Java tutorial
/* * Copyright 2016 Google Inc. All Rights Reserved. * * 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 com.akalizakeza.apps.ishusho.activity; import android.os.Bundle; import android.support.v4.app.FragmentManager; import android.support.v7.app.AppCompatActivity; import com.akalizakeza.apps.ishusho.R; public class CommentsActivity extends AppCompatActivity { public static final String POST_KEY_EXTRA = "post_key"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_comments); String postKey = getIntent().getStringExtra(POST_KEY_EXTRA); if (postKey == null) { finish(); } FragmentManager fm = getSupportFragmentManager(); fm.beginTransaction().add(R.id.comments_fragment, CommentsFragment.newInstance(postKey)).commit(); } }