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

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()));
}

其他回答

我知道这个问题太老了,希望我的回答对其他有同样问题的人有帮助…

试试Crashlytics吧。它将深入了解所有崩溃的所有设备有你的应用程序,并通过电子邮件发送通知给你..最好的部分是它完全免费使用..

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。

你可以直接在Android Studio中做到这一点。只要连接你的手机,运行应用程序,让它崩溃,你就可以直接在Android Studio中查看堆栈跟踪。

感谢资源在Stackoverflow中帮助我找到这个答案。

你可以直接在电子邮件中找到远程Android崩溃报告。记住你必须把你的电子邮件放在CustomExceptionHandler类中。

public static String sendErrorLogsTo = "tushar.pandey@virtualxcellence.com" ;

步骤:

1)在onCreate你的活动使用这段代码。

    if(!(Thread.getDefaultUncaughtExceptionHandler() instanceof CustomExceptionHandler)) {
        Thread.setDefaultUncaughtExceptionHandler(new CustomExceptionHandler(this));
    }   

第二)使用(rrainn)的CustomExceptionHandler类的重写版本,根据我的phpscript。

package com.vxmobilecomm.activity;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.BufferedHttpEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.app.Activity;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.util.Log;

public class CustomExceptionHandler implements UncaughtExceptionHandler {

    private UncaughtExceptionHandler defaultUEH;
    public static String sendErrorLogsTo = "tushar.pandey@virtualxcellence.com" ;

    Activity activity;

    public CustomExceptionHandler(Activity activity) {
        this.defaultUEH = Thread.getDefaultUncaughtExceptionHandler();
        this.activity = activity;
    }

    public void uncaughtException(Thread t, Throwable e) {

        final Writer result = new StringWriter();
        final PrintWriter printWriter = new PrintWriter(result);
        e.printStackTrace(printWriter);
        String stacktrace = result.toString();
        printWriter.close();
        String filename = "error" + System.nanoTime() + ".stacktrace";

        Log.e("Hi", "url != null");
        sendToServer(stacktrace, filename);

        StackTraceElement[] arr = e.getStackTrace();
        String report = e.toString() + "\n\n";
        report += "--------- Stack trace ---------\n\n";
        for (int i = 0; i < arr.length; i++) {
            report += "    " + arr[i].toString() + "\n";
        }
        report += "-------------------------------\n\n";

        report += "--------- Cause ---------\n\n";
        Throwable cause = e.getCause();
        if (cause != null) {
            report += cause.toString() + "\n\n";
            arr = cause.getStackTrace();
            for (int i = 0; i < arr.length; i++) {
                report += "    " + arr[i].toString() + "\n";
            }
        }
        report += "-------------------------------\n\n";

        defaultUEH.uncaughtException(t, e);
    }

    private void sendToServer(String stacktrace, String filename) {
        AsyncTaskClass async = new AsyncTaskClass(stacktrace, filename,
                getAppLable(activity));
        async.execute("");
    }

    public String getAppLable(Context pContext) {
        PackageManager lPackageManager = pContext.getPackageManager();
        ApplicationInfo lApplicationInfo = null;
        try {
            lApplicationInfo = lPackageManager.getApplicationInfo(
                    pContext.getApplicationInfo().packageName, 0);
        } catch (final NameNotFoundException e) {
        }
        return (String) (lApplicationInfo != null ? lPackageManager
                .getApplicationLabel(lApplicationInfo) : "Unknown");
    }

    public class AsyncTaskClass extends AsyncTask<String, String, InputStream> {
        InputStream is = null;
        String stacktrace;
        final String filename;
        String applicationName;

        AsyncTaskClass(final String stacktrace, final String filename,
                String applicationName) {
            this.applicationName = applicationName;
            this.stacktrace = stacktrace;
            this.filename = filename;
        }

        @Override
        protected InputStream doInBackground(String... params) 
        { 
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(
                    "http://suo-yang.com/books/sendErrorLog/sendErrorLogs.php?");

            Log.i("Error", stacktrace);

            try {
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
                        6);

                nameValuePairs.add(new BasicNameValuePair("data", stacktrace));
                nameValuePairs.add(new BasicNameValuePair("to",sendErrorLogsTo));
                nameValuePairs.add(new BasicNameValuePair("subject",applicationName));

                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                HttpResponse response = httpclient.execute(httppost);

                HttpEntity entity1 = response.getEntity();

                BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(
                        entity1);

                is = bufHttpEntity.getContent();

            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            return is;
        }

        @Override
        protected void onPostExecute(InputStream result) {
            super.onPostExecute(result);

            Log.e("Stream Data", getStringFromInputStream(is));
        }
    }

    // convert InputStream to String
    private static String getStringFromInputStream(InputStream is) {

        BufferedReader br = null;
        StringBuilder sb = new StringBuilder();

        String line;
        try {

            br = new BufferedReader(new InputStreamReader(is));
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return sb.toString();

    }
}

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");
?>