/*
?*?Copyright?2009?Cedric?Priscal
?*?
?*?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.?
?*/

package?android_serialport_api;

import?java.io.File;
import?java.io.FileDescriptor;
import?java.io.FileInputStream;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;

import?android.util.Log;

public?class?SerialPort?{

	private?static?final?String?TAG?=?“SerialPort“;

	/*
	?*?Do?not?remove?or?rename?the?field?mFd:?it?is?used?by?native?method?close（）;
	?*/
	private?FileDescriptor?mFd;
	private?FileInputStream?mFileInputStream;
	private?FileOutputStream?mFileOutputStream;

	public?SerialPort（File?device?int?baudrate?int?flags）?throws?SecurityException?IOException?{

		/*?Check?access?permission?*/
		if?（!device.canRead（）?||?!device.canWrite（））?{
			try?{
				/*?Missing?read/write?permission?trying?to?chmod?the?file?*/
				Process?su;
				su?=?Runtime.getRuntime（）.exec（“/system/bin/su“）;
				String?cmd?=?“chmod?666?“?+?device.getAbsolutePath（）?+?“\n“
						+?“exit\n“;
				su.getOutputStream（）.write（cmd.getBytes（））;
				if?（（su.waitFor（）?!=?0）?||?!device.canRead（）
						||?!device.canWrite（））?{
					throw?new?SecurityException（）;
				}
			}?catch?（Exception?e）?{
				e.printStackTrace（）;
				throw?new?SecurityException（）;
			}
		}

		mFd?=?open（device.getAbsolutePath（）?baudrate?flags）;
		if?（mFd?==?null）?{
			Log.e（TAG?“native?open?returns?null“）;
			throw?new?IOException（）;
		}
		mFileInputStream?=?new?FileInputStream（mFd）;
		mFileOutputStream?=?new?FileOutputStream（mFd）;
	}

	//?Getters?and?setters
	public?InputStream?getInputStream（）?{
		return?mFileInputStream;
	}

	public?OutputStream?getOutputStream（）?{
		return?mFileOutputStream;
	}

	//?JNI
	private?native?static?FileDescriptor?open（String?path?int?baudrate?int?flags）;
	public?native?void?close（）;
	static?{
		System.loadLibrary（“serial_port“）;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-09-08?15:53??動態依賴庫\
?????目錄???????????0??2019-09-08?15:53??動態依賴庫\android_serialport_api\
?????文件????????2409??2017-08-30?10:22??動態依賴庫\android_serialport_api\SerialPort.java
?????文件????????3438??2012-10-03?03:15??動態依賴庫\android_serialport_api\SerialPortFinder.java
?????目錄???????????0??2019-09-08?15:53??動態依賴庫\jni\
?????文件?????????809??2019-09-06?19:46??動態依賴庫\jni\Android.mk
?????文件??????????25??2019-09-08?11:11??動態依賴庫\jni\Application.mk
?????文件??????????90??2012-10-03?03:15??動態依賴庫\jni\gen_SerialPort_h.sh
?????文件????????4589??2012-10-03?03:15??動態依賴庫\jni\SerialPort.c
?????文件?????????745??2012-10-03?03:15??動態依賴庫\jni\SerialPort.h
?????目錄???????????0??2019-09-08?15:52??動態依賴庫\libs\
?????目錄???????????0??2019-09-08?15:52??動態依賴庫\libs\armeabi\
?????文件??????123292??2019-09-08?10:42??動態依賴庫\libs\armeabi\libserial_port.so
?????目錄???????????0??2019-09-08?15:52??動態依賴庫\libs\armeabi_v7a\
?????文件??????123292??2019-09-08?10:42??動態依賴庫\libs\armeabi_v7a\libserial_port.so
?????目錄???????????0??2019-09-08?15:52??動態依賴庫\libs\x86\
?????文件??????123292??2019-09-08?10:42??動態依賴庫\libs\x86\libserial_port.so
?????目錄???????????0??2019-09-08?15:52??動態依賴庫\libs\x86_64\
?????文件??????123292??2019-09-08?10:42??動態依賴庫\libs\x86_64\libserial_port.so