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How set background drawable programmatically in Android

...int ) is now deprecated in API level 22. You should use the following code from the support library instead: ContextCompat.getDrawable(context, R.drawable.ready) If you refer to the source code of ContextCompat.getDrawable, it gives you something like this: /** * Return a drawable object associ...
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Why is there no Tree class in .NET?

... What would you want from such an implementation? Binary tree? Red-black? Radix tree? B-tree? R-tree? R*-tree? A tree is more a pattern than a data structure, and they tend to be used where performance matters (so implementation details probabl...
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Differences between Intent and PendingIntent

... Intent An Android Intent is an object carrying an intent, i.e. a message from one component to another component either inside or outside of the application. Intents can communicate messages among any of the three core components of an application -- Activities, Services, and BroadcastReceivers. ...
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Assigning variables with dynamic names in Java

..., it shouldn't be something you would actually do. You don't gain anything from it; you'll actually lose readability. If you want to link them, use a Map<String, T> instead, don't start messing with your actual code. – Jeroen Vannevel Dec 15 '13 at 2:37 ...
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error: No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml

... I had the same problem. I copied the example code from Google code, and could not compile. xmlns:ads="http://schemas.android.com/apk/res/com.google.example" Finally, I figured it out. The last part of the code "com.google.example", is their package name, so you need to re...
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How to set the font size in Emacs?

...rito Which autocomplete? In my Emacs, set-face-attribute is indeed missing from M-x (execute-extended-command), but it is present in M-: (eval-expression) and C-h f (describe-function). M-: is probably what you want, if you don't want to put this in your .emacs file. – Rory O'K...
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How to enumerate a range of numbers starting at 1

... @8chan yep, i just got here from google searching "does enumerate start from zero python" :) – baxx Jun 3 '15 at 0:06 add a comm...
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How do I move the turtle in LOGO? [closed]

... NODRAW [ND] - Enter text mode with clear screen NOWRAP - Prevent drawings from wrapping around screen PENCOLOR [PC] - Change pen color PENDOWN [PD] - Turtle leaves trail PENUP [PU] - Turtle ceases to leave trail RIGHT ## [RT] - Turn turtle right SETHEADING [SETH] - Set turtle heading, e.g. SETH 180...
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POSTing a @OneToMany sub-resource association in Spring Data REST

... Should this also work with a patch request as in moving the comment from one post to another? – aycanadal Jun 25 '15 at 14:16 2 ...
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently

...It will work at first, but eventually, will get garbage collected, removed from the WeakHashMap and stop working. Keep a reference to the listener in a field of your class and you will be OK, provided your class instance is not destroyed. i.e. instead of: prefs.registerOnSharedPreferenceChangeLis...