Flex interview questions

1. use flex bulider3 to create a new one. the Default background of the mxml page is blue. How can I modify the background color so that the background is not the default blue color at the next creation? Please write out the method that you think is correct.

2. How to track using Flex bulider3Program?

3. May I ask enterframe and timerevent?EventWhat is the difference? What are the specific usage methods and related scenarios?

4. What mechanism do you understand as3's event mechanism? What you think is true can be said.

5. What are the parameters in addeventlistener? Can you tell me how to use them?

6. How can I determine whether a font is a number?

7. I want to judge a character orObjectHow can we determine the type?

8. Do you know Internal controllers? Can you tell me the specific usage and occasions?

9. I don't want to execute anything at some point. That is to say, I want to stop the execution. Do you know what to do?

10. is undefined the same as null? can I tell the difference if it is different?

11. Do you know how to create a constant? Let's talk about how you created it.

12. How can I customize an event? Let's talk about the specific method.

13. How can I check the content of the Local Machine? For example, I want to know the operating system of the Local Machine, whether there are videos, etc.

14. How can I solve the security domain problem? If you do not know the security domain, you can bind it to the local machine.ImageAnd then put it on the server.

15. There are three basic numeric types: Number, Int, and uint. What is the difference.

16. parseint: This method is converted to the int type. Do you know what the second parameter of this method means?

17. The math. Round (), math. Floor () and math. Ceil () methods are rounded down. What is the difference?

18. Could you tell me oneArrayCan different types be put in?

19. var letters: array = ["A", "B", "C"]; I want to search for the 'B' character in this array. What should I do?

20. How to convert an array to a string and convert a string to an array?

21. What should I do if the created view is centered?

22. Do you know the concept of hierarchy? If you know how to switch the layers of two components?

23. Do you know loader, urlloader, and urlstreamLoadWhat are the differences between resource usage and usage?

24. How do I convert the localx and localy attributes of mouseevent into global coordinates?

25. I have a square image. I want to make it round. What can I do? The premise is to useFlexOrAs3

26. Can a newly created sprite be directly added to the UI container? If you cannot, please explain how to join.

27. How can I set a text box to a password box?

28. I want to enter only ABCD in the text box. What can I do? What if I want to input anything other than ABCD?

29. What does the condensewhite attribute mean in textinput?

30. The text of the file I just created is this is a text. I want to set the cursor on is. How can I set it?

31. How can I add a hyperlink in the text box?

32. What should I do if I want to get the font in the system?

33. substring (), substr (), slice (). What are the differences between the three types of parsing strings and their applicability?

34. var fruits:XML=
Apple

Orange

Pear

Watermelon

;
The following is a string. I now know that color is orange. I want to know the value of the Name node corresponding to this color. What should I do?

35. I would like to describe how to use flex to interact with the background and its applicability.

36. What should I do if I want to call the js method in flex?

37. I want to useJavaWhat should I do if script calls the ActionScript function?

38. filereference: several related events of this object

Components
1. I don't want to display the scroll bar in the container. What should I do?

2. How many different projects can be created in flex bulider3?

3. Do you know RSL? Please describe how RSL is used and what problems does RSL solve?

4. What is SWC used for? How can I create a SWC by myself?

5. All files generated by Flex are very large. How can I narrow down the files?

6. Why is the trace (Nan = Nan) Result true or false?

7. Warning: Unable to bind to property "onClassWhen itemrender is used by 'object' (class is not an ieventdispatcher), this warning is often reported. What should I do if I want to remove it?

8. MVC is now popular, butCodeSometimes most of them are written in mxml. What should I do if I want code separation?

9. What should I do if I want to re-write a square component in uicomponent? Please refer to the key part.

10. Several frequently-used data switching components, such as tabnavigator, all have creationpolicies. Do you know how to use these policies? What are the advantages and disadvantages?

11. I want to get the currently running URL in the application. How can I get it.

12. What is the difference between currenttarget and target in the event?

13. list several commonly used effects and explain the causes.

14. What is the difference between hbox, vbox, and canvas? Let's talk about the following points:

15. Could you tell meListSelect multiple lines of information. How can I do this?

16. There are several attributes in alert. What should I do if I want to set an image?

17. Have you set a style? What should I do if I want to set a style dynamically? What should I do if I want to set a style in the as code?

18. Can you tell me the life cycle of uicomponent? And related use cases?

19. Have you found any bugs in flex3? Could you please list them?

20. list several methods of Binding data objects in flex.

21. I have defined a component myself. I want to set several default values in the component attributes. How can I set them?

22. How to Use the calllater () method? Why?

23. Have you ever used the module method for project creation? What are their disadvantages? What are the disadvantages of component-based loading?

24. Currently, navigation is available on the web page. What should I pay attention to when using Flex for navigation? And how to do it?

25. I want to define the default image in a wrong image link. How can this problem be solved?

26. Try to write a custom verification component.

27. What does Tigger tiggerevent mean in the verification component and how to use it?

28. What is the difference between externalinterface and localconnection 2?

29. Have you ever used the flex test tool? Which tool is used and how to use it?

30. I can change the CSSCompileChengSWFWhy?

31. Use as3 to list the modes you have used.

32. What are the disadvantages of binding images to embed?

33. The titlewindow component is OK.DragI don't want him to drag it. What should I do?

34. Have you used profile? What are the advantages and disadvantages of this tool?

35. have you performed Performance Optimization on the flex front-end? What do you think is perfect?

36. Do you know about E4X? Do you have any advantages or disadvantages?

37. How many factors do you know affect performance?

38. How does one use jsonobject? And advantages and disadvantages?

39. Please list what you think is goodWebsiteOrBlog.

40. I am now giving you 1 million a flex project. What do you think are the factors for success?

 

 

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