分割类故障（11） [英] Class segmentation fault (11)

问题描述

请按照以下步骤操作：

1. 创建新的 Firemonkey手机类应用程序


2. TGeustureManager 组件添加到窗体



3. 添加2 TButton的组件到表单

1. Create New Firemonkey Moblie Application
2. Add TGeustureManager component to the Form

3. Add 2 TButton components to the Form

• Button1.Text：Button1的：做些什么......


• Button2.Text：将Button2：退出应用程序...

在Button2的组件双击并编写以下code为的OnClick 事件：

Double click on Button2 Component and write the following code for OnClick Event:

procedure TForm1.Button2Click(Sender: TObject);
begin
  if MessageDlg('Are you sure you want to Exit?', TMsgDlgType.mtWarning,
          [TMsgDlgBtn.mbYes, TMsgDlgBtn.mbNo], 0) = mrYes then
    SharedActivity.finish;
end;

运行在调试模式下的应用程序。

在设备上，单击该按钮2，然后单击是弹出的消息。例外会出现：

Run the application in debug mode.

on the device, click the button 2, then click yes to the popped up message. An exception will appear:

这是为什么发生异常？

我认为这是关系到未使用 TGeustureManager 组件。但NO，是未

I thought it is related to unused TGeustureManager component. but NO it is NOT:

1. 如果您打开自带的德尔福xe5的位置演示项目。


2. 添加如下图所示 TButton的组件位置标签：
   


3. 如上面添加同一code到的OnClick 事件。


4. 运行应用程序，并单击Button5，你会得到相同的异常。

1. If you open the Location Demo project that comes with Delphi xe5.
2. Add TButton component to Location Label as shown in the image below:
3. Add the same code as above to OnClick Event.
4. Run the application, and click on Button5, you will get the same exception.

这是一个错误，我应该举报？还是我做错了什么？

Is this a bug should I report? or am I doing something wrong?

推荐答案

也许你正在杀死运行，其前执行流已经耗尽，从而导致问题的活动。就像在形式方法释放一种形式....

Possibly that you are killing the activity that is running, before its execution flow has been exhausted, thereby causing problems. Much like freeing a form in a form method....

如果您更换会发生什么：

What happens if you replace:

SharedActivity.finish

与

uses
  FMX.Helpers.Android;
...
CallOnUIThread(procedure begin SharedActivity.finish end);

[从内存类型，因此可能需要一些调整]

[ Typed from memory, so may need some tweaking ]

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