我的问题与此问题有关:link。我最近将用于Android的大部分资源从用于不同分辨率的不同png文件更改为矢量绘图。我正在使用"swipe-to-delete" library可以在滑动期间更改其视图的背景,以显示带有垃圾桶图标的Gmail风格红色背景,类似于此(具有带检查图标的绿色背景):
我曾经使用以下代码执行此操作,而我仍然使用< API 21
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<color android:color="@color/accent"/>
</item>
<item android:right="@dimen/activity_horizontal_margin">
<bitmap
android:gravity="right|center_vertical"
android:src="@drawable/ic_delete_24dp"/>
</item>
</layer-list>
但是,API 21 +
需要不同的语法<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<color android:color="@color/accent" />
</item>
<item android:right="@dimen/activity_horizontal_margin"
android:drawable="@drawable/ic_delete_24dp"
android:gravity="right|center_vertical"/>
</layer-list>
现在,不是左/右侧的图标,而是API 21上的图标&amp; API 22(Lollipop)被拉伸以填满屏幕。有没有办法指定图标的宽度?
答案 0 :(得分:0)
将此添加到您的应用级build.gradle文件
[HttpPost]
public ActionResult DoSomething(PostViewModel model)
{
//////////////////////////
/*
* The code in this section should run asynchronously (in another thread I guess).
* That means the UI should not wait for any of these operations to end.
*
* */
ComputeHeavyOperations();
//////////////////////////
//the response should be returned immediatelly
return Json("Heavy operations have been triggered.");
}
private void ComputeHeavyOperations()
{
//execute some heavy operations; like encoding a video
}