Example usage for android.database Cursor moveToFirst

Introduction

In this page you can find the example usage for android.database Cursor moveToFirst.

Prototype

boolean moveToFirst();

Source Link

Document

Move the cursor to the first row.

Usage

From source file:Main.java

/**
 * Returns the Id for an artist.//  w w  w  . j ava2s  .co  m
 *
 * @param context The {@link Context} to use.
 * @param name The name of the artist.
 * @return The ID for an artist.
 */
public static final long getIdForArtist(final Context context, final String name) {
    Cursor cursor = context.getContentResolver().query(MediaStore.Audio.Artists.EXTERNAL_CONTENT_URI,
            new String[] { BaseColumns._ID }, ArtistColumns.ARTIST + "=?", new String[] { name },
            ArtistColumns.ARTIST);
    int id = -1;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            id = cursor.getInt(0);
        }
        cursor.close();
        cursor = null;
    }
    return id;
}

---

From source file:Main.java

private static int getImageRotationAngle(Uri imageUri, ContentResolver contentResolver) throws IOException {
    int angle = 0;
    Cursor cursor = contentResolver.query(imageUri, new String[] { MediaStore.Images.ImageColumns.ORIENTATION },
            null, null, null);/*  w  w  w  .  j a v a 2s.  c  o m*/
    if (cursor != null) {
        if (cursor.getCount() == 1) {
            cursor.moveToFirst();
            angle = cursor.getInt(0);
        }
        cursor.close();
    } else {
        ExifInterface exif = new ExifInterface(imageUri.getPath());
        int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);

        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_270:
            angle = 270;
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            angle = 180;
            break;
        case ExifInterface.ORIENTATION_ROTATE_90:
            angle = 90;
            break;
        default:
            break;
        }
    }
    return angle;
}

---

From source file:Main.java

public static String getPath(Context context, Uri uri) {
    if ("content".equalsIgnoreCase(uri.getScheme())) {
        String[] projection = { "_data" };
        Cursor cursor;

        try {/* w w w.ja va2s . com*/
            cursor = context.getContentResolver().query(uri, projection, null, null, null);
            int column_index = cursor.getColumnIndex("_data");
            if (column_index != -1 && cursor.moveToFirst()) {
                String path = cursor.getString(column_index);
                if (path == null) {
                    path = getNewTemporaryFilePath(context, uri);
                }
                return path;
            } else {
                return getNewTemporaryFilePath(context, uri);
            }
        } catch (Exception e) {
            return getNewTemporaryFilePath(context, uri);
        }
    } else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}

---

From source file:Main.java

/**
 * Returns The ID for a playlist./*from ww w . java 2  s. com*/
 *
 * @param context The {@link Context} to use.
 * @param name The name of the playlist.
 * @return The ID for a playlist.
 */
public static final long getIdForPlaylist(final Context context, final String name) {
    Cursor cursor = context.getContentResolver().query(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
            new String[] { BaseColumns._ID }, PlaylistsColumns.NAME + "=?", new String[] { name },
            PlaylistsColumns.NAME);
    int id = -1;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            id = cursor.getInt(0);
        }
        cursor.close();
        cursor = null;
    }
    return id;
}

---

From source file:Main.java

public static String getRealPathFromURI(Context context, Uri contentUri) {
    Cursor cursor = null;
    try {//w  w  w  . ja  v a  2 s . co  m
        String[] proj = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } catch (NullPointerException ex) {
        return "";
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

---

From source file:Main.java

public static String checkNull(Context context, int lastImageId, File fileCapture) {
    final String[] imageColumns = { Images.Media._ID, Images.Media.DATA };
    final String imageOrderBy = Images.Media._ID + " DESC";
    final String imageWhere = Images.Media._ID + ">?";
    final String[] imageArguments = { Integer.toString(lastImageId) };

    ContentResolver contentResolver = context.getContentResolver();
    Cursor cursor = contentResolver.query(Images.Media.EXTERNAL_CONTENT_URI, imageColumns, imageWhere,
            imageArguments, imageOrderBy);
    if (cursor == null)
        return null;

    String newpath = null;/*from w  ww.j a va 2s  .  c  om*/
    if (cursor.getCount() >= 2) {
        for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
            int id = cursor.getInt(cursor.getColumnIndex(Images.Media._ID));
            String data = cursor.getString(cursor.getColumnIndex(Images.Media.DATA));
            if (data.equals(fileCapture.getPath())) {
                int rows = contentResolver.delete(Images.Media.EXTERNAL_CONTENT_URI, Images.Media._ID + "=?",
                        new String[] { Long.toString(id) });
                boolean ok = fileCapture.delete();

            } else {
                newpath = data;
            }
        }
    } else {
        newpath = fileCapture.getPath();
        Log.e("MediaUtils", "Not found duplicate.");
    }

    cursor.close();
    return newpath;
}

---

From source file:Main.java

/**
 * Get the real file path from URI registered in media store 
 * @param contentUri URI registered in media store 
 *///from  w ww.  j a  v  a2 s  .c o  m
public static String getRealPathFromURI(Activity activity, Uri contentUri) {

    String releaseNumber = Build.VERSION.RELEASE;

    if (releaseNumber != null) {
        /* ICS, JB Version */
        if (releaseNumber.length() > 0 && releaseNumber.charAt(0) == '4') {
            // URI from Gallery(MediaStore)
            String[] proj = { MediaStore.Images.Media.DATA };
            String strFileName = "";
            CursorLoader cursorLoader = new CursorLoader(activity, contentUri, proj, null, null, null);
            Cursor cursor = cursorLoader.loadInBackground();
            if (cursor != null) {
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                if (cursor.getCount() > 0)
                    strFileName = cursor.getString(column_index);

                cursor.close();
            }
            // URI from Others(Dropbox, etc.) 
            if (strFileName == null || strFileName.isEmpty()) {
                if (contentUri.getScheme().compareTo("file") == 0)
                    strFileName = contentUri.getPath();
            }
            return strFileName;
        }
        /* GB Version */
        else if (releaseNumber.startsWith("2.3")) {
            // URI from Gallery(MediaStore)
            String[] proj = { MediaStore.Images.Media.DATA };
            String strFileName = "";
            Cursor cursor = activity.managedQuery(contentUri, proj, null, null, null);
            if (cursor != null) {
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);

                cursor.moveToFirst();
                if (cursor.getCount() > 0)
                    strFileName = cursor.getString(column_index);

                cursor.close();
            }
            // URI from Others(Dropbox, etc.) 
            if (strFileName == null || strFileName.isEmpty()) {
                if (contentUri.getScheme().compareTo("file") == 0)
                    strFileName = contentUri.getPath();
            }
            return strFileName;
        }
    }

    //---------------------
    // Undefined Version
    //---------------------
    /* GB, ICS Common */
    String[] proj = { MediaStore.Images.Media.DATA };
    String strFileName = "";
    Cursor cursor = activity.managedQuery(contentUri, proj, null, null, null);
    if (cursor != null) {
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);

        // Use the Cursor manager in ICS         
        activity.startManagingCursor(cursor);

        cursor.moveToFirst();
        if (cursor.getCount() > 0)
            strFileName = cursor.getString(column_index);

        //cursor.close(); // If the cursor close use , This application is terminated .(In ICS Version)
        activity.stopManagingCursor(cursor);
    }
    return strFileName;
}

---

From source file:Main.java

/**
 * Looks up a contacts display name by contact id - if not found, the
 * address (phone number) will be formatted and returned instead.
 *///from ww  w  .j  a  v a 2 s . co m
public static String getPersonName(Context context, String id, String address) {

    // Check for id, if null return the formatting phone number as the name
    if (id == null || "".equals(id.trim())) {
        if (address != null && !"".equals(address.trim())) {
            return PhoneNumberUtils.formatNumber(address);
        } else {
            return null;
        }
    }

    Cursor cursor = context.getContentResolver().query(Uri.withAppendedPath(Contacts.CONTENT_URI, id),
            new String[] { Contacts.DISPLAY_NAME }, null, null, null);

    if (cursor != null) {
        try {
            if (cursor.getCount() > 0) {
                cursor.moveToFirst();
                String name = cursor.getString(0);
                return name;
            }
        } finally {
            cursor.close();
        }
    }

    if (address != null) {
        return PhoneNumberUtils.formatNumber(address);
    }

    return null;
}

---

From source file:Main.java

public static byte[] getPersonPhoto(Context context, String id) {
    if (id == null)
        return null;
    byte photo[] = null;

    Cursor cursor = context.getContentResolver().query(Uri.withAppendedPath(Contacts.Photos.CONTENT_URI, id),
            new String[] { PhotosColumns.DATA }, null, null, null);
    if (cursor != null) {
        try {/*from   w  ww  .  jav a 2s  .c o  m*/
            if (cursor.getCount() > 0) {
                cursor.moveToFirst();
                photo = cursor.getBlob(0);
                if (photo != null) {
                    return photo;
                    // Log.v("Found photo for person: " + id);
                    // bitmap = BitmapFactory.decodeStream(new
                    // ByteArrayInputStream(photo));
                }
            }
        } finally {
            cursor.close();
        }
    }
    return photo;
}

---

From source file:Main.java

public static boolean haveCalendars(Activity ctx) {

    boolean exists = false;

    String[] projection = new String[] { "_id", "name" };
    Uri calendars = Uri.parse("content://calendar/calendars");

    // Calendar uri changes for 2.2
    Uri calendars_2_2 = Uri.parse("content://com.android.calendar/calendars");
    Cursor managedCursor = ctx.managedQuery(calendars, projection, null, null, null);

    if (managedCursor == null || managedCursor.getCount() == 0)
        managedCursor = ctx.managedQuery(calendars_2_2, projection, null, null, null);

    if (managedCursor != null && managedCursor.moveToFirst()) {
        String calName;//from   w  w  w.j  a  v  a2  s  .c om
        String calId;
        int nameColumn = managedCursor.getColumnIndex("name");
        int idColumn = managedCursor.getColumnIndex("_id");
        do {
            calName = managedCursor.getString(nameColumn);
            calId = managedCursor.getString(idColumn);
            exists = true;
        } while (managedCursor.moveToNext());

        managedCursor.close();
    }

    return exists;
}

---

• «
• 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
• »