程序崩潰處理

public class CrashHandler implements Thread.UncaughtExceptionHandler {

   public static CrashHandler mAppCrashHandler;

   private Thread.UncaughtExceptionHandler mDefaultHandler;

   private MyApplication mAppContext;

   public void initCrashHandler(MyApplication application) {
      this.mAppContext = application;
      // 獲取系統默認的UncaughtException處理器
      mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
      Thread.setDefaultUncaughtExceptionHandler(this);
   }

   public static CrashHandler getInstance() {
      if (mAppCrashHandler == null) {
         mAppCrashHandler = new CrashHandler();
      }
      return mAppCrashHandler;
   }

   @Override
   public void uncaughtException(Thread thread, Throwable ex) {
      if (!handleException(ex) && mDefaultHandler != null) {
         // 如果用戶沒有處理則讓系統默認的異常處理器來處理
         mDefaultHandler.uncaughtException(thread, ex);
      } else {
         AlarmManager mgr = (AlarmManager) mAppContext.getSystemService(Context.ALARM_SERVICE);

         Intent intent = new Intent(mAppContext, WelcomeActivity.class);
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         intent.putExtra("crash", true);
         PendingIntent restartIntent = PendingIntent.getActivity(mAppContext, 0, intent, PendingIntent.FLAG_ONE_SHOT);
         mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000, restartIntent); // 1秒鐘後重啓應用

         android.os.Process.killProcess(android.os.Process.myPid());
         System.exit(0);
         System.gc();
      }
   }

   /**
    * 錯誤處理,收集錯誤信息 發送錯誤報告等操作均在此完成.
    * @param ex
    * @return true:如果處理了該異常信息;否則返回false.
    */
   private boolean handleException(Throwable ex) {
      if (ex == null) {
         return false;
      }
      // 自定義處理錯誤信息
      return true;
   }
}