【发布时间】：2013-07-12 13:14:40
【问题描述】：
我正在测试适用于 Android 的新 Firebase 库，不幸的是它无法正常工作，这是我放在 onCreate MainActivity.method 上的代码：
Firebase ref = new Firebase("https://mydatabase.firebaseio.com/");
// Read data and react to changes
ref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot snap) {
Log.e("FIREBASE", snap.getName() + " -> " + snap.getValue());
}
@Override public void onCancelled() { }
});
输出：没有消息显示和调试错误：
07-15 00:01:49.020: D/ActionBarSherlock(13362): [callbackPrepareOptionsMenu] returning true
07-15 00:01:49.020: D/ActionBarSherlock(13362): [dispatchPrepareOptionsMenu] returning true
07-15 00:01:49.370: D/dalvikvm(13362): GC_CONCURRENT freed 263K, 4% free 9700K/10055K, paused 20ms+4ms
07-15 00:01:49.830: D/WebSocket(13362): ws_0 - closed with code -1 and reason:
07-15 00:01:49.830: D/WebSocket(13362): ws_0 - closing itself
07-15 00:01:49.830: D/Connection(13362): conn_0 - Realtime connection failed
07-15 00:01:49.830: D/Connection(13362): conn_0 - closing realtime connection
07-15 00:01:49.830: D/PersistentConnection(13362): pc_0 - Got on disconnect
07-15 00:01:49.830: D/PersistentConnection(13362): pc_0 - Reconnecting in 0ms
07-15 00:01:49.830: D/ViewManager(13362): Raising events for /.info/connected
07-15 00:01:49.830: D/ViewManager(13362): Marking queries complete for /.info/connected
07-15 00:01:49.830: D/ViewManager(13362): Marking queryMap complete:null
07-15 00:01:49.840: D/Connection(13362): conn_1 - Opening a connection
07-15 00:01:50.670: D/WebSocket(13362): ws_1 - closed with code -1 and reason:
07-15 00:01:50.670: D/WebSocket(13362): ws_1 - closing itself
07-15 00:01:50.670: D/Connection(13362): conn_1 - Realtime connection failed
07-15 00:01:50.670: D/Connection(13362): conn_1 - closing realtime connection
07-15 00:01:50.670: D/PersistentConnection(13362): pc_0 - Got on disconnect
07-15 00:01:50.670: D/PersistentConnection(13362): pc_0 - Reconnecting in 342ms
07-15 00:01:50.670: D/ViewManager(13362): Raising events for /.info/connected
07-15 00:01:50.670: D/ViewManager(13362): Marking queries complete for /.info/connected
07-15 00:01:50.670: D/ViewManager(13362): Marking queryMap complete:null
PS : 我把 INTERNET 权限放在 AndroidManifest 文件上。
PS 2：我下载了聊天示例，但它也不起作用。
【问题讨论】：
-
您运行的是哪个版本的 Android？另外，您可以将以下内容添加到主要活动的顶部并发布日志输出吗？静态 { Firebase.getDefaultConfig().setLogLevel(Logger.Level.DEBUG); }
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我测试了setloglevel，但它没有显示...我的android版本：4.0.4 span>
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如果您在主要活动的顶部包含该代码，它应该将日志消息添加到 logcat 输出（“adb -e logcat”）。你没有收到任何消息吗？
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你的意思是没有日志输出？你在真正的硬件上运行吗？在这种情况下，您需要“adb -d logcat”来获取日志输出。
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似乎是这个问题：code.google.com/p/android/issues/detail?id=12955#c12 这需要我一点时间，但我会努力找到解决方法。