FragmentPagerSupport.java revision 02e82399ee8e5efe5c836314896e04699a9c8e93 
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.supportv4.app;
18
19import com.example.android.supportv4.Cheeses;
20import com.example.android.supportv4.R;
21
22import android.os.Bundle;
23import android.support.v4.app.Fragment;
24import android.support.v4.app.FragmentActivity;
25import android.support.v4.app.FragmentManager;
26import android.support.v4.app.FragmentPagerAdapter;
27import android.support.v4.app.ListFragment;
28import android.support.v4.view.ViewPager;
29import android.util.Log;
30import android.view.LayoutInflater;
31import android.view.View;
32import android.view.ViewGroup;
33import android.view.View.OnClickListener;
34import android.widget.ArrayAdapter;
35import android.widget.Button;
36import android.widget.ListView;
37import android.widget.TextView;
38
39public class FragmentPagerSupport extends FragmentActivity {
40    static final int NUM_ITEMS = 10;
41
42    MyAdapter mAdapter;
43
44    ViewPager mPager;
45
46    @Override
47    protected void onCreate(Bundle savedInstanceState) {
48        super.onCreate(savedInstanceState);
49        setContentView(R.layout.fragment_pager);
50
51        mAdapter = new MyAdapter(getSupportFragmentManager());
52
53        mPager = (ViewPager)findViewById(R.id.pager);
54        mPager.setAdapter(mAdapter);
55
56        // Watch for button clicks.
57        Button button = (Button)findViewById(R.id.goto_first);
58        button.setOnClickListener(new OnClickListener() {
59            public void onClick(View v) {
60                mPager.setCurrentItem(0);
61            }
62        });
63        button = (Button)findViewById(R.id.goto_last);
64        button.setOnClickListener(new OnClickListener() {
65            public void onClick(View v) {
66                mPager.setCurrentItem(NUM_ITEMS-1);
67            }
68        });
69    }
70
71    public static class MyAdapter extends FragmentPagerAdapter {
72        public MyAdapter(FragmentManager fm) {
73            super(fm);
74        }
75
76        @Override
77        public int getCount() {
78            return NUM_ITEMS;
79        }
80
81        @Override
82        public Fragment getItem(int position) {
83            return ArrayListFragment.newInstance(position);
84        }
85    }
86
87    public static class ArrayListFragment extends ListFragment {
88        int mNum;
89
90        /**
91         * Create a new instance of CountingFragment, providing "num"
92         * as an argument.
93         */
94        static ArrayListFragment newInstance(int num) {
95            ArrayListFragment f = new ArrayListFragment();
96
97            // Supply num input as an argument.
98            Bundle args = new Bundle();
99            args.putInt("num", num);
100            f.setArguments(args);
101
102            return f;
103        }
104
105        /**
106         * When creating, retrieve this instance's number from its arguments.
107         */
108        @Override
109        public void onCreate(Bundle savedInstanceState) {
110            super.onCreate(savedInstanceState);
111            mNum = getArguments() != null ? getArguments().getInt("num") : 1;
112        }
113
114        /**
115         * The Fragment's UI is just a simple text view showing its
116         * instance number.
117         */
118        @Override
119        public View onCreateView(LayoutInflater inflater, ViewGroup container,
120                Bundle savedInstanceState) {
121            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
122            View tv = v.findViewById(R.id.text);
123            ((TextView)tv).setText("Fragment #" + mNum);
124            return v;
125        }
126
127        @Override
128        public void onActivityCreated(Bundle savedInstanceState) {
129            super.onActivityCreated(savedInstanceState);
130            setListAdapter(new ArrayAdapter<String>(getActivity(),
131                    android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
132        }
133
134        @Override
135        public void onListItemClick(ListView l, View v, int position, long id) {
136            Log.i("FragmentList", "Item clicked: " + id);
137        }
138    }
139}
140