如何通过蓝牙接收图像 [英] How to receive images via Bluetooth

问题描述

我想通过蓝牙接收图像并在图像视图"中显示该图像.我知道如何将图像从一个活动传递到另一活动，但是我不知道如何使用蓝牙接收图像.

I want to receive images via Bluetooth and display that image in Image View.I know how to pass image from one activity to another activity but i don't no how to receive images using Bluetooth.

推荐答案

Android框架通过Android蓝牙API提供对蓝牙功能的访问.这些API使应用程序可以无线连接到其他蓝牙设备，从而实现点对点和多点无线功能.

Android framework provides access to the Bluetooth functionality through the Android Bluetooth APIs. These APIs let applications wirelessly connect to other Bluetooth devices, enabling point-to-point and multipoint wireless features.

使用蓝牙API，Android应用程序可以执行以下操作:

Using the Bluetooth APIs, an Android application can perform the following:

• 扫描其他蓝牙设备
• 在本地蓝牙适配器中查询已配对的蓝牙设备
• 建立RFCOMM频道
• 通过服务发现连接到其他设备
• 与其他设备之间传输数据
• 管理多个连接

创建一个BluetoothSocket并连接到它:

Create a BluetoothSocket and connect to it:

BluetoothSocket socket = device.createRfcommSocketToServiceRecord(<your-device>.getUuids()[0].getUuid());
socket.connect();

听套接字(从设备获取数据)

Listen to the socket (Get data from the device)

InputStream inStream = socket.getInputStream();
while (inStream.available() > 0) {
    inStream.read(); // <-- data from device
}

写入套接字(将数据发送到设备)

Write to the socket (Send data to the device)

OutputStream outStream = socket.getOutputStream();
byte[] bytes = <some-data>
outStream.write(bytes);

，有关更多详细信息，请阅读此处的蓝牙Api文档

and for more details you can read Bluetooth Api Documentation here

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