Github傳送門:OkUSB
OkUSB
一個(gè)簡(jiǎn)潔的Android串口通信框架肛宋。
功能簡(jiǎn)介
- 支持設(shè)置波特率
- 支持設(shè)置數(shù)據(jù)位
- 支持設(shè)置停止位
- 支持設(shè)置校驗(yàn)位
- 支持DTS和RTS
- 支持串口連接狀態(tài)監(jiān)聽(tīng)
用法簡(jiǎn)介
Gradle
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
compile 'com.github.zhouzhuo810:OkUSB:1.0.0'
}
具體用法
1.在AndroidManifest.xml中添加如下特性：
<uses-feature android:name="android.hardware.usb.host" />
在需要連接串口的Activity中添加：
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
android:resource="@xml/device_filter" />
2.在res文件夾創(chuàng)建xml文件夾鼻吮，新建device_filter.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- 要進(jìn)行通信的USB設(shè)備的供應(yīng)商ID（VID）和產(chǎn)品識(shí)別碼（PID）-->
<usb-device vendor-id="0403" product-id="6001" />
</resources>
3.前面都是準(zhǔn)備工作洽腺，這里才真正使用乎婿。
//初始化
usb = new USB.USBBuilder(this)
.setBaudRate(115200) //波特率
.setDataBits(8) //數(shù)據(jù)位
.setStopBits(UsbSerialPort.STOPBITS_1) //停止位
.setParity(UsbSerialPort.PARITY_NONE) //校驗(yàn)位
.setMaxReadBytes(20) //接受數(shù)據(jù)最大長(zhǎng)度
.setReadDuration(500) //讀數(shù)據(jù)間隔時(shí)間
.setDTR(false) //DTR enable
.setRTS(false) //RTS enable
.build();
//實(shí)現(xiàn)監(jiān)聽(tīng)連接狀態(tài)和數(shù)據(jù)收發(fā)满败。
usb.setOnUsbChangeListener(new USB.OnUsbChangeListener() {
@Override
public void onUsbConnect() {
Toast.makeText(MainActivity.this, "conencted", Toast.LENGTH_SHORT).show();
}
@Override
public void onUsbDisconnect() {
Toast.makeText(MainActivity.this, "disconencted", Toast.LENGTH_SHORT).show();
}
@Override
public void onDataReceive(byte[] data) {
tvResult.setText(new String(data, Charset.forName("GB2312")));
}
@Override
public void onUsbConnectFailed() {
Toast.makeText(MainActivity.this, "connect fail", Toast.LENGTH_SHORT).show();
}
@Override
public void onPermissionGranted() {
Toast.makeText(MainActivity.this, "permission ok", Toast.LENGTH_SHORT).show();
}
@Override
public void onPermissionRefused() {
Toast.makeText(MainActivity.this, "permission fail", Toast.LENGTH_SHORT).show();
}
@Override
public void onDriverNotSupport() {
Toast.makeText(MainActivity.this, "no driver", Toast.LENGTH_SHORT).show();
}
@Override
public void onWriteDataFailed(String error) {
Toast.makeText(MainActivity.this, "write fail" + error, Toast.LENGTH_SHORT).show();
}
@Override
public void onWriteSuccess(int num) {
Toast.makeText(MainActivity.this, "write ok " + num, Toast.LENGTH_SHORT).show();
}
});
4.發(fā)送數(shù)據(jù)
usb.writeData(byte[], 500);
5.如果是Activity楔壤，可以在onDestroy中調(diào)用如下代碼關(guān)閉串口拷况。
if (usb != null) {
usb.destroy();
}
License
Copyright 2017 zhouzhuo810
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
