Android Question How do I make a service run at the moment I want while I run another application in the foreground?

[carlos7000]

I'm trying to make an application that remains running in the background, ready to take a screenshot. But I don't know how to make it take the screenshot at the moment I need it. On my Motorola, I just have to put 3 fingers on the screen to take a screenshot, but I can't do that on my tv box. I've tried a couple of applications from Google Play, but they didn't work, so I thought, if it wasn't too difficult, I could create my own screenshot application. I already got the code from another post, which works. But I don't know how, being in an application that runs in the foreground, to make the one that takes the screenshot run at the moment I want it to.

 

[carlos7000]

I have found this post (https://www.b4x.com/android/forum/t...events-while-app-is-in-the-background.124899/), I have downloaded an example that Erel provides, but although it compiles and runs, when I press the volume keys, I don't see anything happening. I don't understand the operation of Erel's example.

 

[Erel]

The relevant example is this one: Background location tracking

 

[carlos7000]

Hi Erel. Thank you very much for your response. Although I'm not an expert, thanks to your responses, I'm already using 'services' in some of my applications. I found a code on the forum that may be useful for me to make a screenshot (https://www.b4x.com/android/forum/threads/b4a-ah_takescreenshot-take-a-screenshot-library.130872/). I put the code in a service, thinking that maybe it's the correct way to take a screenshot.

But to test the code, I need some way to tell the program to take the capture. I want to run the program on a TV box to capture phone numbers, addresses and other data. The TV box does not have physical buttons. I have tried several Google capture programs, but they require pressing the volume or holding 3 fingers on the screen. Please help me.

 

[Erel]

The only way to take screenshots of other apps is with: https://www.b4x.com/android/forum/threads/b4a-b4xpages-screenrecorder-screenshots.71348/#content

 

[teddybear]

But to test the code, I need some way to tell the program to take the capture. I want to run the program on a TV box to capture phone numbers, addresses and other data. The TV box does not have physical buttons. I have tried several Google capture programs, but they require pressing the volume or holding 3 fingers on the screen. Please help me.

Do you have TV box remote? if yes you can use it to take the capture.

 

[carlos7000]

The only way to take screenshots of other apps is with: https://www.b4x.com/android/forum/threads/b4a-b4xpages-screenrecorder-screenshots.71348/#content

I have not been able to test the program because it does not compile.

 

[carlos7000]

When trying to compile the program, this message appears to me.

B4A Version: 12.00 Parsing code. (0.01s) Java Version: 11 Building folders structure. (0.01s) Running custom action. Error​

ROBOCOPY :: Efficient File Copy Tool​

Start: Sunday, January 1, 2023 12:34:42 AM Source : C:\Users\Carlos\Desktop\SCREEN1\B4XPAG1\Shared Files
Destination : C:\Users\Carlos\Desktop\SCREEN1\B4XPAG1\B4A\Files
Files: .

Options: . /DCOPYA /COPYAT /R:1000000 /W:30​

2023/01/01 00:34:42 ERROR 2 (0x00000002) Getting File System Type of Source C:\Users\Carlos\Desktop\SCREEN1\B4XPAG1\Shared Files
The system cannot find the file specified.

 

[carlos7000]

The only way to take screenshots of other apps is with: https://www.b4x.com/android/forum/threads/b4a-b4xpages-screenrecorder-screenshots.71348/#content

I was looking at the code, and it seems simple to capture video. Is it possible to only capture images and export them to .jpg files?"

 

[carlos7000]

Upon reviewing the code for the application, I see that it only captures video.

 

[teddybear]

When trying to compile the program, this message appears to me.

It has told you that cannot find the file specified. you need create Shared Files folder or delete line #CustomBuildAction in B4xMainPage module.

 

[carlos7000]

It has told you that cannot find the file specified. you need create Shared Files folder or delete line #CustomBuildAction in B4xMainPage module.

Comment on the line that you mentioned to me. I compile it and it works correctly. Thank you very much.