如何从我的Android应用程序中获得崩溃数据(至少堆栈跟踪)?至少在我自己的设备上工作时可以通过电缆检索,但理想的情况是,从我的应用程序在野外运行的任何实例中都可以,这样我就可以改进它,使它更可靠。
当前回答
对于另一个崩溃报告/异常跟踪服务检查Raygun。io -它有一堆很好的逻辑处理Android崩溃,包括体面的用户体验时,将其插入到你的应用程序(两行代码在你的主活动和几行XML粘贴到AndroidManifest)。
当你的应用程序崩溃时,它会自动抓取堆栈跟踪,硬件/软件的环境数据,用户跟踪信息,任何你指定的自定义数据等。它异步地将其提交给API,这样就不会阻塞UI线程,如果没有可用的网络,它会将其缓存到磁盘。
免责声明:我构建了Android提供商:)
其他回答
For sample applications and debugging purposes, I use a simple solution that allows me to write the stacktrace to the sd card of the device and/or upload it to a server. This solution has been inspired by Project android-remote-stacktrace (specifically, the save-to-device and upload-to-server parts) and I think it solves the problem mentioned by Soonil. It's not optimal, but it works and you can improve it if you want to use it in a production application. If you decide to upload the stacktraces to the server, you can use a php script (index.php) to view them. If you're interested, you can find all the sources below - one java class for your application and two optional php scrips for the server hosting the uploaded stacktraces.
在上下文中(例如主活动),调用
if(!(Thread.getDefaultUncaughtExceptionHandler() instanceof CustomExceptionHandler)) {
Thread.setDefaultUncaughtExceptionHandler(new CustomExceptionHandler(
"/sdcard/<desired_local_path>", "http://<desired_url>/upload.php"));
}
CustomExceptionHandler
public class CustomExceptionHandler implements UncaughtExceptionHandler {
private UncaughtExceptionHandler defaultUEH;
private String localPath;
private String url;
/*
* if any of the parameters is null, the respective functionality
* will not be used
*/
public CustomExceptionHandler(String localPath, String url) {
this.localPath = localPath;
this.url = url;
this.defaultUEH = Thread.getDefaultUncaughtExceptionHandler();
}
public void uncaughtException(Thread t, Throwable e) {
String timestamp = TimestampFormatter.getInstance().getTimestamp();
final Writer result = new StringWriter();
final PrintWriter printWriter = new PrintWriter(result);
e.printStackTrace(printWriter);
String stacktrace = result.toString();
printWriter.close();
String filename = timestamp + ".stacktrace";
if (localPath != null) {
writeToFile(stacktrace, filename);
}
if (url != null) {
sendToServer(stacktrace, filename);
}
defaultUEH.uncaughtException(t, e);
}
private void writeToFile(String stacktrace, String filename) {
try {
BufferedWriter bos = new BufferedWriter(new FileWriter(
localPath + "/" + filename));
bos.write(stacktrace);
bos.flush();
bos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private void sendToServer(String stacktrace, String filename) {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("filename", filename));
nvps.add(new BasicNameValuePair("stacktrace", stacktrace));
try {
httpPost.setEntity(
new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
httpClient.execute(httpPost);
} catch (IOException e) {
e.printStackTrace();
}
}
}
upload.php
<?php
$filename = isset($_POST['filename']) ? $_POST['filename'] : "";
$message = isset($_POST['stacktrace']) ? $_POST['stacktrace'] : "";
if (!ereg('^[-a-zA-Z0-9_. ]+$', $filename) || $message == ""){
die("This script is used to log debug data. Please send the "
. "logging message and a filename as POST variables.");
}
file_put_contents($filename, $message . "\n", FILE_APPEND);
?>
index . php
<?php
$myDirectory = opendir(".");
while($entryName = readdir($myDirectory)) {
$dirArray[] = $entryName;
}
closedir($myDirectory);
$indexCount = count($dirArray);
sort($dirArray);
print("<TABLE border=1 cellpadding=5 cellspacing=0 \n");
print("<TR><TH>Filename</TH><TH>Filetype</th><th>Filesize</TH></TR>\n");
for($index=0; $index < $indexCount; $index++) {
if ((substr("$dirArray[$index]", 0, 1) != ".")
&& (strrpos("$dirArray[$index]", ".stacktrace") != false)){
print("<TR><TD>");
print("<a href=\"$dirArray[$index]\">$dirArray[$index]</a>");
print("</TD><TD>");
print(filetype($dirArray[$index]));
print("</TD><TD>");
print(filesize($dirArray[$index]));
print("</TD></TR>\n");
}
}
print("</TABLE>\n");
?>
谷歌改变了你实际得到的崩溃报告的数量。以前你只能得到手动报告的错误报告。
自从上次开发者大会和Android Vitals的引入,你也会从用户那里得到崩溃报告,这些用户已经启用了共享诊断数据。
您将看到从用户选择自动共享使用情况和诊断数据的Android设备收集的所有崩溃。可获得前两个月的数据。
查看崩溃和应用程序未响应(ANR)错误
谷歌Firebase是谷歌最新的(2016)方式,为您提供崩溃/错误数据在您的手机。 将它包含在您的构建中。Gradle文件:
compile 'com.google.firebase:firebase-crash:9.0.0'
致命崩溃会自动记录,不需要用户输入,你也可以记录非致命崩溃或其他事件,如下所示:
try
{
}
catch(Exception ex)
{
FirebaseCrash.report(new Exception(ex.toString()));
}
If your app is being downloaded by other people and crashing on remote devices, you may want to look into an Android error reporting library (referenced in this SO post). If it's just on your own local device, you can use LogCat. Even if the device wasn't connected to a host machine when the crash occurred, connected the device and issuing an adb logcat command will download the entire logcat history (at least to the extent that it is buffered which is usually a loooot of log data, it's just not infinite). Do either of those options answer your question? If not can you attempt to clarify what you're looking for a bit more?
可以使用Thread.setDefaultUncaughtExceptionHandler()处理这些异常,但是这似乎与Android处理异常的方法相混淆。我尝试使用这样的处理程序:
private class ExceptionHandler implements Thread.UncaughtExceptionHandler {
@Override
public void uncaughtException(Thread thread, Throwable ex){
Log.e(Constants.TAG, "uncaught_exception_handler: uncaught exception in thread " + thread.getName(), ex);
//hack to rethrow unchecked exceptions
if(ex instanceof RuntimeException)
throw (RuntimeException)ex;
if(ex instanceof Error)
throw (Error)ex;
//this should really never happen
Log.e(Constants.TAG, "uncaught_exception handler: unable to rethrow checked exception");
}
}
然而,即使重新抛出异常,我也无法获得所需的行为,即记录异常,同时仍然允许Android关闭组件,所以我在一段时间后放弃了它。
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