Question: i save data in firebase firestore which is only images. i fetch data from firestore by arraylist in android studio kotlin and jetpack compose. but

i save data in firebase firestore which is only images.
i fetch data from firestore by arraylist in android studio kotlin and jetpack compose.
but fatch data time taken 7 second. also i show data through lazyRow.
i want show schemer effect whenever data not received and data received , images data show.
i want explanation and detailed code of how to implement it in android studio kotlin by jatpack compose.

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