how to use getlinecount() in textview android

Question

i want to know how many line in my text view. i already set mytextview text, then i want to get how many line it take in mytextview.

i use mytextview.getLineCount() but it didn't work. it always return 0.

can someone helpme.

check this http://stackoverflow.com/questions/3528790/textview-getlinecount-always-0-in-android — Ram kiran Pachigolla, Jul 13 '12 at 09:25
Possible duplicate of [textview.getLineCount always 0 in android](http://stackoverflow.com/questions/3528790/textview-getlinecount-always-0-in-android) — cammando, Feb 06 '17 at 18:25

score 31 · Answer 1 · answered Oct 10 '12 at 13:34

31

You need to post method for fetching the lines counts. Here is the sample code

imageCaption.setText("Text Here");
imageCaption.post(new Runnable() {

    @Override
    public void run() {

        int lineCount    = imageCaption.getLineCount();

        Log.v("LINE_NUMBERS", lineCount+"");
    }
});

answered Oct 10 '12 at 13:34

Ayaz Alavi

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2

getLineCount will still return 0 in this scenario, at least when it's inside of a ListView. – May 12 '14 at 15:55

score 2 · Answer 2 · answered Sep 18 '13 at 11:56

you can check the TextView parameters inside onCreateOptionsMenu()

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    TextView tv1 = (TextView)findViewById(R.id.textView);
    Rect rect = new Rect();
    int c = tv1.getLineCount();
    tv1.getLineBounds(0, rect);
    tv1.getLineBounds(1, rect);
    return true;
}

score 1 · Answer 3 · answered Jul 13 '12 at 09:35

1

public int getLineCount ()

Since: API Level 1

Return the number of lines of text, or returns 0 if the internal Layout has not been built.

answered Jul 13 '12 at 09:35

AAnkit

27,299
12
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score 1 · Answer 4 · edited May 23 '17 at 11:53

1

Please check this link.

Android Edittext: Get LineCount in an Activity's onCreate()

tv.getLineCount(), will always retirn 0, if internal layout is not created yet.

edited May 23 '17 at 11:53

Community

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1

answered Jul 13 '12 at 09:37

Kamal

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galhe2 · Answer 5 · 2015-08-26T20:31:06.620

1

The Following will provide the lines count of the textview at the same place you set tv.setText().

int maxTextViewWidth="ENTER MAX WIDTH HERE";

tv.setText("hello\nhow are you?");

int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(maxTextViewWidth, View.MeasureSpec.AT_MOST);

int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);

tv.measure(widthMeasureSpec, heightMeasureSpec);

int lineCount=tv.getLineCount();

edited Aug 26 '15 at 20:31

answered Aug 26 '15 at 20:07

galhe2

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Please [edit] with more information. I know you've seen others, but code-only and "try this" answers are [discouraged](http://meta.stackexchange.com/questions/196187), because they contain no searchable content, and don't explain why someone should "try this". We make an effort here to be a resource for knowledge. – Mogsdad Aug 26 '15 at 20:17

score -9 · Accepted Answer · answered Jul 17 '12 at 09:00

-9

thanks for all. i solved it already. i use thread to get the linecount just like this

@Override
public void run() {
    // TODO Auto-generated method stub
    while(textView.getLineCount() == 0){

    }
    countLine = textView.getLineCount(); 

}

hope this will help if you have same problem. best regard.

answered Jul 17 '12 at 09:00

Alfa

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This code is dangerous if line count "IS" 0. The thread will loop forever. – jclova Jan 16 '13 at 03:20
1

this will do the trick for above problem--> replace `while loop` with `while(textView.getLineCount() == 0 && ! textView.getText().toString().isEmpty());` – mrsus Jun 20 '13 at 08:16

how to use getlinecount() in textview android

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