public class MainActivity extends Activity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		// Sentry will look for uncaught exceptions from previous runs and send them		
		Sentry.init(this, "YOUR-SENTRY-DSN");

	}

}
		

Sentry.captureMessage("Something significant may have happened");

try {
	JSONObject obj = new JSONObjet();
} catch (JSONException e) { 
	Sentry.captureException(e);
}

Sentry.captureEvent(new Sentry.SentryEventBuilder()
	.setMessage("Being awesome")
	.setCulprit("Josh Holtz")
	.setTimestamp(System.currentTimeMillis())
);

// CALL THIS BEFORE CALLING Sentry.init
// Sets a listener to intercept the SentryEventBuilder before 
// each capture to set values that could change state
Sentry.setCaptureListener(new SentryEventCaptureListener() {

	@Override
	public SentryEventBuilder beforeCapture(SentryEventBuilder builder) {
		
		// Needs permission - <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
		ConnectivityManager connManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
		NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

		// Sets extra key if wifi is connected
		try {
			builder.getExtra().put("wifi", String.valueOf(mWifi.isConnected()));
			builder.getTags().put("tag_1", "value_1");
		} catch (JSONException e) {}
		
		return builder;
	}
	
});

Sentry.init(this, "http://your-base-url.com" "YOUR-SENTRY-DSN");