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How to define @Value as optional
...apparently due to both lack of interest and no clean way of fixing it. See https://github.com/spring-projects/spring-framework/issues/14623 for discussion and some ways to work around it. It's explained in an understandable way by http://www.michelschudel.nl/wp/2017/01/25/beware-of-multiple-spring-p...
Understanding colors on Android (six characters)
...o 55.
Enter your decimal value in a decimal-to-hexadecimal converter, like http://www.binaryhexconverter.com/decimal-to-hex-converter, and convert your values.
If you only get back a single value, prefix it with a zero. For example, if you're trying to get 5% opacity and you're going through this pr...
Java: random long number in 0
... see @mawaldne's answer), or implement your own nextLong(n).
According to https://docs.oracle.com/javase/1.5.0/docs/api/java/util/Random.html nextInt is implemented as
public int nextInt(int n) {
if (n<=0)
throw new IllegalArgumentException("n must be positive");
if ...
Offset a background image from the right using CSS
... fine.
See Can I use for details on the supported browsers.
Used source: http://tanalin.com/en/blog/2011/09/css3-background-position/
Update:
This feature is now supported in all major browsers, including mobile browsers.
...
How to use ADB to send touch events to device using sendevent command?
...same position:
adb shell input tap 757 1694
More info can be found at:
https://source.android.com/devices/input/touch-devices.html
http://source.android.com/devices/input/getevent.html
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i...
converting drawable resource image into bitmap
...ce ic_action_back with your drawable file name.
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="@drawable/ic_action_back"
android:tint="@color/color_primary_text" />
Now, you can use it with Resource ID, R.id.filename.
...
Was PreferenceFragment intentionally excluded from the compatibility package?
...sharedprefs manually...ugh.
EDIT:
After trying and looking at the code at http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.0.1_r1/android/preference/PreferenceFragment.java?av=h -- creating my own PreferenceFragment isn't going to happen. It appears the libera...
What predefined macro can I use to detect clang?
...e code. I can easily find predefined macros to check for MSVC or GCC (see http://predef.sourceforge.net/ for example), but I cannot find any macro to check for clang.
...
Lodash - difference between .extend() / .assign() and .merge()
...e to destination.
Here's simple JSBin that would make this crystal clear:
http://jsbin.com/uXaqIMa/2/edit?js,console
Here's more elaborate version that includes array in the example as well:
http://jsbin.com/uXaqIMa/1/edit?js,console
...
Pure virtual destructor in C++
... crash.
Edit: fixing the declaration to be more conformant, compiled with http://www.comeaucomputing.com/tryitout/
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