FragmentReuseViolation.java
/*
* Copyright 2021 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.fragment.app.strictmode;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
/** See #{@link FragmentStrictMode.Policy.Builder#detectFragmentReuse()}. */
public final class FragmentReuseViolation extends Violation {
@NonNull
private final String mPreviousWho;
FragmentReuseViolation(@NonNull Fragment fragment, @NonNull String previousWho) {
super(fragment);
this.mPreviousWho = previousWho;
}
/**
* Gets the unique ID of the previous instance of the {@link Fragment} causing the Violation.
*/
@NonNull
public String getPreviousFragmentId() {
return mPreviousWho;
}
@NonNull
@Override
public String getMessage() {
return "Attempting to reuse fragment " + mFragment + " with previous ID " + mPreviousWho;
}
}