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android 5.1 connection fail

Is there any way to speed up the request queue when communicating with multiple devices? I'm sending data to 3 devices. Right now, it takes around 300ms to complete.

Just i connect the ble4.0 with my telephone(MI3 OS:6.0.1),I can't connected;
And the logcat shows that
"
D/BluetoothGatt(14678): onClientConnectionState() - status=133 clientIf=5 device=xx:xx:xx:xx:xx:xx
D/blelib(14678): onConnectionStateChange xx:xx:xx:xx:xxxx: status 133 newState 0
"
I thougth it‘s the same with the another issues,just about the “status=133”
The Gatt may be wrong with my telephone opera system, because I use the BLE Connection of System successfully.
(PS. I can't received the Broadcast by the action "BluetoothDevice.ACTION_FOUND" , Thanks for your guide, I use your lib to scan the BL successfully)
Now I have to use old api of BLE Connection.
Finally I think the "status=133" may be bug in some telephone.

I just want to use one characteristic to write command ,and receive the notification(response of from other characteristic. Or is there any way to log the event just like the lightblue app on ios platform?

It is a great project!
But I got a problem when I try it.
I can not send a message to the bluetooth device connected.
Can you help me?

在类BleService的processNextRequest()方法中，会在得到ret为true时startTimeoutThread()，但是在startTimeoutThread()之前就有可能执行clearTimeoutThread()，此时mRequestTimeout为null。

When disconnecting from a device you invoke gatt.disconnect() and immediately after gatt.close(). What this does is that it doesn't allow the bluetooth stack to send in time an onConnectionStateChange message to the GattCallback.

If you remove the gatt.close() command from the AndroidBle disconnect method and append it to the if (newState == BluetoothProfile.STATE_DISCONNECTED) path in onConnectionStateChange all goes well.

Often, before I modified the code, I would receive from time to time some NullPointerException from the onConnectionStateChange implementation. After the change the code runs ok.

A problem trouble me now, I can not send a broadcast to other Androids' device in ble, I find no method provided by Google SDK, can you help me?

It would be super helpful if you could update the README to include how to get started. Basic usage and some documentation would help a lot rather than letting people try reverse engineer the sample app.

用户反馈过来的，还有看日志里，明明是三星系统，为啥初始化时还是AndroidBle
SDK_INT=21
MODE=SM-G900V
appVersion=SM-G900V->5.0->v3.5.0->c92 ->BLE:true
App_Type=Remote
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
at android.os.Parcel.readException(Parcel.java:1546)
at android.os.Parcel.readException(Parcel.java:1493)
at android.bluetooth.IBluetoothGatt$Stub$Proxy.unregisterClient(IBluetoothGatt.java:905)
at android.bluetooth.BluetoothGatt.unregisterApp(BluetoothGatt.java:714)
at android.bluetooth.BluetoothGatt.close(BluetoothGatt.java:653)
at com.xtremeprog.sdk.ble.AndroidBle.disconnect(AndroidBle.java:247)
at com.xtremeprog.sdk.ble.BleService$1.run(BleService.java:202)
at java.lang.Thread.run(Thread.java:818)

If often and quickly call to connect(+send command)/disconnet methods we can get status = 113 in onConnectionStateChange callback(it's so bad). And library has another problems with similar tests . All advise send ble commands in mainThread . This solution can help . What do you think about it ?