MACROMEDIA FLASH 8-FLASH Spécifications Page 103
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Write a function 103
Write a function
A function is a script that you can use repeatedly to perform a specific task.
You can pass parameters to a function, and it can return a value. In this
lesson, every time your user clicks the Calculate button, a function will run
that multiplies data in the input text fields and returns values in the
dynamic text fields. You’ll write that function now.
1. In the Script pane, with the insertion point after the ActionScript that
reads
qty3_txt.text = 0;, press Enter (Windows) or Return
(Macintosh) twice and type the following comment:
//Calculate quantity times price.
2.
Press Enter or Return and type the following to create a function that
runs when the playhead enters Frame 1, where you’re attaching
the script:
this.onEnterFrame = function (){
3.
Type the following ActionScript to specify how the function should
multiply the values in the input text fields for the airplane:
price1_txt.text = Number (qty1_txt.text)*Number
(priceCD);
price1_txt
is the instance name that you gave to the top price input
text field on the Stage.
.text defines the text that should appear in the text field, which is the
number of parts multiplied by the cost of the part: the $320 that you
set as the value for the
priceCD variable.
4. Press Enter or Return, and type the following two lines:
price2_txt.text = Number (qty2_txt.text)*Number
(priceShocks);
price3_txt.text = Number (qty3_txt.text)*Number
(priceCover);
};
Your function should appear as follows:
//Calculate quantity times price.
this.onEnterFrame = function (){
price1_txt.text = Number (qty1_txt.text)*Number
(priceCD);
price2_txt.text = Number (qty2_txt.text)*Number
(priceShocks);
price3_txt.text = Number (qty3_txt.text)*Number
(priceCover);
};
- Flash Tutorials 1
- Contents 3
- 4Contents 4
- Contents 5 5
- 6Contents 6
- Contents 7 7
- 8Contents 8
- Contents 9 9
- 10 Contents 10
- Introduction 11
- 12 Introduction 12
- Basic Tasks: Create a 13
- Document 13
- FLA files for your reference 14
- Undo changes 16
- View the Timeline 16
- Change background and Stage 17
- Change your view of the Stage 18
- View the Library panel 18
- Add graphics to the Stage 19
- Add video 19
- View object properties 20
- Add video control behaviors 20
- Test the document 23
- Find help 23
- ■ View object properties 24
- ■ Add video control behaviors 24
- ■ Find help 24
- Basic Tasks: Creating a 25
- Open the finished FLA file 27
- Creating a new document 29
- Changing document properties 30
- Importing graphics 33
- Importing graphics 35 35
- Introducing layers and the 36
- Creating a new layer 38
- Importing to a layer 39
- Summary 41 41
- Adding text 46
- Adding text 47 47
- Creating a symbol 49
- Creating a button 56
- Creating a button 57 57
- Writing simple actions 59
- ■ Create text 62
- ■ Create symbols 62
- ■ Create an animation 62
- ■ Create buttons 62
- ■ Write ActionScript 62
- Open the finished project 65
- Review the completed project 66
- Close the completed project 66
- Considering your audience 67
- Inserting Flash on a 71
- Dreamweaver site 71
- Using roundtrip editing 73
- Checking for Flash Player 74
- Checking for Flash Player 75 75
- Summary 77 77
- Flash Content 79
- Provide a document title and 81
- Specify that screen readers 83
- Index text box 85
- About testing your document 87
- Basic Tasks: Work with 89
- Select a layer 91
- Hide and show layers 92
- Lock a layer 92
- Add and name a layer 93
- Change the order of layers 93
- Organize layers in a folder 94
- Add a mask layer 94
- Add a guide layer 95
- Delete a layer 96
- Basic Tasks: Create an 97
- Application 97
- Copy input and dynamic text 99
- Name text fields 99
- Add and name a Button 100
- Write a function 103
- Test your application 105
- Basic Tasks: Use Layout 107
- Set up your workspace 108
- Use guides to align an object 108
- Change the Stage size 109
- Resize objects to match the 110
- Stage size 110
- Align an object using the 111
- Snap objects to each other 113
- Summary 115 115
- Basic Tasks: Create 117
- Symbols and Instances 117
- About creating symbols 118
- Create a graphic symbol 119
- Modify a symbol 121
- Create a movie clip symbol 122
- Summary 123 123
- Basic Tasks: Add Button 125
- Animation and Navigation 125
- Create a button from grouped 127
- Name a button instance 127
- Align buttons 129
- Add an action to a button 131
- Add navigation to a button 132
- Test the SWF file 133
- CHAPTER 11 135
- View screen properties 138
- Add and name a slide 141
- Select and move slides 141
- Add content to a new slide 142
- Add transition behaviors 142
- Test your presentation 143
- Creating Graphics: Draw 145
- Select a shape tool 146
- Select options to create a 147
- Draw a polygon 147
- Rotate the shape 148
- Use the cutout feature 148
- Transform the shape of your 149
- Copy strokes 149
- Draw with the Line tool 150
- Group the shape 151
- Creating Graphics: Create a 153
- Timeline Animation 153
- Create a motion tween 155
- Create a shape tween 156
- Change the speed of the 158
- Creating Graphics: Making 161
- Animations with Easing 161
- (Flash Professional only) 161
- Open the authoring document 163
- Review the completed FLA file 164
- Open the starter document 165
- Open the starter document 167 167
- Use easing controls 168
- Open the starter document 169 169
- Open the starter document 171 171
- Open the starter document 173 173
- Open the starter document 175 175
- Test the application 176
- Creating Graphics: 177
- Applying Gradients 177
- Apply a linear gradient 181
- Create a radial gradient 183
- Create a radial gradient 185 185
- Apply the finishing touches 187
- (Flash Professional Only) 193
- Review your task 194
- Apply filters and blends 195
- Apply a filter 196
- Apply filters and blends 197 197
- Text: Add Text to a 199
- ■ For Font, select Arial 201
- ■ For Font Size, enter 13 201
- Select device fonts 203
- Add an input text field 203
- Copy a text field 204
- Create a dynamic text field 205
- Specify format options 206
- View ActionScript for the 207
- Check spelling 208
- ActionScript: Use Script 209
- Assist mode 209
- Close the completed FLA file 212
- Script Assist mode 213
- ActionScript: Write 225
- Scripts 225
- Name button instances 228
- Initialize the document 228
- Apply ActionScript syntax 229
- Add comments to ActionScript 230
- Write a function for a button 231
- Copy and modify a button 232
- Check syntax and test your 233
- ActionScript: Add 235
- Interactivity 235
- Add a scene 237
- Move between scenes 238
- Control the document with a 238
- Link a button to a scene 239
- Add navigation to return to 239
- Play a movie clip 240
- Play a movie clip 241 241
- Unload the movie clip 242
- Test your document 243
- ■ Create a new scene 244
- Conditional Logic and Send 245
- Add an error message 248
- Add a confirmation message 249
- Add a stop() action 249
- Submit button 251
- Pass data out of a SWF file 252
- Test your SWF file 253
- ActionScript: Work with 255
- Objects and Classes 255
- Create an object from a class 257
- Modify your script 258
- Create a custom class 259
- Build a custom class 261
- Create two objects from the 262
- Product class 262
- Instance 263
- 11. Test the Shape.fla file 266
- Data Integration: Overview 267
- Data Integration: Using the 269
- Macromedia Tips 269
- Web Service 269
- ComboBox 274
- <products_cb> 274
- Timesheet (Flash 277
- Professional Only) 277
- Create the user interface 278
- Create the user interface 279 279
- Create the user interface 281 281
- Create the user interface 283 283
- Create the user interface 285 285
- Edit the data 286
- Update the Timesheet 287
- Update the timesheet 288
- Update the timesheet 289 289
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