檢查xml中的資源並顯示android中的資源的圖標

Question

hai每一個。我是Android新手。在我的項目中，我閱讀XML文件時遇到了一些問題。在我的xml中，我包含了一些音頻和視頻路徑，並且我想通過代碼讀取xml文件，並且如果有一些音頻或視頻文件，我想在我的視圖中顯示一些圖像。可以在任何機構的電話如何閱讀XML文件。 請多關照

Answer 1

好首先你需要創建一個解析器下面是代碼來做到這一點：

公共靜態無效readTemplateFile（上下文的背景下）{

/** 
    Include File Checking 
    */ 

    try { 
     XML_Handler_Template myExHan = new XML_Handler_Template(); 

     InputStreamReader isr = new 
     FileReader(new File(Environment.getExternalStorageDirectory().getPath() + "/Library Template.xml")); 

     XML_Handler_Template.context = context; 

     SAXParserFactory spf = SAXParserFactory.newInstance(); 
     SAXParser sp = spf.newSAXParser(); 

     XMLReader xr = sp.getXMLReader(); 

     xr.setContentHandler((ContentHandler) myExHan); 

     xr.parse(new InputSource(isr)); 


    } catch (Exception e) { 

     Toast.makeText(context, ">" + e.getMessage(), Toast.LENGTH_LONG).show(); 


    } 

} 

然後，您需要一個處理程序類。在上面的例子中，我的類被稱爲XML_Handler_Template。 （新文件（Environment.getExternalStorageDirectory（）。getPath（）+「/FILEPATH/FILE.XML」））;}};}};}}

這裏是此刻卻是空白的XML_Handler_Class：

進口org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler;

公共類XML_Handler_Template擴展了DefaultHandler {

public static Context context = null; 

@Override 
public void startDocument() throws SAXException { 
    //this is called when the document is first read 
} 

@Override 
public void startElement(String namespaceURI, String localName, 
     String qName, Attributes atts) throws SAXException { 
        //This is called when a new Tag is opened 
        //localName holds the Tag Name, the Value is got from the 
        //Characters function at the end of this class 

        //the attributes for each tag are stored in the atts array, you can either handle the attribute values here or pass the information to a separate function to handle them, 
        if (atts.getLength()>0){ 
      for (int i=0;i<atts.getLength();i++){ 

       addAttrib(atts.getLocalName(i) , atts.getValue(i)) ; 

      } 
     } 
} 

@Override 
public void endElement(String namespaceURI, String localName, String qName) 
throws SAXException { 
    //This is called when a Tag is closed 
} 

@Override 
public void endDocument() throws SAXException { 
       //this is called when the document is closed 
} 

@Override 
public void characters(char ch[], int start, int length) { 
      //This is where the value of a Tag are read 
    String value = new String(ch , start , length); 
      // You may want to include a replaceAll("\r","") and replaceAll("\n","") to remove any hidden chars 

}  

}

有這樣的發揮，看看你的身體情況如何，現在= 0），我通過上下文的類，所以雖然我是學我可以用敬酒向我展示正在閱讀的價值。