private void writeAnimationScaleOption(int which, ListPreference pref, Object newValue) {
   try {
     float scale = Float.parseFloat(newValue.toString());
     mWindowManager.setAnimationScale(which, scale);
     updateAnimationScaleValue(which, pref);
   } catch (RemoteException e) {
   }
 }
  private void runInstrument() {
    String profileFile = null;
    boolean wait = false;
    boolean rawMode = false;
    boolean no_window_animation = false;
    Bundle args = new Bundle();
    String argKey = null, argValue = null;
    IWindowManager wm = IWindowManager.Stub.asInterface(ServiceManager.getService("window"));

    try {
      String opt;
      while ((opt = nextOption()) != null) {
        if (opt.equals("-p")) {
          profileFile = nextOptionData();
        } else if (opt.equals("-w")) {
          wait = true;
        } else if (opt.equals("-r")) {
          rawMode = true;
        } else if (opt.equals("-e")) {
          argKey = nextOptionData();
          argValue = nextOptionData();
          args.putString(argKey, argValue);
        } else if (opt.equals("--no_window_animation")) {
          no_window_animation = true;
        } else {
          System.err.println("Error: Unknown option: " + opt);
          showUsage();
          return;
        }
      }
    } catch (RuntimeException ex) {
      System.err.println("Error: " + ex.toString());
      showUsage();
      return;
    }

    String cnArg = nextArg();
    if (cnArg == null) {
      System.err.println("Error: No instrumentation component supplied");
      showUsage();
      return;
    }

    ComponentName cn = ComponentName.unflattenFromString(cnArg);
    if (cn == null) {
      System.err.println("Error: Bad component name: " + cnArg);
      showUsage();
      return;
    }

    InstrumentationWatcher watcher = null;
    if (wait) {
      watcher = new InstrumentationWatcher();
      watcher.setRawOutput(rawMode);
    }
    float[] oldAnims = null;
    if (no_window_animation) {
      try {
        oldAnims = wm.getAnimationScales();
        wm.setAnimationScale(0, 0.0f);
        wm.setAnimationScale(1, 0.0f);
      } catch (RemoteException e) {
      }
    }

    try {
      if (!mAm.startInstrumentation(cn, profileFile, 0, args, watcher)) {
        System.out.println("INSTRUMENTATION_FAILED: " + cn.flattenToString());
        showUsage();
        return;
      }
    } catch (RemoteException e) {
    }

    if (watcher != null) {
      if (!watcher.waitForFinish()) {
        System.out.println("INSTRUMENTATION_ABORTED: System has crashed.");
      }
    }

    if (oldAnims != null) {
      try {
        wm.setAnimationScales(oldAnims);
      } catch (RemoteException e) {
      }
    }
  }