Using strings from an array, not working to element?

Question

Pretty new in java. Very simple issue here but really don't understand whats the problem...

I have an array with strings. The array elements are url images. I have a view element which is changing the images. What I need is to set the image with an element from the array.

imageSwitcher.setImageUrl(Last_images[1].toString());
                Log.d("D1",Last_images[1].toString());

In the first line if I give it for example "www.example.com/1.jpg" its working. However when I give it the array element its not working. In the log.cat its showing the right url...

In the onCreate I have : Last_images = new String[10]; and in the class values I have : String[] Last_images = null;

Coming from PHP and I'm really confused why it is not working and I really think its something easy.

There is only a method ImageSwitcher.setImageURI. What is your imageSwitcher class? — kennytm
– kennytm, Commented Jun 21, 2013 at 7:45
Even Last_images[1] will do , toString() is redundant . What is the issue ? What is the content of Last_images[1] ? Pointer, an array with 10 elements will be indexed from 0 to 9. — AllTooSir
– AllTooSir, Commented Jun 21, 2013 at 7:46
Just avoid calling toString when the Object is actually a String. — aran
– aran, Commented Jun 21, 2013 at 7:46

Daniele Milani · Accepted Answer · 2013-06-21 07:47:09Z

1

Last_images may be null: in my opionion you should do something like that:

 if (Last_images != null && Last_images[i] != null) {
     imageSwitcher.setImageUrl(Last_images[1]);
 }

answered Jun 21, 2013 at 7:47

Daniele Milani

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stinepike · Accepted Answer · 2013-06-21 15:22:02Z

1

Not clear from your question . But just some guess

If you are trying to access the first element of array luse Last_images[0]. And there is no need to use toString method ( no harm either).

If this is not the cases Then I would like to see the codes related to the assignment of the array.

edited Jun 21, 2013 at 15:22

answered Jun 21, 2013 at 7:45

stinepike

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Dimmerg · Accepted Answer · 2013-06-21 07:49:03Z

0

Try to use

imageSwitcher.setImageURI(Uri.parse(Last_images[1]));

answered Jun 21, 2013 at 7:49

Dimmerg

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ashwin153 · Accepted Answer · 2013-06-21 07:49:58Z

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According to the Android Documentation, http://developer.android.com/reference/android/widget/ImageSwitcher.html, the class ImageSwitcher has a setImageURI(Uri uri) method. To create Uri objects, simply call Uri.parse(String myString).

answered Jun 21, 2013 at 7:49

ashwin153

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