اضافية خيار اعادة تحميل الصفحة عند السحب الى الاسفل

 
final android.support.v4.widget.SwipeRefreshLayout sr = new android.support.v4.widget.SwipeRefreshLayout(this);
sr.setLayoutParams(new LinearLayout.LayoutParams(android.widget.LinearLayout.LayoutParams.MATCH_PARENT, android.widget.LinearLayout.LayoutParams.MATCH_PARENT));
linear1.addView(sr);
final WebView wb = (WebView)findViewById(R.id.webview1);
wb.getSettings().setJavaScriptEnabled(true);
linear1.removeView(wb);
linear1.post(new Runnable() { @Override public void run() { sr.addView(wb); } });
wb.setWebViewClient(new WebViewClient() { public void onPageFinished(WebView view, String url) { sr.setRefreshing(false);
}});

sr.setOnRefreshListener( new android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { wb.reload(); } } );