HelperReference.java
/*
* Copyright (C) 2019 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 androidx.constraintlayout.core.state;
import androidx.constraintlayout.core.state.helpers.Facade;
import androidx.constraintlayout.core.widgets.ConstraintWidget;
import androidx.constraintlayout.core.widgets.HelperWidget;
import java.util.ArrayList;
import java.util.Collections;
public class HelperReference extends ConstraintReference implements Facade {
protected final State mState;
final State.Helper mType;
protected ArrayList<Object> mReferences = new ArrayList<>();
private HelperWidget mHelperWidget;
public HelperReference(State state, State.Helper type) {
super(state);
mState = state;
mType = type;
}
public State.Helper getType() {
return mType;
}
/**
* @TODO: add description
*/
public HelperReference add(Object... objects) {
Collections.addAll(mReferences, objects);
return this;
}
public void setHelperWidget(HelperWidget helperWidget) {
mHelperWidget = helperWidget;
}
public HelperWidget getHelperWidget() {
return mHelperWidget;
}
@Override
public ConstraintWidget getConstraintWidget() {
return getHelperWidget();
}
/**
* @TODO: add description
*/
public void apply() {
// nothing
}
}