1 /*
2  * Copyright (C) 2010 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 
17 package com.example.android.apis.app;
18 
19 import com.example.android.apis.R;
20 
21 import android.app.Activity;
22 import android.app.Fragment;
23 import android.app.FragmentTransaction;
24 import android.content.res.TypedArray;
25 import android.os.Bundle;
26 import android.util.AttributeSet;
27 import android.view.LayoutInflater;
28 import android.view.View;
29 import android.view.ViewGroup;
30 import android.widget.TextView;
31 
32 /**
33  * Demonstrates a fragment that can be configured through both Bundle arguments
34  * and layout attributes.
35  */
36 public class FragmentArguments extends Activity {
37 //BEGIN_INCLUDE(create)
onCreate(Bundle savedInstanceState)38     @Override protected void onCreate(Bundle savedInstanceState) {
39         super.onCreate(savedInstanceState);
40         setContentView(R.layout.fragment_arguments);
41 
42         if (savedInstanceState == null) {
43             // First-time init; create fragment to embed in activity.
44             FragmentTransaction ft = getFragmentManager().beginTransaction();
45             Fragment newFragment = MyFragment.newInstance("From Arguments");
46             ft.add(R.id.created, newFragment);
47             ft.commit();
48         }
49     }
50 //END_INCLUDE(create)
51 
52 //BEGIN_INCLUDE(fragment)
53     public static class MyFragment extends Fragment {
54         CharSequence mLabel;
55 
56         /**
57          * Create a new instance of MyFragment that will be initialized
58          * with the given arguments.
59          */
newInstance(CharSequence label)60         static MyFragment newInstance(CharSequence label) {
61             MyFragment f = new MyFragment();
62             Bundle b = new Bundle();
63             b.putCharSequence("label", label);
64             f.setArguments(b);
65             return f;
66         }
67 
68         /**
69          * Parse attributes during inflation from a view hierarchy into the
70          * arguments we handle.
71          */
onInflate(Activity activity, AttributeSet attrs, Bundle savedInstanceState)72         @Override public void onInflate(Activity activity, AttributeSet attrs,
73                 Bundle savedInstanceState) {
74             super.onInflate(activity, attrs, savedInstanceState);
75 
76             TypedArray a = activity.obtainStyledAttributes(attrs,
77                     R.styleable.FragmentArguments);
78             mLabel = a.getText(R.styleable.FragmentArguments_android_label);
79             a.recycle();
80         }
81 
82         /**
83          * During creation, if arguments have been supplied to the fragment
84          * then parse those out.
85          */
onCreate(Bundle savedInstanceState)86         @Override public void onCreate(Bundle savedInstanceState) {
87             super.onCreate(savedInstanceState);
88 
89             Bundle args = getArguments();
90             if (args != null) {
91                 mLabel = args.getCharSequence("label", mLabel);
92             }
93         }
94 
95         /**
96          * Create the view for this fragment, using the arguments given to it.
97          */
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)98         @Override public View onCreateView(LayoutInflater inflater, ViewGroup container,
99                 Bundle savedInstanceState) {
100             View v = inflater.inflate(R.layout.hello_world, container, false);
101             View tv = v.findViewById(R.id.text);
102             ((TextView)tv).setText(mLabel != null ? mLabel : "(no label)");
103             tv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.gallery_thumb));
104             return v;
105         }
106     }
107 //END_INCLUDE(fragment)
108 }
109