Question

I kept the text file inside the asset folder & I’m able to display the whole text in a TextView in my activity. But now I need to add search function inside my activity with highlighting the searched text. Can anyone pls suggest any idea or send me code snippet
to finish this.

Thanks in Advance

Krishnakumar P

Answer 1

Use the folowing code to get highlight the text.

    void hightLightText(TextView textView, String searchString){
        try{
//if mydata.txt file is present in assets directory 
            InputStream fin = getAssets().open("mydata.txt");
            byte[] buffer = new byte[fin.available()];
            fin.read(buffer);
            String actualdata = new String(buffer);
            String withHighLightedText = actualdata.replaceAll(searchString, "<font color='red'>"+actualdata)+"</font>";
            String styledText = "This is <font color='red'>simple</font>.";
            textView.setText(Html.fromHtml(withHighLightedText), TextView.BufferType.SPANNABLE);
            }catch(Exception ex){

            }

    }