/***
Copyright (c) 2015 CommonsWare, LLC
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.
Covered in detail in the book _The Busy Coder's Guide to Android Development_
https://commonsware.com/Android
*/
package com.commonsware.android.recyclerview.actionmodelist2;
import android.os.Bundle;
import android.util.SparseBooleanArray;
public class MultiChoiceMode implements ChoiceMode {
private static final String STATE_CHECK_STATES="checkStates";
private ParcelableSparseBooleanArray checkStates=new ParcelableSparseBooleanArray();
@Override
public void setChecked(int position, boolean isChecked) {
if (isChecked) {
checkStates.put(position, isChecked);
}
else {
checkStates.delete(position);
}
}
@Override
public boolean isChecked(int position) {
return(checkStates.get(position, false));
}
@Override
public void onSaveInstanceState(Bundle state) {
state.putParcelable(STATE_CHECK_STATES, checkStates);
}
@Override
public void onRestoreInstanceState(Bundle state) {
checkStates=state.getParcelable(STATE_CHECK_STATES);
}
@Override
public int getCheckedCount() {
return(checkStates.size());
}
@Override
public void clearChecks() {
checkStates.clear();
}
@Override
public void visitChecks(Visitor v) {
SparseBooleanArray copy=checkStates.clone();
for (int i=0;i<copy.size();i++) {
v.onCheckedPosition(copy.keyAt(i));
}
}
}