Android cannot find string if its null

Question

I want to send Emails using android intent. Every thing is working well except when choosing email app to send email with, in the send to field getting null value, although I check for null values but seems I cannot detect when a string is null. Can anybody help me solve this.

if (emailAddress[0]!=null && !emailAddress[0].isEmpty()) {
                Intent intent = new Intent(Intent.ACTION_SEND);
                intent.setType("text/plain");
                intent.putExtra(Intent.EXTRA_EMAIL, emailAddress);
                intent.putExtra(Intent.EXTRA_SUBJECT,
                        getResources().getString(R.string.email_sub));
                // intent.putExtra(Intent.EXTRA_TEXT, "I'm email body.");

                startActivity(Intent.createChooser(intent, "Send Email"));

I don't think the !emailAddress[0].isEmpty() is necessary... I could be wrong though... — TronicZomB
– TronicZomB, Commented Mar 22, 2013 at 12:45
use this .. public static boolean isNotNullNotEmptyNotWhiteSpaceOnlyByJava( final String string) { return string != null && !string.isEmpty() && !string.trim().isEmpty(); } — itsrajesh4uguys
– itsrajesh4uguys, Commented Mar 22, 2013 at 12:46

steevoo · Accepted Answer · 2013-03-22 12:47:29Z

2

try to use this syntax its detect null and empty string

if(!TextUtils.isEmpty(emailAddress[0]))

answered Mar 22, 2013 at 12:47

steevoo

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Comments

Siddharth · Accepted Answer · 2013-05-22 18:34:11Z

2

Check the String with equals() or equalsingorecase();

String[]  emailAddress = new String[10]; 

          emailAddress[0]="asdfasdfasdfasdf";

          if (emailAddress[0]!=null && !emailAddress[0].isEmpty())
          {
              System.err.println("asddddddd  " +emailAddress[0] );
          }

edited May 22, 2013 at 18:34

Siddharth

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answered Mar 22, 2013 at 12:45

itsrajesh4uguys

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1 Comment

itsrajesh4uguys Over a year ago

stackoverflow.com/questions/2920525/… have a look at this

amukhachov · Accepted Answer · 2013-03-22 12:48:13Z

0

You can use TextUtils.isEmpty(CharSequence str) method to detect if String is empty or null

answered Mar 22, 2013 at 12:48

amukhachov

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Comments

Bhargav Panchal · Accepted Answer · 2013-03-22 12:55:54Z

0

TextUtils.isEmpty(charSequence char) is used for null String if it don't work then check if(emailAddress != null) because emailAddress[0] position value is null then your array is also null.

answered Mar 22, 2013 at 12:55

Bhargav Panchal

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Ajay · Accepted Answer · 2013-03-22 12:57:00Z

0

it might help you..

you can use any from below 2

if (emailAddress[0].toString().equals(""))

or

if (emailAddress[0].toString().length() > 0)

answered Mar 22, 2013 at 12:57

Ajay

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1 Comment

Darko Petkovski Over a year ago

.toString() was the part that was making all the problems.. thanks

akaya · Accepted Answer · 2013-03-22 13:06:08Z

0

The string may not be null. AFAIK Intent.EXTRA_EMAIL takes String array as second argument.

Try this.

String[] addressArray = {"[email protected]", "[email protected]"};

//some lines...

intent.putExtra(Intent.EXTRA_EMAIL, addressArray);

answered Mar 22, 2013 at 13:06

akaya

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2 Comments

jprofitt Over a year ago

The OP is passing a String[] as the second parameter.

akaya Over a year ago

@jprofit My bad. I guess I expected to see emailAddresses or emailAdressArray

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