/*
* 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.StringData;
import org.javarosa.form.api.FormEntryPrompt;
import android.content.Context;
import android.text.InputType;
import android.text.method.DigitsKeyListener;
import android.text.method.PasswordTransformationMethod;
import android.util.TypedValue;
import android.widget.EditText;
/**
* Widget that restricts values to integers.
*
* @author Carl Hartung (carlhartung@gmail.com)
*/
public class StringNumberWidget extends StringWidget {
public StringNumberWidget(Context context, FormEntryPrompt prompt, boolean secret) {
super(context, prompt, secret);
mAnswer.setTextSize(TypedValue.COMPLEX_UNIT_DIP, mAnswerFontsize);
// needed to make long readonly text scroll
mAnswer.setHorizontallyScrolling(false);
if(!secret) {
mAnswer.setSingleLine(false);
}
mAnswer.setKeyListener(new DigitsKeyListener(true, true) {
/*
* (non-Javadoc)
* @see android.text.method.DigitsKeyListener#getAcceptedChars()
*/
@Override
protected char[] getAcceptedChars() {
char[] accepted = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', '-', '+', ' '
};
return accepted;
}
});
if (prompt.isReadOnly()) {
setBackgroundDrawable(null);
setFocusable(false);
setClickable(false);
}
//This might be redundant, but I assume that it's about there being a difference
//between a display value somewhere. We should double check
if (prompt.getAnswerValue() != null) {
String curAnswer = getCurrentAnswer().getValue().toString().trim();
try {
mAnswer.setText(curAnswer);
} catch (Exception NumberFormatException) {
}
}
}
/*
* (non-Javadoc)
* @see org.odk.collect.android.widgets.StringWidget#setTextInputType(android.widget.EditText)
*/
@Override
protected void setTextInputType(EditText mAnswer) {
if(secret) {
mAnswer.setInputType(InputType.TYPE_NUMBER_FLAG_SIGNED);
mAnswer.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
}
/*
* (non-Javadoc)
* @see org.odk.collect.android.widgets.StringWidget#getAnswer()
*/
@Override
public IAnswerData getAnswer() {
String s = mAnswer.getText().toString();
if (s == null || s.equals("")) {
return null;
} else {
try {
return new StringData(s);
} catch (Exception NumberFormatException) {
return null;
}
}
}
}