FragmentPagerSupport.java revision af846a1f43fc6779d184e91ccb26e790e87bcaba 
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.FragmentPager;
26import android.support.v4.app.ListFragment;
27import android.util.Log;
28import android.view.LayoutInflater;
29import android.view.View;
30import android.view.ViewGroup;
31import android.view.View.OnClickListener;
32import android.widget.ArrayAdapter;
33import android.widget.Button;
34import android.widget.ListView;
35import android.widget.TextView;
36
37public class FragmentPagerSupport extends FragmentActivity
38        implements FragmentPager.Adapter {
39    static final int NUM_ITEMS = 10;
40
41    FragmentPager mPager;
42
43    @Override
44    protected void onCreate(Bundle savedInstanceState) {
45        super.onCreate(savedInstanceState);
46        setContentView(R.layout.fragment_pager);
47
48        mPager = (FragmentPager)findViewById(R.id.pager);
49        mPager.setAdapter(this);
50
51        // Watch for button clicks.
52        Button button = (Button)findViewById(R.id.goto_first);
53        button.setOnClickListener(new OnClickListener() {
54            public void onClick(View v) {
55                mPager.setCurrentItem(0);
56            }
57        });
58        button = (Button)findViewById(R.id.goto_last);
59        button.setOnClickListener(new OnClickListener() {
60            public void onClick(View v) {
61                mPager.setCurrentItem(NUM_ITEMS-1);
62            }
63        });
64    }
65
66    @Override
67    public int getCount() {
68        return NUM_ITEMS;
69    }
70
71    @Override
72    public Fragment getItem(int position) {
73        return ArrayListFragment.newInstance(position);
74    }
75
76    public static class ArrayListFragment extends ListFragment {
77        int mNum;
78
79        /**
80         * Create a new instance of CountingFragment, providing "num"
81         * as an argument.
82         */
83        static ArrayListFragment newInstance(int num) {
84            ArrayListFragment f = new ArrayListFragment();
85
86            // Supply num input as an argument.
87            Bundle args = new Bundle();
88            args.putInt("num", num);
89            f.setArguments(args);
90
91            return f;
92        }
93
94        /**
95         * When creating, retrieve this instance's number from its arguments.
96         */
97        @Override
98        public void onCreate(Bundle savedInstanceState) {
99            super.onCreate(savedInstanceState);
100            mNum = getArguments() != null ? getArguments().getInt("num") : 1;
101        }
102
103        /**
104         * The Fragment's UI is just a simple text view showing its
105         * instance number.
106         */
107        @Override
108        public View onCreateView(LayoutInflater inflater, ViewGroup container,
109                Bundle savedInstanceState) {
110            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
111            View tv = v.findViewById(R.id.text);
112            ((TextView)tv).setText("Fragment #" + mNum);
113            return v;
114        }
115
116        @Override
117        public void onActivityCreated(Bundle savedInstanceState) {
118            super.onActivityCreated(savedInstanceState);
119            setListAdapter(new ArrayAdapter<String>(getActivity(),
120                    android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
121        }
122
123        @Override
124        public void onListItemClick(ListView l, View v, int position, long id) {
125            Log.i("FragmentList", "Item clicked: " + id);
126        }
127    }
128}
129