大约有 40,000 项符合查询结果（耗时：0.0518秒） [XML]
Display Animated GIF
...lso put (main/assets/htmls/name.gif) [with this html adjust to the size]
<html style="margin: 0;">
<body style="margin: 0;">
<img src="name.gif" style="width: 100%; height: 100%" />
</body>
</html>
declare in your Xml for example like this (main/res/layout/name.xml):...
How to stop EditText from gaining focus at Activity startup in Android
...ut or ConstraintLayout) like the following example will fix the problem.
<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="0px"
android:layout_height="0...
What is the purpose of “return await” in C#?
...urn await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
return foo.DoAnotherThingAsync();
}
}
async Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
r...
How do you match only valid roman numerals with a regular expression?
...ally restrains it to between 0 and 4000. It's a relatively simple:
0: <empty> matched by M{0}
1000: M matched by M{1}
2000: MM matched by M{2}
3000: MMM matched by M{3}
4000: MMMM matched by M{4}
You could, of course, use something like M* to allow any number (incl...
How to implement the Java comparable interface?
...
You just have to define that Animal implements Comparable<Animal> i.e. public class Animal implements Comparable<Animal>. And then you have to implement the compareTo(Animal other) method that way you like it.
@Override
public int compareTo(Animal other) {
return In...
How can I fill a div with an image while keeping it proportional?
I found this thread — How do you stretch an image to fill a <div> while keeping the image's aspect-ratio? — that is not entirely the thing that I want.
...
How to get a list of installed android applications and pick one to run
...ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> pkgAppsList = context.getPackageManager().queryIntentActivities( mainIntent, 0);
You will get all the necessary data in the ResolveInfo to start a application. You can check ResolveInfo javadoc here.
...
How does one escape backslashes and forward slashes in VIM find/search?
... characters most anywhere else in linuxy programs, with a backslash:
:%s/<dog\/>/<cat\\>
But note that you can select a different delimiter instead:
:%s@<doc/>@<cat\\>@
This saves you all typing all those time-consuming, confusing backslashes in patterns with a ton of s...
Capture Image from Camera and Display in Activity
...MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
{...
How to pass a function as a parameter in Java? [duplicate]
...ble, for example, then you pass in a Callable:
public T myMethod(Callable<T> func) {
return func.call();
}
This pattern is known as the Command Pattern.
Keep in mind you would be best off creating an interface for your particular usage. If you chose to go with callable, then you'd repl...