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1.有没有遇到过用手机进行DFU升级或者频繁操作数据之后之后，用本手机连接设备调用readChararistic()读取到的数据都是乱码的，然后改用其他手机连接该设备读取到的数据就是正常的；除非关掉再打开该手机的蓝牙读取到的数据才是正常的。
2.连接蓝牙后一段时间就断开，还挺频繁的，大概是什么原因的

At first, I found all scan callbacks were toasted timeout, however, some of them have already connected.
Then I found all write characteristic time callback were called.
Maybe time out callback is something wrong.
Perhaps handler went on without remove callbacks ?

For example every write operation is adding new callback instance while not removing old one.
So you will get additional callback call every operation.
First write = 1 callback call
Second write = 2 callback calls and etc.

一个是断开连接，liteBluetooth.closeBluetoothGatt();不知道调用的时机是？我在onDestroy中调用总会报“Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.bluetooth.BluetoothGatt.close()' on a null object reference”这个错误。

一个是刷新cache，不好意想问下这个作用是？我也有尝试调用过，也会报空指针的错误。

还望赐教，谢谢！！

我遇到部分小米手机写入数据的时候，写入有时候一直失败。

调试显示是 BluetoothGatt 中的executeReliableWrite() 方法中返回 false，导致写入失败。日志显示
BleException { code=101, description='Initiated Exception Occurred! '}

其他手机没有改问题。

示例程序报错
W/BluetoothGatt: Unhandled exception in callback
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

作者可否提供一个Demo例子呢？感觉无从下手……

你好，我看了你的例子，确实很不错，但是我有些不明白，例如
public String UUID_SERVICE = "6e400000-0000-0000-0000-000011112222";

public String UUID_CHAR_WRITE = "6e400001-0000-0000-0000-000011112222";
public String UUID_CHAR_READ = "6e400002-0000-0000-0000-000011112222";

public String UUID_DESCRIPTOR = "00002902-0000-1000-8000-00805f9b34fb";
public String UUID_DESCRIPTOR_WRITE = "00002902-0000-1000-8000-00805f9b34fb";
public String UUID_DESCRIPTOR_READ = "00002902-0000-1000-8000-00805f9b34fb";

这些参数是怎么获取的呢，第一次接触蓝牙相关的开发，真是有些蒙了，求大神详解。。。

I implemented onCharacteristicRead in ConnectListener, but it has never been called.

writeCharacteristic 这个发送成功以后，public void onSuccess(final BluetoothGattCharacteristic characteristic) 这个方法会执行好多次，打印的都是我发送的数据。
发送一次打印一次，发第二次的时候，会打印两次，发几次，打印几次

gitwiz的就做的不错，不过不更新了

Hi:
可以提供详细的demo吗？

FATAL EXCEPTION: main
Process: cn.com.sate.TPMS, PID: 10562
java.lang.SecurityException: Need BLUETOOTH_PRIVILEGED permission: Neither user 10110 nor current process has android.permission.BLUETOOTH_PRIVILEGED.
at android.os.Parcel.readException(Parcel.java:1620)
at android.os.Parcel.readException(Parcel.java:1573)
at android.bluetooth.IBluetoothGatt$Stub$Proxy.registerForNotification(IBluetoothGatt.java:1148)
at android.bluetooth.BluetoothGatt.setCharacteristicNotification(BluetoothGatt.java:1170)
at com.litesuits.bluetooth.conn.LiteBleConnector.setCharacteristicNotification(LiteBleConnector.java:295)
at com.litesuits.bluetooth.conn.LiteBleConnector.enableCharacteristicNotification(LiteBleConnector.java:215)
at com.litesuits.bluetooth.conn.LiteBleConnector.enableCharacteristicNotification(LiteBleConnector.java:205)
at cn.com.sate.TPMS.TPMSInterface.enableNotificationOfCharacteristic(TPMSInterface.java:141)
at cn.com.sate.TPMS.TPMSInterface$1$2.run(TPMSInterface.java:74)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5438)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)

在使用enableCharacteristicNotification方式时，报错 系统提示缺少BLUETOOTH_PRIVILEGED
这个问题该怎么解决呢？

你好，为什么总是会抛出这个问题呢，一旦抛出这个问题，接下来重新连接将自动多次进入回调....