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

/**
 * Get the value of the data column for this Uri. This is useful for
 * MediaStore Uris, and other file-based ContentProviders.
 *
 * @param context The context.//w w  w .  j ava 2  s  .  c  om
 * @param uri The Uri to query.
 * @param selection (Optional) Filter used in the query.
 * @param selectionArgs (Optional) Selection arguments used in the query.
 * @return The value of the _data column, which is typically a file path.
 * @author paulburke
 */
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = { column };

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            if (DEBUG)
                DatabaseUtils.dumpCursor(cursor);

            final int column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

---

From source file:Main.java

public static Drawable get_scaled_drawable_from_uri_string_for_square_container(Context context, String uri,
        int max_size) {
    Drawable drawable = null;//ww w . ja  v  a  2 s .  c  o  m
    Uri img_uri = Uri.parse(uri);
    if (uri != null) {
        try {

            InputStream inputStream = context.getContentResolver().openInputStream(img_uri);
            Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
            int sx = bitmap.getWidth();
            int sy = bitmap.getHeight();

            int fsx = max_size;
            int fsy = max_size;

            if (sy > sx)
                fsx = (int) ((float) max_size * ((float) sx / (float) sy));
            else if (sx > sy)
                fsy = (int) ((float) max_size * ((float) sy / (float) sx));

            Bitmap small_bitmap = Bitmap.createScaledBitmap(bitmap, fsx, fsy, false);
            bitmap.recycle();
            drawable = new BitmapDrawable(context.getResources(), small_bitmap);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
    return drawable;
}

---

From source file:Main.java

public static String getDataColumn(final Context context, final Uri uri, final String selection,
        final String[] selectionArgs) {
    Cursor cursor = null;//ww w .  j  a  va 2s.  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 column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return null;
}

---

From source file:com.example.facebook_photo.Utility.java

public static byte[] scaleImage(Context context, Uri photoUri) throws IOException {
    InputStream is = context.getContentResolver().openInputStream(photoUri);
    BitmapFactory.Options dbo = new BitmapFactory.Options();
    dbo.inJustDecodeBounds = true;/*from   w w w  .j  a  va 2s .co m*/
    BitmapFactory.decodeStream(is, null, dbo);
    is.close();

    int rotatedWidth, rotatedHeight;
    int orientation = getOrientation(context, photoUri);

    if (orientation == 90 || orientation == 270) {
        rotatedWidth = dbo.outHeight;
        rotatedHeight = dbo.outWidth;
    } else {
        rotatedWidth = dbo.outWidth;
        rotatedHeight = dbo.outHeight;
    }

    Bitmap srcBitmap;
    is = context.getContentResolver().openInputStream(photoUri);
    if (rotatedWidth > MAX_IMAGE_DIMENSION || rotatedHeight > MAX_IMAGE_DIMENSION) {
        float widthRatio = ((float) rotatedWidth) / ((float) MAX_IMAGE_DIMENSION);
        float heightRatio = ((float) rotatedHeight) / ((float) MAX_IMAGE_DIMENSION);
        float maxRatio = Math.max(widthRatio, heightRatio);

        // Create the bitmap from file
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inSampleSize = (int) maxRatio;
        srcBitmap = BitmapFactory.decodeStream(is, null, options);
    } else {
        srcBitmap = BitmapFactory.decodeStream(is);
    }
    is.close();

    /*
     * if the orientation is not 0 (or -1, which means we don't know), we
     * have to do a rotation.
     */
    if (orientation > 0) {
        Matrix matrix = new Matrix();
        matrix.postRotate(orientation);

        srcBitmap = Bitmap.createBitmap(srcBitmap, 0, 0, srcBitmap.getWidth(), srcBitmap.getHeight(), matrix,
                true);
    }

    String type = context.getContentResolver().getType(photoUri);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    if (type.equals("image/png")) {
        srcBitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
    } else if (type.equals("image/jpg") || type.equals("image/jpeg")) {
        srcBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    }
    byte[] bMapArray = baos.toByteArray();
    baos.close();
    return bMapArray;
}

---

From source file:disono.webmons.com.utilities.helpers.WBFile.java

/**
 * Bitmap URI//from   w  ww. java 2 s . c  om
 *
 * @param context
 * @param inImage
 * @return
 */
public static Uri getBmpUri(Context context, Bitmap inImage) {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
    String path = MediaStore.Images.Media.insertImage(context.getContentResolver(), inImage, "Title", null);
    return Uri.parse(path);
}

---

From source file:Main.java

/**
 * Get the value of the data column for this Uri. This is useful for
 * MediaStore Uris, and other file-based ContentProviders.
 * /* ww  w .j  a  va  2s.c  o m*/
 * @param context
 *            The context.
 * @param uri
 *            The Uri to query.
 * @param selection
 *            (Optional) Filter used in the query.
 * @param selectionArgs
 *            (Optional) Selection arguments used in the query.
 * @return The value of the _data column, which is typically a file path.
 */
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

    Cursor cursor = null;
    final String column = MediaStore.MediaColumns.DATA;
    final String[] projection = { column };

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int column_index = cursor.getColumnIndexOrThrow(column);

            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

---

From source file:Main.java

public static boolean isAccessibilityServiceEnabled(Context context,
        Class<? extends AccessibilityService> accessibilityService) {
    ComponentName expectedComponentName = new ComponentName(context, accessibilityService);

    String enabledServicesSetting = Settings.Secure.getString(context.getContentResolver(),
            Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
    if (enabledServicesSetting == null)
        return false;

    TextUtils.SimpleStringSplitter colonSplitter = new TextUtils.SimpleStringSplitter(':');
    colonSplitter.setString(enabledServicesSetting);

    while (colonSplitter.hasNext()) {
        String componentNameString = colonSplitter.next();
        ComponentName enabledService = ComponentName.unflattenFromString(componentNameString);

        if (enabledService != null && enabledService.equals(expectedComponentName))
            return true;
    }//  www.  jav  a 2  s  . c o  m

    return false;
}

---

From source file:Main.java

public static Bitmap decodeSampledBitmapFromStream(Context context, Uri uri, int reqWidth, int reqHeight)
        throws IOException {
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;//from   www .  jav  a2s . c o m
    InputStream stream = context.getContentResolver().openInputStream(uri);
    BitmapFactory.decodeStream(stream, null, options);
    stream.close();
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
    options.inJustDecodeBounds = false;
    stream = context.getContentResolver().openInputStream(uri);
    Bitmap bmp = BitmapFactory.decodeStream(stream, null, options);
    stream.close();
    return bmp;
}

---

From source file:com.textuality.lifesaver2.Columns.java

public static Map<String, Boolean> loadKeys(Context context, Uri provider, Columns columns) {
    Cursor cursor = context.getContentResolver().query(provider, null, null, null, null);
    Boolean exists = new Boolean(true);
    Map<String, Boolean> map = new Hashtable<String, Boolean>();
    while (cursor.moveToNext()) {
        map.put(columns.cursorToKey(cursor), exists);
    }//from   w w  w  .  j a  v  a 2  s  .c om
    cursor.close();
    return map;
}

---

From source file:Main.java

private final static void updateMeta(Context ctx, Uri uri, String name, long ts) {
    ContentValues cv = new ContentValues();
    cv.put(MediaStore.Images.ImageColumns.DATE_TAKEN, ts);
    cv.put(MediaStore.Images.ImageColumns.IS_PRIVATE, 1);
    cv.put(MediaStore.Images.ImageColumns.TITLE, name);
    ctx.getContentResolver().update(uri, cv, null, null);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »