自定义actionbar-pulltorefresh 的样式

//定义actionbar 背景颜色和进度条颜色 文字颜色   DefaultHeaderTransformer transformer = (DefaultHeaderTransformer)  mPullToRefreshLayout  .getHeaderTransformer();   transformer.getHeaderView().findViewById(R.id.ptr_text)
.setBackgroundColor(getResources().getColor(R.color.title_bg));  TextView title = (TextView) transformer.getHeaderView().findViewById(R.id.ptr_text);  title.setTextColor(getResources().getColor(android.R.color.white));   transformer.setProgressBarColor(getResources().getColor(R.color.title_bg)); //        transformer.setPullText("下拉加载");