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Android “Only the original thread that created a view hierarchy can touch its views.”
... UI onto the main thread. There is a simple piece of code for this:
runOnUiThread(new Runnable() {
@Override
public void run() {
// Stuff that updates the UI
}
});
Documentation for Activity.runOnUiThread.
Just nest this inside the method that is running in the background,...
Loading local JSON file
I'm trying to load a local JSON file but it won't work. Here is my JavaScript code (using jQuery):
23 Answers
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How to calculate the angle between a line and the horizontal axis?
... is more of a directed line segment, not a "line", since lines extend infinitely and don't start at a particular point).
deltaY = P2_y - P1_y
deltaX = P2_x - P1_x
Then calculate the angle (which runs from the positive X axis at P1 to the positive Y axis at P1).
angleInDegrees = arctan(deltaY / d...
How do I put all required JAR files in a library folder inside the final JAR file with Maven?
...
The following is my solution. Test it if it works for you:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
...
How to quietly remove a directory with content in PowerShell
Using PowerShell, is it possible to remove some directory that contains files without prompting to confirm action?
13 Answe...
Sum a list of numbers in Python
... your input values are integers. By default, Python does integer division: it discards the remainder. To divide things through all the way, we need to use floating-point numbers. Fortunately, dividing an int by a float will produce a float, so we just use 2.0 for our divisor instead of 2.
Thus:
av...
Is it possible to get all arguments of a function as single object inside that function?
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Use arguments. You can access it like an array. Use arguments.length for the number of arguments.
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How to get a thread and heap dump of a Java process on Windows that's not running in a console
...ocess running, assuming you know the pid.
Use Task Manager or Resource Monitor to get the pid. Then
jmap -dump:format=b,file=cheap.hprof <pid>
to get the heap for that process.
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Alternative to iFrames with HTML5
I would like to know if there is an alternative to iFrames with HTML5.
I mean by that, be able to inject cross-domains HTML inside of a webpage without using an iFrame.
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Does setting Java objects to null do anything anymore?
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It depends a bit on when you were thinking of nulling the reference.
If you have an object chain A->B->C, then once A is not reachable, A, B and C will all be eligible for garbage collection (assuming nothing else is r...