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How to make a phone call in android and come back to my activity when the call is done?

...ener actions to wait for a the call to start (wait until changed from PHONE_STATE_OFFHOOK to PHONE_STATE_IDLE again) and then write some code to bring your app back up on the IDLE state. you may need to run the listener in a service to ensure it stays up and your app is restarted. some example c...
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How to implement a ConfigurationSection with a ConfigurationElementCollection

... The previous answer is correct but I'll give you all the code as well. Your app.config should look like this: <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="ServicesSection" type="RT.Core.Config.Servic...
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Why does HTML5 form-validation allow emails without a dot?

... I wonder when the last time someone actually sent an email to localhost! – Matthew Lock May 19 '17 at 3:14 2 ...
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NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder

....v7.** { *; } -keep interface android.support.v7.** { *; } with this: # Allow obfuscation of android.support.v7.internal.view.menu.** # to avoid problem on Samsung 4.2.2 devices with appcompat v21 # see https://code.google.com/p/android/issues/detail?id=78377 -keep class !android.support.v7.inter...
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How to print a groupby object

...like a bug to me. I created an issue. But a groupby operation doesn't actually return a DataFrame sorted by group. The .head() method is a little misleading here -- it's just a convenience feature to let you re-examine the object (in this case, df) that you grouped. The result of groupby is separat...
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How to play with Control.Monad.Writer in haskell?

... <- logNumber 5; return (a*b) } :: Writer [String] Int (Input actually entered all on one line). Here I've specified the type of multWithLog to be Writer [String] Int. Now I can run it: ghci> runWriter multWithLog (15, ["Got number: 3","Got number: 5"]) And you see that we log all of ...
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Load multiple packages at once

...t retyping the require command over and over? I've tried three approaches all of which crash and burn. 10 Answers ...
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dealloc in Swift

..., namely to remove an NSNotificationCenter notification. Implementing dealloc results in a Swift compiler error: 5 Answ...
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Calling closure assigned to object property directly

...sn't work on a StdClass. Before PHP7, you'd have to implement the magic __call method to intercept the call and invoke the callback (which is not possible for StdClass of course, because you cannot add the __call method) class Foo { public function __call($method, $args) { if(is_...
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Why does JQuery have dollar signs everywhere?

...ring your using noConflict (more below) var divs = $("div"); // Find all divs var divs = jQuery("div"); // Also find all divs, because console.log($ === jQuery); // "true" If you don't want to use the alias, you don't have to. And if you want $ to not be an alias for jQuery, you can use noC...