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/*
* Copyright (C) 2015 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 android.app;
import android.annotation.IdRes;
import android.annotation.Nullable;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
/**
* Callbacks to a {@link Fragment}'s container.
*/
public abstract class FragmentContainer {
/**
* Return the view with the given resource ID. May return {@code null} if the
* view is not a child of this container.
*/
@Nullable
public abstract <T extends View> T onFindViewById(@IdRes int id);
/**
* Return {@code true} if the container holds any view.
*/
public abstract boolean onHasView();
/**
* Creates an instance of the specified fragment, can be overridden to construct fragments
* with dependencies, or change the fragment being constructed. By default just calls
* {@link Fragment#instantiate(Context, String, Bundle)}.
*
* @hide
*/
public Fragment instantiate(Context context, String className, Bundle arguments) {
return Fragment.instantiate(context, className, arguments);
}
}