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frequent issues arising in android view, Error parsing XML: unbound prefix
...f reasons that this can happen:
1) You see this error with an incorrect namespace, or a typo in the attribute. Like 'xmlns' is wrong, it should be xmlns:android
2) First node needs to contain:
xmlns:android="http://schemas.android.com/apk/res/android"
3) If you are integrating AdMob, check custom...
How to navigate through textfields (Next / Done Buttons)
...e anyway, with two assumptions:
All "tabbable" UITextFields are on the same parent view.
Their "tab-order" is defined by the tag property.
Assuming this you can override textFieldShouldReturn: as this:
-(BOOL)textFieldShouldReturn:(UITextField*)textField
{
NSInteger nextTag = textField.tag + ...
What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
... queries in SQL.
The main advantages of the graph model were rapid development time and flexibility. We could quickly add new functionality without impacting existing deployments. If a potential customer wanted to import some of their own data and graft it on top of our model, it could usually be d...
compareTo() vs. equals()
...or equality of String 's in Java I have always used equals() because to me this seems to be the most natural method for it. After all, its name already says what it is intended to do. However, a colleague of mine recently told me had been taught to use compareTo() == 0 instead of equals() . Th...
How to alter a column and change the default value?
...ARCHAR(255) NOT NULL DEFAULT '{}';
A second possibility which does the same (thanks to juergen_d):
ALTER TABLE foobar_data CHANGE COLUMN col col VARCHAR(255) NOT NULL DEFAULT '{}';
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Set attribute without value
...data-body>
Reference - http://api.jquery.com/attr/#attr-attributeName-value
attr( attributeName , value )
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Matplotlib (pyplot) savefig outputs blank image
...urrent figure", then you can call savefig() on this Figure object at any time.
For example:
fig1 = plt.gcf()
plt.show()
plt.draw()
fig1.savefig('tessstttyyy.png', dpi=100)
In your code, 'tesssttyyy.png' is blank because it is saving the new figure, to which nothing has been plotted.
...
git: Switch branch and ignore any changes without committing
...nd was ready to commit my changes, so I made a commit with a useful commit message. I then absentmindedly made minor changes to the code that are not worth keeping. I now want to change branches, but git gives me,
...
Is it possible to specify the schema when connecting to postgres with JDBC?
...
I know this was answered already, but I just ran into the same issue trying to specify the schema to use for the liquibase command line.
Update
As of JDBC v9.4 you can specify the url with the new currentSchema parameter like so:
jdbc:postgresql://localhost:5432/mydatabase?currentS...
Scroll Automatically to the Bottom of the Page
...uestions. When I click on the first question, it should automatically take me to the bottom of the page.
23 Answers
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