Android : Progress bar in the content area

I use this "method" to create the progressbar. It work's until I don't use fragments.

Now I use fragments, a material drawer, and a WebView (of course inside a fragment). I created the progress bar, but it shows in the top of the screen.

Here is my code:

the progress bar:

progressBarLoad = new ProgressBar(getActivity().getBaseContext(), null, android.R.attr.progressBarStyleHorizontal);
        progressBarLoad.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 24));
        progressBarLoad.setProgress(100);
        progressBarLoad.setProgressDrawable(getResources().getDrawable(R.drawable.progress_horizontal_holo_light));
        FrameLayout decorView = (FrameLayout) getActivity().getWindow().getDecorView();
        decorView.addView(progressBarLoad);
        ViewTreeObserver observer = progressBarLoad.getViewTreeObserver();
        observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                progressBarLoad.setY(Main.getActionBarSize() + (float) Math.ceil(25 * getResources().getDisplayMetrics().density) - 10);

                ViewTreeObserver observer = progressBarLoad.getViewTreeObserver();
                observer.removeOnGlobalLayoutListener(this);
            }
        }); 

the main layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".Main.Main">

    <android.support.v7.widget.Toolbar
        android:id="@+id/Toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/green"
        app:popupTheme="@style/Theme.AppCompat"
        app:theme="@style/ToolbarTheme" />

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/frameLayout" />

</LinearLayout>

and finally the webView:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/SwipeContainer"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <WebView
            android:id="@+id/WebViewMain"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" />
    </android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>

And here the screenshot:

So, the question is, how can I add this progress bar in to the content screen? Not to the whole device screen.