隐藏标题栏和信息栏，实现全屏显示

    /**     * hide action bar     */    private void hideActionBar() {        // Hide UI        ActionBar actionBar = getSupportActionBar();        if (actionBar != null) {            actionBar.hide();        }    }/** * set the activity display in full screen */    private void setFullScreen() {        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);    }