crash反馈-----ACRA使用验证经历

ACRA是什么？

ACRA是一个用来反馈崩溃日志的android库。

崩溃日志发送到哪里？

ACRA支持多种后台方式，也支持自己定制后台

https://github.com/ACRA/acra/wiki/Backends

我个人是使用email的方式

怎么使用？

官方介绍了网址

https://github.com/ACRA/acra/wiki/BasicSetup

新建Application子类MyApplication，做些初始化

MyApplication.java

@ReportsCrashes(
mailTo = "youEMail@gmail.com", // my email here
mode = ReportingInteractionMode.TOAST,
resToastText = R.string.crash_toast_text)
public class MyApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
ACRA.init(this);
}
}

AndroidManifest.xml需要修改两点

1. 申请网络权限

2. 重定向Application为MyApplication

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

<application
android:name="MyApplication"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
...
</application>

混淆后是否也能正确反馈崩溃堆栈呢？

混淆后也可以使用，但是需要对混淆配置做些修改。

buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}

配置文件为app目录下的文件proguard-rules.pro

#====================================
#ACRA specifics
# Restore some Source file names and restore approximate line numbers in the stack traces,
# otherwise the stack traces are pretty useless
-keepattributes SourceFile,LineNumberTable
# ACRA needs "annotations" so add this...
# Note: This may already be defined in the default "proguard-android-optimize.txt"
# file in the SDK. If it is, then you don't need to duplicate it. See your
# "project.properties" file to get the path to the default "proguard-android-optimize.txt".
-keepattributes *Annotation*
# Keep all the ACRA classes
-keep class org.acra.** { *; }

编译release版本，反编译后用jdgui查看，验证了下，确实混淆了。



安装后，使用时产生的崩溃日志

USER_COMMENT=null
ANDROID_VERSION=4.3
APP_VERSION_NAME=1.0
BRAND=samsung
PHONE_MODEL=GT-N7102
CUSTOM_DATA=
STACK_TRACE=java.lang.NullPointerException
at com.example.jacksonke.configchangedemo.MainActivity$PlaceholderFragment.makeCrash(MainActivity.java:107)
at com.example.jacksonke.configchangedemo.b.doClick(MainActivity$PlaceholderFragment$$ViewBinder.java:28)
at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:22)
at android.view.View.performClick(View.java:4475)
at android.view.View$PerformClick.run(View.java:18786)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5528)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1209)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1025)
at dalvik.system.NativeStart.main(Native Method)

能正确的定位到崩溃点。

具体文档可查看
https://github.com/ACRA/acra/wiki/ProGuard