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Preparing to build the MP3 player

From: Flash CS3 Professional Beyond the Basics

Video: Preparing to build the MP3 player

Before we start creating our MP3 player let's take a look at what we have to work with. If you're following along and have access to the Exercise Files, find the Chapter 9 folder and then expand the Chapter 3 folder. Inside of the Chapter 3 folder you'll find a folder called start. There are three items inside of the Start folder, an FLA file and two folders. I want to first point your attention to the Songs folder. If you expand the Songs folder, you'll be able to see the songs we'll be working with in this chapter. break.mp3, chad.mp3 and dance.mp3.

Preparing to build the MP3 player

Before we start creating our MP3 player let's take a look at what we have to work with. If you're following along and have access to the Exercise Files, find the Chapter 9 folder and then expand the Chapter 3 folder. Inside of the Chapter 3 folder you'll find a folder called start. There are three items inside of the Start folder, an FLA file and two folders. I want to first point your attention to the Songs folder. If you expand the Songs folder, you'll be able to see the songs we'll be working with in this chapter. break.mp3, chad.mp3 and dance.mp3.

I'm going to collapse the Songs folder, and I'm going to open up 03_Viewing_FLA.fla. Let's take a look at how this file is set up. This file has two layers, Actions and Art. Some art on the stage and lot of elements in the Library. If you select the object on the stage you'll find that it's one Instance of a Movie Clip called mcPlayer with an Instance name of player_mc. Let's double-click the player on the stage to enter its Timeline.

Inside of the mcPlayer's Timeline, take a look at the different objects on the stage and note their Instance Names. At the top left there is a dynamic text field with an Instance Name of artist_txt, another Text field with an Instance Name of song_txt. The Volume slider on the right has an Instance of volume_mc, the left and right arrows have Instance names of prev_btn and next_btn respectively.

If you select the Play button, you'll see that it's an instance of a movie clip called mcPlayPause with an instance name of play_mc. Let's double-click this movie clip to enter its Timeline. Inside of the mcPlayPause movie clip there're two layers, Play and Pause. The Play layer holds the Play button. If you hide the Play layer you'll see this Pause button. Pause button has an Instance Name of pause_btn and the Play button has an Instance Name of play_btn. Now I'm going to return to the mcPlayer Movie Clip and select the Progress bar on the stage. Notice that it's an Instance Name of mcProgress with an Instance Name of progress_mc. I'm going to double-click the Progress bar on the stage and enter its Timeline.

This movie clip has two layers, dot and BG. The dot layer contains an Instance of a Movie Clip called drag_mc, and this is the Movie Clip that will show the progress as our mp3s are playing. We'll also be able to drag this Movie Clip and navigate through our songs. Let's return to the mcPlayer Movie Clip, and let's take a look inside of our Volume Movie Clip. I'm going to double-click the Volume bar on the top right of the stage to enter its Timeline.

This Movie Clip has three layers, lines, BG lines and BG. I'm going to deselect everything in the stage by clicking in the Pasteboard. I'm going to zoom in really close so you can see the art on the stage, pressings Z on my keyboard to select the Zoom tool and dragging the Zoom area right around the area that I want to look, close to the registration point of this Movie Clip and if you scrub the playhead you can see lines, that are later going to correspond to the volume of our songs. So there's a quick look at some of the Instances and how is this file set up. Let's go to scene one.

To return to the main Timeline select the first keyframe of the Actions layer and open the Actions panel by pressing Option+F9 on the Mac or F9 on the PC. Now this may seem overwhelming because there's a lot of code in here already, but we'll talk about it really fast. I'll explain what this code is and basically why it's prewritten for you. The first line of code specifies an Array called songs. This contains the path to each mp3 file that we'll be working with. We'll use the data inside of this Array to load the songs into the MP3 player.

And we have a variable called VolMC, that's the data type as a Movie Clip and we're just connecting it to play_mc.volume_mc. The reason why there's a variable here, volMC, we're setting equal to player_mc.volume_mc is so that we'd have a shorthand way to refer to this Movie Clip, this Movie Clip being player_mc.volume_mc. The rest of the variables in this file have the same function. The variable called playBtn is simply referring to player_mc.play_mc.play_btn, so instead of having to type the full path to the Play button we simply refer to our Play button variable.

So then we have our pauseBtn variable representing the Pause button, the nextBtn variable representing the Next button, the previous Btn variable representing the Previous button, artistTxt representing the Artist TextField, songTxt representing the Song TextField, progBar representing the Progress bar and progSlider representing the draggable Slider button for the Progress bar. Now that we've taken a look at our FLA file we can start creating our MP3 player.

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This video is part of

Image for Flash CS3 Professional Beyond the Basics
Flash CS3 Professional Beyond the Basics

79 video lessons · 25625 viewers

Todd Perkins
Author

 
Expand all | Collapse all
  1. 3m 30s
    1. Welcome
      1m 20s
    2. Getting the most from this training
      1m 20s
    3. Using the exercise files
      50s
  2. 15m 28s
    1. Managing digital assets
      4m 9s
    2. Creating custom keyboard shortcuts
      5m 1s
    3. Creating custom color swatches
      3m 41s
    4. Creating a custom template
      2m 37s
  3. 14m 38s
    1. Working with variables
      3m 41s
    2. Using functions
      3m 30s
    3. Working with events
      2m 11s
    4. Using event listeners
      2m 42s
    5. Working with arrays
      2m 34s
  4. 29m 41s
    1. Understanding dynamic text fields
      2m 37s
    2. Loading text from an external file
      6m 42s
    3. Reading HTML from a text field
      5m 29s
    4. Applying CSS with ActionScript
      7m 0s
    5. Applying external CSS to a text field
      7m 53s
  5. 45m 27s
    1. Masking dynamic text
      4m 59s
    2. Dragging the Scroll Bar
      7m 3s
    3. Calculating a scroll percent
      5m 20s
    4. Setting scroll boundaries
      4m 9s
    5. Connecting the ScrollBar to the text field
      2m 55s
    6. Easing the text with the ScrollBar
      4m 12s
    7. Scrolling the text with buttons
      2m 38s
    8. Animating the scrolling text with the buttons
      4m 26s
    9. Setting boundaries for the scrolling text
      4m 26s
    10. Easing the text using the buttons
      1m 37s
    11. Connecting the ScrollBar to the Scroll buttons
      3m 42s
  6. 20m 46s
    1. Organizing a complex object into layers
      1m 51s
    2. Duplicating MovieClips
      1m 29s
    3. Undocking the timeline
      1m 20s
    4. Animating a complex MovieClip
      4m 36s
    5. Creating an animated Hinge effect
      5m 13s
    6. Creating complex animations
      6m 17s
  7. 28m 1s
    1. Controlling objects with buttons
      4m 6s
    2. Understanding frame labels
      3m 25s
    3. Using buttons to navigate labeled frames
      2m 30s
    4. Nesting code within MovieClips
      5m 8s
    5. Adding sound to the application
      2m 34s
    6. Adding drag interactivity to the robot
      6m 1s
    7. Animating the dragged robot
      4m 17s
  8. 20m 3s
    1. Understanding components
      2m 30s
    2. Using components to setup a form
      3m 45s
    3. Setting up the form to send an email
      3m 38s
    4. Working with form variables
      6m 11s
    5. Skinning components
      3m 59s
  9. 27m 40s
    1. Using transparency in a video
      4m 16s
    2. Working with embedded video
      3m 38s
    3. Animating a VideoClip
      2m 53s
    4. Creating an advanced animation with video
      2m 40s
    5. Working with the bitmap data class
      3m 37s
    6. Working with the bitmap class
      1m 40s
    7. Copying the video to create a reflection
      1m 35s
    8. Reflecting the video
      2m 42s
    9. Enhancing a video reflection with a mask
      4m 39s
  10. 1h 38m
    1. Viewing the finished MP3 player
      1m 45s
    2. Understanding the project flow
      2m 52s
    3. Preparing to build the MP3 player
      5m 11s
    4. Understanding classes and packages
      5m 32s
    5. Creating the MP3 player class
      9m 59s
    6. Loading sounds from external files
      9m 20s
    7. Accessing ID3 tag information
      6m 11s
    8. Controlling sound playback with Play and Pause buttons
      11m 3s
    9. Changing tracks
      12m 1s
    10. Displaying the current volume
      9m 33s
    11. Changing the volume
      6m 40s
    12. Wiring the progress bar
      8m 4s
    13. Building the progress bar slider
      10m 4s
  11. 5m 36s
    1. Making Flash movies accessible
      1m 49s
    2. Adding a name and description to your Flash movie
      52s
    3. Accessibility and text fields
      2m 55s
  12. 12m 2s
    1. Understanding Flash Mobile
      35s
    2. Exploring Device Central
      1m 45s
    3. Updating Device Profiles
      1m 7s
    4. Creating a Flash file from Device Central
      2m 7s
    5. Creating and testing Flash Lite applications
      2m 48s
    6. Downloading the Flash Lite player for Windows Mobile
      1m 44s
    7. Getting a Flash Lite application onto your phone
      1m 56s
  13. 27s
    1. Goodbye
      27s

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