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Android getting EditText content from a while loop in seperate method

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In my problem, I have my MainActivity, with a TextView and EditText, and a Thread, excecuting a method, which should send out messages to the TextView and receive the content of an EditText. The problem is receiving text from the EditText, since it throws the exception:

android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.

I have looked at the possibilities of runAsUiThread() and Handler, but i haven't found a solution to pass the content of the EditText yet.

Have I overseen a possibility with the Handler to pass content back, or is there some other solution here?

I'll try to post my cropped code so you will gain some knowledge about what I am trying to achieve.

Any help is greatly appreciated.
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Welcome to the Ranch
You have arrived in the wrong place; this forum is for discussing the website itself. I shall try moving you to the Android forum and see whether people there can help.
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