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[1]maven依赖总结

1.依赖元素

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${springframework.version}</version>
			<type>jar</type>
			<scope>compile</scope>
		</dependency>

groupId,必选，实际隶属项目

artifactId,必选，其中的模块

version必选，版本号

type可选，依赖类型，默认jar

scope可选，依赖范围，默认compile

optional可选，标记依赖是否可选，默认false

exclusion可选，排除传递依赖性，默认空

2.依赖范围

maven项目又三种classpath（编译，测试，运行）

scope用来表示与classpath的关系，总共有五种

compile:编译，测试，运行

test:测试

provided:编译，测试

runtime:运行

system:编译，测试，同provided，但必须指定systemPath，慎用

3.传递性依赖

顾名思义，你懂的，但是传递的范围会发生改变，这个由maven自身处理，只要理解下即可

第一列为第一依赖，第二列为第二依赖，单元格为传递范围

 compiletestprovidedruntimecompilecompile__runtimetesttest__testprovidedprovided_providedprovidedruntimeruntime__runtime

4.依赖调解

传递路径长度取最短原则，传递路径长度相等时，采取最先申明原则

5.可选依赖

尽量少用，可选依赖不会被传递，需要显式申明

6.排除依赖

发现依赖包里有些包不稳定，可以排除依赖，显式的申明文档的包

		<dependency>
			<groupId>javax.mail</groupId>
			<artifactId>mail</artifactId>
			<version>1.4.1</version>
			<exclusions>
				<exclusion>
					<groupId>javax.activation</groupId>
					<artifactId>activation</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>javax.activation</groupId>
			<artifactId>activation</artifactId>
			<version>1.1</version>
		</dependency>

7.分类依赖

当同一个模块，所依赖的几个模块版本都相同时，可以使用maven里的属性做分类依赖，依赖版本升级时改一处即可

	<properties>
		<springframework.version>2.5.6</springframework.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${springframework.version}</version>
			<type>jar</type>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>${springframework.version}</version>
			<type>pom</type>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${springframework.version}</version>
			<type>jar</type>
			<scope>compile</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${springframework.version}</version>
			<type>jar</type>
			<scope>compile</scope>
		</dependency>
	</dependencies>

8.优化依赖

可概括为三个命令

mvn dependency:list

表示依赖列表，maven eclipse插件已经实现，有图形化显示，在pom.xml的dependencies页

mvn dependency:tree

表示依赖列表，maven eclipse插件已经实现，有图形化显示，在pom.xml的dependency hierarchy页

mvn dependency:analyze

查找出在编译和测试中未使用但显示声明的依赖

[2]unity StreamingAssets路径

  我们在读写例如XML和TXT文件的时候，在电脑上和手机上路径不一致，造成了很多麻烦，其实有个简单的方法，在项目工程中新建一个StreamingAssets文件夹，把你的XML和TXT文件放到这里。

using UnityEngine; 
using System.Collections; 
using System.Xml; 
using System.Xml.Serialization; 
using System.IO; 
using System.Text; 
 
public class Reward  
 { 
   public int taskNo;
   
   public Task[] task = new Task[15];
   public Attribute attribute; 
   public Reward () {} 
   public struct Task
   { 
	  [XmlAttribute("taskReward")] 
	  public string taskReward{ get; set;} 
	  public Id id1; 
	  public Id id2;
      public Id id3;
   }
   public struct Id
   {
	  [XmlAttribute("flag")] 
	  public bool flag{ get; set;} 
	  [XmlAttribute("name")] 
	  public string name{ get; set;}
	  [XmlText()]
	  public string description{get;set;}
		
   }  
}

public class AchievementManager: MonoBehaviour { 
   Reward reward ; 
   FileInfo fileInfo;
   string _data; 
	
   void Start () 
   {   
      reward = new Reward();
	  LoadXML();
   } 
   void LoadXML() 
   { 
	  if(Application.platform == RuntimePlatform.IPhonePlayer)
	  {
		 fileInfo = new FileInfo(Application.dataPath + "/Raw/" + "Achievement.xml"); 
		  StreamReader r = fileInfo.OpenText(); 
         _data = r.ReadToEnd(); 
         r.Close(); 
	  }
	  else if(Application.platform == RuntimePlatform.Android)
	  {
		 fileInfo = new FileInfo(Application.streamingAssetsPath+"/Achievement.xml");
	     StartCoroutine("LoadWWW");
	  }
	  else
	  {
		 fileInfo = new FileInfo(Application.dataPath + "/StreamingAssets/"+ "Achievement.xml"); 
		 StreamReader r = fileInfo.OpenText(); 
         _data = r.ReadToEnd(); 
         r.Close(); 
      }	  
	  if(_data.ToString() != "") 
      { 
         reward = (Reward)DeserializeObject(_data);              
      } 
   }
   void OnGUI()
   {
	   GUI.Label(new Rect(0,0,Screen.width,Screen.height),"data:"+_data);	 
	   if(Input.GetKey(KeyCode.Space))
		{
			Application.Quit(); 
		}
   }
	
	IEnumerator LoadWWW()
	{
		WWW www = new WWW(Application.streamingAssetsPath+"/Achievement.xml");
		yield return www;
		_data =www.text;
	}
   public void Save()
   {     
      _data = SerializeObject(reward);
	  StreamWriter writer; 
      fileInfo.Delete();    
	  writer = fileInfo.CreateText(); 
      writer.Write(_data);
      writer.Close(); 
   }
   string UTF8ByteArrayToString(byte[] characters) 
   {      
      UTF8Encoding encoding = new UTF8Encoding(); 
      string constructedString = encoding.GetString(characters); 
      return (constructedString); 
   } 
 
   byte[] StringToUTF8ByteArray(string pXmlString) 
   { 
      UTF8Encoding encoding = new UTF8Encoding(); 
      byte[] byteArray = encoding.GetBytes(pXmlString); 
      return byteArray; 
   } 
 
   // Here we serialize our Reward object of reward 
   string SerializeObject(object pObject) 
   {
	  string XmlizedString = null; 
      MemoryStream memoryStream = new MemoryStream(); 
      XmlSerializer xs = new XmlSerializer(typeof(Reward)); 
      XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8); 
      xs.Serialize(xmlTextWriter, pObject); 
      memoryStream = (MemoryStream)xmlTextWriter.BaseStream; 
      XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray()); 
      return XmlizedString; 
   } 
 
   // Here we deserialize it back into its original form 
   object DeserializeObject(string pXmlizedString) 
   { 
      XmlSerializer xs = new XmlSerializer(typeof(Reward)); 
      MemoryStream memoryStream = new MemoryStream(StringToUTF8ByteArray(pXmlizedString)); 
      XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8); 
      return xs.Deserialize(memoryStream); 
   } 
}

注：其实每个平台的路径都可以是Application.streamingAssetsPath+"/Achievement.xml"。但是android平台必须要用WWW加载，其他的平台貌似也可以的，自己试试哈，呵呵~~~

 

 

 

[3]展讯平台配置系统app文件位置

SC8825/device/sprd/sp8825ea/base.mk

 此文件可以配置system/app下面的apk，可以定制： 

 

PRODUCT_PROPERTY_OVERRIDES :=

PRODUCT_PACKAGES := \
	libjni_pinyinime \
	Camera \
	DeskClock \
	AlarmProvider \
	Bluetooth \
	Calculator \
	Calendar \
	CertInstaller \
	DrmProvider \
	Email \
	Exchange \
	Gallery2 \
	LatinIME \
	Music \
	MusicFX \
	Provision \
	QuickSearchBox \
	Sync \
	SystemUI \
	Updater \
	CalendarProvider \
	SyncProvider \
	bluetooth-health \
	hostapd \
	wpa_supplicant.conf \
	hciconfig \
	hcitool \
	hcidump