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Answer by Frank van Puffelen for how to add items in recyclerview if...
You're firing the onListen(items) before you've actually checked the existence. Any code that depends on data from the database must be inside the callback that fires when that data is available. Since...
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how to add items in recyclerview if firestore users collection have specific...
As you can see in the firestore screenshot, i have two users in users collection and in one user i have engagedChatChannels collection because chat is start for one user but other don't have...
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