自定义崩溃界面 CustomActivityOnCrash
- 可以在app崩溃的时候显示自定义的页面,对用户来说非常友好
- 可以非常方便用户再次启动我们的app,或者直接在崩溃后重启
- 还可以定制重启动后的Activity
- 还有一个隐藏的大功能:可以收集崩溃日志,非常方便我们调试。比如测试同事在测试时,有时候很难重现那些崩溃的bug,而这个库可以非常方便的把崩溃日志提取出来,这样对于我们定位bug大有裨益!
public class MyApp extends Application {
@Override
public void onCreate() {
super.onCreate();
//Install CustomActivityOnCrash
CustomActivityOnCrash.install(this);
CustomActivityOnCrash.setLaunchErrorActivityWhenInBackground(true);
CustomActivityOnCrash.setShowErrorDetails(true);
CustomActivityOnCrash.setDefaultErrorActivityDrawable(R.mipmap.ic_launcher);
CustomActivityOnCrash.setEnableAppRestart(true);
//The EventListener you provide can not be an anonymous or non-static inner class
CustomActivityOnCrash.setEventListener(new MyEventListener());
CustomActivityOnCrash.setRestartActivityClass(Activity2.class);
//CustomActivityOnCrash.setErrorActivityClass(Activity2.class);
//Now initialize your error handlers as normal. i.e., ACRA.init(this);or Fabric.with(this, new Crashlytics())
}
private static class MyEventListener implements CustomActivityOnCrash.EventListener {
@Override
public void onLaunchErrorActivity() {
Log.i("bqt", "onLaunchErrorActivity");
}
@Override
public void onRestartAppFromErrorActivity() {
Log.i("bqt", "onRestartAppFromErrorActivity");
}
@Override
public void onCloseAppFromErrorActivity() {
Log.i("bqt", "onCloseAppFromErrorActivity");
}
}
}
How to use
Optional: Customization
Custom behavior
CustomActivityOnCrash.setLaunchErrorActivityWhenInBackground(boolean);
This method defines if the error activity should be launched when the app crashes while on background. By default, this is true. On API<14, it's always true since there is no way to detect查明 if the app is in foreground. If you set it to false, a crash while in background won't launch the error activity nor the system dialog, so it will be a silent crash. The default is true.
CustomActivityOnCrash.setShowErrorDetails(boolean);
This method defines if the error activity must show a button with error details. If you set it to false, the button on the default error activity will disappear, thus disabling the user from seeing the stack trace. The default is true.
CustomActivityOnCrash.setDefaultErrorActivityDrawable(int);
This method allows changing the default upside-down颠倒的 bug image with an image of your choice. You may pass a resource id for a drawable or a mipmap. The default is R.drawable.customactivityoncrash_error_image.
CustomActivityOnCrash.setEnableAppRestart(boolean);
This method defines if the error activity must show a "Restart app" button or a "Close app" button. If you set it to false, the button on the default error activity will close the app instead of restarting. The default is true.
CustomActivityOnCrash.setEventListener(EventListener);
This method allows you to specify an event listener in order to get notified when the library shows the error activity, restarts or closes the app. The EventListener you provide can not be an anonymous or non-static inner class, because it needs to be serialized连载 by the library. The library will throw an exception if you try to set an invalid class. If you set it to null, no event listener will be invoked. The default is null.
CustomActivityOnCrash.setRestartActivityClass(Class<? extends Activity>);
This method sets the activity that must be launched by the error activity when the user presses the button to restart the app. If you don't set it (or set it to null), the library will use the first activity on your manifest that has an intent-filter with action cat.ereza.customactivityoncrash.RESTART, and if there is none, the default launchable activity on your app. If no launchable activity can be found and you didn't specify any, the "restart app" button will become a "close app" button, even if setEnableAppRestart is set to true.
<intent-filter>
<action android:name="cat.ereza.customactivityoncrash.RESTART" />
</intent-filter>
CustomActivityOnCrash.setErrorActivityClass(Class<? extends Activity>);
<activity
android:name="cat.ereza.sample.customactivityoncrash.activity.CustomErrorActivity"
android:label="@string/error_title"
android:process=":error_activity" />
As noted, you can also use the following intent-filter to specify the error activity:
<intent-filter>
<action android:name="cat.ereza.customactivityoncrash.ERROR" />
</intent-filter>
Customization of the default activity
<string name="customactivityoncrash_error_activity_error_occurred_explanation">An unexpected error occurred.</string>
<string name="customactivityoncrash_error_activity_unknown_exception">Unknown exception</string>
<string name="customactivityoncrash_error_activity_restart_app">Restart app</string>
<string name="customactivityoncrash_error_activity_close_app">Close app</string>
<string name="customactivityoncrash_error_activity_error_details">Error details</string>
<string name="customactivityoncrash_error_activity_error_details_title">Error details</string>
<string name="customactivityoncrash_error_activity_error_details_close">Close</string>
<string name="customactivityoncrash_error_activity_error_details_copy">Copy to clipboard</string>
<string name="customactivityoncrash_error_activity_error_details_copied">Copied to clipboard</string>
<string name="customactivityoncrash_error_activity_error_details_clipboard_label">Error information</string>
Completely custom error activity
CustomActivityOnCrash.getStackTraceFromIntent(getIntent());
Returns the stack trace that caused the error as a string.
CustomActivityOnCrash.getAllErrorDetailsFromIntent(getIntent());
Returns several error details including the stack trace that caused the error, as a string. This is used in the default error activity error details dialog.
CustomActivityOnCrash.getRestartActivityClassFromIntent(getIntent());
Returns the class of the activity you have to launch to restart the app, or null if not set.
CustomActivityOnCrash.getEventListenerFromIntent(getIntent());
Returns the event listener that you must pass to restartApplicationWithIntent(activity, intent, eventListener) or closeApplication(activity, eventListener).
CustomActivityOnCrash.restartApplicationWithIntent(activity, intent, eventListener);
Kills the current process and restarts the app again with an startActivity() to the passed intent. You MUST call this to restart the app, or you will end up having several Application class instances and experience multiprocess issues in API<17.
CustomActivityOnCrash.closeApplication(activity, eventListener);
Closes the app and kills the current process. You MUST call this to close the app, or you will end up having several Application class instances and experience multiprocess issues in API<17.
Using Proguard? 混淆
Inner workings 工作原理
- Captures捕获 the stack trace that caused the crash
- Launches a new intent to the error activity passing the stacktrace as an extra.
- Kills the current process.
The inner workings are based on ACRA's dialog reporting mode with some minor tweaks小的调整. Look at the code if you need more detail about how it works.
Incompatibilities 兼容性
- CustomActivityOnCrash will not work in these cases:
- With any custom UncaughtExceptionHandler set after initializing初始化 the library, that does not call back to the original handler.
- With ACRA enabled and reporting mode set to TOAST or DIALOG.
- If you use a custom UncaughtExceptionHandler, it will not be called if you initialize it before the library initialization (so, Crashlytics or ACRA initialization must be done after CustomActivityOnCrash initialization).
- On some rare特殊的 cases on devices with API<14, the app may enter a restart loop when a crash occurs. Therefore, using it on API<14 is not recommended.
- If your app initialization or error activity crash, there is a possibility of entering an infinite无限的 restart loop (this is checked by the library for the most common cases, but could happen in rarer cases).
- The library has not been tested with multidex enabled. It uses Class.forName() to load classes, so maybe that could cause some problem in API<21. If you test it with such configuration, please provide feedback反馈!
- The library has not been tested with multiprocess多进程 apps. If you test it with such configuration, please provide feedback too!
Disclaimers 免责声明
- This will not avoid ANRs from happening.
- This will not catch native errors.
- There is no guarantee保证 that this will work on every device.
- This library will not make you toast for breakfast早餐 :) 这估计是老美的冷笑话
Contributing & license
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