FragmentReceiveResultSupport.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;
20
21import android.support.v4.app.Fragment;
22import android.support.v4.app.FragmentActivity;
23import android.support.v4.app.FragmentTransaction;
24
25import android.content.Intent;
26import android.os.Bundle;
27import android.text.Editable;
28import android.view.LayoutInflater;
29import android.view.View;
30import android.view.View.OnClickListener;
31import android.view.ViewGroup;
32import android.widget.Button;
33import android.widget.FrameLayout;
34import android.widget.TextView;
35
36public class FragmentReceiveResultSupport extends FragmentActivity {
37
38    @Override
39    protected void onCreate(Bundle savedInstanceState) {
40        super.onCreate(savedInstanceState);
41        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
42                ViewGroup.LayoutParams.MATCH_PARENT,
43                ViewGroup.LayoutParams.MATCH_PARENT);
44        FrameLayout frame = new FrameLayout(this);
45        frame.setId(R.id.simple_fragment);
46        setContentView(frame, lp);
47
48        if (savedInstanceState == null) {
49            // Do first time initialization -- add fragment.
50            Fragment newFragment = new ReceiveResultFragment();
51            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
52            ft.add(R.id.simple_fragment, newFragment).commit();
53        }
54    }
55
56    public static class ReceiveResultFragment extends Fragment {
57        // Definition of the one requestCode we use for receiving resuls.
58        static final private int GET_CODE = 0;
59
60        private TextView mResults;
61
62        private OnClickListener mGetListener = new OnClickListener() {
63            public void onClick(View v) {
64                // Start the activity whose result we want to retrieve.  The
65                // result will come back with request code GET_CODE.
66                Intent intent = new Intent(getActivity(), SendResult.class);
67                startActivityForResult(intent, GET_CODE);
68            }
69        };
70
71        @Override
72        public void onCreate(Bundle savedInstanceState) {
73            super.onCreate(savedInstanceState);
74        }
75
76        @Override
77        public void onSaveInstanceState(Bundle outState) {
78            super.onSaveInstanceState(outState);
79        }
80
81        @Override
82        public View onCreateView(LayoutInflater inflater, ViewGroup container,
83                Bundle savedInstanceState) {
84            View v = inflater.inflate(R.layout.receive_result, container, false);
85
86            // Retrieve the TextView widget that will display results.
87            mResults = (TextView)v.findViewById(R.id.results);
88
89            // This allows us to later extend the text buffer.
90            mResults.setText(mResults.getText(), TextView.BufferType.EDITABLE);
91
92            // Watch for button clicks.
93            Button getButton = (Button)v.findViewById(R.id.get);
94            getButton.setOnClickListener(mGetListener);
95
96            return v;
97        }
98
99        /**
100         * This method is called when the sending activity has finished, with the
101         * result it supplied.
102         */
103        @Override
104        public void onActivityResult(int requestCode, int resultCode, Intent data) {
105            // You can use the requestCode to select between multiple child
106            // activities you may have started.  Here there is only one thing
107            // we launch.
108            if (requestCode == GET_CODE) {
109
110                // We will be adding to our text.
111                Editable text = (Editable)mResults.getText();
112
113                // This is a standard resultCode that is sent back if the
114                // activity doesn't supply an explicit result.  It will also
115                // be returned if the activity failed to launch.
116                if (resultCode == RESULT_CANCELED) {
117                    text.append("(cancelled)");
118
119                // Our protocol with the sending activity is that it will send
120                // text in 'data' as its result.
121                } else {
122                    text.append("(okay ");
123                    text.append(Integer.toString(resultCode));
124                    text.append(") ");
125                    if (data != null) {
126                        text.append(data.getAction());
127                    }
128                }
129
130                text.append("\n");
131            }
132        }
133    }
134}
135