}
/**
- * @return a new {@link AudioRecord} instance initialized with all the parameters set
- * on this <code>Builder</code>
+ * @return a new {@link AudioRecord} instance successfully initialized with all
+ * the parameters set on this <code>Builder</code>.
* @throws UnsupportedOperationException if the parameters set on the <code>Builder</code>
- * were incompatible, or if they are not supported by the device.
+ * were incompatible, or if they are not supported by the device,
+ * or if the device was not available.
*/
public AudioRecord build() throws UnsupportedOperationException {
if (mFormat == null) {
mBufferSizeInBytes = mFormat.getChannelCount()
* mFormat.getBytesPerSample(mFormat.getEncoding());
}
- return new AudioRecord(mAttributes, mFormat, mBufferSizeInBytes, mSessionId);
+ final AudioRecord record = new AudioRecord(
+ mAttributes, mFormat, mBufferSizeInBytes, mSessionId);
+ if (record.getState() == STATE_UNINITIALIZED) {
+ // release is not necessary
+ throw new UnsupportedOperationException("Cannot create AudioRecord");
+ }
+ return record;
} catch (IllegalArgumentException e) {
throw new UnsupportedOperationException(e.getMessage());
}