大约有 10,000 项符合查询结果（耗时：0.0308秒） [XML]
BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
...道），用于两个连接的设备间的通讯。
0x2 BLE数据包格式在低功耗蓝牙规范中，分广播报文和数据报文这两种。设备利用广播报文发现、连接其它设备，而在连接建立之后，便开始使用数据报文。无论是广播报文还是数据报文，...
What does android:layout_weight mean?
...ws
Each view in a horizontal LinearLayout looks something like this:
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
Note that you need to use layout_width="0dp" together with layout_weight="1". Forgetting this causes many ne...
How do I align views at the bottom of the screen?
...raintBottom_toBottomOf="parent"
The example below creates a FloatingActionButton that will be aligned to the end and the bottom of the screen.
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/...
How to print HTML content on click of a button, but not the page? [duplicate]
I want to print some HTML content, when the user clicks on a button. Once the user clicks on that button, the print dialog of the browser will open, but it will not print the webpage. Instead, it will print the some other HTML content which is not displayed on the page.
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How to use __doPostBack()
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You can try this in your web form with a button called btnSave for example:
<input type="button" id="btnSave" onclick="javascript:SaveWithParameter('Hello Michael')" value="click me"/>
<script type="text/javascript">
function SaveWithParameter(paramete...
How to add hyperlink in JLabel?
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You can do this using a JLabel, but an alternative would be to style a JButton. That way, you don't have to worry about accessibility and can just fire events using an ActionListener.
public static void main(String[] args) throws URISyntaxException {
final URI uri = new URI("http://java.su...
How to get value of selected radio button?
I want to get the selected value from a group of radio buttons.
28 Answers
28
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程序员之网络安全系列（二）：如何安全保存用户密码及哈希算法 - 更多技术 ...
...安全系列（二）：如何安全保存用户密码及哈希算法前言在很多网站的早期，甚至是现在仍然有一些网站，当你点击忘记密码功能时，你的邮箱会收到一封邮件，然后里面赫然写着你的密码，很多普通...前言
在很多网站的早期...
How to prevent sticky hover effects for buttons on touch devices
I have created a carousel with a previous and a next button that are always visible. These buttons have a hover state, they turn blue. On touch devices, like iPad, the hover state is sticky, so the button stays blue after tapping it. I don't want that.
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How exactly does the android:onClick XML attribute differ from setOnClickListener?
From that I've read you can assign a onClick handler to a button in two ways.
17 Answers
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