Example usage for android.content Context getContentResolver

Introduction

In this page you can find the example usage for android.content Context getContentResolver.

Prototype

public abstract ContentResolver getContentResolver();

Source Link

Document

Return a ContentResolver instance for your application's package.

Usage

From source file:Main.java

/** @see http://stackoverflow.com/questions/477572/android-strange-out-of-memory-issue */
public static int getSampleSize(Context context, Uri uri, float maxSize) {
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;/*from w  ww. j a  v a2  s. c o m*/
    if (uri.getScheme().equals(ContentResolver.SCHEME_CONTENT)) {
        try {
            InputStream stream = context.getContentResolver().openInputStream(uri);
            BitmapFactory.decodeStream(stream, null, options);
            stream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else
        BitmapFactory.decodeFile(uri.getPath(), options);
    int longSide = Math.max(options.outHeight, options.outWidth);
    return getSampleSize(longSide, maxSize);
}

From source file:com.dahl.brendan.wordsearch.view.IOService.java

private static void writeFile(Context context, File file, boolean overwrite) {
    if (!file.exists() || overwrite) {
        Cursor cursor = context.getContentResolver().query(Word.CONTENT_URI, new String[] { Word.WORD }, null,
                null, null);/* ww w .ja  v a  2  s  .  c  o  m*/
        JSONArray array = new JSONArray();
        if (cursor.moveToFirst()) {
            while (!cursor.isAfterLast()) {
                array.put(cursor.getString(0));
                cursor.moveToNext();
            }
        }
        try {
            file.getParentFile().mkdirs();
            file.createNewFile();
            BufferedWriter out = new BufferedWriter(new FileWriter(file));
            out.write(array.toString());
            out.close();
        } catch (IOException e) {
            Log.e(LOGTAG, "write failed", e);
        }
    }
}

From source file:Main.java

/**
 * Adds the saved image to the gallery//from  w  w w.ja  v a 2s  .  c o  m
 *
 * From: http://stackoverflow.com/a/20859733
 * @param filePath
 * @param context
 */
public static void addImageToGallery(final String filePath, final Context context) {

    ContentValues values = new ContentValues();

    values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis());
    values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
    values.put(MediaStore.MediaColumns.DATA, filePath);

    context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
}

From source file:Main.java

public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
    Cursor cursor = null;/*from  w  w w  .  j a v  a  2  s. com*/
    final String column = "_data";
    final String[] projection = { column };
    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

From source file:com.dahl.brendan.wordsearch.view.IOService.java

private static void readFile(Context context, File file, boolean overwrite) {
    if (file.canRead()) {
        if (overwrite) {
            context.getContentResolver().delete(Word.CONTENT_URI, "1", null);
        }//from w  ww. j  av a  2  s  .c o  m
        try {
            byte[] buffer = new byte[(int) file.length()];
            BufferedInputStream f = new BufferedInputStream(new FileInputStream(file));
            f.read(buffer);
            JSONArray array = new JSONArray(new String(buffer));
            List<ContentValues> values = new LinkedList<ContentValues>();
            for (int i = 0; i < array.length(); i++) {
                Log.v(LOGTAG, array.getString(i));
                ContentValues value = new ContentValues();
                value.put(Word.WORD, array.getString(i));
                values.add(value);
            }
            context.getContentResolver().bulkInsert(Word.CONTENT_URI, values.toArray(new ContentValues[0]));
        } catch (IOException e) {
            Log.e(LOGTAG, "IO error", e);
        } catch (JSONException e) {
            Log.e(LOGTAG, "bad input", e);
        }
    }
}

From source file:Main.java

public static boolean setMediaVolume(Context context, int mediaVloume) {
    if (mediaVloume < 0) {
        mediaVloume = 0;/*from  ww  w .  ja  va 2s  .  com*/
    } else if (mediaVloume > 15) {
        mediaVloume = mediaVloume % 15;
        if (mediaVloume == 0) {
            mediaVloume = 15;
        }
    }
    return Settings.System.putInt(context.getContentResolver(), "volume_music", mediaVloume);
    //            Settings.System.VOLUME_MUSIC, mediaVloume);
}

From source file:com.amazonaws.utilities.Util.java

/**
 * Copies the data from the passed in Uri, to a new file for use with the
 * Transfer Service/*  w  ww  .j a v  a 2  s. c  o m*/
 * 
 * @param context
 * @param uri
 * @return
 * @throws IOException
 */
public static File copyContentUriToFile(Context context, Uri uri) throws IOException {
    InputStream is = context.getContentResolver().openInputStream(uri);
    File copiedData = new File(context.getDir("SampleImagesDir", Context.MODE_PRIVATE),
            UUID.randomUUID().toString());
    copiedData.createNewFile();

    FileOutputStream fos = new FileOutputStream(copiedData);
    byte[] buf = new byte[2046];
    int read = -1;
    while ((read = is.read(buf)) != -1) {
        fos.write(buf, 0, read);
    }

    fos.flush();
    fos.close();

    return copiedData;
}

From source file:Main.java

/**
 * Query the server app to get the file's display name.
 *//*  w  w w.j a  v  a  2  s  . c o  m*/
public static String getUriFileName(Context context, Uri uri) {
    if (uri == null) {
        return null;
    }

    if (uri.getScheme().equals("file")) {
        return uri.getLastPathSegment();
    }

    if (uri.getScheme().equals("content")) {
        Cursor returnCursor = context.getContentResolver().query(uri, null, null, null, null);

        //Get the column index of the data in the Cursor,
        //move to the first row in the Cursor, get the data, and display it.
        int name_index = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        //int size_index = returnCursor.getColumnIndex(OpenableColumns.SIZE);

        if (name_index < 0) {
            return null;
        }

        returnCursor.moveToFirst();

        //return returnCursor.getLong(size_index)
        return returnCursor.getString(name_index);
    }
    return null;
}

From source file:Main.java

/**
 * Returns the IMEI Number.// w  ww . ja  v  a 2s  .  co  m
 * @return - Device IMEI number.
 */
public static String getDeviceId(Context context) {
    TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    String deviceId = telephonyManager.getDeviceId();

    if (deviceId == null || deviceId.isEmpty()) {
        deviceId = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
    }

    return deviceId;
}

From source file:Main.java

/**
 * Get bitmap from a URI./*  w  w  w  .  j av a  2 s .c  om*/
 *
 * @param context The context.
 * @param uriString The URI as a string.
 *
 * @return The bitmap.
 */
public static Bitmap getBitmapFromUri(final Context context, String uriString) {
    Bitmap bitmap = null;
    if (uriString == null) {
        return null;
    }

    Uri uri = Uri.parse(uriString);
    if (uri != null) {
        try {
            bitmap = MediaStore.Images.Media.getBitmap(context.getContentResolver(), uri);
            if (bitmap != null) {
                // We use default density for all bitmaps to avoid scaling.
                bitmap.setDensity(DisplayMetrics.DENSITY_DEFAULT);
            }
        } catch (IOException e) {

        }
    }
    return bitmap;
}