FragmentStatePagerSupport.java revision e0ecf5974e4bd81f07e38f11648896f9301c7401 
1/*
2 * Copyright (C) 2011 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
17package com.example.android.supportv13.app;
18
19import com.example.android.supportv13.Cheeses;
20import com.example.android.supportv13.R;
21
22import android.support.v13.app.FragmentStatePagerAdapter;
23import android.support.v4.view.ViewPager;
24
25import android.os.Bundle;
26import android.app.Activity;
27import android.app.Fragment;
28import android.app.FragmentManager;
29import android.app.ListFragment;
30import android.util.Log;
31import android.view.LayoutInflater;
32import android.view.View;
33import android.view.ViewGroup;
34import android.view.View.OnClickListener;
35import android.widget.ArrayAdapter;
36import android.widget.Button;
37import android.widget.ListView;
38import android.widget.TextView;
39
40//BEGIN_INCLUDE(complete)
41public class FragmentStatePagerSupport extends Activity {
42    static final int NUM_ITEMS = 10;
43
44    MyAdapter mAdapter;
45
46    ViewPager mPager;
47
48    @Override
49    protected void onCreate(Bundle savedInstanceState) {
50        super.onCreate(savedInstanceState);
51        setContentView(R.layout.fragment_pager);
52
53        mAdapter = new MyAdapter(getFragmentManager());
54
55        mPager = (ViewPager)findViewById(R.id.pager);
56        mPager.setAdapter(mAdapter);
57
58        // Watch for button clicks.
59        Button button = (Button)findViewById(R.id.goto_first);
60        button.setOnClickListener(new OnClickListener() {
61            public void onClick(View v) {
62                mPager.setCurrentItem(0);
63            }
64        });
65        button = (Button)findViewById(R.id.goto_last);
66        button.setOnClickListener(new OnClickListener() {
67            public void onClick(View v) {
68                mPager.setCurrentItem(NUM_ITEMS-1);
69            }
70        });
71    }
72
73    public static class MyAdapter extends FragmentStatePagerAdapter {
74        public MyAdapter(FragmentManager fm) {
75            super(fm);
76        }
77
78        @Override
79        public int getCount() {
80            return NUM_ITEMS;
81        }
82
83        @Override
84        public Fragment getItem(int position) {
85            return ArrayListFragment.newInstance(position);
86        }
87    }
88
89    public static class ArrayListFragment extends ListFragment {
90        int mNum;
91
92        /**
93         * Create a new instance of CountingFragment, providing "num"
94         * as an argument.
95         */
96        static ArrayListFragment newInstance(int num) {
97            ArrayListFragment f = new ArrayListFragment();
98
99            // Supply num input as an argument.
100            Bundle args = new Bundle();
101            args.putInt("num", num);
102            f.setArguments(args);
103
104            return f;
105        }
106
107        /**
108         * When creating, retrieve this instance's number from its arguments.
109         */
110        @Override
111        public void onCreate(Bundle savedInstanceState) {
112            super.onCreate(savedInstanceState);
113            mNum = getArguments() != null ? getArguments().getInt("num") : 1;
114        }
115
116        /**
117         * The Fragment's UI is just a simple text view showing its
118         * instance number.
119         */
120        @Override
121        public View onCreateView(LayoutInflater inflater, ViewGroup container,
122                Bundle savedInstanceState) {
123            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
124            View tv = v.findViewById(R.id.text);
125            ((TextView)tv).setText("Fragment #" + mNum);
126            return v;
127        }
128
129        @Override
130        public void onActivityCreated(Bundle savedInstanceState) {
131            super.onActivityCreated(savedInstanceState);
132            setListAdapter(new ArrayAdapter<String>(getActivity(),
133                    android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
134        }
135
136        @Override
137        public void onListItemClick(ListView l, View v, int position, long id) {
138            Log.i("FragmentList", "Item clicked: " + id);
139        }
140    }
141}
142//END_INCLUDE(complete)
143