My app send data (string or bytes) to another app copy via Bluetooth. I try to send big text or bytes[] and get this error:
FATAL EXCEPTION: Thread-8297
java.lang.ArrayIndexOutOfBoundsException: length=1024; index=1024
at com.ramimartin.multibluetooth.bluetooth.BluetoothRunnable.run(BluetoothRunnable.java:147)
at java.lang.Thread.run(Thread.java:841)
So, why? Code from line
BluetoothRunnable.java:147
is:
while(bytesRead == bufferSize && buffer[bufferSize] != 0) {
Full code:
int bufferSize = 1024;
int bytesRead;
byte[] buffer = new byte[bufferSize];
try {
if(this.mInputStream != null) {
bytesRead = this.mInputStream.read(buffer);
ByteBuffer bbuf = ByteBuffer.allocate(bytesRead);
if(bytesRead != -1) {
while(bytesRead == bufferSize && buffer[bufferSize] != 0) {
bbuf.put(buffer, 0, bytesRead);
if(this.mInputStream == null) {
return;
}
bytesRead = this.mInputStream.read(buffer);
}
bbuf.put(buffer, 0, bytesRead);
}
EventBus.getDefault().post(new BluetoothCommunicatorBytes(bbuf.array()));
continue;
}
} catch (IOException var8) {
Log.e(TAG, "===> Error Received Bytes IOException : " + var8.getMessage());
continue;
}
This should be:
while(bytesRead == bufferSize && buffer[bufferSize - 1] != 0)
Also there might be times when bufferSize is than 1.
And the way to read an array is:
int arr[] = new int[10];
The max index in the above case will be:
arr[9]
as index starts from 0
.