Android Question Read stream that contains bitmap

dim · Feb 21, 2016

Hi all,
I develop an application written in Lazarus-freepascal, that creates a bitmap image after a specific process, then transforms it to a stream (TMemoryStream) and then sends it over network.

Is it possible to read that stream from an application written on B4A from an Android device ?
if yes, can you please describe how or any ideas how to implement that ?

Thank you.

lemonisdead · Feb 21, 2016

Hello,
I am not an expert but perhaps this could help : https://www.b4x.com/android/forum/t...d-and-receive-objects-instead-of-bytes.30543/

For my understanding, where is the data sent ? To a server ? Via UDP ? Thanks

dim · Feb 21, 2016

lemonisdead said:
Hello,
I am not an expert but perhaps this could help : https://www.b4x.com/android/forum/t...d-and-receive-objects-instead-of-bytes.30543/

For my understanding, where is the data sent ? To a server ? Via UDP ? Thanks

Thank you for replying, lemonisdead. The Lazarus application (windows O/S) is the server, it offers the stream at a specific port via TCP. The data is to be sent to the client Android application when it connects, in order to view the images. The main application is supposed to be (when finished) a cctv-like application.

lemonisdead · Feb 21, 2016

Thanks Dim. So you probably will have to take a look at OkHttpUtils2 too to manage the TCP connection : https://www.b4x.com/android/forum/threads/okhttp-replaces-the-http-library.54723/#content

dim · Feb 21, 2016

Thank lemonisdead, I can give it a try - sorry for asking but can it read streams as needed ?

Erel · Feb 22, 2016

The answer is yes. Read the stream with AsyncStreams (in non-prefix mode). Make sure that you received all the data as the message will be split.

The simplest way is this case is to write the received data to a temporary file until you received all the data.

Android Question Read stream that contains bitmap

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Android Question Read stream that contains bitmap

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