大约有 5,500 项符合查询结果（耗时：0.0223秒） [XML]
Combine two ActiveRecord::Relation objects
....pluck(:id)
@transactions = Transaction.where(id: transaction_ids).limit(100)
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How to make gradient background in android
...ple:
<View
android:layout_width="200dp"
android:layout_height="100dp"
android:background="@drawable/my_gradient_drawable"/>
type="linear"
Set the angle for a linear type. It must be a multiple of 45 degrees.
<gradient
android:type="linear"
android:angle="0"
andr...
How to get the CPU Usage in C#?
...ll .NextValue twice, with a System.Threading.Thread.Sleep call in-between (1000ms should suffice). See blogs.msdn.com/b/bclteam/archive/2006/06/02/618156.aspx for more information on why this is required, but the high level summary is that you need to two samples in order to calculate the value, and...
How can a Javascript object refer to values in itself? [duplicate]
...epending on where obj.key2 function is invoked. e.g. setTimeout( obj.key2, 100 ); this refers to the window object.
– Mingtao Sun
Nov 23 '16 at 4:15
...
Create web service proxy in Visual Studio from a WSDL file
...ir. Well deserved rep has been given to you. (As indirect result, you got +100 on all sites :))
– Shadow Wizard is Ear For You
Mar 13 '13 at 9:44
...
Rounded corner for textview in android
... <corners
android:radius="5dp"
android:topRightRadius="100dp" />
</shape>
TextView
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bg_rounded"
android:text="Text"
android:padding="...
How to play an android notification sound
...@Rob Riddle It is working fine. but in case of multiple notifications e.g. 100 notifications parallel the sound get mixed with next notification sound. logically if sound is already playing it should wait for completion of previous play. Can you please help in this scenario?
– ...
Selecting all text in HTML text input when clicked
...this;
setTimeout(function () { focusedElement.select(); }, 100); //select all text in any field on focus for easy re-entry. Delay sightly to allow focus to "stick" before selecting.
});
});
...
BLE（一）概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区，...
...离无线通信，正常运行时传输距离为10m（低功耗模式下为100m），频段2.4Ghz。先进行三个蓝牙术语介绍：
配对:配对是指两个蓝牙设备首次通讯时，相互确认的过程。两个蓝牙设备之间一经配对之后，随后的通讯连接就不必每次...
UILabel with text of two different colors
...
// Try it with label
let label = UILabel()
label.frame = CGRect(x: 70, y: 100, width: 260, height: 30)
let stringValue = "There are 5 results."
let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColor(color: UIColor.red, forText: "5"...