FragmentPagerSupport.java revision c644c91b91b83a6b400a57b02671f4ef7b7a810b 
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.R;
20import com.example.android.supportv4.Shakespeare;
21
22import android.os.Bundle;
23import android.support.v4.app.Fragment;
24import android.support.v4.app.FragmentActivity;
25import android.support.v4.app.FragmentPager;
26import android.support.v4.app.FragmentTransaction;
27import android.support.v4.app.ListFragment;
28import android.util.Log;
29import android.view.LayoutInflater;
30import android.view.View;
31import android.view.ViewGroup;
32import android.view.View.OnClickListener;
33import android.widget.ArrayAdapter;
34import android.widget.Button;
35import android.widget.ListView;
36import android.widget.TextView;
37
38public class FragmentPagerSupport extends FragmentActivity
39        implements FragmentPager.Adapter {
40    static final int NUM_ITEMS = 10;
41
42    FragmentPager mPager;
43    int mCurPos;
44
45    @Override
46    protected void onCreate(Bundle savedInstanceState) {
47        super.onCreate(savedInstanceState);
48        setContentView(R.layout.fragment_pager);
49
50        mPager = (FragmentPager)findViewById(R.id.pager);
51        mPager.setAdapter(this);
52
53        // Watch for button clicks.
54        Button button = (Button)findViewById(R.id.new_fragment);
55        button.setOnClickListener(new OnClickListener() {
56            public void onClick(View v) {
57                mCurPos++;
58                if (mCurPos < NUM_ITEMS) {
59                    mPager.setCurrentItem(mCurPos);
60                } else {
61                    mCurPos--;
62                }
63            }
64        });
65    }
66
67    @Override
68    public int getCount() {
69        return NUM_ITEMS;
70    }
71
72    @Override
73    public Fragment getItem(int position) {
74        return ArrayListFragment.newInstance(position);
75    }
76
77    public static class ArrayListFragment extends ListFragment {
78        int mNum;
79
80        /**
81         * Create a new instance of CountingFragment, providing "num"
82         * as an argument.
83         */
84        static ArrayListFragment newInstance(int num) {
85            ArrayListFragment f = new ArrayListFragment();
86
87            // Supply num input as an argument.
88            Bundle args = new Bundle();
89            args.putInt("num", num);
90            f.setArguments(args);
91
92            return f;
93        }
94
95        /**
96         * When creating, retrieve this instance's number from its arguments.
97         */
98        @Override
99        public void onCreate(Bundle savedInstanceState) {
100            super.onCreate(savedInstanceState);
101            mNum = getArguments() != null ? getArguments().getInt("num") : 1;
102        }
103
104        /**
105         * The Fragment's UI is just a simple text view showing its
106         * instance number.
107         */
108        @Override
109        public View onCreateView(LayoutInflater inflater, ViewGroup container,
110                Bundle savedInstanceState) {
111            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
112            View tv = v.findViewById(R.id.text);
113            ((TextView)tv).setText("Fragment #" + mNum);
114            return v;
115        }
116
117        @Override
118        public void onActivityCreated(Bundle savedInstanceState) {
119            super.onActivityCreated(savedInstanceState);
120            setListAdapter(new ArrayAdapter<String>(getActivity(),
121                    android.R.layout.simple_list_item_1, Shakespeare.TITLES));
122        }
123
124        @Override
125        public void onListItemClick(ListView l, View v, int position, long id) {
126            Log.i("FragmentList", "Item clicked: " + id);
127        }
128    }
129}
130