我有两个显示器.我想制作一个媒体播放器,我想在我的辅助显示器上全屏播放视频.所以我正在尝试使用WPF制作媒体播放器
这是我写的代码到目前为止
Screen[] _screens = Screen.AllScreens;
System.Drawing.Rectangle ractagle = _screens[1].Bounds;
//player is my window
player.WindowState = WindowState.Maximized;
player.WindowStyle = WindowStyle.None;
player.Left = ractagle.X;
player.Top = ractagle.Y;
// MediaControl is an media elements
MediaControl.Height = ractagle.Height;
MediaControl.Width = ractagle.Width;
但不知何故,它只是在我的第一个显示器上播放.非常感谢任何形式的帮助.
说我有一个清单,我有一个对象.如何在列表中找到该对象的索引？
我试图一次在android sqlite数据库中插入100000条记录.我正在使用以下两种不同的方法.
private void bulkInsertDataBySavePoint(final List<User> users) {
log.debug("bulkInsertDataBySavePoint()");
DatabaseConnection conn = null;
Savepoint savepoint = null;
try {
conn = userDao.startThreadConnection();
savepoint = conn.setSavePoint("bulk_insert");
for (User user : users) {
userDao.create(user);
}
} catch (SQLException e) {
log.error("Something went wrong in bulk Insert", e);
} finally {
if (conn != null) {
try {
conn.commit(savepoint);
userDao.endThreadConnection(conn);
} catch (SQLException e) {
log.error("Something went wrong in bulk Insert", e);
}
}
}
}
和
private void bulkInsertDataByCallBatchTasks(final List<User> users) { …我想在android中创建一个自定义和复合视图.我的自定义视图将包括1个textview,5个radiobuttons两个按钮和一些图像.我不知道怎么做.如果有一些示例或代码spinet,它会很好..
我试图配置spring 3.1和hibernate.我写了一个简单的测试项目.我有用户域和userDao及其实现
让我告诉你appliationContext
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.rokonoid.apps.user.dao"></context:component-scan>
<!-- Data Source -->
<context:property-placeholder location="classpath:/jdbc.properties" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${database.driver}" />
<property name="url" value="${database.url}" />
<property name="username" value="${database.user}" />
<property name="password" value="${database.password}" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="packagesToScan" value="com.rokonoid.apps.user.domain"></property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.connection.pool_size">${hibernate.connection.pool_size}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.query.substitutions">true=1 false=0</prop>
</props>
</property>
</bean> …说我有以下简单的数据结构.
public class Player {
private Long id;
private String name;
private Integer scores;
//getter setter
}
到现在为止还挺好.现在的问题是,我如何获得球员排名？我有另一种排名数据结构,即 -
public class Ranking {
private Integer score;
private Integer rank;
//getter/setter
}
所以我有一个播放器列表,我想计算一个排名列表,我想使用java8流API.
我有一个名为PlayerService如下的服务
public class PlayerService {
@Autowired
private PlayerRepository playerRepository;
public List<Ranking> findAllRanking(Long limit) {
List<Player> players = playerRepository.findAll();
// calculation
return null;
}
计算很简单,得分最高的人排名最高.
如果我有5,7,8,9,3分数,那么排名就是
rank score
1 9
2 8
3 7
4 5
5 3
任何帮助,将不胜感激.
在AlertDialog中,我可以使用两种类型的按钮,负按钮和正按钮.但是,如果我想使用两个以上的按钮,我需要做什么？以下程序无效..
AlertDialog.Builder alert = new AlertDialog.Builder(
QuizActivity.this);
alert.setTitle("Quiz Result");
alert.setMessage("Correct Answer: "
+ scoreMode.getCorrectAnswer() + "\n"
+ "Wrong Answer: " + scoreMode.getWrongAnswer()
+ "\n" + "Total Score: "
+ scoreMode.getScorePoint() + "\n"
+ "Bonus Score: " + scoreMode.getBonusPoint());
alert.setPositiveButton("Save result",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
showSaveResultDailog(scoreMode
.getScorePoint());
}
});
alert.setNegativeButton("Play Again",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
Intent i = new Intent(QuizActivity.this,
QuizOptionActivity.class);
startActivity(i);
}
});
alert.setNegativeButton("Back to Main Menu",
new …我正在寻找以下行的等效C#代码
private List<? extends HotSpot> hotSpots;
任何帮助深表感谢.