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LostInLG

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Want search/indexing app for Android

I want an app that will index every file name (possibly excluding system folders), folder name, and the contents of every file (afain, perhaps excluding system folders).  I want a simple interface for doing what, therefore, should be instantaneous searches.  Suggestions?  Items to avoid?
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Jackie Man
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Which brand / model android phone? Andtoid version?

The stock file manager can search content inside files, but only limited to PDF files and MS Office files.
Apart from the above, the app below can do the file content search.

https://plus.google.com/+niyaziate%C5%9F/posts/Kq1XtMJkg9n

Of course, it needs to do an indexing on its first run .

I am still trying it but I do not expect that it can search content of every app and the suported files formats are:

PDF, EPUB, FB2, MP3, MP4, word (DOCX), excel spreadsheet (XLSX), powerpoint presentations (PPTX), OpenOffice docs (ODT). QuickOffice files, markdown (md), cached Evernote notes.
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LostInLG

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Hi, Jackie Man.

Re ID: 41736089:  The phone is an LG Stylo G, metroPCS version (MS631, sometimes called the MS631TN).
Hi Jackie Man.

Re ID: 41736095:  You've got a bad hyperlink there.  It's linking to a page that has nothing to do with the issue at hand.
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Jackie Man
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Looks interesting.  I'm checking it out.
Jackie Man:

Looks pretty promising.  Maybe.  Hard to tell.  e.g. boolean search symtax?  Major problem I see is that there's no setting on where to put the index file.  I've got tons of room on my micro SD card but almost none in my internal memory.

More thoughts?
boolean search symtax?  

No

Major problem I see is that there's no setting on where to put the index file.  

No option to put the content to external SD card just like most apps.
So, no more suggestions?
I am afraid that there is no other similar apps.
Guess I need to learn Java.
Thanks for all of the comments.
You know, I've been noticing that the file browser I use (and LOVE), Solid Explorer, does searches very well, and too fast to be on-the-fly.  It doesn't cover the contents of files, just file names.  I may just stick with that for now.