Question

I have some objects with a Spanned attribute. These are filled with HTML code including images.
On a button click I display the Spanned content in a TextView.
SOMETIMES (and I cannot reproduce this) I get this exception:

11-07 23:26:16.707: E/AndroidRuntime(23715): java.lang.NullPointerException
11-07 23:26:16.707: E/AndroidRuntime(23715): at android.text.SpannableStringBuilder.length(SpannableStringBuilder.java:126)
11-07 23:26:16.707: E/AndroidRuntime(23715): at android.widget.TextView.setText(TextView.java:2631)
11-07 23:26:16.707: E/AndroidRuntime(23715): at android.widget.TextView.setText(TextView.java:2598)
11-07 23:26:16.707: E/AndroidRuntime(23715): at android.widget.TextView.setText(TextView.java:2573)
11-07 23:26:16.707: E/AndroidRuntime(23715): at [...]

In the following second line, the exception is thrown (so the Spanned isnt null!):

if(hasSpanned){
        tv.setText(ans.getTxtS());  
}

Can anybody help me?

Answer 1

Either tv is null or ans is null. You can write a little test to figure out which one it is by inserting the following code before your if statment:

if(tv == null){
   Log.e("MyError", "Tv was null");
}

if(ans == null){
  Log.e("myError", "ans was null");
}

When you figure our which one it is, go through your code and check to make sure you’ve initialized them.