public static List<ResolveInfo> getBrowserList(Context context) {

        PackageManager packageManager = context.getPackageManager();

        Intent intent = new Intent(Intent.ACTION_VIEW);

        intent.addCategory(Intent.CATEGORY_BROWSABLE);

        intent.setData(Uri.parse("http://www.baidu.com/"));

        List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 
　　　　　　　　　　　　　　　　　　　　　　　PackageManager.MATCH_DEFAULT_ONLY);

        return activities;

    }

Intent intent = new Intent();

intent.setAction(Intent.ACTION_VIEW);

intent.addCategory(Intent.CATEGORY_DEFAULT);

intent.setData(Uri.parse("http://www.baidu.com/")); 
ComponentName name = new ComponentName("android",
"com.android.internal.app.ResolverActivity"); 
intent.setComponent(name); 
context.startActivity(intent);

// Only display the first matches that are either of equal

// priority or have asked to be default options.

ResolveInfo r0 = currentResolveList.get(0);

for (int i=1; i<N; i++) {

     ResolveInfo ri = currentResolveList.get(i);

     if (r0.priority != ri.priority ||

         r0.isDefault != ri.isDefault) {

         while (i < N) {

           if (mOrigResolveList == currentResolveList) {

               mOrigResolveList = new ArrayList<ResolveInfo>(mOrigResolveList);

           }

           currentResolveList.remove(i);

           N--;

        }

     }

 }

public static List<ResolveInfo> getBrowserList(Context context) {

        PackageManager packageManager = context.getPackageManager();

        Intent intent = new Intent(Intent.ACTION_VIEW);

        intent.addCategory(Intent.CATEGORY_BROWSABLE);

        intent.setData(Uri.parse("http://www.baidu.com/"));

        List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 
　　　　　　　　　　　　　　　　　　　　　　   PackageManager.MATCH_DEFAULT_ONLY);

        ResolveInfo r0 = activities.get(0);

        Iterator<ResolveInfo> activity_iter = activities.iterator();

        while (activity_iter.hasNext()) {

            ResolveInfo resolveInfo = activity_iter.next();

            if (r0.priority != resolveInfo.priority || 
　　　　　　　　　 r0.isDefault != resolveInfo.isDefault) {

                activities.remove(resolveInfo);

            }

        }

        return activities;

    }