我已经创建了一个适用于Honeycomb的AppWidget,它运行良好,除了首次安装时,它不会显示在Widgets菜单中,因此无法添加到主屏幕.重新启动设备将允许它显示,或者在开发期间,从Eclipse发送两次将导致它显示.
有任何想法吗？
谢谢!
我对java和maven都是全新的,所以这很可能非常简单.
如果我按照maven2 hello world说明进行操作:
http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html
一切正常.如果我然后更改pom.xml以从远程存储库引入依赖项,则存储此依赖项的文件~/.m2/repository/new-dependency/.
使用说明中的语法hello world来运行应用程序需要我将依赖项的绝对路径添加到我的类路径(通过设置环境变量或通过命令行开关):
java -cp target/my-app-1.0-SNAPSHOT.jar:/.../.m2/.../new-dependency.jar com.mycompany.app.App
这显然会很快变得笨拙:)
我怀疑这不是运行java程序的常用方法,而且我只需要阅读更多关于.jar文件的内容,但是在我这样做的时候,我会很感激有关如何正确执行此操作的任何提示.
我没有使用IDE,顺便说一句.vim来自命令行.
谢谢!
麦克风.
我有以下动画块:
[UIView animateWithDuration:2
animations:^{
[childViewController_.view setAlpha:0];
}
completion:^(BOOL finished) {
[childViewController_.view removeFromSuperview];
}];
当如上执行时,立即调用完成块.但是,如果我没有完成块,则按预期执行动画.
我在这做错了什么？
更新完成块中
的finished标志是NO.
我正在玩Play!框架CRUD模块,但我无法弄清楚:我的数据库表有一个created字段,基本上是一行创建的时间.我不希望我的用户设置它,我想在后端执行,只需添加当前时间.我无法弄清楚如何做到这一点.
我已经使该字段不可见@Hidden但显然现在我无法创建新行,因为它的值根本没有设置.那么我该怎么做？
我有另一个问题:我的表还有一个名为publish另一个时间戳的列.CRUD表单中此字段的当前格式为yyyy-MM-dd.我想指定一个日期,也无法弄清楚如何...
有人可以帮忙吗？
我有一个包含我的应用程序版本的文件夹,每次上传新版本时都会为它创建一个新的子文件夹,子文件夹名称是当前时间戳,这里是所用主文件夹的打印输出(ls - l | grep ^ d):
drwxrwxr-x 7 root root 4096 2011-03-31 16:18 20110331161649
drwxrwxr-x 7 root root 4096 2011-03-31 16:21 20110331161914
drwxrwxr-x 7 root root 4096 2011-03-31 16:53 20110331165035
drwxrwxr-x 7 root root 4096 2011-03-31 16:59 20110331165712
drwxrwxr-x 7 root root 4096 2011-04-03 20:18 20110403201607
drwxrwxr-x 7 root root 4096 2011-04-03 20:38 20110403203613
drwxrwxr-x 7 root root 4096 2011-04-04 14:39 20110405143725
drwxrwxr-x 7 root root 4096 2011-04-06 15:24 20110406151805
drwxrwxr-x 7 root root 4096 2011-04-06 15:36 20110406153157
drwxrwxr-x …假设我在pgAdmin中创建了一个数据库,但我想导出一个CREATE sql文件.
我怎么去生成转储？
我一直试图让图像文件在现场旋转并且正在挣扎,我找到的每个教程似乎都以不同的方式做到这一点.
有人可以指出我在这里出错的地方.
GamePlay.java
import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.widget.ImageView;
public class GamePlay extends Activity {
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gameplay);
ImageView logo = (ImageView)findViewById(R.id.mainlogo);
logo.setBackgroundResource(R.anim.rotate);
AnimationDrawable frameAnimation = (AnimationDrawable) logo.getBackground();
frameAnimation.start();
}
}
rotate.xml
<?xml version="1.0" encoding="UTF-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:pivotX="50%"
android:pivotY="50%"
android:fromDegrees="0"
android:toDegrees="360"
android:drawable="@drawable/logo" />
gameplay.xml
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="@+id/mainlogo"
android:src="@drawable/logo">
</ImageView>
有人能告诉我下面的脚本是做什么的吗？它大约每两周(总是在星期日和星期一之间)注入我们的网站.我们已经重新加载了我们的"干净"网站几十次,但它一直在发生.我们已经安装并制作了我们已经阅读的所有安全建议,但它只是不断进入我们所有的index.html文件和一些我们的php文件.
任何人都知道它的作用或来自何处？我们真的可以使用一些帮助!
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pau="rn …我有几个文件,比如,a,b,c,我想要的东西
> cat a b c
但是在a的开头是"a"."b",在b行的开头,"c",在c行的开头.我可以用python做到这一点:
#!/bin/env python
files = 'a b c'
all_lines = []
for f in files.split():
lines = open(f, 'r').readlines()
for line in lines:
all_lines.append(f + ',' + line.strip())
fout = open('out.csv', 'w')
fout.write('\n'.join(all_lines))
fout.close()
但我更喜欢在命令行中执行此操作,将一些简单的命令与管道组合在一起 运营商.
有没有一种简单的方法来实现这一目标？
谢谢.
我们有一个基于swing的前端用于企业应用程序,现在正在为它实现一个(现在更简单)JSF/Seam/Richfaces前端.
某些页面包含的字段在编辑时应导致其他字段因此而更改.我们需要立即向用户显示此更改(即他们不必按下按钮或任何其他内容).
我已成功使用h:commandButton并通过添加onchange="submit()"导致其他字段更改的字段来实现此功能.这样,表单提交在他们编辑字段时发生,其他字段作为结果更新.
这在功能上运行良好,但特别是当服务器处于显着负载(经常发生)时,表单提交可能需要很长时间,并且我们的用户在此期间继续编辑字段,然后在对onchange="submit()"请求的响应时恢复渲染.
为了解决这个问题,我希望能够实现以下目标:
好吧,我认为首先展示一下我的页面可能是最容易的.请注意,这只是一个摘录,有些页面会有很多字段和许多按钮.
<a4j:form id="mainForm">
...
<a4j:commandButton id="calculateButton" value="Calculate" action="#{illustrationManager.calculatePremium()}" reRender="mainForm" />
...
<h:outputLabel for="firstName" value=" First Name" />
<h:inputText id="firstName" value="#{life.firstName}" />
...
<h:outputLabel for="age" value=" Age" />
<h:inputText id="age" value="#{life.age}">
<f:convertNumber type="number" integerOnly="true" />
<a4j:support event="onchange" ajaxSingle="true" reRender="dob" />
</h:inputText>
<h:outputLabel for="dob" value=" DOB" />
<h:inputText id="dob" value="#{life.dateOfBirth}" styleClass="date">
<f:convertDateTime pattern="dd/MM/yyyy" timeZone="#{userPreference.timeZone}" />
<a4j:support event="onchange" …