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How to pass the values from one activity to previous activity

...he entered text value in its extras bundle. To pass it back to the parent call setResult before calling finish to close the secondary Activity. Intent resultIntent = new Intent(); resultIntent.putExtra(PUBLIC_STATIC_STRING_IDENTIFIER, enteredTextValue); setResult(Activity.RESULT_OK, resultIntent); ...
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Why is UICollectionViewCell's outlet nil?

...I don't use it, it gives me error Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:] – Shaheera Jun 30 '16 at 11:04 ...
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How to calculate dp from pixels in android programmatically [duplicate]

I want to calculate dp from px programmatically. How to do it? I get resolution from: 4 Answers ...
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Removing Java 8 JDK from Mac

So I installed the beta of JDK 8 a while ago to look at some of the examples. I thought for sure by now, it's easy to change between versions. ...
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Opposite of %in%: exclude rows with values specified in a vector

... use `%not in%` <- function (x, table) is.na(match(x, table, nomatch=NA_integer_)) Another way is: function (x, table) match(x, table, nomatch = 0L) == 0L share | improve this answer ...
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php

...austed. Maybe you don't need to read the whole file, maybe read it sequentially. – macbirdie Jan 22 '09 at 10:12 8 ...
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How do I install a custom font on an HTML site

... Yes, you can use the CSS feature named @font-face. It has only been officially approved in CSS3, but been proposed and implemented in CSS2 and has been supported in IE for quite a long time. You declare it in the CSS like this: @font-face { font-family: Delicious; src: url('Delicious-Roman.otf')...
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Why is “copy and paste” of code dangerous? [closed]

...you will need to fix it every place you did and hope you can remember them all (this also holds for changed requirements). If you keep logic in one place, it is easier to change when needed (so if you decide that the application needs updating, you only do it in one place). Have your boss read abo...
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What is the difference between a port and a socket?

...because a connection is identified by both its local and remote endpoints, allowing traffic to be routed to a specific service instance. There can only be one listener socket for a given address/port combination. Exposition This was an interesting question that forced me to re-examine a number of...
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How to get error message when ifstream open fails

... Every system call that fails update the errno value. Thus, you can have more information about what happens when a ifstream open fails by using something like : cerr << "Error: " << strerror(errno); However, since every s...