Android Open Source - PhoneProfiles_Eclipse Number Picker Preference

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright (C) 2011 The CyanogenMod Project
 */*from   w w  w  . j a  va 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 sk.henrichg.phoneprofiles;

import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.NumberPicker;

/*
 * @author Danesh
 * @author nebkat
 */

public class NumberPickerPreference extends DialogPreference {
  
  private String value;
  
  private int mMin, mMax;
    
    private String mMaxExternalKey, mMinExternalKey;

    private NumberPicker mNumberPicker;

    public NumberPickerPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        TypedArray numberPickerType = context.obtainStyledAttributes(attrs,
                R.styleable.NumberPickerPreference, 0, 0);

        mMaxExternalKey = numberPickerType.getString(R.styleable.NumberPickerPreference_maxExternal);
        mMinExternalKey = numberPickerType.getString(R.styleable.NumberPickerPreference_minExternal);

        mMax = numberPickerType.getInt(R.styleable.NumberPickerPreference_max, 5);
        mMin = numberPickerType.getInt(R.styleable.NumberPickerPreference_min, 0);

        numberPickerType.recycle();
    }

    @Override
    protected View onCreateDialogView() {

        // External values
        if (mMaxExternalKey != null) {
            mMax = getSharedPreferences().getInt(mMaxExternalKey, mMax);
        }
        if (mMinExternalKey != null) {
          mMin = getSharedPreferences().getInt(mMinExternalKey, mMin);
        }

        LayoutInflater inflater =
                (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.activity_number_pref_dialog, null);

        mNumberPicker = (NumberPicker) view.findViewById(R.id.number_picker);

        // Initialize state
        mNumberPicker.setMaxValue(mMax);
        mNumberPicker.setMinValue(mMin);
        mNumberPicker.setValue(Integer.valueOf(value));
        mNumberPicker.setWrapSelectorWheel(false);

        /*
        mNumberPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
            @Override
            public void onValueChange(NumberPicker numberPicker, int valueOld, int valueNew) {

                //Toast.makeText(this, "Value was: " + Integer.toString(valueOld) + " is now: " + Integer.toString(valueNew), Toast.LENGTH_SHORT).show();
                //persistString(String.valueOf(valueNew));
              
            callChangeListener(String.valueOf(valueNew));

            }
        });
        */
        
        return view;
    }

    @Override
    protected void onDialogClosed(boolean positiveResult) {
        if (positiveResult) {
          mNumberPicker.clearFocus();

          String value = String.valueOf(mNumberPicker.getValue());
          
        if (callChangeListener(value))
        {
          //persistInt(mNumberPicker.getValue());
              persistString(value);
        }
        }
    }
    
    @Override 
    protected Object onGetDefaultValue(TypedArray ta, int index)
    {
        String defaultValue = ta.getString(index);
        return defaultValue;
    }

    @Override
    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {

        if(restoreValue)
        {
            value = getPersistedString(value);
        }
        else
        {
          value = (String)defaultValue;
            persistString(value);
        }
        
    }    

}
Java Source Code List
