/*
* Copyright (C) 2009 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.odk.collect.android.widgets;
import org.javarosa.core.model.data.IAnswerData;
import org.javarosa.core.model.data.IntegerData;
import org.javarosa.form.api.FormEntryPrompt;
import android.content.Context;
import android.text.InputFilter;
import android.text.InputType;
import android.text.method.DigitsKeyListener;
import android.util.TypedValue;
/**
* Widget that restricts values to integers.
*
* @author Carl Hartung (carlhartung@gmail.com)
*/
public class IntegerWidget extends StringWidget {
public IntegerWidget(Context context, FormEntryPrompt prompt) {
super(context, prompt);
mAnswer.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mAnswerFontsize);
mAnswer.setInputType(InputType.TYPE_NUMBER_FLAG_SIGNED);
// needed to make long readonly text scroll
mAnswer.setHorizontallyScrolling(false);
mAnswer.setSingleLine(false);
// only allows numbers and no periods
mAnswer.setKeyListener(new DigitsKeyListener(true, false));
// ints can only hold 2,147,483,648. we allow 999,999,999
InputFilter[] fa = new InputFilter[1];
fa[0] = new InputFilter.LengthFilter(9);
mAnswer.setFilters(fa);
if (prompt.isReadOnly()) {
setBackgroundDrawable(null);
setFocusable(false);
setClickable(false);
}
Integer i = null;
if (prompt.getAnswerValue() != null)
i = (Integer) prompt.getAnswerValue().getValue();
if (i != null) {
mAnswer.setText(i.toString());
}
}
@Override
public IAnswerData getAnswer() {
String s = mAnswer.getText().toString();
if (s == null || s.equals("")) {
return null;
} else {
try {
return new IntegerData(Integer.parseInt(s));
} catch (Exception NumberFormatException) {
return null;
}
}
}
}