Java – indexoutofboundexception : setSpan (2. .. 2) Length exceeded by 1

I have a MultiAutoCompleteTextView custom control where I create a piece of paper text when the user presses the spacebar.

When the text box is empty, I don’t want the user to enter a space in the first place, so I put an inputFilter to prevent the user from entering a space in the first place.

The filter code is as follows:

private void RestrictUselessSpaces(){
    InputFilter filter = new InputFilter() { 

public CharSequence filter(CharSequence source, int start, int end, 
Spanned dest, int dstart, int dend) { 

for (int i = start; i < end; i++) { 
                if (Character.isWhitespace(source.charAt(i))) { 

if(!getText().toString().trim().equals(""))
                    {
                        return " "; 
                    }
                    else
                    {
                        return "";
                    }
                } 
        } 
        return null; 
        } 
};  

setFilters(new InputFilter[]{filter});
}

Somehow, when I comment on the RestrictUselessSpaces function. It works fine. But when this function runs. Compared to me trying to enter spaces after characters. It gives me an indexoutofboundexception error. This is the code I encountered the error with.

public void setChips(String s){

if(s.contains(" ") && !s.trim().equals("")) // check space in string
    {
        this.chips = s.trim().split(" ");

SpannableStringBuilder ssb = new SpannableStringBuilder(getText());
         split string wich comma
        int x =0;
         loop will generate ImageSpan for every country name separated by comma
        for(String c : chips){
             inflate chips_edittext layout 
            LayoutInflater lf = (LayoutInflater) getContext().getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
            TextView textView = (TextView) lf.inflate(R.layout.chips_edittext, null);
            textView.setText(c);  set text

setFlags(textView, c);  set flag image
             capture bitmapt of genreated textview
            int spec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
            textView.measure(spec, spec);
            textView.layout(0, 0, textView.getMeasuredWidth(), textView.getMeasuredHeight());
            Bitmap b = Bitmap.createBitmap(textView.getWidth(), textView.getHeight(),Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(b);
            canvas.translate(-textView.getScrollX(), -textView.getScrollY());
            textView.draw(canvas);
            textView.setDrawingCacheEnabled(true);
            Bitmap cacheBmp = textView.getDrawingCache();
            Bitmap viewBmp = cacheBmp.copy(Bitmap.Config.ARGB_8888, true);
            textView.destroyDrawingCache();   destory drawable
             create bitmap drawable for imagespan
            BitmapDrawable bmpDrawable = new BitmapDrawable(viewBmp);
            bmpDrawable.setBounds(0, 0,bmpDrawable.getIntrinsicWidth(),bmpDrawable.getIntrinsicHeight());
             create and set imagespan 
            ssb.setSpan(new ImageSpan(bmpDrawable),x ,x + c.length() , Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);    
            x = x+ c.length() +1;
        }

 set chips span 
        setText(ssb);

 move cursor to last 
        setSelection(s.length());
    }

}

The ssb.setSpan line is causing the problem, but when I debug the code. The debugger ran this line without giving me any exceptions. An error occurred after executing this function, which made it harder for me to determine what was really causing the problem.

Here is my log:

08-10 20:04:19.253: E/AndroidRuntime(18461): FATAL EXCEPTION: main
08-10 20:04:19.253: E/AndroidRuntime(18461): Process: com.example.twitter, PID: 18461
08-10 20:04:19.253: E/AndroidRuntime(18461): java.lang.IndexOutOfBoundsException: setSpan (2 ... 2) ends beyond length 1
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.checkRange(SpannableStringBuilder.java:1016)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:592)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:588)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.Selection.setSelection(Selection.java:76)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.Selection.setSelection(Selection.java:87)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.widget.EditText.setSelection(EditText.java:94)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.example.libraries.ChipsMultiAutoCompleteTextview.setChips(ChipsMultiAutoCompleteTextview.java:281)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.example.libraries.ChipsMultiAutoCompleteTextview$1.onTextChanged(ChipsMultiAutoCompleteTextview.java:192)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.widget.TextView.sendOnTextChanged(TextView.java:7429)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.widget.TextView.handleTextChanged(TextView.java:7488)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:9203)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:962)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:496)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:435)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:30)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:675)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:197)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.android.internal.widget.EditableInputConnection.commitText(EditableInputConnection.java:183)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:279)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:77)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.os.Handler.dispatchMessage(Handler.java:102)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.os.Looper.loop(Looper.java:212)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at android.app.ActivityThread.main(ActivityThread.java:5151)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at java.lang.reflect.Method.invokeNative(Native Method)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at java.lang.reflect.Method.invoke(Method.java:515)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
08-10 20:04:19.253: E/AndroidRuntime(18461):    at dalvik.system.NativeStart.main(Native Method)

Try using this

setSelection(s.length() - 1);