Disable distracting status bar ticker text in car mode.

import android.app.IActivityManager;

import android.app.IUiModeManager;

import android.app.KeyguardManager;

import android.app.StatusBarManager;

import android.bluetooth.BluetoothAdapter;

import android.bluetooth.BluetoothDevice;

import android.content.ActivityNotFoundException;

    private boolean mKeyguardDisabled;

    private LockPatternUtils mLockPatternUtils;

    private StatusBarManager mStatusBarManager;    

    // The broadcast receiver which receives the result of the ordered broadcast sent when

    // the dock state changes. The original ordered broadcast is sent with an initial result

    // code of RESULT_OK. If any of the registered broadcast receivers changes this value, e.g.,

            // Disabling the car mode clears the night mode.

            setMode(Configuration.UI_MODE_TYPE_NORMAL, MODE_NIGHT_NO);

        }

        if (mStatusBarManager == null) {

            mStatusBarManager = (StatusBarManager) mContext.getSystemService(Context.STATUS_BAR_SERVICE);

        }

        // Fear not: StatusBarService manages a list of requests to disable

        // features of the status bar; these are ORed together to form the

        // active disabled list. So if (for example) the device is locked and

        // the status bar should be totally disabled, the calls below will

        // have no effect until the device is unlocked.

        if (mStatusBarManager != null) {

            mStatusBarManager.disable(enabled 

                ? StatusBarManager.DISABLE_NOTIFICATION_TICKER

                : StatusBarManager.DISABLE_NONE);

        }

    }

    private void setMode(int modeType, int modeNight) throws RemoteException {