content: /*
   * Copyright (C) 2007 The Android Open Source Project
   *
   * 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 com.lb.material_preferences_library.custom_preferences;
  
  import android.content.Context;
  import android.content.DialogInterface;
  import android.content.res.TypedArray;
  import android.os.Parcel;
  import android.os.Parcelable;
  import androidx.appcompat.app.AlertDialog.Builder;
  import android.text.TextUtils;
  import android.util.AttributeSet;
  import android.widget.ArrayAdapter;
  
  import com.lb.material_preferences_library.R;
  
  /**
   * A {@link Preference} that displays a list of entries as
   * a dialog.
   * <p>
   * This preference will store a string into the SharedPreferences. This string will be the value
   * from the {@link #setEntryValues(CharSequence[])} array.
   *
   * @attr ref android.R.styleable#ListPreference_entries
   * @attr ref android.R.styleable#ListPreference_entryValues
   */
  public class ListPreference extends DialogPreference {
      private CharSequence[] mEntries;
      private CharSequence[] mEntryValues;
      private String mValue;
      private String mSummary;
      private int mClickedDialogEntryIndex;
      private boolean mValueSet;
  
      public ListPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
          super(context, attrs, defStyleAttr, defStyleRes);
      }
  
      public ListPreference(Context context, AttributeSet attrs, int defStyleAttr) {
          super(context, attrs, defStyleAttr);
      }
  
      public ListPreference(Context context, AttributeSet attrs) {
          this(context, attrs, R.attr.dialogPreferenceStyle);
      }
  
      public ListPreference(Context context) {
          this(context, null);
      }
  
      @Override
      protected void init(final Context context, final AttributeSet attrs, final int defStyleAttr, final int defStyleRes) {
          super.init(context, attrs, defStyleAttr, defStyleRes);
          TypedArray a = context.obtainStyledAttributes(
                  attrs, R.styleable.ListPreference, defStyleAttr, defStyleRes);
          mEntries = a.getTextArray(R.styleable.ListPreference_entries);
          mEntryValues = a.getTextArray(R.styleable.ListPreference_entryValues);
          a.recycle();
  
          /* Retrieve the Preference summary attribute since it's private
           * in the Preference class.
           */
  //    a=context.obtainStyledAttributes(attrs,
  //            R.styleable.Preference,defStyleAttr,defStyleRes);
  //    mSummary=a.getString(R.styleable.Preference_summary);
  //    a.recycle();
          mSummary = super.getSummary() == null ? null : super.getSummary().toString();
      }
  
      /**
       * Sets the human-readable entries to be shown in the list. This will be
       * shown in subsequent dialogs.
       * <p>
       * Each entry must have a corresponding index in
       * {@link #setEntryValues(CharSequence[])}.
       *
       * @param entries The entries.
       * @see #setEntryValues(CharSequence[])
       */
      public void setEntries(CharSequence[] entries) {
          mEntries = entries;
      }
  
      /**
       * @param entriesResId The entries array as a resource.
       * @see #setEntries(CharSequence[])
       */
      public void setEntries(int entriesResId) {
          setEntries(getContext().getResources().getTextArray(entriesResId));
      }
  
      /**
       * The list of entries to be shown in the list in subsequent dialogs.
       *
       * @return The list as an array.
       */
      public CharSequence[] getEntries() {
          return mEntries;
      }
  
      /**
       * The array to find the value to save for a preference when an entry from
       * entries is selected. If a user clicks on the second item in entries, the
       * second item in this array will be saved to the preference.
       *
       * @param entryValues The array to be used as values to save for the preference.
       */
      public void setEntryValues(CharSequence[] entryValues) {
          mEntryValues = entryValues;
      }
  
      /**
       * @param entryValuesResId The entry values array as a resource.
       * @see #setEntryValues(CharSequence[])
       */
      public void setEntryValues(int entryValuesResId) {
          setEntryValues(getContext().getResources().getTextArray(entryValuesResId));
      }
  
      /**
       * Returns the array of values to be saved for the preference.
       *
       * @return The array of values.
       */
      public CharSequence[] getEntryValues() {
          return mEntryValues;
      }
  
      /**
       * Sets the value of the key. This should be one of the entries in
       * {@link #getEntryValues()}.
       *
       * @param value The value to set for the key.
       */
      public void setValue(String value) {
  // Always persist/notify the first time.
          final boolean changed = !TextUtils.equals(mValue, value);
          if (changed || !mValueSet) {
              mValue = value;
              mValueSet = true;
              persistString(value);
              if (changed) {
                  notifyChanged();
              }
          }
      }
  
      /**
       * Returns the summary of this ListPreference. If the summary
       * has a {@linkplain java.lang.String#format String formatting}
       * marker in it (i.e. "%s" or "%1$s"), then the current entry
       * value will be substituted in its place.
       *
       * @return the summary with appropriate string substitution
       */
      @Override
      public CharSequence getSummary() {
          final CharSequence entry = getEntry();
          if (mSummary == null) {
              return super.getSummary();
          } else {
              return String.format(mSummary, entry == null ? "" : entry);
          }
      }
  
      /**
       * Sets the summary for this Preference with a CharSequence.
       * If the summary has a
       * {@linkplain java.lang.String#format String formatting}
       * marker in it (i.e. "%s" or "%1$s"), then the current entry
       * value will be substituted in its place when it's retrieved.
       *
       * @param summary The summary for the preference.
       */
      @Override
      public void setSummary(CharSequence summary) {
          super.setSummary(summary);
          if (summary == null && mSummary != null) {
              mSummary = null;
          } else if (summary != null && !summary.equals(mSummary)) {
              mSummary = summary.toString();
          }
      }
  
      /**
       * Sets the value to the given index from the entry values.
       *
       * @param index The index of the value to set.
       */
      public void setValueIndex(int index) {
          if (mEntryValues != null) {
              setValue(mEntryValues[index].toString());
          }
      }
  
      /**
       * Returns the value of the key. This should be one of the entries in
       * {@link #getEntryValues()}.
       *
       * @return The value of the key.
       */
      public String getValue() {
          return mValue;
      }
  
      /**
       * Returns the entry corresponding to the current value.
       *
       * @return The entry corresponding to the current value, or null.
       */
      public CharSequence getEntry() {
          int index = getValueIndex();
          return index >= 0 && mEntries != null ? mEntries[index] : null;
      }
  
      /**
       * Returns the index of the given value (in the entry values array).
       *
       * @param value The value whose index should be returned.
       * @return The index of the value, or -1 if not found.
       */
      public int findIndexOfValue(String value) {
          if (value != null && mEntryValues != null)
              for (int i = mEntryValues.length - 1; i >= 0; i--)
                  if (mEntryValues[i].equals(value))
                      return i;
          return -1;
      }
  
      private int getValueIndex() {
          return findIndexOfValue(mValue);
      }
  
      @Override
      protected void onPrepareDialogBuilder(Builder builder) {
          super.onPrepareDialogBuilder(builder);
          if (mEntries == null || mEntryValues == null) {
              throw new IllegalStateException(
                      "ListPreference requires an entries array and an entryValues array.");
          }
          mClickedDialogEntryIndex = getValueIndex();
          //    final ListView listView=new ListView(getContext());
  //    listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
  //    listView.setOnItemClickListener(new OnItemClickListener()
  //    {
  //    @Override
  //    public void onItemClick(final AdapterView<?> parent,final View view,final int position,final long id)
  //      {
  //      listView.setItemChecked(position,true);
  //      if(position>=0&&getEntryValues()!=null)
  //        {
  //        String value=getEntryValues()[position].toString();
  //        if(callChangeListener(value)&&isPersistent())
  //          setValue(value);
  //        }
  //      mDialog.dismiss();
  //      }
  //    });
  //    listView.setAdapter(new ArrayAdapter<>(getContext(),R.layout.mpl__simple_list_item_single_choice,entries));
          //            builder.setView(listView);
  
          builder.setSingleChoiceItems(new ArrayAdapter<>(getContext(), R.layout.mpl__simple_list_item_single_choice, mEntries), mClickedDialogEntryIndex,
                  new DialogInterface.OnClickListener() {
                      public void onClick(DialogInterface dialog, int which) {
                          mClickedDialogEntryIndex = which;
  
                          /*
                           * Clicking on an item simulates the positive button
                           * click, and dismisses the dialog.
                           */
                          ListPreference.this.onClick(dialog, DialogInterface.BUTTON_POSITIVE);
                          dialog.dismiss();
                      }
                  });
  
          /*
           * The typical interaction for list-based dialogs is to have
           * click-on-an-item dismiss the dialog instead of the user having to
           * press 'Ok'.
           */
          builder.setPositiveButton(null, null);
      }
  
      @Override
      protected void onDialogClosed(boolean positiveResult) {
          super.onDialogClosed(positiveResult);
  
          if (positiveResult && mClickedDialogEntryIndex >= 0 && mEntryValues != null) {
              String value = mEntryValues[mClickedDialogEntryIndex].toString();
              if (callChangeListener(value)) {
                  setValue(value);
              }
          }
      }
  
      @Override
      protected Object onGetDefaultValue(TypedArray a, int index) {
          return a.getString(index);
      }
  
      @Override
      protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
          setValue(restoreValue ? getPersistedString(mValue) : (String) defaultValue);
      }
  
      @Override
      protected Parcelable onSaveInstanceState() {
          final Parcelable superState = super.onSaveInstanceState();
          if (isPersistent()) {
  // No need to save instance state since it's persistent
              return superState;
          }
  
          final SavedState myState = new SavedState(superState);
          myState.value = getValue();
          return myState;
      }
  
      @Override
      protected void onRestoreInstanceState(Parcelable state) {
          if (state == null || !state.getClass().equals(SavedState.class)) {
  // Didn't save state for us in onSaveInstanceState
              super.onRestoreInstanceState(state);
              return;
          }
  
          SavedState myState = (SavedState) state;
          super.onRestoreInstanceState(myState.getSuperState());
          setValue(myState.value);
      }
  
      private static class SavedState extends BaseSavedState {
          String value;
  
          public SavedState(Parcel source) {
              super(source);
              value = source.readString();
          }
  
          @Override
          public void writeToParcel(Parcel dest, int flags) {
              super.writeToParcel(dest, flags);
              dest.writeString(value);
          }
  
          public SavedState(Parcelable superState) {
              super(superState);
          }
  
          public static final Parcelable.Creator<SavedState> CREATOR =
                  new Parcelable.Creator<SavedState>() {
                      public SavedState createFromParcel(Parcel in) {
                          return new SavedState(in);
                      }
  
                      public SavedState[] newArray(int size) {
                          return new SavedState[size];
                      }
                  };
      }
  
  }
  