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copied!<p>You have to make custom autocompleteview by extending class.. and code mentioned in your question to be changed.</p> <pre><code>public class CustomAutoComplete extends AutoCompleteTextView { private String previous = ""; private String seperator = "@"; boolean isState = false; public CustomAutoComplete(final Context context, final AttributeSet attrs, final int defStyle) { super(context, attrs, defStyle); this.setThreshold(1); } public CustomAutoComplete(final Context context, final AttributeSet attrs) { super(context, attrs); this.setThreshold(1); } public CustomAutoComplete(final Context context) { super(context); this.setThreshold(1); } /** * This method filters out the existing text till the separator and launched * the filtering process again */ @Override protected void performFiltering(final CharSequence text, final int keyCode) { String filterText = text.toString().trim(); String lastchar = filterText.substring(filterText.length() - 1, filterText.length()); if (filterText.length() == 1) { if (lastchar.equals(seperator)) { isState = true; } else { isState = false; } } previous = filterText.substring(0, filterText.lastIndexOf(getSeperator()) + 1); filterText = filterText.substring(filterText .lastIndexOf(getSeperator()) + 1); if ((lastchar.equals(seperator)) || isState) { super.performFiltering(filterText, keyCode); isState = true; } } /** * After a selection, capture the new value and append to the existing text */ @Override protected void replaceText(final CharSequence text) { isState = false; super.replaceText(previous + text);// + getSeperator()); } public String getSeperator() { return seperator; } public void setSeperator(final String seperator) { this.seperator = seperator; } } </code></pre> <p>Hope this will help you...</p>

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