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MIT License
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package org.opencv.android; //w ww . ja v a 2s . com import java.io.File; import java.util.StringTokenizer; import org.opencv.core.Core; import org.opencv.engine.OpenCVEngineInterface; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.net.Uri; import android.os.IBinder; import android.os.RemoteException; import android.util.Log; class AsyncServiceHelper { public static boolean initOpenCV(String Version, final Context AppContext, final LoaderCallbackInterface Callback) { AsyncServiceHelper helper = new AsyncServiceHelper(Version, AppContext, Callback); if (AppContext.bindService(new Intent("org.opencv.engine.BIND"), helper.mServiceConnection, Context.BIND_AUTO_CREATE)) { return true; } else { AppContext.unbindService(helper.mServiceConnection); InstallService(AppContext, Callback); return false; } } protected AsyncServiceHelper(String Version, Context AppContext, LoaderCallbackInterface Callback) { mOpenCVersion = Version; mUserAppCallback = Callback; mAppContext = AppContext; } protected static final String TAG = "OpenCVManager/Helper"; protected static final int MINIMUM_ENGINE_VERSION = 2; protected OpenCVEngineInterface mEngineService; protected LoaderCallbackInterface mUserAppCallback; protected String mOpenCVersion; protected Context mAppContext; protected static boolean mServiceInstallationProgress = false; protected static boolean mLibraryInstallationProgress = false; protected static boolean InstallServiceQuiet(Context context) { boolean result = true; try { Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(OPEN_CV_SERVICE_URL)); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(intent); } catch(Exception e) { result = false; } return result; } protected static void InstallService(final Context AppContext, final LoaderCallbackInterface Callback) { if (!mServiceInstallationProgress) { Log.d(TAG, "Request new service installation"); InstallCallbackInterface InstallQuery = new InstallCallbackInterface() { private LoaderCallbackInterface mUserAppCallback = Callback; public String getPackageName() { return "OpenCV Manager"; } public void install() { Log.d(TAG, "Trying to install OpenCV Manager via Google Play"); boolean result = InstallServiceQuiet(AppContext); if (result) { mServiceInstallationProgress = true; Log.d(TAG, "Package installation started"); } else { Log.d(TAG, "OpenCV package was not installed!"); int Status = LoaderCallbackInterface.MARKET_ERROR; Log.d(TAG, "Init finished with status " + Status); Log.d(TAG, "Unbind from service"); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(Status); } } public void cancel() { Log.d(TAG, "OpenCV library installation was canceled"); int Status = LoaderCallbackInterface.INSTALL_CANCELED; Log.d(TAG, "Init finished with status " + Status); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(Status); } public void wait_install() { Log.e(TAG, "Instalation was not started! Nothing to wait!"); } }; Callback.onPackageInstall(InstallCallbackInterface.NEW_INSTALLATION, InstallQuery); } else { Log.d(TAG, "Waiting current installation process"); InstallCallbackInterface WaitQuery = new InstallCallbackInterface() { private LoaderCallbackInterface mUserAppCallback = Callback; public String getPackageName() { return "OpenCV Manager"; } public void install() { Log.e(TAG, "Nothing to install we just wait current installation"); } public void cancel() { Log.d(TAG, "Wating for OpenCV canceled by user"); mServiceInstallationProgress = false; int Status = LoaderCallbackInterface.INSTALL_CANCELED; Log.d(TAG, "Init finished with status " + Status); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(Status); } public void wait_install() { InstallServiceQuiet(AppContext); } }; Callback.onPackageInstall(InstallCallbackInterface.INSTALLATION_PROGRESS, WaitQuery); } } /** * URL of OpenCV Manager page on Google Play Market. */ protected static final String OPEN_CV_SERVICE_URL = "market://details?id=org.opencv.engine"; protected ServiceConnection mServiceConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { Log.d(TAG, "Service connection created"); mEngineService = OpenCVEngineInterface.Stub.asInterface(service); if (null == mEngineService) { Log.d(TAG, "OpenCV Manager Service connection fails. May be service was not installed?"); InstallService(mAppContext, mUserAppCallback); } else { mServiceInstallationProgress = false; try { if (mEngineService.getEngineVersion() < MINIMUM_ENGINE_VERSION) { Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INCOMPATIBLE_MANAGER_VERSION); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INCOMPATIBLE_MANAGER_VERSION); return; } Log.d(TAG, "Trying to get library path"); String path = mEngineService.getLibPathByVersion(mOpenCVersion); if ((null == path) || (path.length() == 0)) { if (!mLibraryInstallationProgress) { InstallCallbackInterface InstallQuery = new InstallCallbackInterface() { public String getPackageName() { return "OpenCV library"; } public void install() { Log.d(TAG, "Trying to install OpenCV lib via Google Play"); try { if (mEngineService.installVersion(mOpenCVersion)) { mLibraryInstallationProgress = true; Log.d(TAG, "Package installation statred"); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); } else { Log.d(TAG, "OpenCV package was not installed!"); Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.MARKET_ERROR); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.MARKET_ERROR); } } catch (RemoteException e) { e.printStackTrace();; Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INIT_FAILED); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INIT_FAILED); } } public void cancel() { Log.d(TAG, "OpenCV library installation was canceled"); Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INSTALL_CANCELED); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INSTALL_CANCELED); } public void wait_install() { Log.e(TAG, "Instalation was not started! Nothing to wait!"); } }; mUserAppCallback.onPackageInstall(InstallCallbackInterface.NEW_INSTALLATION, InstallQuery); } else { InstallCallbackInterface WaitQuery = new InstallCallbackInterface() { public String getPackageName() { return "OpenCV library"; } public void install() { Log.e(TAG, "Nothing to install we just wait current installation"); } public void cancel() { Log.d(TAG, "OpenCV library installation was canceled"); mLibraryInstallationProgress = false; Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INSTALL_CANCELED); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INSTALL_CANCELED); } public void wait_install() { Log.d(TAG, "Waiting for current installation"); try { if (!mEngineService.installVersion(mOpenCVersion)) { Log.d(TAG, "OpenCV package was not installed!"); Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.MARKET_ERROR); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.MARKET_ERROR); } else { Log.d(TAG, "Wating for package installation"); } Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); } catch (RemoteException e) { e.printStackTrace(); Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INIT_FAILED); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INIT_FAILED); } } }; mUserAppCallback.onPackageInstall(InstallCallbackInterface.INSTALLATION_PROGRESS, WaitQuery); } return; } else { Log.d(TAG, "Trying to get library list"); mLibraryInstallationProgress = false; String libs = mEngineService.getLibraryList(mOpenCVersion); Log.d(TAG, "Library list: \"" + libs + "\""); Log.d(TAG, "First attempt to load libs"); int status; if (initOpenCVLibs(path, libs)) { Log.d(TAG, "First attempt to load libs is OK"); String eol = System.getProperty("line.separator"); for (String str : Core.getBuildInformation().split(eol)) Log.i(TAG, str); status = LoaderCallbackInterface.SUCCESS; } else { Log.d(TAG, "First attempt to load libs fails"); status = LoaderCallbackInterface.INIT_FAILED; } Log.d(TAG, "Init finished with status " + status); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(status); } } catch (RemoteException e) { e.printStackTrace(); Log.d(TAG, "Init finished with status " + LoaderCallbackInterface.INIT_FAILED); Log.d(TAG, "Unbind from service"); mAppContext.unbindService(mServiceConnection); Log.d(TAG, "Calling using callback"); mUserAppCallback.onManagerConnected(LoaderCallbackInterface.INIT_FAILED); } } } public void onServiceDisconnected(ComponentName className) { mEngineService = null; } }; private boolean loadLibrary(String AbsPath) { boolean result = true; Log.d(TAG, "Trying to load library " + AbsPath); try { System.load(AbsPath); Log.d(TAG, "OpenCV libs init was ok!"); } catch(UnsatisfiedLinkError e) { Log.d(TAG, "Cannot load library \"" + AbsPath + "\""); e.printStackTrace(); result &= false; } return result; } private boolean initOpenCVLibs(String Path, String Libs) { Log.d(TAG, "Trying to init OpenCV libs"); if ((null != Path) && (Path.length() != 0)) { boolean result = true; if ((null != Libs) && (Libs.length() != 0)) { Log.d(TAG, "Trying to load libs by dependency list"); StringTokenizer splitter = new StringTokenizer(Libs, ";"); while(splitter.hasMoreTokens()) { String AbsLibraryPath = Path + File.separator + splitter.nextToken(); result &= loadLibrary(AbsLibraryPath); } } else { // If the dependencies list is not defined or empty. String AbsLibraryPath = Path + File.separator + "libopencv_java.so"; result &= loadLibrary(AbsLibraryPath); } return result; } else { Log.d(TAG, "Library path \"" + Path + "\" is empty"); return false; } } }