How to open a text file in default view on button click in android -

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i want users read instruction use android application text or pdf file when click instruction button. how should read text/pdf file on button click in default view in android?

likely best way launch intent action_view action , provide file desire.

intent intent = new intent(intent.action_view, uri.fromfile(file)); intent.settype("application/pdf");  startactivity(intent);

note dependent on there being application on device registered handle pdf mime type. can choose have text or perhaps rich text instead changing type.


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