Preference activity seekbar - seekbar

Question

I have created a custom android seek bar from lukehorvat tutorial
and added to my preference xml file as below
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res-auto" >
<PreferenceCategory
android:title="Color RGB channels"
android:order="100">
<com.heroku.android.SeekBarDialogPreference
android:defaultValue="20"
android:id="#+id/redchannel"
android:key="redchannel"
android:dialogMessage="Please select red channel:"
android:max="50"
android:title="Red channel"
custom:progressTextSuffix="%"
custom:min="1" />
<com.heroku.android.SeekBarDialogPreference
android:defaultValue="20"
android:dialogMessage="Please select green channel:"
android:max="50"
android:title="Select green channel"
custom:progressTextSuffix="%"
custom:min="1" />
<com.heroku.android.SeekBarDialogPreference
android:defaultValue="20"
android:dialogMessage="Please select blue channel:"
android:max="50"
android:title="Select blue channel"
custom:progressTextSuffix="%"
custom:min="1" />
</PreferenceCategory>
</PreferenceScreen>
And I have added to my preference activity these three seekbars as below
package com.heroku.android;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.view.View;
import android.widget.SeekBar;
public class Preferences extends PreferenceActivity
implements SharedPreferences.OnSharedPreferenceChangeListener {
#Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(com.yuldashev.android.R.xml.preferences);
getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(
this);
}
#Override
protected void onResume() {
super.onResume();
}
#Override
protected void onDestroy() {
getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(
this);
super.onDestroy();
}
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
String key) {
}
}
The problem is all of them refers to the same seekbardialog custom class and I cannot get the values for these three seekbars seperately. I have tried to seperate them by entitling #+id in xml file but it does not works for me by findviewbyID because the custom SeekBardialogPreference does not support such an option. For example if you adding and single SeekBar by id you do
SeekBar seek1=(SeekBar)findviewByID(resource)
and you get the progress value from seek1 object.
Is there any suggestion how to do the same with custom seekbardialog below
package com.heroku.android;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Parcel;
import android.os.Parcelable;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
/**
* A {#link DialogPreference} that provides a user with the means to select an integer from a {#link SeekBar}, and persist it.
*
* #author lukehorvat
*
*/
public class SeekBarDialogPreference extends DialogPreference
{
private static final int DEFAULT_MIN_PROGRESS = 0;
private static final int DEFAULT_MAX_PROGRESS = 100;
private static final int DEFAULT_PROGRESS = 0;
private int mMinProgress;
private int mMaxProgress;
private int mProgress;
private CharSequence mProgressTextSuffix;
private TextView mProgressText;
private SeekBar mSeekBar;
public SeekBarDialogPreference(Context context)
{
this(context, null);
}
public SeekBarDialogPreference(Context context, AttributeSet attrs)
{
super(context, attrs);
// get attributes specified in XML
TypedArray a = context.getTheme().obtainStyledAttributes(attrs, com.yuldashev.android.R.styleable.SeekBarDialogPreference, 0, 0);
try
{
setMinProgress(a.getInteger(com.yuldashev.android.R.styleable.SeekBarDialogPreference_min, DEFAULT_MIN_PROGRESS));
setMaxProgress(a.getInteger(com.yuldashev.android.R.styleable.SeekBarDialogPreference_android_max, DEFAULT_MAX_PROGRESS));
setProgressTextSuffix(a.getString(com.yuldashev.android.R.styleable.SeekBarDialogPreference_progressTextSuffix));
}
finally
{
a.recycle();
}
// set layout
setDialogLayoutResource(com.yuldashev.android.R.layout.preference_seek_bar_dialog);
setPositiveButtonText(android.R.string.ok);
setNegativeButtonText(android.R.string.cancel);
setDialogIcon(null);
}
#Override
protected void onSetInitialValue(boolean restore, Object defaultValue)
{
setProgress(restore ? getPersistedInt(DEFAULT_PROGRESS) : (Integer) defaultValue);
}
#Override
protected Object onGetDefaultValue(TypedArray a, int index)
{
return a.getInt(index, DEFAULT_PROGRESS);
}
#Override
protected void onBindDialogView(View view)
{
super.onBindDialogView(view);
TextView dialogMessageText = (TextView) view.findViewById(com.yuldashev.android.R.id.text_dialog_message);
dialogMessageText.setText(getDialogMessage());
mProgressText = (TextView) view.findViewById(com.yuldashev.android.R.id.text_progress);
mSeekBar = (SeekBar) view.findViewById(com.yuldashev.android.R.id.seek_bar);
mSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener()
{
#Override
public void onStopTrackingTouch(SeekBar seekBar)
{
}
#Override
public void onStartTrackingTouch(SeekBar seekBar)
{
}
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{
// update text that displays the current SeekBar progress value
// note: this does not persist the progress value. that is only ever done in setProgress()
String progressStr = String.valueOf(progress + mMinProgress);
mProgressText.setText(mProgressTextSuffix == null ? progressStr : progressStr.concat(mProgressTextSuffix.toString()));
}
});
mSeekBar.setMax(mMaxProgress - mMinProgress);
mSeekBar.setProgress(mProgress - mMinProgress);
}
public int getMinProgress()
{
return mMinProgress;
}
public void setMinProgress(int minProgress)
{
mMinProgress = minProgress;
setProgress(Math.max(mProgress, mMinProgress));
}
public int getMaxProgress()
{
return mMaxProgress;
}
public void setMaxProgress(int maxProgress)
{
mMaxProgress = maxProgress;
setProgress(Math.min(mProgress, mMaxProgress));
}
public int getProgress()
{
return mProgress;
}
public void setProgress(int progress)
{
progress = Math.max(Math.min(progress, mMaxProgress), mMinProgress);
if (progress != mProgress)
{
mProgress = progress;
persistInt(progress);
notifyChanged();
}
}
public CharSequence getProgressTextSuffix()
{
return mProgressTextSuffix;
}
public void setProgressTextSuffix(CharSequence progressTextSuffix)
{
mProgressTextSuffix = progressTextSuffix;
}
#Override
protected void onDialogClosed(boolean positiveResult)
{
super.onDialogClosed(positiveResult);
// when the user selects "OK", persist the new value
if (positiveResult)
{
int seekBarProgress = mSeekBar.getProgress() + mMinProgress;
if (callChangeListener(seekBarProgress))
{
setProgress(seekBarProgress);
}
}
}
#Override
protected Parcelable onSaveInstanceState()
{
// save the instance state so that it will survive screen orientation changes and other events that may temporarily destroy it
final Parcelable superState = super.onSaveInstanceState();
// set the state's value with the class member that holds current setting value
final SavedState myState = new SavedState(superState);
myState.minProgress = getMinProgress();
myState.maxProgress = getMaxProgress();
myState.progress = getProgress();
return myState;
}
#Override
protected void onRestoreInstanceState(Parcelable state)
{
// check whether we saved the state in onSaveInstanceState()
if (state == null || !state.getClass().equals(SavedState.class))
{
// didn't save the state, so call superclass
super.onRestoreInstanceState(state);
return;
}
// restore the state
SavedState myState = (SavedState) state;
setMinProgress(myState.minProgress);
setMaxProgress(myState.maxProgress);
setProgress(myState.progress);
super.onRestoreInstanceState(myState.getSuperState());
}
private static class SavedState extends BaseSavedState
{
int minProgress;
int maxProgress;
int progress;
public SavedState(Parcelable superState)
{
super(superState);
}
public SavedState(Parcel source)
{
super(source);
minProgress = source.readInt();
maxProgress = source.readInt();
progress = source.readInt();
}
#Override
public void writeToParcel(Parcel dest, int flags)
{
super.writeToParcel(dest, flags);
dest.writeInt(minProgress);
dest.writeInt(maxProgress);
dest.writeInt(progress);
}
#SuppressWarnings("unused")
public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>()
{
#Override
public SavedState createFromParcel(Parcel in)
{
return new SavedState(in);
}
#Override
public SavedState[] newArray(int size)
{
return new SavedState[size];
}
};
}
}
Thank you all!