1/* 2 * Copyright (C) 2014 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.musicbrowserdemo; 18 19import android.content.Context; 20import android.content.ComponentName; 21import android.content.Intent; 22import android.content.pm.PackageManager; 23import android.content.pm.ResolveInfo; 24import android.service.media.MediaBrowserService; 25import android.os.Bundle; 26import android.support.v4.app.FragmentActivity; 27import android.support.v4.app.FragmentTransaction; 28import android.support.v4.app.ListFragment; 29import android.util.Log; 30import android.view.LayoutInflater; 31import android.view.View; 32import android.view.ViewGroup; 33import android.widget.BaseAdapter; 34import android.widget.ListView; 35import android.widget.TextView; 36 37import java.util.ArrayList; 38import java.util.List; 39 40// TODO: Include an icon. 41 42public class AppListFragment extends ListFragment { 43 44 private Adapter mAdapter; 45 private List<Item> mItems; 46 47 public AppListFragment() { 48 } 49 50 @Override 51 public void onActivityCreated(Bundle savedInstanceState) { 52 super.onActivityCreated(savedInstanceState); 53 mAdapter = new Adapter(); 54 setListAdapter(mAdapter); 55 } 56 57 @Override 58 public void onListItemClick(ListView l, View v, int position, long id) { 59 final Item item = mItems.get(position); 60 61 Log.i("AppListFragment", "Item clicked: " + position + " -- " + item.component); 62 63 final BrowserListFragment fragment = new BrowserListFragment(); 64 65 final Bundle args = new Bundle(); 66 args.putParcelable(BrowserListFragment.ARG_COMPONENT, item.component); 67 fragment.setArguments(args); 68 69 getFragmentManager().beginTransaction() 70 .replace(android.R.id.content, fragment) 71 .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN) 72 .addToBackStack(null) 73 .commit(); 74 } 75 76 private static class Item { 77 final String label; 78 final ComponentName component; 79 80 Item(String l, ComponentName c) { 81 this.label = l; 82 this.component = c; 83 } 84 } 85 86 private class Adapter extends BaseAdapter { 87 private final LayoutInflater mInflater; 88 89 Adapter() { 90 super(); 91 92 final Context context = getActivity(); 93 mInflater = LayoutInflater.from(context); 94 95 // Load the data 96 final PackageManager pm = context.getPackageManager(); 97 final Intent intent = new Intent(MediaBrowserService.SERVICE_INTERFACE); 98 final List<ResolveInfo> list = pm.queryIntentServices(intent, 0); 99 final int N = list.size(); 100 mItems = new ArrayList(N); 101 for (int i=0; i<N; i++) { 102 final ResolveInfo ri = list.get(i); 103 mItems.add(new Item(ri.loadLabel(pm).toString(), new ComponentName( 104 ri.serviceInfo.applicationInfo.packageName, 105 ri.serviceInfo.name))); 106 } 107 } 108 109 @Override 110 public int getCount() { 111 return mItems.size(); 112 } 113 114 @Override 115 public Item getItem(int position) { 116 return mItems.get(position); 117 } 118 119 @Override 120 public long getItemId(int position) { 121 return position; 122 } 123 124 @Override 125 public int getItemViewType(int position) { 126 return 1; 127 } 128 129 @Override 130 public View getView(int position, View convertView, ViewGroup parent) { 131 if (convertView == null) { 132 convertView = mInflater.inflate(android.R.layout.simple_list_item_1, parent, false); 133 } 134 135 final TextView tv = (TextView)convertView; 136 final Item item = mItems.get(position); 137 tv.setText(item.label); 138 139 return convertView; 140 } 141 142 @Override 143 public int getViewTypeCount() { 144 return 1; 145 } 146 } 147} 148 149 150