How can I use Tesseract in Android?

You need to use tess-two project for working with Tesseract on Android.
The tess-two contains tools for compiling the Tesseract and Leptonica libraries for use on the Android platform. It provides a Java API for accessing natively-compiled Tesseract and Leptonica APIs.

Adding tess-two to your project:

add to build.gradle:

dependencies {
    compile 'com.rmtheis:tess-two:5.4.1'
}

Using Tesseract:

import com.googlecode.tesseract.android.TessBaseAPI;

private String extractText(Bitmap bitmap) throws Exception{
    TessBaseAPI tessBaseApi = new TessBaseAPI();
    tessBaseApi.init(DATA_PATH, "eng");
    tessBaseApi.setImage(bitmap);
    String extractedText = tessBaseApi.getUTF8Text();
    tessBaseApi.end();
    return extractedText;
}

You can looking on my simple one-class example of using Tesseract for Android. It contains only 200 lines of Java code.

http://kurup87.blogspot.in/2012/03/android-ocr-tutorial-image-to-text.html here is step by step tutorial

You can refer this document, It gives ths step by step But you need to do is to set up the tesseract-android-tools project as a library project in Eclipse, and tell your project to refer to the library project. So you’ll need two projects in Eclipse,

http://rmtheis.wordpress.com/2011/08/06/using-tesseract-tools-for-android-to-create-a-basic-ocr-app/

I hope this help.....