SeekBarPreference.java 文件源码

@Override
   protected View onCreateDialogView() {
// Get current value from preferences
mCurrentValue = getPersistedInt(mDefaultValue);

// Inflate layout
LayoutInflater inflater = ((PreferenceActivity) context).getLayoutInflater();
View view = inflater.inflate(R.layout.dialog_slider, null);

// Setup minimum and maximum text labels
((TextView) view.findViewById(R.id.min_value)).setText(Integer.toString(mMinValue));
((TextView) view.findViewById(R.id.max_value)).setText(Integer.toString(mMaxValue));

// Setup SeekBar
mSeekBar = (SeekBar) view.findViewById(R.id.seek_bar);
mSeekBar.setMax(mMaxValue - mMinValue);
mSeekBar.setProgress(mCurrentValue - mMinValue);
mSeekBar.setOnSeekBarChangeListener(this);

// Setup text label for current value
mValueText = (TextView) view.findViewById(R.id.current_value);
mValueText.setText(Integer.toString(mCurrentValue));

return view;
   }