Add to your app module `build.gradle` dependencies (adjust versions for Media3 / ExoPlayer you use):

```gradle
implementation 'com.android.volley:volley:1.2.1'
implementation 'com.google.android.exoplayer:exoplayer:2.19.1'
implementation 'com.google.android.exoplayer:exoplayer-hls:2.19.1'
implementation 'com.google.android.exoplayer:exoplayer-ui:2.19.1'
// Or migrate to androidx.media3:* — then update imports in SecureStreamActivity.
```

Register `SecureStreamActivity` in `AndroidManifest.xml` and add `INTERNET` permission.
