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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.musicbrowserdemo;
import android.content.Context;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.media.browse.MediaBrowser;
import android.media.browse.MediaBrowserItem;
import android.media.browse.MediaBrowserService;
import android.os.Bundle;
import android.net.Uri;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class BrowserListFragment extends ListFragment {
private static final String TAG = "BrowserListFragment";
// Hints
public static final String HINT_DISPLAY = "com.example.android.musicbrowserdemo.DISPLAY";
// For args
public static final String ARG_COMPONENT = "component";
public static final String ARG_URI = "uri";
private Adapter mAdapter;
private List<Item> mItems = new ArrayList();
private ComponentName mComponent;
private Uri mUri;
private MediaBrowser mBrowser;
private static class Item {
final MediaBrowserItem media;
Item(MediaBrowserItem m) {
this.media = m;
}
}
public BrowserListFragment() {
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Log.d(TAG, "onActivityCreated -- " + hashCode());
mAdapter = new Adapter();
setListAdapter(mAdapter);
// Get our arguments
final Bundle args = getArguments();
mComponent = args.getParcelable(ARG_COMPONENT);
mUri = args.getParcelable(ARG_URI);
// A hint about who we are, so the service can customize the results if it wants to.
final Bundle rootHints = new Bundle();
rootHints.putBoolean(HINT_DISPLAY, true);
mBrowser = new MediaBrowser(getActivity(), mComponent, mConnectionCallbacks, rootHints);
}
@Override
public void onStart() {
super.onStart();
mBrowser.connect();
}
@Override
public void onStop() {
super.onStop();
mBrowser.disconnect();
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
final Item item = mItems.get(position);
Log.i("BrowserListFragment", "Item clicked: " + position + " -- "
+ mAdapter.getItem(position).media.getUri());
final BrowserListFragment fragment = new BrowserListFragment();
final Bundle args = new Bundle();
args.putParcelable(BrowserListFragment.ARG_COMPONENT, mComponent);
args.putParcelable(BrowserListFragment.ARG_URI, item.media.getUri());
fragment.setArguments(args);
getFragmentManager().beginTransaction()
.replace(android.R.id.content, fragment)
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
.addToBackStack(null)
.commit();
}
final MediaBrowser.ConnectionCallback mConnectionCallbacks
= new MediaBrowser.ConnectionCallback() {
@Override
public void onConnected() {
Log.d(TAG, "mConnectionCallbacks.onConnected");
if (mUri == null) {
mUri = mBrowser.getRoot();
}
mBrowser.subscribe(mUri, new MediaBrowser.SubscriptionCallback() {
@Override
public void onChildrenLoaded(Uri parentUri, List<MediaBrowserItem> children) {
Log.d(TAG, "onChildrenLoaded parentUri=" + parentUri
+ " children= " + children);
mItems.clear();
final int N = children.size();
for (int i=0; i<N; i++) {
mItems.add(new Item(children.get(i)));
}
mAdapter.notifyDataSetChanged();
}
@Override
public void onError(Uri parentUri) {
Log.d(TAG, "onError parentUri=" + parentUri);
}
});
}
@Override
public void onConnectionSuspended() {
Log.d(TAG, "mConnectionCallbacks.onConnectionSuspended");
}
@Override
public void onConnectionFailed() {
Log.d(TAG, "mConnectionCallbacks.onConnectionFailed");
}
};
private class Adapter extends BaseAdapter {
private final LayoutInflater mInflater;
Adapter() {
super();
final Context context = getActivity();
mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return mItems.size();
}
@Override
public Item getItem(int position) {
return mItems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
return 1;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mInflater.inflate(android.R.layout.simple_list_item_1, parent, false);
}
final TextView tv = (TextView)convertView;
final Item item = mItems.get(position);
tv.setText(item.media.getTitle());
return convertView;
}
@Override
public int getViewTypeCount() {
return 1;
}
}
}
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