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
我在这里做了我自己的版本: http://androidblogger.blogspot.com/2009/12/how-to-improve-your-application-crash.html
这基本上是相同的事情,但我使用邮件而不是http连接来发送报告,更重要的是,我添加了一些信息,如应用程序版本,操作系统版本,手机型号,或可用内存到我的报告…
其他回答
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?
谷歌Play开发者控制台实际上为你提供了那些已经崩溃和发送报告的应用程序的堆栈跟踪,它也有一个非常好的图表来帮助你查看信息,参见下面的例子:
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");
?>
Flurry analytics为你提供崩溃信息、硬件型号、android版本和实时应用使用统计数据。在新的SDK中,他们似乎提供了更详细的崩溃信息http://www.flurry.com/flurry-crash-analytics.html。
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()));
}
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