457        params = task.params;458    this.cbForCurrentCmd = cb;459    if (this.adb && !this.shuttingDown) {460      this.uiautomator.sendAction(action, params, function (response) {461        this.cbForCurrentCmd = null;462        if (typeof cb === 'function') {463          this.respond(response, cb);464        }465      }.bind(this));466    } else {467      this.cbForCurrentCmd = null;468      var msg = "Tried to send command to non-existent Android device, " +469                 "maybe it shut down?";470      if (this.shuttingDown) {471        msg = "We're in the middle of shutting down the Android device, " +472              "so your request won't be executed. Sorry!";473      }474      this.respond({475        status: status.codes.UnknownError.code476      , value: msg477      }, cb);478    }479  }.bind(this), 1);480};481Android.prototype.push = function (elem) {482  this.queue.push({action: elem[0][0], params: elem[0][1] || {}}, elem[1]);483};484Android.prototype.wakeUp = function (cb) {485  // requires an appium bootstrap connection loaded486  logger.debug("Waking up device if it's not alive");487  this.proxy(["wake", {}], cb);488};489Android.prototype.getDataDir = function (cb) {490  this.proxy(["getDataDir", {}], function (err, res) {491    if (err) return cb(err);492    this.dataDir = res.value;493    logger.debug("dataDir set to: " + this.dataDir);494    cb();495  }.bind(this));496};497// Set CompressedLayoutHierarchy on the device based on current settings object498Android.prototype.setupCompressedLayoutHierarchy = function (cb) {499  // setup using cap500  if (_.has(this.args, 'ignoreUnimportantViews')) {501    // set the setting directly on the internal _settings object, this way we don't trigger an update event502    this.settings._settings.ignoreUnimportantViews = this.args.ignoreUnimportantViews;503  }504  if (_.isUndefined(this.getSetting("ignoreUnimportantViews"))) {505    return cb();506  }507  this.setCompressedLayoutHierarchy(this.getSetting("ignoreUnimportantViews"), cb);508};509// Set CompressedLayoutHierarchy on the device510Android.prototype.setCompressedLayoutHierarchy = function (compress, cb) {511  this.proxy(["compressedLayoutHierarchy", {compressLayout: compress}], cb);512};513Android.prototype.waitForActivityToStop = function (cb) {514  this.adb.waitForNotActivity(this.args.appWaitPackage, this.args.appWaitActivity, cb);515};516Android.prototype.setActualCapabilities = function (cb) {517  this.capabilities.deviceName = this.adb.udid || this.adb.curDeviceId;518  this.adb.shell("getprop ro.build.version.release", function (err, version) {519    if (err) {520      logger.warn(err);521    } else {...