How to make a part of text bold from arraylist in android

Question

In my android app, I am retrieving data from mysql database, storing them in arraylist and displaying them in a listview. Now I want to make a perticular String bold, i.e. if in my arraylist, there's data something like, "Me: hello.." then in listview it should display as " Me: hello.. " . Here "Me:" will be first string in list but don't know in which row. I am not getting idea how to do this. Please someone help me..!!

Why don't you make your arraylist hold objects that contain the text you hold as a string, and then whether or not they are bold as a boolean? — DreadHeadedDeveloper, Nov 14 '14 at 05:55
while creating a view in your adapter you can make a check on the value of array list item if the condition passes then make your text bold accordingly. — Key_coder, Nov 14 '14 at 05:55
@DreadHeadedDeveloper I dont want to set complete text bold. I want a fixed part like in Me: Hello, only Me: should be bold. — Ruchir, Nov 14 '14 at 05:57

score 4 · Accepted Answer · answered Nov 14 '14 at 05:58

4

Try below code:

if(array.get(i).contain("Me")){
    String value = array.get(i).split(":")[0];
    String value1 = array.get(i).split(":")[1];
    String main_value = "<b>"+value +":</b> "+ value1;

    txt.setText( Html.fromHtml(main_value));
}

answered Nov 14 '14 at 05:58

duggu

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Thanx for solution...but it displaying Me: Hello – Ruchir Nov 14 '14 at 06:02
@user3519241 chech this link http://stackoverflow.com/questions/2116162/how-to-display-html-in-textview – duggu Nov 14 '14 at 06:06

score 1 · Answer 2 · edited Jun 20 '20 at 09:12

Try to use custom funcation to make section of text to be bold :

Example :

getTextWithBoldSection("Me: hello..","Me:");

public SpannableStringBuilder getTextWithBoldSection(String fulltext, String boldText){

        SpannableStringBuilder builder=new SpannableStringBuilder();

        if(boldText.length() > 0 && !boldText.trim().equals("")){
            int startingIndex = fulltext.indexOf(boldText);
            int endingIndex = startingIndex + boldText.length();
         
            if(startingIndex < 0 || endingIndex <0){
                return builder.append(fulltext);
            }
            else if(startingIndex >= 0 && endingIndex >=0){
                builder.append(fulltext);
                builder.setSpan(new StyleSpan(Typeface.BOLD), startingIndex, endingIndex, 0);
            }
        }else{
            return builder.append(fulltext);
        }

        return builder;
    }

score 1 · Answer 3 · answered Nov 14 '14 at 06:07

Try using under mentioned code:

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TextView mTV = (TextView) findViewById(R.id.tv);
    String mString = "Me: hello..";
    mTV.setText(boldText(mString,0,2));
}
private Spannable boldText(String mText, int mStart, int mEnd) {

    Spannable WordtoSpan = new SpannableString(mText);
    WordtoSpan.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), mStart, mEnd,
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return WordtoSpan;
}
}

How to make a part of text bold from arraylist in android

3 Answers3

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