Android Open Source - dbfragments Chooser

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2013 Yuriy Tkachenko//from www .ja v  a  2 s . co  m
 *
 * 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 db.fragments;

import android.content.Context;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

/**
 * The chooser control.
 */
public class Chooser extends Spinner implements Control, OnItemSelectedListener {

  private boolean changed = false;
  private boolean changedBySetText = false;

  public Chooser(Context context) {
    super(context);
    setOnItemSelectedListener(this);
  }

  public static Chooser newInstance(Context parent, String[] values) {
    Chooser choose = new Chooser(parent);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(parent,
        android.R.layout.simple_spinner_item, values);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    choose.setAdapter(adapter);
    return choose;
  }

  @Override
  public CharSequence getText() {
    return String.valueOf(getSelectedItemPosition());
  }

  @Override
  public void setText(CharSequence text) {
    int sel = 0;
    try {
      sel = Integer.parseInt(text.toString());
    } catch (NumberFormatException e) {
      sel = 0;
    }
    setSelection(sel);
    changed = false;
    changedBySetText = true;
  }

  @Override
  public boolean isChanged() {
    return changed;
  }

  @Override
  public void onItemSelected(AdapterView<?> parent, View view, int position,
      long id) {
    if (!changedBySetText) {
      changed = true;
    }
    changedBySetText = false;
  }

  @Override
  public void onNothingSelected(AdapterView<?> parent) {
    changed = false;
  }
}

Java Source Code List

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