Twidere-App-Android-Twitter.../twidere/src/main/java/org/mariotaku/twidere/preference/MultiSelectListPreference.java

103 lines
3.3 KiB
Java

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.preference;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.content.SharedPreferences;
import android.preference.DialogPreference;
import android.util.AttributeSet;
abstract class MultiSelectListPreference extends DialogPreference implements OnMultiChoiceClickListener,
OnClickListener {
private final boolean[] mValues, mDefaultValues;
private SharedPreferences mPreferences;
private final String[] mNames, mKeys;
protected MultiSelectListPreference(final Context context) {
this(context, null);
}
protected MultiSelectListPreference(final Context context, final AttributeSet attrs) {
this(context, attrs, android.R.attr.preferenceStyle);
}
protected MultiSelectListPreference(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
mNames = getNames();
mKeys = getKeys();
mDefaultValues = getDefaults();
final int length = mNames.length;
if (length != mKeys.length || length != mDefaultValues.length) throw new IllegalArgumentException();
mValues = new boolean[length];
}
@Override
public void onClick(final DialogInterface dialog, final int which) {
if (mPreferences == null) return;
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
final SharedPreferences.Editor editor = mPreferences.edit();
final int length = mKeys.length;
for (int i = 0; i < length; i++) {
editor.putBoolean(mKeys[i], mValues[i]);
}
editor.apply();
break;
}
}
@Override
public void onClick(final DialogInterface dialog, final int which, final boolean isChecked) {
mValues[which] = isChecked;
}
@Override
public void onPrepareDialogBuilder(final AlertDialog.Builder builder) {
super.onPrepareDialogBuilder(builder);
mPreferences = getDefaultSharedPreferences();
if (mPreferences == null) return;
final int length = mKeys.length;
for (int i = 0; i < length; i++) {
mValues[i] = mPreferences.getBoolean(mKeys[i], mDefaultValues[i]);
}
builder.setPositiveButton(android.R.string.ok, this);
builder.setNegativeButton(android.R.string.cancel, null);
builder.setMultiChoiceItems(mNames, mValues, this);
}
protected abstract boolean[] getDefaults();
protected SharedPreferences getDefaultSharedPreferences() {
return getSharedPreferences();
}
protected abstract String[] getKeys();
protected abstract String[] getNames();
}