android开发调用python脚本

android开发调用python脚本

一.环境准备

在官网下载最新的CLE for Android 开发包，其中包含示例工程和API文档。解压开发包，拷贝如下文件

http://www.srplab.com/cn/files/products.html

你可能会遇到的问题

1：注意so版本；版本都要一致，从开发包里复制粘贴；

2：注意so引入路径；as和ec是有区别的；

拷贝 starcore_android_rX.X.jar的arm64-v8a目录内容到工程的libs目录

拷贝starcore_android_rX.X.jar的到starcore_android_r3.7.dex、starcore_android_r3.7.jar到libs目录,

asset中的so在android.python.3.4.5.zip包和android.python.3.7.0.zip包解压出来的，

如下图：

libs的和assets里面的so；

二、编写Python代码

test.py文件内容如下：

def add(x,y) :

return x+y

calljava.py内容如下：

import imp  #test load path

def log(content):

JavaClass.d("formPython",content)

log("Hello Android,form python")

py_code.py内容如下：

import time

def get_time():

return time.time()

将py_code.py压缩为py_code.zip文件。将编写的Python源码放入Android 工程的assets目录，其中还要包含一些Python需要的环境及标准库(android.python.3.7.0里面arm64-v8a\lib-dynload中找到对应的so库)，见下图

三、编写Android相关代码，初始化CLE并调用Python

package com.cootf.mytest;

import android.app.Activity;

import android.app.ActivityManager;

import android.content.Context;

import android.content.Intent;

import android.net.ConnectivityManager;

import android.os.AsyncTask;

import android.os.Bundle;

import android.os.RemoteException;

import android.telephony.TelephonyManager;

import android.util.Log;

import com.srplab.www.starcore.StarCoreFactory;

import com.srplab.www.starcore.StarCoreFactoryPath;

import com.srplab.www.starcore.StarObjectClass;

import com.srplab.www.starcore.StarServiceClass;

import com.srplab.www.starcore.StarSrvGroupClass;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.Iterator;

import java.util.concurrent.TimeUnit;

import rx.Observable;

import rx.Observer;

import rx.Subscription;

import rx.android.schedulers.AndroidSchedulers;

public class MainActivity extends Activity {

private static final String TAG = MainActivity.class.getSimpleName();

private Subscription mSubscription;

ActivityManager mAm;

public StarSrvGroupClass SrvGroup;

private StarServiceClass Service;

private StarCoreFactory starcore;

private StarObjectClass python;

private File appFile ;

private String appLib ;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Log.d(TAG,"onCreate");

setContentView(R.layout.activity_main);

mAm = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);

Iterator iter =                mAm.getRunningTasks(100).iterator();

appFile = getApplicationContext().getFilesDir();  /*-- /data/data/packageName/files --*/

appLib = getApplicationInfo().nativeLibraryDir;

Intent intent = new Intent(this,ToolService.class);

startService(intent);

loadPy();

}

void loadPy(){

loadPyEnviroment();

initCle();

runPy();

}

private void loadPyEnviroment() {

//拷贝Python相关环境

File pythonLibFile = new File(appFile, "python3.7.zip");

if (!pythonLibFile.exists()) {

copyFile(this, "python3.7.zip");

copyFile(this, "_struct.cpython-37m.so");

copyFile(this, "binascii.cpython-37m.so");

copyFile(this, "time.cpython-34m.so");

copyFile(this, "zlib.cpython-37m.so");

}

// 拷贝Python 代码

copyFile(this, "calljava.py");

//copyFileFromSdcard(this, "test.py"); //验证读取sdcard里面的文件也可以

copyFile(this, "test.py");

try {

// 加载Python解释器

System.load(appLib + File.separator + "libpython3.7m.so");

// 除了将代码直接拷贝，还支持将代码压缩为zip包，通过Install方法解压到指定路径

InputStream dataSource = getAssets().open("py_code.zip");

StarCoreFactoryPath.Install(dataSource, appFile.getPath(),true );

} catch (Exception e) {

e.printStackTrace();

}

}

private void initCle() {

/*----init starcore----*/

StarCoreFactoryPath.StarCoreCoreLibraryPath = appLib;

StarCoreFactoryPath.StarCoreShareLibraryPath = appLib;

StarCoreFactoryPath.StarCoreOperationPath = appFile.getPath();

starcore = StarCoreFactory.GetFactory();

starcore._SRPLock();

Log.d(TAG,"zjy startcore:"+starcore);

SrvGroup = starcore._GetSrvGroup(0);

Log.d(TAG,"zjy SrvGroup:"+SrvGroup);

Service = SrvGroup._GetService("test","123");

Log.d(TAG,"zjy Service:"+Service);

if( Service == null ){ // the service has not been initialized

Log.d(TAG,"zjy Service is null");

Service = starcore._InitSimple("test", "123", 0, 0);

}else{

Log.d(TAG,"zjy SrvGroup:"+SrvGroup);

Service._CheckPassword(false);

}

Service._CheckPassword(false);

/*----run python code----*/

SrvGroup._InitRaw("python37", Service); // this place

python = Service._ImportRawContext("python", "", false, "");

StarObjectClass model = python._GetObject("pd");

python._Call("import", "sys");

StarObjectClass pythonSys = python._GetObject("sys");

StarObjectClass pythonPath = (StarObjectClass) pythonSys._Get("path");

pythonPath._Call("insert", 0, appFile.getPath()+ File.separator +"python3.7.zip");

pythonPath._Call("insert", 0, appLib);

pythonPath._Call("insert", 0, appFile.getPath());

starcore._SRPUnLock();

}

private void runPy() {

//调用Python代码

Service._DoFile("python", appFile.getPath() + "/py_code.py", "");

long time = python._Calllong("get_time");

Log.d(TAG, "form python time="+time);

Service._DoFile("python", appFile.getPath() + "/test.py", "");

int result = python._Callint("add", 5, 2);

Log.d(TAG, "result="+result);

python._Set("JavaClass", Log.class);

Service._DoFile("python", appFile.getPath() + "/calljava.py", "");

}

private void copyFile(Activity c, String Name) {

File outfile = new File(c.getFilesDir(), Name);

BufferedOutputStream outStream = null;

BufferedInputStream inStream = null;

try {

outStream = new BufferedOutputStream(new FileOutputStream(outfile));

inStream = new BufferedInputStream(c.getAssets().open(Name));

byte[] buffer = new byte[1024 * 10];

int readLen = 0;

while ((readLen = inStream.read(buffer)) != -1) {

outStream.write(buffer, 0, readLen);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

if (inStream != null) inStream.close();

if (outStream != null) outStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

private void copyFileFromSdcard(Activity c, String Name) {

File outfile = new File(c.getFilesDir(), Name);

BufferedOutputStream outStream = null;

BufferedInputStream inStream = null;

InputStream  redis = null;

try {

String sdpath =       Environment.getExternalStorageDirectory().getAbsolutePath();

String filePath = sdpath +File.separator + Name;

redis = new FileInputStream(new File(filePath));

outStream = new BufferedOutputStream(new FileOutputStream(outfile));

inStream = new BufferedInputStream(redis);

byte[] buffer = new byte[1024 * 10];

int readLen = 0;

while ((readLen = inStream.read(buffer)) != -1) {

outStream.write(buffer, 0, readLen);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

if (inStream != null) inStream.close();

if (outStream != null) outStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

@Override

protected void onStart() {

super.onStart();

Log.d(TAG,"onStart");

}

@Override

protected void onResume() {

super.onResume();

Log.d(TAG,"onResume");

}

@Override

protected void onPause() {

super.onPause();

Log.d(TAG,"onPause");

}

@Override

protected void onDestroy() {

super.onDestroy();

Log.d(TAG,"onDestroy X");

starcore._ModuleClear();

//        starcore._ModuleExit();

Log.d(TAG,"onDestroy E");

}

}

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