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 android.content.Context; 20import android.content.res.TypedArray; 21import android.os.Bundle; 22import android.support.v4.app.Fragment; 23import android.support.v4.app.FragmentActivity; 24import android.support.v4.app.FragmentTransaction; 25import android.support.v4.content.ContextCompat; 26import android.support.v4.view.ViewCompat; 27import android.util.AttributeSet; 28import android.view.LayoutInflater; 29import android.view.View; 30import android.view.ViewGroup; 31import android.widget.TextView; 32 33import com.example.android.supportv4.R; 34 35/** 36 * Demonstrates a fragment that can be configured through both Bundle arguments 37 * and layout attributes. 38 */ 39public class FragmentArgumentsSupport extends FragmentActivity { 40//BEGIN_INCLUDE(create) 41 @Override protected void onCreate(Bundle savedInstanceState) { 42 super.onCreate(savedInstanceState); 43 setContentView(R.layout.fragment_arguments_support); 44 45 if (savedInstanceState == null) { 46 // First-time init; create fragment to embed in activity. 47 FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 48 Fragment newFragment = MyFragment.newInstance("From Arguments"); 49 ft.add(R.id.created, newFragment); 50 ft.commit(); 51 } 52 } 53//END_INCLUDE(create) 54 55//BEGIN_INCLUDE(fragment) 56 public static class MyFragment extends Fragment { 57 CharSequence mLabel; 58 59 /** 60 * Create a new instance of MyFragment that will be initialized 61 * with the given arguments. 62 */ 63 static MyFragment newInstance(CharSequence label) { 64 MyFragment f = new MyFragment(); 65 Bundle b = new Bundle(); 66 b.putCharSequence("label", label); 67 f.setArguments(b); 68 return f; 69 } 70 71 /** 72 * Parse attributes during inflation from a view hierarchy into the 73 * arguments we handle. 74 */ 75 @Override 76 public void onInflate(Context context, AttributeSet attrs, Bundle savedInstanceState) { 77 super.onInflate(context, attrs, savedInstanceState); 78 79 TypedArray a = context.obtainStyledAttributes(attrs, 80 R.styleable.FragmentArguments); 81 mLabel = a.getText(R.styleable.FragmentArguments_android_label); 82 a.recycle(); 83 } 84 85 /** 86 * During creation, if arguments have been supplied to the fragment 87 * then parse those out. 88 */ 89 @Override 90 public void onCreate(Bundle savedInstanceState) { 91 super.onCreate(savedInstanceState); 92 93 Bundle args = getArguments(); 94 if (args != null) { 95 CharSequence label = args.getCharSequence("label"); 96 if (label != null) { 97 mLabel = label; 98 } 99 } 100 } 101 102 /** 103 * Create the view for this fragment, using the arguments given to it. 104 */ 105 @Override 106 public View onCreateView(LayoutInflater inflater, ViewGroup container, 107 Bundle savedInstanceState) { 108 View v = inflater.inflate(R.layout.hello_world, container, false); 109 View tv = v.findViewById(R.id.text); 110 ((TextView)tv).setText(mLabel != null ? mLabel : "(no label)"); 111 ViewCompat.setBackground( 112 tv, ContextCompat.getDrawable(getContext(), android.R.drawable.gallery_thumb)); 113 return v; 114 } 115 } 116//END_INCLUDE(fragment) 117} 118