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Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
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This can happen when trying to install a debug/unsigned APK on top of a signed release APK from the Play store.
H:\>adb install -r "Signed.apk"
2909 KB/s (220439 bytes in 0.074s)
pkg: /data/local/tmp/Signed.apk
Success
H:\>adb install -r "AppName.apk"
2753 KB/s (219954 by...
Jackson serialization: ignore empty values (or null)
...ation.JsonInclude;
Add
@JsonInclude(JsonInclude.Include.NON_NULL)
on top of POJO
If you have nested POJO then
@JsonInclude(JsonInclude.Include.NON_NULL)
need to add on every values.
NOTE:
JAXRS (Jersey) automatically handle this scenario 2.6 and above.
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Unwanted padding around an ImageView
.... i don't want the image to match the screen, i want it just there, at the top.
– stefs
Apr 29 '11 at 10:57
Double che...
Fatal error: Maximum execution time of 300 seconds exceeded
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add it at the very top of your php file
– Tules
Oct 6 '11 at 21:24
2
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Reserved keywords in JavaScript
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We should be linking to the actual sources of info, rather than just the top google hit.
http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Reserved_Words
JScript 8.0:
http://msdn.microsoft.com/en-us/library/ttyab5c8.aspx
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Reduce left and right margins in matplotlib plot
....pyplot as plt
plt.plot(whatever)
plt.subplots_adjust(left=0.1, right=0.9, top=0.9, bottom=0.1)
This will work for both the figure on screen and saved to a file, and it is the right function to call even if you don't have multiple plots on the one figure.
The numbers are fractions of the figure d...
JSHint and jQuery: '$' is not defined
...u cannot or do not want to use the .jshintrc file, you can add this at the top of the script file:
/*globals $:false */
There is also a shorthand "jquery" jshint option as seen on the JSHint options page..
share
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How to add a right button to a UINavigationController?
I am trying to add a refresh button to the top bar of a navigation controller with no success.
21 Answers
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How to import Google Web Font in CSS file?
...n between each word, as I did.
Make sure to place the @import at the very top of your CSS, before any rules.
Google Fonts can automatically generate the @import directive for you. Once you have chosen a font, click the (+) icon next to it. In bottom-left corner, a container titled "1 Family Select...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...detecting process to our component, we need to add a GestureOverlayView on top of a Canvas Object. However, when there is a GestureOverlayView on top of the Canvas component, all fingers’ movements are used to predict which gesture is performed, so it will affect other functionalities of the Canva...