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Animated loading image in picasso

I have the following code to load an image in Picasso, using a drawable for the placeholder to display while the image is downloading. What I want though is an animated spinning progress bar style spinner that animates around and around while the image is loading, like I see in most professional app...
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Applying a function to every row of a table using dplyr?

When working with plyr I often found it useful to use adply for scalar functions that I have to apply to each and every row. ...
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Webview load html from assets directory

I'm trying to load a html page from the assets directory. I tried this, but it fails. 4 Answers ...
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Build vs new in Rails 3

In the Rails 3 docs , the build method for associations is described as being the same as the new method, but with the automatic assignment of the foreign key. Straight from the docs: ...
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Substitute multiple whitespace with single whitespace in Python [duplicate]

I have this string: 3 Answers 3 ...
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How to append a newline to StringBuilder

I have a StringBuilder object, 9 Answers 9 ...
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Get string character by index - Java

I know how to work out the index of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f". ...
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jQuery get the location of an element relative to window

Given an HTML DOM ID, how to get an element's position relative to the window in JavaScript/JQuery? This is not the same as relative to the document nor offset parent since the element may be inside an iframe or some other elements. I need to get the screen location of the element's rectangle (as ...
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Render HTML to PDF in Django site

For my django powered site, I am looking for an easy solution to convert dynamic html pages to pdf. 8 Answers ...
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Best way to select random rows PostgreSQL

I want a random selection of rows in PostgreSQL, I tried this: 12 Answers 12 ...