代码实现webview中添加进度条

1.在代码中添加

mProgressBar.setProgressDrawable(drawable);

ProgressBar mProgressBar=newProgressBar(getActivity(),null,android.R.attr.progressBarStyleHorizontal);

LinearLayout.LayoutParams layoutParams =newLinearLayout.LayoutParams( LinearLayout.LayoutParams.MATCH_PARENT,8);

mProgressBar.setLayoutParams(layoutParams);

Drawable drawable = getActivity().getResources().getDrawable(R.drawable.webview_loading_line);

mProgressBar.setProgressDrawable(drawable);

webView.addView(mProgressBar);

2.webview_loading_line.xml