如何打印出完整的堆栈跟踪？
在Android（Java）中，我如何打印出完整的堆栈跟踪？ 如果我的应用程序从nullPointerException或其他东西崩溃，它会打印出一个（几乎）完整的堆栈跟踪，如下所示：
java.io.IOException: Attempted read from closed stream.
com.android.music.sync.common.SoftSyncException: java.io.IOException: Attempted read from closed stream.
at com.android.music.sync.google.MusicSyncAdapter.getChangesFromServerAsDom(MusicSyncAdapter.java:545)
at com.android.music.sync.google.MusicSyncAdapter.fetchDataFromServer(MusicSyncAdapter.java:488)
at com.android.music.sync.common.AbstractSyncAdapter.download(AbstractSyncAdapter.java:417)
at com.android.music.sync.common.AbstractSyncAdapter.innerPerformSync(AbstractSyncAdapter.java:313)
at com.android.music.sync.common.AbstractSyncAdapter.onPerformLoggedSync(AbstractSyncAdapter.java:243)
at com.google.android.common.LoggingThreadedSyncAdapter.onPerformSync(LoggingThreadedSyncAdapter.java:33)
at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:164)
Caused by: java.io.IOException: Attempted read from closed stream.
at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:148)
at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159)
at java.util.zip.GZIPInputStream.readFully(GZIPInputStream.java:212)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:81)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:64)
at android.net.http.AndroidHttpClient.getUngzippedContent(AndroidHttpClient.java:218)
at com.android.music.sync.api.MusicApiClientImpl.createAndExecuteMethod(MusicApiClientImpl.java:312)
at com.android.music.sync.api.MusicApiClientImpl.getItems(MusicApiClientImpl.java:588)
at com.android.music.sync.api.MusicApiClientImpl.getTracks(MusicApiClientImpl.java:638)
at com.android.music.sync.google.MusicSyncAdapter.getChangesFromServerAsDom(MusicSyncAdapter.java:512)
... 6 more
不过有时候，为了调试的目的，我想从我在代码中的位置记录完整的堆栈跟踪。 我想我可以这样做：
StackTraceElement trace = new Exception().getStackTrace();
Log.d("myapp", trace.toString());
但是这只是打印出指向对象的指针......我是否必须迭代所有堆栈跟踪元素才能将它们打印出来？ 还是有一个简单的方法来打印出来呢？
有(String tag, String msg, Throwable tr)签名的所有日志方法的覆盖。
传递一个异常作为第三个参数应该给你logcat中的完整堆栈跟踪。
以下应该做的诀窍：
Log.d("myapp", Log.getStackTraceString(new Exception()));
使用Log.getStackTraceString（Throwable t）。 通过深入挖掘，您可以获得更长的堆栈轨迹。 例如：
try {
...
} catch(Exception e) {
Log.d("Some tag", Log.getStackTraceString(e.getCause().getCause()));
}
Retreived from http://developer.android.com/reference/android/util/Log.html#getStackTraceString%28java.lang.Throwable%29
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