删除标签-优快云博客

本文介绍了一个具体的删除书签功能的实现方式。该方法通过获取指定位置的书签信息，包括书签ID和标题，并使用AlertDialog来询问用户是否确认删除。如果用户选择确认，则执行删除操作并通知用户删除成功。

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public final void deleteBookmark(Cursor cur, int pos) {

    //fetching info
    ((Cursor) cur).moveToPosition(pos);
    final String bookmark_id = ((Cursor) cur).getString(((Cursor) cur).getColumnIndex(Browser.BookmarkColumns._ID));
    final String bookmark_title = ((Cursor) cur).getString(((Cursor) cur).getColumnIndex(Browser.BookmarkColumns.TITLE));

    //asking user to approve delete request
    AlertDialog alertDialog = new AlertDialog.Builder(Dmarks.this).create();
    alertDialog.setTitle("Delete" + " " + bookmark_title);
    alertDialog.setIcon(R.drawable.icon);
    alertDialog.setMessage("Are you sure you want to delete this Bookmark?");
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
             //deleting if user approved
             getContentResolver().delete(Browser.BOOKMARKS_URI, "_id = " + bookmark_id, null);

             //notifying user for deletion
             Context context = getApplicationContext();
             Toast.makeText(context, bookmark_title + " " + "deleted" , Toast.LENGTH_SHORT).show();
          } });
    alertDialog.setButton2("Cancel", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
              Context context = getApplicationContext();
              Toast.makeText(context, "canceled" , Toast.LENGTH_SHORT).show();
        } });
    alertDialog.show();
    }
}