Toast is just a quick - automatically disappering message to user.
In your example, as it alreadys states in TODO part, you are assumed
to assign a proper path to your "path" variable - for audi file.
Then you should check if provided path exists. If it is not, code
shows a quick Toast message to user and still sets path to media
player (mMediaPlayer.setDataSource(path); )
You may also need to change this part.
/**
* TODO: Set the path variable to a local audio
file path.
*/
path = "";
On Jan 6, 10:44 am, "Jonathan Parker" <[email protected]>
wrote:
> This is showing a dialog to the user to tell them to enter a path. You
> should handle if path = "" after they close the dialog as well.
>
> On Tue, Jan 6, 2009 at 7:54 PM, Honest <[email protected]> wrote:
>
> > I am learning API related to sound playing. I was understanding code
> > for it. The code is as below.
>
> > private void playAudio(Integer media) {
> > try {
> > switch (media) {
> > case LOCAL_AUDIO:
> > /**
> > * TODO: Set the path variable to a local audio
> > file path.
> > */
> > path = "";
> > if (path == "") {
> > // Tell the user to provide an audio file URL.
> > Toast.makeText(
> > MediaPlayerDemo_Audio.this,
> > "Please edit MediaPlayer_Audio
> > Activity, "
> > + "and set the path
> > variable to your audio file path."
> > + " Your audio file
> > must be stored on sdcard.",
> > Toast.LENGTH_LONG).show();
>
> > }
> > mMediaPlayer = new MediaPlayer();
> > mMediaPlayer.setDataSource(path);
> > mMediaPlayer.prepare();
> > mMediaPlayer.start();
> > break;
>
> > I could not understand the block of code after the condition if
> > (path=="").
>
> > What Toast.makeText() will do ? FRom my understanding it is not
> > intializing any value to path variable so at the end of that code
> > block the value of path will be ""(blank) after that there is a code
> > to play file by giving path but the value of path is blank so will
> > there be any exception ?
>
> > I hope some one will give reply.
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