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