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Until now I used PackageManager to check which applications were installed (for example WhatsApp) Currently google requires QUERY_ALL_PACKAGES in Manifest in order to have a list of Installed Packages. Is it possible to know if WhatsApp is installed, via tried through some kind of Try-Catch error? Sub APKinstalada(packagename As String) As Boolean Try Dim PM As PackageManager ...

how to fix? EDIT: SOLVED See the file attached by Erel at the end of this thread....

B4XPages makes many things simple and even trivial. As Android developers, we are dealing with these challenges for many years now so it might take us a while to understand how simple things can be. As explained in B4XPages tutorial, there are two purposes for B4XPages: Provide a cross platform layer. Make it simple to develop B4A apps. The advantages of the cross platform layer are clear. B4XP...

Hi the next step .....but always with the same problem of updating the component (VMDataTable) dt1 = VMDataTable in a module gestDatiArc is show and only the indication of the number of records in the pagination is updated but it does not show the name of the columns and records I read as you recommended (mashiane) the tutorial on VUE but it is not clear to me why dt1 does not update With Log(dt1...

(1) The Tileset .png file is given with "pink" as backgroundcolor to represent transparent pixels (2) In the tool "Tiled" this is considered automatically. (3) On the Form the surrogate-color "pink" should be transparent. What should be done to make the tile backgrounds transparent? 82651 Code used: Private Sub GraphicCache_Put_Characters Log("#-Sub...

I am testing the new GooglePlayBilling library v7.00 I get an error on line #99 when calling LaunchBillingFlow for subscriptions. Result = billing.LaunchBillingFlow(SkuDetails.Get(0)) SkuDetails.Get(0) has value: ProductDetails{jsonString='{"productId":"weekly_1","type":"subs","title":"Weekly RM1.99 (In App Billing Demo)","nam...

Hello, I am upgrading a widget-enabled app to targetSDK 31. When I install the widget, it does not load and I get an error. java.lang.RuntimeException: Unable to start receiver com.tempusumbra.solarwidget.solarw4x2$solarw4x2_BR: android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service com.tempusumbra.solarwidget/.sol...

P.S. Solved - see post #7 Something isn't working properly. I tried for hours :confused: , even with the help of Copilot, without being able to solve the problem. Until I realized that the example project attached to the thread: https://www.b4x.com/android/forum/threads/b4x-clvexpandable-allows-expanding-or-collapsing-xcustomlistview-items.106148/ has the same problem. The project works fine if the number of items is 20: 170080 which is the value in the project. If you change it to 2, 3...

I have an app with db. In app, I delete database.db from File.DirInternal. Then I try to acces to a table and the app crash of course. I am sure the db file is deleted. Then I uninstall the app from my device. and reinstall it. My app create a fresh database file with a empty table. Then a load table and surprise. The table is not empty. I try all procedure above many time and the table have s...

How to move the B4XBreadCrumb from the last page that contained it (the last one shown) to the current page? I should write code in the Appear event of the current page, that's the only thing I can figure out ? No, also another: that I will most likely have to put the B4XBreadCrumb in a public panel and move this one. P.S. 2. Another option is to take the panel from the previous page and ...