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 a  v  a  2 s  .c o  m
 * @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. 
 */
private 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()) {
            final int index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

From source file:Main.java

public static String getPathFromUri(Context context, Uri uri) {
    if (uri == null) {
        return null;
    }//from  www.j ava 2 s. c om
    Cursor cursor = null;
    try {
        String[] proj = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(uri, proj, null, null, null);
        if (cursor == null) {
            return null;
        }
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

From source file:Main.java

public static Bitmap load_bitmap_from_uri_string(Context context, String uri, int sizeX, int sizeY) {
    Bitmap small_bitmap = null;//from w  w  w  . j a  v a2s.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);
            small_bitmap = Bitmap.createScaledBitmap(bitmap, sizeX, sizeY, false);
            bitmap.recycle();

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

    return small_bitmap;
}

From source file:Main.java

/**
 * Write the given bitmap to the given uri using the given compression.
 *//* ww w .  java2 s.c  om*/
static void writeBitmapToUri(Context context, Bitmap bitmap, Uri uri, Bitmap.CompressFormat compressFormat,
        int compressQuality) throws FileNotFoundException {
    OutputStream outputStream = null;
    try {
        outputStream = context.getContentResolver().openOutputStream(uri);
        bitmap.compress(compressFormat, compressQuality, outputStream);
    } finally {
        closeSafe(outputStream);
    }
}

From source file:Main.java

public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

    Cursor cursor = null;// ww  w. ja 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 column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } catch (Exception e) {
        //            FileLog.e("tmessages", e);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return null;
}

From source file:Main.java

public static final void openGPS(Context context) {
    Intent intent = new Intent("com.nd.android.starapp.ui.jay.weibo.activity.GPS");
    intent.putExtra("enabled", true);
    context.sendBroadcast(intent);/*from  w  w  w  . j  a v  a 2 s .  c om*/

    String provider = Settings.Secure.getString(context.getContentResolver(),
            Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
    if (!provider.contains("gps")) { //if gps is disabled
        final Intent poke = new Intent();
        poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
        poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
        poke.setData(Uri.parse("3"));
        context.sendBroadcast(poke);
    }
}

From source file:Main.java

public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

    Cursor cursor = null;//from w  w w. ja  v a 2  s.  c  om
    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);
        }
    } catch (Exception e) {
        Log.e("tmessages", e.getMessage());
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return null;
}

From source file:Main.java

/**
 * @param context The {@link Context} to use.
 * @param id The id of the album./*from w w w .  ja  v  a  2s  .  c  o m*/
 * @return The song count for an album.
 */
public static final String getSongCountForAlbum(final Context context, final long id) {
    if (id == -1) {
        return null;
    }
    Uri uri = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, id);
    Cursor cursor = context.getContentResolver().query(uri, new String[] { AlbumColumns.NUMBER_OF_SONGS }, null,
            null, null);
    String songCount = null;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            songCount = cursor.getString(0);
        }
        cursor.close();
        cursor = null;
    }
    return songCount;
}

From source file:Main.java

/**
 * @param context The {@link Context} to use.
 * @param id The id of the album./* w  w w.  ja va 2 s .  co  m*/
 * @return The release date for an album.
 */
public static final String getReleaseDateForAlbum(final Context context, final long id) {
    if (id == -1) {
        return null;
    }
    Uri uri = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, id);
    Cursor cursor = context.getContentResolver().query(uri, new String[] { AlbumColumns.FIRST_YEAR }, null,
            null, null);
    String releaseDate = null;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            releaseDate = cursor.getString(0);
        }
        cursor.close();
        cursor = null;
    }
    return releaseDate;
}

From source file:Main.java

public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

    Cursor cursor = null;//from   w ww . j  a va2 s. co m
    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);
            String value = cursor.getString(column_index);
            if (value.startsWith("content://") || !value.startsWith("/") && !value.startsWith("file://")) {
                return null;
            }
            return value;
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return null;
}