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What is the difference between Fragment and FragmentActivity?
... and not FragmentActivity to hold your Fragments.
Some details:
Use android.app.Fragment with Activity. Use android.support.v4.app.Fragment with FragmentActivity. Don't add the support package Fragment to an Activity as it will cause an Exception to be thrown.
A thing to be careful with: Fragment...
explicit casting from super class to subclass
... a dog:
Animal animal = new Dog();
Generally, downcasting is not a good idea. You should avoid it. If you use it, you better include a check:
if (animal instanceof Dog) {
Dog dog = (Dog) animal;
}
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How to handle screen orientation change when progress dialog and background thread active?
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When you switch orientations, Android will create a new View. You're probably getting crashes because your background thread is trying to change the state on the old one. (It may also be having trouble because your background thread isn't on the UI thread)
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Process all arguments except the first one (in a bash script)
...nv sh That's why I had problems. You example works fine, same as above provided, after I removed that shebang
– theta
Jan 29 '12 at 22:36
111
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Django admin: how to sort by one of the custom list_display fields that has no database field
..._orders.admin_order_field = 'order__count'
This way you only annotate inside the admin interface. Not with every query that you do.
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Changing the color of the axis, ticks and labels for a plot in matplotlib
...nge the color of the axis, as well as ticks and value-labels for a plot I did using matplotlib an PyQt.
3 Answers
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My pull request has been merged, what to do next?
I recently participated in a project from GitHub. I did the following:
2 Answers
2
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Convert String to Uri
How can I convert a String to a Uri in Java (Android)? i.e.:
6 Answers
6
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Twig for loop for arrays with keys
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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How is the default submit button on an HTML form determined?
....submit() or anything equivalent), then none of the submit buttons are considered successful and none of their values are included in the submitted data. (Note that if you submit the form by using submitElement.click() then the submit that you had a reference to is considered active; this doesn't r...