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Custom Drawable for ProgressBar/ProgressDialog

...e following for creating a custom progress bar. File res/drawable/progress_bar_states.xml declares the colors of the different states: <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@android:id/background"> <shape> ...
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How do I create a URL shortener?

...two character checksum to the url. That would prevent direct iteration of all the urls in your system. Something simple like f(checksum(id) % (62^2)) + f(id) = url_id – koblas Sep 4 '10 at 13:53 ...
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How to check whether a file or directory exists?

...iven file or directory exists func exists(path string) (bool, error) { _, err := os.Stat(path) if err == nil { return true, nil } if os.IsNotExist(err) { return false, nil } return false, err } Edited to add error handling. ...
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How to reset sequence in postgres and fill id column with new data?

... This might cause duplicate ids. To prevent this, you can first set all to very high values: UPDATE t SET idcolumn=1000000+ nextval('seq'); then run the above script. – tahagh Nov 28 '13 at 13:15 ...
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How to count objects in PowerShell?

... @Damien OK. I made the edit . In SO people generally come from the first answer to the last. They wont suddenly jump into the third answer and get confused. So that I made it as a continuation of first two answers. That answer makes more sense then this edited one. ...
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How do I make a checkbox required on an ASP.NET form?

...ion for client side validation (using jQuery)... function CheckBoxRequired_ClientValidate(sender, e) { e.IsValid = jQuery(".AcceptedAgreement input:checkbox").is(':checked'); } code-behind for server side validation... protected void CheckBoxRequired_ServerValidate(object sender, ServerValid...
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Convert Python dictionary to JSON array

... If you are fine with non-printable symbols in your json, then add ensure_ascii=False to dumps call. >>> json.dumps(your_data, ensure_ascii=False) If ensure_ascii is false, then the return value will be a unicode instance subject to normal Python str to unicode coercion rules in...
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Annotating text on individual facet in ggplot2

... Typically you'd do something like this: ann_text <- data.frame(mpg = 15,wt = 5,lab = "Text", cyl = factor(8,levels = c("4","6","8"))) p + geom_text(data = ann_text,label = "Text") It should work without specifying the factor variable comple...
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How do I get the information from a meta tag with JavaScript?

... What you really want is 'let' to keep them locally defined ;) – tommed Mar 23 '15 at 21:54 26 ...
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What is the equivalent of 'describe table' in SQL Server?

...u want, though unfortunately you have to query the views and join them manually. share | improve this answer | follow | ...