大约有 40,000 项符合查询结果（耗时：0.0672秒） [XML]
Can I change the Android startActivity() transition animation?
..., in the new activity, run another animation. See this code:
fadein.xml
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<alpha android:fromAlpha="1.0"
android:toAlpha="0.0"
android:duration="500"/> //Time in ...
Why aren't programs written in Assembly more often? [closed]
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@dwelch: I guess there might be some script-kiddies who don't bother to find out how they're tools are used. But I doubt people like them would ever be able to write fast assembler code.
– Niki
Apr 22 '10 at 6:51
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Inputting a default image in case the src attribute of an html is not valid?
Is there any way to render a default image in an HTML <img> tag, in case the src attribute is invalid (using only HTML)? If not, what would be your lightweight way to work around it?
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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable
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I think Enumerable.Empty<T> is better because it is more explicit: your code clearly indicates your intentions. It might also be a bit more efficient, but that's only a secondary advantage.
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How to apply two CSS classes to a single element
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1) Use multiple classes inside the class attribute, separated by whitespace (ref):
<a class="c1 c2">aa</a>
2) To target elements that contain all of the specified classes, use this CSS selector (no space) (ref):
.c1.c2...
builder for HashMap
...opy-constructor and let it copy content of map created via Map.of(..)
Map<Integer, String> map = new HashMap<>( Map.of(1,"a", 2,"b", 3,"c") );
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How to Reverse Fragment Animations on BackStack?
... have used the following and its working like a charm
slide_in_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="@android:integer/config_mediumAnimTime" >
<objectAnimator
xmlns:android="h...
LINQ equivalent of foreach for IEnumerable
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There is no ForEach extension for IEnumerable; only for List<T>. So you could do
items.ToList().ForEach(i => i.DoStuff());
Alternatively, write your own ForEach extension method:
public static void ForEach<T>(this IEnumerable<T> enumeration, Action<T> act...
Does Python support short-circuiting?
...cs; they evaluate each element of a sequence in-order, until finding a result that allows an early exit in the evaluation. Consider examples below to understand both.
The function any() checks if any element is True. It stops executing as soon as a True is encountered and returns True.
>>&...
Android ListView headers
...ou the right type of View in convertView automatically.
Here what the result of the code below looks like:
First we have an interface that our two list item types will implement
public interface Item {
public int getViewType();
public View getView(LayoutInflater inflater, View conver...