managedQuery替換為cursorLoader

example：

    uri = data.getData();
    String[] proj = {MediaStore.Images.Media.DATA};
    Cursor cursor;
    Cursor cursor = managedQuery(uri, proj, null, null, null);

替換：

uri = data.getData();
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor;
if (Build.VERSION.SDK_INT < 11) {
    cursor = managedQuery(uri, proj, null, null, null);
} else {
    CursorLoader cursorLoader = new CursorLoader(this, uri, null, null, null, null);
    cursor = cursorLoader.loadInBackground();
}