在我的Application类中,我试图在它发生之前捕获一个强制关闭,所以我可以记录它然后重新抛出它以便
android可以处理它.我这样做是因为有些用户没有报告强制关闭.
我在eclipse中开发,eclipse不允许我重新抛出异常.它显示错误说“未处理的异常类型Throwable：Surround with try / catch”.我怎样才能重新抛出异常？
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();
}
}
}
解决方法
道歉,而不是Android专家 – 但看起来你不能抛出ex,因为你的方法签名“void uncaughtException(Thread,Throwable)”并没有声明它“抛出”任何东西.
假设您正在覆盖API接口并且(a)无法修改此签名并且(b)不想因为您将其抛弃在上下文之外,您是否可以使用装饰器模式并基本上将默认子类化UncaughtExceptionHandler实现记录您的消息,然后让它像往常一样进行处理？
编辑：未经测试,但这看起来有点像：
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,Toast.LENGTH_LONG).show();
// carry on with prior flow
subclass.uncaughtException(thread,ex);
}
});
