Example usage for android.os FileObserver startWatching

List of usage examples for android.os FileObserver startWatching

Introduction

In this page you can find the example usage for android.os FileObserver startWatching.

Prototype

public void startWatching() 

Source Link

Document

Start watching for events.

Usage

From source file:com.doplgangr.secrecy.FileSystem.Vault.java

public void startWatching(final Listeners.FileObserverEventListener mListener) {
    final android.os.FileObserver observer = new android.os.FileObserver(path) { // set up a file observer to watch this directory on sd card
        @Override// w  w w.  j  a v a 2  s .  c  o m
        public void onEvent(int event, String filename) {
            if (filename != null) {
                java.io.File file = new java.io.File(path, filename);
                if (fileFilter(file)) {
                    if (event == android.os.FileObserver.CREATE || event == android.os.FileObserver.MOVED_TO)
                        mListener.add(file);
                    if (event == android.os.FileObserver.DELETE || event == android.os.FileObserver.MOVED_FROM)
                        mListener.remove(file);
                }
            }
        }
    };
    observer.startWatching(); //START OBSERVING
}

From source file:com.sat.sonata.MenuActivity.java

private void processPictureWhenReady(final String picturePath) {
    final File pictureFile = new File(picturePath);

    if (pictureFile.exists()) {
        // The picture is ready; process it.
    } else {//from  w w  w  . j a v a  2  s . c om
        // The file does not exist yet. Before starting the file observer, you
        // can update your UI to let the user know that the application is
        // waiting for the picture (for example, by displaying the thumbnail
        // image and a progress indicator).

        final File parentDirectory = pictureFile.getParentFile();
        FileObserver observer = new FileObserver(parentDirectory.getPath()) {
            // Protect against additional pending events after CLOSE_WRITE is
            // handled.
            private boolean isFileWritten;

            @Override
            public void onEvent(int event, String path) {
                if (!isFileWritten) {
                    // For safety, make sure that the file that was created in
                    // the directory is actually the one that we're expecting.
                    File affectedFile = new File(parentDirectory, path);
                    isFileWritten = (event == FileObserver.CLOSE_WRITE && affectedFile.equals(pictureFile));

                    if (isFileWritten) {
                        stopWatching();

                        // Now that the file is ready, recursively call
                        // processPictureWhenReady again (on the UI thread).
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                processPictureWhenReady(picturePath);
                            }
                        });
                    }
                }
            }
        };
        observer.startWatching();
    }
}

From source file:com.glasshack.checkmymath.CheckMyMath.java

private void processPictureWhenReady(final String picturePath) {
    final File pictureFile = new File(picturePath);

    if (pictureFile.exists()) {
        // The picture is ready; process it.
        Log.e("Picture Path", picturePath);
        List<NameValuePair> postData = new ArrayList<NameValuePair>();
        postData.add(new BasicNameValuePair("file", picturePath));
        postData.add(new BasicNameValuePair("answer", "1"));
        postData.add(new BasicNameValuePair("submit", "Submit"));
        String postResp = post("http://54.187.58.53/glassmath.php", postData);
        evaluateResponse(postResp);/* w ww. ja  v a  2  s .  c  o  m*/
    } else {
        // The file does not exist yet. Before starting the file observer, you
        // can update your UI to let the user know that the application is
        // waiting for the picture (for example, by displaying the thumbnail
        // image and a progress indicator).

        final File parentDirectory = pictureFile.getParentFile();
        FileObserver observer = new FileObserver(parentDirectory.getPath(),
                FileObserver.CLOSE_WRITE | FileObserver.MOVED_TO) {
            // Protect against additional pending events after CLOSE_WRITE
            // or MOVED_TO is handled.
            private boolean isFileWritten;

            @Override
            public void onEvent(int event, String path) {
                if (!isFileWritten) {
                    // For safety, make sure that the file that was created in
                    // the directory is actually the one that we're expecting.
                    File affectedFile = new File(parentDirectory, path);
                    isFileWritten = affectedFile.equals(pictureFile);

                    if (isFileWritten) {
                        stopWatching();

                        // Now that the file is ready, recursively call
                        // processPictureWhenReady again (on the UI thread).
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                processPictureWhenReady(picturePath);
                            }
                        });
                    }
                }
            }
        };
        observer.startWatching();
    }
}

From source file:com.luyaozhou.recognizethisforglass.ViewFinder.java

private void processPictureWhenReady(final String picturePath) {
    final File pictureFile = new File(picturePath);
    //Map<String, String > result = new HashMap<String,String>();

    if (pictureFile.exists()) {
        // The picture is ready; process it.
        Bitmap imageBitmap = null;//from ww  w . j a va  2  s .  c  o  m
        try {
            //               Bundle extras = data.getExtras();
            //               imageBitmap = (Bitmap) extras.get("data");
            FileInputStream fis = new FileInputStream(picturePath); //get the bitmap from file
            imageBitmap = (Bitmap) BitmapFactory.decodeStream(fis);

            if (imageBitmap != null) {
                Bitmap lScaledBitmap = Bitmap.createScaledBitmap(imageBitmap, 1600, 1200, false);
                if (lScaledBitmap != null) {
                    imageBitmap.recycle();
                    imageBitmap = null;

                    ByteArrayOutputStream lImageBytes = new ByteArrayOutputStream();
                    lScaledBitmap.compress(Bitmap.CompressFormat.JPEG, 30, lImageBytes);
                    lScaledBitmap.recycle();
                    lScaledBitmap = null;

                    byte[] lImageByteArray = lImageBytes.toByteArray();

                    HashMap<String, String> lValuePairs = new HashMap<String, String>();
                    lValuePairs.put("base64Image", Base64.encodeToString(lImageByteArray, Base64.DEFAULT));
                    lValuePairs.put("compressionLevel", "30");
                    lValuePairs.put("documentIdentifier", "DRIVER_LICENSE_CA");
                    lValuePairs.put("documentHints", "");
                    lValuePairs.put("dataReturnLevel", "15");
                    lValuePairs.put("returnImageType", "1");
                    lValuePairs.put("rotateImage", "0");
                    lValuePairs.put("data1", "");
                    lValuePairs.put("data2", "");
                    lValuePairs.put("data3", "");
                    lValuePairs.put("data4", "");
                    lValuePairs.put("data5", "");
                    lValuePairs.put("userName", "zbroyan@miteksystems.com");
                    lValuePairs.put("password", "google1");
                    lValuePairs.put("phoneKey", "1");
                    lValuePairs.put("orgName", "MobileImagingOrg");

                    String lSoapMsg = formatSOAPMessage("InsertPhoneTransaction", lValuePairs);

                    DefaultHttpClient mHttpClient = new DefaultHttpClient();
                    //                        mHttpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY, CookiePolicy.R)
                    HttpPost mHttpPost = new HttpPost();

                    mHttpPost.setHeader("User-Agent", "UCSD Team");
                    mHttpPost.setHeader("Content-typURIe", "text/xml;charset=UTF-8");
                    //mHttpPost.setURI(URI.create("https://mi1.miteksystems.com/mobileimaging/ImagingPhoneService.asmx?op=InsertPhoneTransaction"));
                    mHttpPost.setURI(
                            URI.create("https://mi1.miteksystems.com/mobileimaging/ImagingPhoneService.asmx"));

                    StringEntity se = new StringEntity(lSoapMsg, HTTP.UTF_8);
                    se.setContentType("text/xml; charset=UTF-8");
                    mHttpPost.setEntity(se);
                    HttpResponse mResponse = mHttpClient.execute(mHttpPost, new BasicHttpContext());

                    String responseString = new BasicResponseHandler().handleResponse(mResponse);
                    parseXML(responseString);

                    //Todo: this is test code. Need to be implemented
                    //result = parseXML(testStr);
                    Log.i("test", "test:" + " " + responseString);
                    Log.i("test", "test: " + " " + map.size());

                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        // this part will be relocated in order to let the the server process picture
        if (map.size() == 0) {
            Intent display = new Intent(getApplicationContext(), DisplayInfoFailed.class);
            display.putExtra("result", (java.io.Serializable) iQAMsg);
            startActivity(display);
        } else {
            Intent display = new Intent(getApplicationContext(), DisplayInfo.class);
            display.putExtra("result", (java.io.Serializable) map);
            startActivity(display);

        }
    } else {
        // The file does not exist yet. Before starting the file observer, you
        // can update your UI to let the user know that the application is
        // waiting for the picture (for example, by displaying the thumbnail
        // image and a progress indicator).

        final File parentDirectory = pictureFile.getParentFile();
        FileObserver observer = new FileObserver(parentDirectory.getPath(),
                FileObserver.CLOSE_WRITE | FileObserver.MOVED_TO) {
            // Protect against additional pending events after CLOSE_WRITE
            // or MOVED_TO is handled.
            private boolean isFileWritten;

            @Override
            public void onEvent(int event, final String path) {
                if (!isFileWritten) {
                    // For safety, make sure that the file that was created in
                    // the directory is actually the one that we're expecting.
                    File affectedFile = new File(parentDirectory, path);
                    isFileWritten = affectedFile.equals(pictureFile);

                    if (isFileWritten) {
                        stopWatching();
                        // Now that the file is ready, recursively call
                        // processPictureWhenReady again (on the UI thread).
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                new LongOperation().execute(picturePath);
                            }
                        });
                    }
                }
            }
        };
        observer.startWatching();

    }

}