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Garbage collector in Android

I have seen many Android answers that suggest calling the garbage collector in some situations. 11 Answers ...
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How to generate a Dockerfile from an image?

...;image_id> -f, --full-tree Generate Dockerfile for all parent layers -h, --help Show this message share | improve this answer | ...
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Why don't C++ compilers define operator== and operator!=?

...implement it and let the programmer do that themselves. Then they can make all the assumptions they like. share | improve this answer | follow | ...
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HTTP headers in Websockets client API

...he first message after the connection is established. The server then only allows the connection to continue if the ticket is valid (exists, has not been already used, client IP encoded in ticket matches, timestamp in ticket is recent, etc). Here is a summary of WebSocket security information: https...
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What is the difference between “screen” and “only screen” in media queries?

... to apply these styles. At that size you would be talking about anything smaller than a desktop screen in most cases. @media screen and (max-width:632px) This one is saying for a device with a screen and a window with max-width of 632px apply the style. This is almost identical to the above exce...
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What's the difference between fill_parent and wrap_content?

... value: android:layout_width="100dp" android:layout_height="200dp" Generally that is not as good, though, because it is not as flexible for different sized devices. After you have understood wrap_content and match_parent, the next thing to learn is layout_weight. See also What does android:lay...
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How to simulate a click by using x,y coordinates in JavaScript?

...sed to trick a cross-domain iframe document into thinking it was clicked. All modern browsers support document.elementFromPoint and HTMLElement.prototype.click(), since at least IE 6, Firefox 5, any version of Chrome and probably any version of Safari you're likely to care about. It will even foll...
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What to use instead of “addPreferencesFromResource” in a PreferenceActivity?

... Still you need to call addPreferencesFromResource(int PreferencesID) if you want the app to be backwards compatible with api level erlier than 11 (Android 3.0). But I guess you could consider those old devices derecated as well. ...
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Is there a “do … while” loop in Ruby?

... It looks like the begin-end-while loop is actually evaluating the condition before running the loop. The difference between that and a regular while loop is that it's guaranteed to run at least once. It's just close enough to do...while to cause problems. ...
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Test if a class has an attribute?

... to only check if the attribute is present, which is usually all that is needed for parameterless/propertyless attributes, it's cheaper to use .IsDefined, as it will query the metadata, and not deserialize and instantiate the attribute object. – Lasse V. Karl...