Display screen or a portion thereof with an animated graphical user interface

FIG. 1 is a front view of a first image in a sequence of a first embodiment for a display screen or a portion thereof with an animated graphical user interface showing our new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a first image in a sequence of a second embodiment thereof;

FIG. 4 is a front view of a second image thereof;

FIG. 5 is a front view of a first image in a sequence of a third embodiment thereof;

FIG. 6 is a front view of a second image thereof;

FIG. 7 is a front view of a first image in a sequence of a fourth embodiment thereof; and,

FIG. 8 is a front view of a second image thereof.

The broken lines showing a display screen or a portion thereof in all views are for the purpose of illustrating environment and form no part of the claimed design. The hatching and cross-hatching in all views are representative of color and the use of color is part of the claimed design.

The appearance of the animated images sequentially transitions between the images shown in FIGS. 1-2 , FIGS. 3-4 , FIGS. 5-6 , or FIGS. 7-8 . The process or period in which one image transitions to another forms no part of the claimed design.