public _CursorAdapter_873(AlertParams _enclosing, [email protected] .RecycleListView listView, [email protected] dialog, android.content.Context baseArg1, android.database.Cursor baseArg2, bool baseArg3) : base(baseArg1, baseArg2 , baseArg3) { this._enclosing = _enclosing; this.listView = listView; this.dialog = dialog; { android.database.Cursor cursor = this.getCursor(); this.mLabelIndex = cursor.getColumnIndexOrThrow(this._enclosing.mLabelColumn); this.mIsCheckedIndex = cursor.getColumnIndexOrThrow(this._enclosing.mIsCheckedColumn ); } }
private void initFromColumns(android.database.Cursor cursor, string[] fromColumnNames
, int[] fromColumns)
{
{
for (int i = fromColumnNames.Length - 1; i >= 0; i--)
{
fromColumns[i] = cursor.getColumnIndexOrThrow(fromColumnNames[i]);
}
}
}
public override void onActivityResult(int requestCode, int resultCode, Intent data)
{
base.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CODE_ACTION_PICK)
{
if (data != null)
{
Uri uri = data.Data;
System.IO.Stream @is = null;
try
{
@is = ContentResolver.openInputStream(uri);
}
catch (FileNotFoundException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return;
}
try
{
BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inJustDecodeBounds = false;
opts.inSampleSize = 1;
opts.inPreferredConfig = Bitmap.Config.RGB_565;
Bitmap bm = BitmapFactory.decodeStream(@is, null, opts);
mImageView.ImageBitmap = bm;
}
catch (System.OutOfMemoryException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return;
}
ContentResolver cr = ContentResolver;
Cursor c = cr.query(uri, new string[] { MediaStore.Images.Media.DATA }, null, null, null);
if (c == null || c.Count == 0)
{
return;
}
c.moveToFirst();
int columnIndex = c.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
string text = c.getString(columnIndex);
mTextView.Text = text;
}
}
}
/// <summary>Swap in a new Cursor, returning the old Cursor.</summary>
/// <remarks>
/// Swap in a new Cursor, returning the old Cursor. Unlike
/// <see cref="changeCursor(android.database.Cursor)">changeCursor(android.database.Cursor)
/// </see>
/// , the returned old Cursor is <em>not</em>
/// closed.
/// </remarks>
/// <param name="newCursor">The new cursor to be used.</param>
/// <returns>
/// Returns the previously set Cursor, or null if there wasa not one.
/// If the given new Cursor is the same instance is the previously set
/// Cursor, null is also returned.
/// </returns>
public virtual android.database.Cursor swapCursor(android.database.Cursor newCursor
)
{
if (newCursor == mCursor)
{
return(null);
}
android.database.Cursor oldCursor = mCursor;
if (oldCursor != null)
{
if (mChangeObserver != null)
{
oldCursor.unregisterContentObserver(mChangeObserver);
}
if (mDataSetObserver != null)
{
oldCursor.unregisterDataSetObserver(mDataSetObserver);
}
}
mCursor = newCursor;
if (newCursor != null)
{
if (mChangeObserver != null)
{
newCursor.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null)
{
newCursor.registerDataSetObserver(mDataSetObserver);
}
mRowIDColumn = newCursor.getColumnIndexOrThrow("_id");
mDataValid = true;
// notify the observers about the new cursor
notifyDataSetChanged();
}
else
{
mRowIDColumn = -1;
mDataValid = false;
// notify the observers about the lack of a data set
notifyDataSetInvalidated();
}
return(oldCursor);
}
internal virtual void init(android.content.Context context, android.database.Cursor
c, int flags)
{
if ((flags & FLAG_AUTO_REQUERY) == FLAG_AUTO_REQUERY)
{
flags |= FLAG_REGISTER_CONTENT_OBSERVER;
mAutoRequery = true;
}
else
{
mAutoRequery = false;
}
bool cursorPresent = c != null;
mCursor = c;
mDataValid = cursorPresent;
mContext = context;
mRowIDColumn = cursorPresent ? c.getColumnIndexOrThrow("_id") : -1;
if ((flags & FLAG_REGISTER_CONTENT_OBSERVER) == FLAG_REGISTER_CONTENT_OBSERVER)
{
mChangeObserver = new android.widget.CursorAdapter.ChangeObserver(this);
mDataSetObserver = new android.widget.CursorAdapter.MyDataSetObserver(this);
}
else
{
mChangeObserver = null;
mDataSetObserver = null;
}
if (cursorPresent)
{
if (mChangeObserver != null)
{
c.registerContentObserver(mChangeObserver);
}
if (mDataSetObserver != null)
{
c.registerDataSetObserver(mDataSetObserver);
}
}
}
