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Welcome back.

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Now, at this point, a little challenge for you tried to do the same thing for the Sinon button, so.

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Pretty much all the signs and activity you can see this layout is what I want to have in the end.

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So this is the activity that I want you to prepare.

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So please go ahead and try to do that yourself.

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I mean, you have seen everything you need to do for this and the last video where we create the sign

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up activity and everything.

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All right.

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So try to do that yourself.

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All right, so I hope you tried it.

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So first of all, we will need a new activity.

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Which will be our sign then activity.

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So here, a sign in activity.

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Then we go to our manifest, we do the same orientation and theming for assignment activity.

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We prepared the different strengths that we will need for it.

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And our case should just be this one here, signing description, text.

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The rest is pretty much the same right then in the dimensions, we just need one other dimension because

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we can use the same that we had already.

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So this authentication screen margin top is a little different.

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If we compare.

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Sign in.

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And then sign up.

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And then in the sign in.

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XML file here, we basically have the same code as in the sign up one.

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The only difference is that we.

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Now, just have email and password and to name added text is not in there.

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OK, the rest is pretty much the same.

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The other difference that we have is or something that I want to change is the.

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But name and that should be at the very bottom, so here, putting a sign in.

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Actually, here, it's fine because I think we changed it in the other one, right, so it's going to

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be fine this way.

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So this one is going to be putting a sign in.

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So that's the XML file.

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You can, of course, download it and check it out in more detail.

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But we've looked through it in the last video, so I think it's not going to add that much value.

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So then let's go over to sign in activity, because here we want to do the same things as we've done

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here.

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So we also have this set up action bar, which we're going to do the same thing with at this point.

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You could, of course, go ahead and.

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Yet an external.

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Class for it, where you have such a function name or such a function that you can then reuse, but

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I think in this case it's still just OK, all right.

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To copy and pasting here is just going to be fine for now.

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OK, so here, set up a bar.

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But as I said, if you would go ahead and re duplicate this code over and over at one point, it would

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really make sense to go ahead and create a helper class which will just take care of methods that are

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reused all the time.

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All the time.

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Yeah.

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As we see here, we used in this case to set up action bar is reduced, could of course create an object

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of order, sign up activity and then called the site up action bar from there.

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But that wouldn't make too much sense, I think.

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So let's just do it in here directly.

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And then, of course, we also want to set the flags so that we don't have the bar at the top, so let's

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go and get rid of this layout bar.

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Then we need a way to get here, and that's from the intro activity, so here we do the same thing as

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we have done with our sign up intro sew button sign in intro that set on a click listener.

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And of course, we don't want to go to the sign up activity.

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We want to go to the sign in activity and the rest is pretty much the same here.

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All right, and at this point, we can test it, I tried it and you could have skipped this video,

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of course, if you tried it and were successful.

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But basically this is going to be the approach for creating these kind of activities for us.

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All right, so Produ Menasche, let's sign in this time.

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And sent me to the sign up, so let me go to the sign and I get this.

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This time it worked.

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So sign in.

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Okay, so it seems there was some bug before.

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I'm not sure what it was.

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Let's see if we find this bug again.

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Well, that works fine.

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OK, so at this point, it's finally time to look into Firebase and how to use authentication in order

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to only allow the user to login if he already has an account and if it has entered the right account

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details and of course, also allow him to create a new account.

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All right.

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So let's do that in the next video.

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See you there.