sjordi

Hi, Just out of curiosity, are you using formfactors with FMX? I have added Android and iOS various screen sizes and adjusted them all to fit and place components. It looks like once deployed to the actual devices, it's just a joke, it's not usable and doesn't correspond to what's on screen at design time. What happens to screens with "in between" sizes? in the IDE you have Android 4" and 5" (that are barely taken into account on real 4" & 5" devices), but what if you have a 4.2" ou 4.8"? Working with all controls anchors is too much of a hassle. Anyway, let me know if you succeed in those form factors, and if you can share a tip or two, it would be wonderful. Thanks Steve

@Rollo62 and all you're right. I think the main difficulty is where to place the cursor between too much info and not enough, rendering the app worthless I'll tinker a bit over the week-end 🙂

Not my customers. They absolutely all hate so-called "web apps". They want an app that offers a consistent interface. I talk about "responsive" the way webpages are... say your screen is not as wide, then controls clutter on top of each others instead of being next to each others. That's something I want to avoid. Otherwise I would opt for web "apps" in that case with all problems related to them (controls jump to another positions when the CSS is finally loaded, things are often not aligned when responsively repositioned, doesn't work without an internet connection). I want a consistent UX. But I'll try to think more as a vertical scrollable layout on which I would have more control on them. Thanks anyway. Layouts seem to do a good job keeping things correctly together (if designed correctly). Of course cluttered GUI would be a nightmare, so I'm going to avoid that. As Sarina Dupont said, don't think "desktop" for mobile apps. But still, some control on the overall appearance is important to the original look and feel the developer intended to give his/her app.

Thanks for your input. It definitely helps using layouts to at leas resize and position things the way I want. What I don't want is a responsive-like app, behaving like a webpage But I think that using layouts with the right corner anchors actually does the trick... I'll tinker a bit more with my current app to familiarize.

Hi, Just designed test app which is mainly using a TTabControl with 7 tabs. Several TLayouts (some inside other layouts) on the first two tabs When I try to add any of the form factors then the IDE crashes and states the following message (attached) If I start a blank app and immediately add the form factors, then paste the entire structure of my app into the main form, it works, but it is crawling, very very slow. Any idea what could cause such a thing? FMX app in Delphi 10.4.2 Thanks for any light Steve idecrash.txt

I can't as it uses 3rd party components. But I nailed the problem. It's a TMS Component. I started from a blank form and added all my components one by one, adding/deleting a form factor each time. Then I noticed that the problem is the FMXPlanner (calendar). It works fine as long as you don't set either the right and/or bottom anchors. If you align it to anything, then it crashes. If you set Align=None and you remove the bottom/right anchors, you can add any form factor you want. Just wrote to TMSSoftware to find why. Thanks for your input.

Hi, From 10.4.1 to 10.4.2 all my apps on iPhone are now totally out of screen They don't fit the screen resolution anymore. Are the actual Launch Image dimensions defined somewhere? In the Icons menu in Delphi, it just says "Launch Image any appearance 2x scale" and "3x scale", but any image would do? Are you apps with launch images display them correctly on iPhones once you recompile them? Thanks for any clue. Steve

For iOS: StartUp\Documents\ For Android: .\assets\internal Use those folders if you deploy an existing DB. This is the Project Options section. At runtime you can use something like this {$IF DEFINED(iOS) or DEFINED(ANDROID)} FDConnection.Params.Values['ColumnMetadataSupported'] := 'False' ; FDConnection.Params.Values['Database'] := TPath.Combine(TPath.GetDocumentsPath, 'mydb.sqlite') ; {$ENDIF} Then do whatever you need to create/open/update, etc...

Where did you turn Metal on? To true? It should be done in the .dpr file, not in a .pas file... That makes a lot of difference. Something like .... {$R *.res} begin {$IF DEFINED(iOS) or DEFINED(MACOS)} GlobalUseMetal := True ; {$ENDIF} Application.Initialize;

I totally second that. XCode is cumbersome yet very powerful but can be intimidating too. Offering a watch equivalent to a main application (smartphone) is a must now and it would really be cool to be able to do this. But if I'm correct, the problem (technical) lies more on the Apple side than Embarcadero. Fingers crossed.

From what I know you need to code your AppleWatch app via XCode only for now. Android watches are different, it works from RadStudio, but not AppleWatch.

Hi All, I try to implement pagination from a SQLite DB that is bound to a TListView. After following the docwiki examples using RecsMax, and RecsSkip on my TFDQuery, I can't find a way to actually have the TListView refresh. If I get only 20 record chunks, I always the same 20 items on my ListView no matter what I do. The problem is that I'd like the user to be able to navigate the TListView up and down transparently without noticing that the TFDQuery is loading the previous/next chunk of data, this for all platforms, so I won't use a PullToRefresh. I tried another example that seems to work on TGrid and TStringGrid... but TListView? Anybody succeeded in getting pages of records and have TListView correctly react? Thanks for any clue Steve

Ok I tried the code above and confirm that it works fine. Disconnect has to be used instead of Close for SQLite. Now with that kind of load, we don't control the vertical scroll bar though. It is just to navigate the current view (nn records we have decided to use for pagination) And the cursor size and position are proportional to those nn records, not the entire set. Maybe I should find a way to better optimize the SQL queries as a workaround. Thanks

Thanks all, I'll try this in the coming days. Was too busy... snow shoeing ! 🙂 I'll let you know if I discover some new things.

Ok I did exactly as you did, but it didn't work. Now instead of FDQuery.Close I set FDQuery.Disconnect instead and now it works... Just like you, I wasn't aware of Disconnect. Now I'll implement this when using the TListView scrolls... looks like OnScrollViewChange will do. Except it doesn't tell in which direction you scroll. But I'll figure this out. Otherwise I'll start a new thread of TListView scrolling events (mouse + finger) 🙂 Thanks a lot for your help. Steve

Do you access an embedded DB ? If yes, do you place it in folders where you have the access right? Just tried with a MovieDB I have, embedding an SQLite database and moved the app into /Applications and it works without trouble. The DB is in the App own Contents\Resources\ directory Just like on iOS when my apps Start and then close immediately, it's related to ressources it doesn't find, like the DB. When I fix the DB path and have them in folder where the app has access rights and then it works without problems.

Well, everything is fine now. For a funny reason it didn’t install the new PA server I installed it manually, deleted the 14.2 SDK, and re-imported it. Now all the folders are correctly imported, And I can compile and deploy without problems

They released a patch today for Big Sur, XCode 12 and SDK 14... Just applied it, installed the new PAServer, compiled a very simple app under SDK 14.2 [DCC Error] E2597 ld: file '\\vmware-host\Shared Folders\Documents\Embarcadero\Studio\SDKs\iPhoneOS14.2.sdk/usr/lib/libiconv.dylib' too small (length=0) for architecture arm64 Switch to 13.7, everything's fine.

This is a known bug, when exiting Delphi 10.3.n Rio or Delphi 10.4 GExperts creates an error. EAccessViolation in module rtl270.bpl ... in module bds.exe Followed by another one : Exception EAssertionFailed in module GExpertsRS104.dll at ... Call DeactivateFontInfo before calling this. ....SynTextDrawer.pas line 475 Since I'm installing Sydney 10.4 I realized (thanks to my VM Snapshots) that GEpxerts behaves perfectly until I install TMS FixInsight. If I take FixInsight out, then the problem is gone. That may be one lead to follow. I have many TMS Components that coexist without problem with GExperts. It seems to appear only once FixInsight is installed. Some users may have that SynTextDrawer error too without this component, but you never know. Just my two cents

I actually found a workaround to let GExperts exit without problem: I install it first before all other FMX, VCL tools right after a clean RADStudio install. If I install it afterwards it always crashes when exiting. Probably one of the 3rd party components screws one of the DLLs and locks it. GExpert doesn't install its own. I have the feeling that the DLL causing problem is locked when GExpert is installed first and stays locked during the entire process, never replaced by anything else, thus saving GExperts 🙂 Don't know...

Ah ok, thanks.

Mhhh, I was actually talking about the video component that can display it in your app. You get the video signal, but which FMX component you use to show the video? Thanks Steve

How do you get video streaming? Are you using a special FMX tool?

Hi all, Just was wondering how to actually link vertical scrollbars to TListViews using FireDac pagination. All the examples and doc about fetching limited rows for huge datasets talk about reacting to a Back or Next action (probably buttons) when you trigger the fetching of the next set, say, next 100 rows. This is done this way: FDQuery1.FetchOptions.RecsSkip := FDQuery1.FetchOptions.RecsSkip+1; But how do we connect this with a vertical scrollbar dynamic movement? Is the idea to 1- get the total number of records 2- get the current vertical scrollbar position (OnScrollViewChange) and calculate where we should proportionally be in the dataset and fetch those rows? It would be awful, very slow, and totally approximate. Or can the scrollbar be synced with the actually dataset in pagination mode in a more natural way? Thanks for any light. I prefer to ask first rather than try code for 3 days without results 🙂 Steve

Installed it in 10.4.1 at the very beginning of the full reinstall. Displayed the SynEdit crash error message. Then when everything was installed, all 3rd parties, I installed the latest GExperts DLL that has been recompiled in 10.4.1 and now no more crashes. Works flawlessly... So I suspect that the next time I'll install everything and GExperts only at the end so it's taking over all other DLLs, and nothing else can screw with it... Just a guess...