问题描述
Android 低功耗蓝牙 API 实现了 1 种连接设备的方法 connectGatt() 但有 2 种关闭连接的方法 disconnect() 和 close().
Android Bluetooth Low Energy API implements 1 method to connect to the device connectGatt() but 2 methods to close the connection disconnect() and close().
文档说:
disconnect():断开已建立的连接，或取消连接尝试目前正在进行中.
disconnect(): Disconnects an established connection, or cancels a connection attempt currently in progress.
close():应用程序应在完成后尽早调用此方法这个 GATT 客户端.
close(): Application should call this method as early as possible after it is done with this GATT client.
的源代码BluetoothGatt.java 显示 close() 取消注册应用程序，并且 disconnect() 断开客户端连接.然而，它并没有说明这实际上意味着什么.我的意思是，如果只有 1 种方法可以连接到客户端，为什么有 2 种方法可以关闭/断开连接?
The source code of BluetoothGatt.java shows that close() unregisters the application and disconnect() disconnect the client. However it does not say what that actually means. I mean, if there is only 1 way to connect to the client, why there are 2 ways to close/disconnect the connection?
推荐答案
使用 disconnect() 您可以稍后调用 connect() 并继续该循环.
With disconnect() you can later call connect() and continue with that cycle.
一旦你调用 close() 你就完成了.如果您想再次连接，则必须再次调用 BluetoothDevice 上的 connectGatt()；close() 将释放 BluetoothGatt 持有的所有资源.
Once you call close() you are done. If you want to connect again you will have to call connectGatt() on the BluetoothDevice again; close() will release any resources held by BluetoothGatt.
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