WebView加载网页进度条显示
重写WebChromeClient一个方法进行进度条显示:

@Overridepublic void onProgressChanged(WebView view, final int newProgress) {// 当加载到100%的时候 进度条自动消失// mCon.setProgress(newProgress * 100);Trace.i("newProgress is --->" + newProgress);mHandler.post(new Runnable() {@Overridepublic void run() {if (newProgress <= 15) {mCon.showLoadingDialog();} else if (newProgress == 100) {mCon.hideLoadingDialog();}}});super.onProgressChanged(view, newProgress);}