CODEWITHSUNDEEP
android
Katty
Katty

Reputation: 1747

Android play music in a random amount of time

Now I can play a music in android. But I want to play this sound in a random amount of time between 2 to 8 seconds.How Can I randomly play it that for example the first time, it plays for 2 seconds, the next time 7 sec and so on? Can anybody help me?

Upvotes: 0

Views: 534

Answers (2)

Wottah
Wottah

Reputation: 320

Sound in android is played like this : 

AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
int mSoundID = mSoundPool.load(this, R.raw.sound1, 1);
            float lActualVolume = (float) audioManager
                    .getStreamVolume(AudioManager.STREAM_MUSIC);
            float lMaxVolume = (float) audioManager
                    .getStreamMaxVolume(AudioManager.STREAM_MUSIC);
            float lVolume = lActualVolume / lMaxVolume;
            // Is the sound loaded already?
            if (mSoundIsLoaded) {
                mSoundPool.play(mSoundID, lVolume, lVolume, 1, 0, 1f);

I think you have been given plenty of help to figure the random number part out. You will have to put the sound file in your assets/raw directory.

edit: I forgot to mention where the mSoundIsLoaded parameter came from. I set it when my sound has been loaded. I do this in my onCreate method. when the sound is loaded I set the boolean field called mSoundIsLoaded. I do this to prevent NullPointerExceptions when playing the sound the loading of the sound looks like this:

mSoundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0);
            mSoundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() {
                @Override
                public void onLoadComplete(SoundPool soundPool, int sampleId,
                        int status) {
                    mSoundIsLoaded = true;
                }
            });
            mSoundID = mSoundPool.load(this, R.raw.sound1, 1);

Upvotes: 2

Seshu Vinay
Seshu Vinay

Reputation: 13588

Go through these links:

Random number Generation

Media Player

Timer

you will get an idea.

Upvotes: 3

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