移动中的黑屏死机

Question

我试图在我的客户的手机中找出导致死亡黑屏的原因。 apk在不同的地方和随机的时刻导致黑屏死机和应用程序卡住。我几乎到处都有例外，但我没有收到任何异常消息。我会从我的代码中发送一个examample： 什么能导致这种黑屏？

这是我的班级：

public class AppCompatCookieActivity extends AppCompatActivity {

   @Override
   public void onResume() {
      super.onResume();
      // start cookie syncing for pre-lollipop devices
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
         CookieSyncManager.getInstance().startSync();
      }
   }

   @Override
   public void onPause() {
      // stop cookie syncing for pre-lollipop devices
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
         CookieSyncManager.getInstance().sync();
      }
      super.onPause();
   }

   public final void enableCookies(WebView webView) {
      // enable javascript (has security implications!)
      webView.getSettings().setJavaScriptEnabled(true);

      // enable cookies.
      CookieManager.getInstance().setAcceptCookie(true);

      // enable fileScheme cookies (has security implications!)
      // it is recommended to comment this out should you find it not necessary
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
         CookieManager.getInstance().setAcceptFileSchemeCookies(true);
      }

      // enable third party cookies
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
          CookieManager.getInstance().setAcceptThirdPartyCookies(webView, true);
      }
   }
}

这是我在运行时的主要活动：

class MyListViewAdapterInventory : BaseAdapter<InventoryPreviewClass>
{
    public List<InventoryPreviewClass> mitems;
    private Context mContext;
    private int mRowLayout;
    private int[] mAlternatingColors;


    public MyListViewAdapterInventory(Context context, int rowLayout, List<InventoryPreviewClass> items)
    {
        mitems = items;
        mContext = context;
        mRowLayout = rowLayout;
        mAlternatingColors = new int[] { 0xF2F2F2, 0xbfddff };

    }
    public override int Count
    {
        get
        {
            return mitems.Count;
        }
    }
    public override long GetItemId(int position)
    {
        return position;
    }
    public override InventoryPreviewClass this[int position]
    {
        get
        {
            return mitems[position];
        }

    }
    public override View GetView(int position, View convertView, ViewGroup parent)
    {



        View row = convertView;
        if (row == null)
        {
            row = LayoutInflater.From(mContext).Inflate(Resource.Layout.InventoryPreview, null, false);

        }


         row = LayoutInflater.From(mContext).Inflate(Resource.Layout.InventoryPreview, null, false);
            row.SetBackgroundColor(GetColorFromInteger(mAlternatingColors[position % mAlternatingColors.Length]));
        TextView txtInventoryID = row.FindViewById<TextView>(Resource.Id.txtInventoryID);
            txtInventoryID.Text = mitems[position].InventoryItemID;
        TextView txtInventoryName = row.FindViewById<TextView>(Resource.Id.txtInventoryName);
            txtInventoryName.Text = mitems[position].InventoryItemName;
        TextView txtInventoryPrice = row.FindViewById<TextView>(Resource.Id.txtInventoryPrice);
            txtInventoryPrice.Text = mitems[position].InventoryItemPrice.Replace(",", ".");
        Button ExtraBtn = row.FindViewById<Button>(Resource.Id.ExtrasBtn);

            ExtraBtn.Click += (sender, e) =>
            {
                try
                {
                    Connection.InventoryItemID = mitems[position].InventoryItemID;
                    Connection.InventoryItemName = mitems[position].InventoryItemName;
                    Connection.RetailPrice = mitems[position].InventoryItemPrice;
                    Toast toast = Toast.MakeText(mContext, txtInventoryName.Text, ToastLength.Short);
                    toast.Show();
                    mContext.StartActivity(typeof(ExtrasPreviewMain));
                }
                catch (Exception ex)
                {
                    Toast toast = Toast.MakeText(mContext, Convert.ToString(ex), ToastLength.Long);
                    toast.Show();
                }

            };




        return row;

    }
    private Color GetColorFromInteger(int color)
    {
        return Color.Rgb(Color.GetRedComponent(color), Color.GetGreenComponent(color), Color.GetBlueComponent(color));
    }
}