Change notification alert icon

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<vector xmlns:android="http://schemas.android.com/apk/res/android"

    android:width="24dp"

    android:height="24dp"

    android:viewportWidth="24"

    android:viewportHeight="24">

    <path

        android:fillColor="@android:color/white"

        android:pathData="M18 17v-6c0-3.07-1.63-5.64-4.5-6.32V4c0-0.83-0.67-1.5-1.5-1.5s-1.5 0.67 -1.5 1.5v0.68C7.64 5.36 6 7.92 6 11v6H4v2h16v-2h-2zm-2 0H8v-6c0-2.48 1.51-4.5 4-4.5s4 2.02 4 4.5v6zm-6 3h4c0 1.1-0.9 2-2 2s-2-0.9-2-2zm12-9h-2c0-2.74-1.23-5.19-3.16-6.84l1.41-1.41C20.54 4.77 22 7.71 22 11zM5.75 2.75l1.41 1.41C5.23 5.81 4 8.26 4 11H2c0-3.29 1.46-6.23 3.75-8.25z" />

</vector>

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        android:focusable="true">

        <ImageView

            android:id="@+id/alert_icon"

            android:src="@drawable/ic_notifications"

            android:src="@drawable/ic_notifications_alert"

            android:background="@android:color/transparent"

            android:layout_gravity="center"

            android:layout_width="wrap_content"

    }

    private Drawable getAlertingIcon() {

        Drawable icon = getContext().getDrawable(R.drawable.ic_notifications);

        Drawable icon = getContext().getDrawable(R.drawable.ic_notifications_alert);

        icon.setTintList(Utils.getColorAccent(getContext()));

        return icon;

    }