FLash notepad [mongodobject]

10. [Flash basic theory 13] FL notepad [mongodobject]
The SharedObject (Local Shared Object) function is similar to a Cookie in a webpage.

Allows the designer to store a small amount of information on the client.

Ideas:

1. Use a script to create two text boxes and two buttons;

2. The two text boxes are title_txt and content_txt respectively for input and display information;
3. The two buttons are save_btn: save the text content, and load_btn: read the text content.





Add the following code to the first frame:
// ================================ Create two text boxes =====
// Create and set the title text box
Var t_f: TextFormat = new TextFormat ();
T_f.size = 20;
_ Root. createTextField ("title_txt", 1, 10, 10,150, 25 );
With (title_txt ){
Border = true;
BorderColor = 0x0;
Type = "input ";
SetNewTextFormat (t_f );
}
// Create and set the content text box
_ Root. createTextField ("content_txt", 2, 10, 40,150,150 );
With (content_txt ){
Border = true;
BorderColor = 0x0;
Type = "input ";
WordWrap = true;
SetNewTextFormat (t_f );
}

// ================================== Create two buttons =====
// Storage button
_ Root. createEmptyMovieClip ("save_btn", 3 );
Save_btn.createTextField ("txt", 0, 0, 0, 40, 20 );
Save_btn.txt.text = "Save ";
Save_btn. _ x = 50;
Save_btn. _ y = 200;
Save_btn.onRelease = function (){
Var so: export dobject = export dobject. getLocal ("log_save ");
// Connect to the local Shared Object. Note that this is a static method.
So. data. title_txt = title_txt.text;
So. data. content_txt = content_txt.text;
// Store the data whose title and content are log_save
};
// Read button
_ Root. createEmptyMovieClip ("load_btn", 4 );
Load_btn.createTextField ("txt", 0, 0, 0, 40, 20 );
Load_btn.txt.text = "Load ";
Load_btn. _ x = 100;
Load_btn. _ y = 200;
Load_btn.onRelease = function (){
Var so: export dobject = export dobject. getLocal ("log_save ");
// Connect to the local Shared Object. Note that this is a static method.
Title_txt.text = so. data. title_txt;
Content_txt.text = so. data. content_txt;
// Read the log_save data to the title and content text box. The two statements are the opposite of the storage operation.
};





Flash Charging: Brief Introduction to Concepts and common methods of mongodobject
1. Role of SharedObject: permanently store the shared object on the user's computer. In Flash, we can use functions such as user login, saving diaries, and even saving game disks.



2. SharedObject reference (getLocal ):

Note that the getLocal () method is a static method. The Declaration method is as follows:
Var so: export dobject = export dobject. getLocal ("kookie ");



3. Stored dobject storage (data): The following example implements a simple storage of personal information.
Var my_so: export dobject = export dobject. getLocal ("savedData ");
My_so.data.name = "Alan"
My_so.data.sex = "male"
My_so.data.age = "21"



4. Partial dobject partial reading (data): The following example reads personal information
Var my_so: export dobject = export dobject. getLocal ("savedData ");
Trace (my_so.data.name)
Trace (my_so.data.sex)
Trace (my_so.data.age)



5. Read all dobject (data): Read all attribute objects in combination with the for... in statement
Var my_so: export dobject = export dobject. getLocal ("savedData ");
For (var prop in my_so.data ){
Trace (prop + ":" + my_so.data [prop]);
}



6. Empty dobject clear data (clear ):
Var my_so: export dobject = export dobject. getLocal ("savedData ");
My_so.clear ();