登录后重新抛出的UncaughtExceptionHandler异常

问题描述

在我的应用程序类，我想抓住一个强制关闭它发生之前，这样我就可以登录，然后重新抛出这样的机器人可以处理它。我这样做是因为有些用户不报的力量关闭。

In my Application class I am trying to catch a force close before it happens, so I can log it and then rethrow it so the android can handle it. I do this since some users do not report force closes.

我开发的日食，月食，并没有让我重新抛出异常。它显示了一个错误说未处理的异常Throwable类型：环绕的try / catch。我怎样才能重新抛出异常？

I am developing in eclipse, and eclipse is not allowing me to rethrow the exception. It shows an error saying "Unhandled exception type Throwable: Surround with try/catch". How can I rethrow the exception?

public class MainApplication extends Application
{
    @Override
    public void onCreate()
    {
    super.onCreate();

    try
    {
        //Log exception before app force closes
        Thread.currentThread().setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
            @Override
            public void uncaughtException(Thread thread, Throwable ex) {
                AnalyticsUtils.getInstance(MainApplication.this).trackEvent(
                        "Errors",                       // Category
                        "MainActivity",                 // Action
                        "Force Close: "+ex.toString(),  // Label
                        0);                             // Value
                AnalyticsUtils.getInstance(MainApplication.this).dispatch();

                Toast.makeText(MainApplication.this, "Snap! Something broke. Please report the Force Close so I can fix it.", Toast.LENGTH_LONG);

                //rethrow the Exception so user can report it
                //throw ex; //<-- **eclipse is showing an error to surround with try/catch**
            }
        });

    } catch (Exception e)
    {
        e.printStackTrace();
    }
}

}

推荐答案

道歉，而不是Android的专家 - 但看起来像你不能把恩，因为你的方法签名无效uncaughtException（螺纹，可抛出）没有声明它抛出什么。

Apologies, not an Android expert - but looks like you can't throw ex because your method signature "void uncaughtException(Thread, Throwable)" doesn't declare that it "throws" anything.

假设你覆盖的API接口和（a）不能修改这个签名和（b）不想，因为你会扔它断章取义，你能改为使用Decorator模式，基本上子类的默认UncaughtExceptionHandler的实施来记录你的邮件，然后让它在处理执行像往常一样？

Assuming you're overriding an API interface and (a) can't modify this signature and (b) don't want to because you'd be throwing it out of context, could you instead use a decorator pattern and basically subclass the default UncaughtExceptionHandler implementation to log your message and then let it carry on processing as usual?

编辑：未经检验的，但是这看起来有点像：

untested, but this might look a bit like:

    final UncaughtExceptionHandler subclass = Thread.currentThread().getUncaughtExceptionHandler();
    Thread.currentThread().setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread thread, Throwable ex) {
            // your code
            AnalyticsUtils.getInstance(MainApplication.this).trackEvent(
                    "Errors",                       // Category
                    "MainActivity",                 // Action
                    "Force Close: "+ex.toString(),  // Label
                    0);                             // Value
            AnalyticsUtils.getInstance(MainApplication.this).dispatch();
            Toast.makeText(MainApplication.this, "Snap! Something broke. Please report the Force Close so I can fix it.", Toast.LENGTH_LONG);

            // carry on with prior flow
            subclass.uncaughtException(thread, ex);
        }
    });

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