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FloatingActionButton fab = (FloatingActionButton)view.findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            int counter = 0;
            @Override
            //do code here
            public void onClick(View view) {
                if(insuranceRadioGroup.getCheckedRadioButtonId() == -1){
                    Toast messageBox = Toast.makeText(getActivity() , "Select insurance to remove" , Toast.LENGTH_SHORT);
                    messageBox.show();
                }
                else {
                    DeleteInsurance();
                    insuranceRadioGroup.removeAllViews();
                    GetInsurance();
                    GenerateRadioButton(counter);
                    Toast messageBox = Toast.makeText(getActivity() , "Insurance removed" , Toast.LENGTH_SHORT);
                    messageBox.show();
                }
                return;
            }
        });

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="@dimen/horizontalAlignmentWithTitleBar"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    tools:context="com.example.avitah.Fragment.Insurance.InsuranceHistoryFragment">

    <!-- TODO: Update blank fragment layout -->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Insurance history"
        android:id="@+id/textView"
        android:textAlignment="center" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <android.support.design.widget.FloatingActionButton
                android:id="@+id/fab"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom|end"
                android:layout_margin="@dimen/fab_margin"
                android:src="@drawable/ic_remove_black_24dp" />
        </LinearLayout>
    </ScrollView>
</LinearLayout>

//in xml layout
 <android.support.design.widget.FloatingActionButton
                android:id="@+id/fab"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom|end"
                android:layout_margin="@dimen/fab_margin"
                android:src="@drawable/ic_remove_black_24dp" />
                

//in java class
 FloatingActionButton fab = (FloatingActionButton)view.findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with yvfour own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });