cursor

Android - Getting database ID from ListView selection

随声附和 提交于 2019-12-02 08:34:44
I have a ListView lv which uses a Cursor c from an SQL database to populate it. When an item is selected however, I need to get the ID of the row. How can I do this? I assume that you are using a SimpleCursorAdapter (or similar), so I would use the OnItemClickListener : listView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // id references the SQLiteDatabase _id column } }); Here's how it worked out for me. In an other class, I have created a method of List type and added the column id & the name

Joining cursors and sorting

夙愿已清 提交于 2019-12-02 08:18:20
问题 I'm writing a "gallery-type" app for Android. In the "master activity", I have a GridView which I want to load/fill with thumbnails from photos on the device. So I've written a ContentProvider, where the query method returns a cursor from MediaStore.Media.Thumbnails. However, I also want to display some meta data from MediaStore.Media.Images. In order to do this, I ended up using a CursorJoiner to join c_thumbs and c_images on ID. Only problem with this, is that CursorJoiner requires the

Am I restricted to the cursor numbers defined in Controls.pas under Delphi 7?

依然范特西╮ 提交于 2019-12-02 08:04:36
问题 I am using Delphi 7 under Windows 7 to download files. I want to change the cursor during the download. I set the Screen.Cursor := crHourGlass; , but , after looking at the constant cursor numbers in Controls.pas , I was wondering whether there are other numbers I can use to change the cursor into ( I don't want to add a cursor to my resource file, I just want to use standard numbers which I can use without having to add resources ). 回答1: does other numbers produce meaning full cursors No.

java.lang.IllegalStateException: attempt to re-open an already-closed object On Orientation Change

▼魔方 西西 提交于 2019-12-02 07:53:35
I am using 1 Activity that inflates 2 fragments (2 panes) in case of sw600-land and 1 fragment case of sw600 both of the fragments implements LoaderManager.LoaderCallbacks I'm initializing loader by (in onStart ) getActivity().getSupportLoaderManager().initLoader(pm2_MAIN_LOADER_ID, null, this); then I closed the cursor in onLoadFinished (at the last line of it) giving me the error so I have tried to close it somewhere else as the answers that I found on StackOverflow as onDestroy giving the same error so when I can close the cursor? When using a CursorLoader with the Loader framework, you

How to check duplicates name in android database?

拟墨画扇 提交于 2019-12-02 07:25:36
问题 I want to enter name and phone number from two edit text.i use two buttons to save and show it in emulator using list view.After entering name and when i click save button how to check whether i have already entered the same name. i am new to android explanation will be really helpful. public void onCreate(SQLiteDatabase db) { db.execSQL("CREATE TABLE "+tbname+"("+Key_id+" INTEGER PRIMARY KEY AUTOINCREMENT, "+Key_name+" TEXT,"+Key_mobile+" TEXT)"); } public void n(String aa, String bb) {

最新大大

半城伤御伤魂 提交于 2019-12-02 07:16:52
https://www.cnblogs.com/wzj998/p/7278630.html #-*- coding:utf-8 -*- import requests from bs4 import BeautifulSoup import tushare as ts import pandas as pd import lxml import time import datetime import pymysql pymysql.install_as_MySQLdb() from sqlalchemy import create_engine ''' 股票基本信息获取模块 ''' # 调用stock_basic接口,获取股票基本信息 def get_security_info(): # 获取字段包含:ts代码、股票代码、股票名称、行业、股票市场类型、交易所类型、上市日期 stock_list = pro.stock_basic(list_status='L', fields='ts_code,symbol,name,industry,market,exchange,list_date') cursor = conn.cursorsor() # 执行删除数据命令 cursor.execute('delect from stock_list') conn.commit() for

Load an embedded animated Cursor from the Resource

半世苍凉 提交于 2019-12-02 07:03:44
I have an animated Cursor file (*.ani) in the resources and want to show it as a cursor in my application. How can I load it from the resources? I looked up in the Internet, but there are only ways to show it when u have a real file and if it is not embedded in the resources. Yvan Genesse // from resources modification here is : byte[] variable resource in the call // modified class by Yvan Genesse public class AdvancedCursorsFromEmbededResources { // modified by Yvan Genesse November 29 2010 // C# example tested in MS Visual Studio 2010 Ultimate version // University Student in E-Business @

用户界面样式(cursor,resize,vertical-align,outline)

流过昼夜 提交于 2019-12-02 07:00:24
1. 鼠标样式 cursor  default: 小白(箭头)默认  pointer:小手  move:移动  text:文本  not-allowed:禁止 2. 轮廓线(表单外发光)outline  给表单添加 outline:0; 或者 outline:none; 可以去掉默认蓝色边框 3. 防止拖拽文本域(resize)  实际开发中 textarea 是不允许拖拽文本域的,使用 resize:none; 解决  需要注意的是让 <textarea></textarea> 标签在一行显示,不然在文本域的输入框中 有文字空行。 4.垂直居中(vertical-align)  常用于 设置图片 或者 表单(行内块元素)和文字垂直对齐  官方解释:用于设置一个元素的垂直对齐方式,只针对 行内元素 或者 行内块元素 有效  语法:vertical-align:baseline | top | middle | bottom;  baseline:默认,元素放置在父元素的 基线 上  top:把元素的顶端 与 行中最高元素 的顶端对齐  middle:把此元素放置在父元素的 中部  bottom:把元素的顶端 与 行中最低的元素 的顶端对齐 来源: https://www.cnblogs.com/qtbb/p/11735687.html

Joining cursors and sorting

元气小坏坏 提交于 2019-12-02 06:28:40
I'm writing a "gallery-type" app for Android. In the "master activity", I have a GridView which I want to load/fill with thumbnails from photos on the device. So I've written a ContentProvider, where the query method returns a cursor from MediaStore.Media.Thumbnails. However, I also want to display some meta data from MediaStore.Media.Images. In order to do this, I ended up using a CursorJoiner to join c_thumbs and c_images on ID. Only problem with this, is that CursorJoiner requires the input cursors to already be sorted (ordered) on the join key (ID), in ascending order. What I want is

最新

点点圈 提交于 2019-12-02 06:14:19
def moneyflow(): # 单次最大提取4000行记录,总量不限制 data = pro.stock_basic(exchange='', list_status='L', fields='ts_code') for index, row in data.iterrows(): ts_code = row['ts_code'] #df = pro.moneyflow(ts_code=ts_code,fields='ts_code,trade_date,,,,,').sum() print(ts_code) # 大单买入金额(大于20万小于100万) buy_lg_amount = (pro.moneyflow(ts_code=ts_code,fields='buy_lg_amount').sum())/10000 print(buy_lg_amount) # 大单卖出金额(大于20万小于100万) sell_lg_amount = pro.moneyflow(ts_code=ts_code,fields='sell_lg_amount').sum() # 超大单买入金额(大于100万) buy_elg_amount = pro.moneyflow(ts_code=ts_code,fields='buy_elg_amount').sum() # 超大单卖出金额(大于100万