1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 package android.fragment.cts; 19 20 import android.app.Fragment; 21 import android.app.FragmentManager; 22 import android.os.Bundle; 23 import android.view.LayoutInflater; 24 import android.view.View; 25 import android.view.ViewGroup; 26 import android.widget.TextView; 27 28 import androidx.annotation.Nullable; 29 import androidx.test.filters.MediumTest; 30 import androidx.test.rule.ActivityTestRule; 31 import androidx.test.runner.AndroidJUnit4; 32 33 import org.junit.Rule; 34 import org.junit.Test; 35 import org.junit.runner.RunWith; 36 37 @RunWith(AndroidJUnit4.class) 38 @MediumTest 39 public class NestedInflatedFragmentTest { 40 private static final String TAG = "NestedInflatedFragmentTest"; 41 42 @Rule 43 public ActivityTestRule<FragmentTestActivity> mActivityRule = 44 new ActivityTestRule<>(FragmentTestActivity.class); 45 46 @Test inflatedChildFragment()47 public void inflatedChildFragment() throws Throwable { 48 mActivityRule.runOnUiThread(new Runnable() { 49 @Override 50 public void run() { 51 final FragmentTestActivity activity = mActivityRule.getActivity(); 52 final FragmentManager fm = activity.getFragmentManager(); 53 54 ParentFragment parentFragment = new ParentFragment(); 55 fm.beginTransaction().add(android.R.id.content, parentFragment).commitNow(); 56 57 fm.beginTransaction().replace(android.R.id.content, new SimpleFragment()) 58 .addToBackStack(null).commit(); 59 fm.executePendingTransactions(); 60 61 fm.popBackStackImmediate(); 62 } 63 }); 64 } 65 66 public static class ParentFragment extends Fragment { 67 @Nullable 68 @Override onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)69 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 70 @Nullable Bundle savedInstanceState) { 71 return inflater.inflate(R.layout.nested_inflated_fragment_parent, container, false); 72 } 73 } 74 75 public static class InflatedChildFragment extends Fragment { 76 @Nullable 77 @Override onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)78 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 79 @Nullable Bundle savedInstanceState) { 80 return inflater.inflate(R.layout.nested_inflated_fragment_child, container, false); 81 } 82 } 83 84 public static class SimpleFragment extends Fragment { 85 @Nullable 86 @Override onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)87 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 88 @Nullable Bundle savedInstanceState) { 89 TextView textView = new TextView(inflater.getContext()); 90 textView.setText("Simple fragment"); 91 return textView; 92 } 93 } 94 } 95