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Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
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What do you mean by "In NSMutableDictionary, it changes dictionary entries, unless you prefix the key with a '@' character -- in which case it modifies member variables." What member variables? Also maybe you can comment on stackoverflow.com/...
Center a button in a Linear layout
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If you want to center an item in the middle of the screen don't use a LinearLayout as these are meant for displaying a number of items in a row.
Use a RelativeLayout instead.
So replace:
android:layout_gravity="center_vertical|center_horizontal"
for the re...
SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...径)
从应用资源目录加载SVG文件。
设置元素颜色(元素ID,颜色)
设置指定SVG元素的颜色。
设置元素透明度(元素ID,透明度)
设置指定SVG元素的透明度。
动画元素(元素ID,动画类型,持续时间)
为指定SVG元素添加动画效果。
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Bold & Non-Bold Text In A Single UILabel?
....navigationController.toolbar.layer; //self is a view controller contained by a navigation controller
_textLayer.frame = CGRectMake((layer.bounds.size.width-180)/2 + 10, (layer.bounds.size.height-30)/2 + 10, 180, 30);
_textLayer.contentsScale = [[UIScreen mainScreen] scale]; ...
mysqldump data only
...atement for the table (for example, to create an empty copy of the
table by loading the dump file).
# To export to file (data only)
mysqldump -t -u [user] -p[pass] -t mydb > mydb_data.sql
# To export to file (structure only)
mysqldump -d -u [user] -p[pass] -d mydb > mydb_structure.sql
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How to specify mapping rule when names of properties differ
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Is it possible to make the -init method private in Objective-C?
... is for other developers to not be able to call it and let it be caught up by the compiler when 'running' or 'building'
– okysabeni
Apr 19 '13 at 17:36
1
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Disable JavaScript error in WebBrowser control
...es most scenarios, except, for example WebBrowser.GoBack, which is handled by Navigated. Navigated alone would miss a page being refreshed.)
– Ej.
Mar 19 '13 at 17:31
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Difference between EXISTS and IN in SQL?
...s keyword can be used in that way, but really it's intended as a way to avoid counting:
--this statement needs to check the entire table
select count(*) from [table] where ...
--this statement is true as soon as one match is found
exists ( select * from [table] where ... )
This is most useful ...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...DB table which records online users. It gets updated on every page refresh by a user to keep track of which pages they are on and their last access date to the site. I then have a cron that runs every 15 minutes to DELETE old records.
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