Java 如何在活动中创建的布局中添加背景图像
我用java代码创建了一个LinearLayout,但我不知道如何添加图像背景 这是我为LinearLayout提供的代码:Java 如何在活动中创建的布局中添加背景图像,java,android,image,background,Java,Android,Image,Background,我用java代码创建了一个LinearLayout,但我不知道如何添加图像背景 这是我为LinearLayout提供的代码: LinearLayout layout = new LinearLayout(this); layout.setOrientation(1); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); se
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(1);
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/** Create a new layout to display the view */
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(1);
TextView variacion[];
try {
/** Handling XML */
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
/** Send URL to parse XML Tags */
URL sourceUrl = new URL("http://www.bovalpo.com/cgi-local/xml_bcv.pl?URL=75");
/** Create handler to handle XML Tags ( extends DefaultHandler ) */
MyXMLHandler myXMLHandler = new MyXMLHandler();
xr.setContentHandler(myXMLHandler);
xr.parse(new InputSource(sourceUrl.openStream()));
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
}
/** Get result from MyXMLHandler SitlesList Object */
sitesList = MyXMLHandler.sitesList;
/** Assign textview array lenght by arraylist size */
registro = new TextView[sitesList.getRegistro().size()];
// nemotecnico = new TextView[sitesList.getNemotecnico().size()];
variacion = new TextView[sitesList.getVariacion().size()];
//category = new TextView[sitesList.getName().size()];
/** Set the result text in textview and add it to layout */
for (int i = 0; i < sitesList.getRegistro().size(); i++) {
variacion[i] = new TextView(this);
variacion[i].setText(sitesList.getVariacion().get(i));
Pattern pattern = Pattern.compile("^\\+?[0-9]+([,\\.][0-9]*)?$");
Matcher matcher = pattern.matcher(sitesList.getVariacion().get(i));
if (!matcher.matches())
variacion[i].setTextColor(Color.parseColor("#ff0000"));
else
variacion[i].setTextColor(Color.parseColor("#008000"));
layout.addView(variacion[i]);
}
/** Set the layout view to display */
setContentView(layout);
}
}
LinearLayout布局=新的LinearLayout(该布局);
布局。设置方向(1);
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/**创建新布局以显示视图*/
LinearLayout布局=新的LinearLayout(本);
布局。设置方向(1);
TextView变量[];
试一试{
/**处理XML*/
SAXParserFactory spf=SAXParserFactory.newInstance();
SAXParser sp=spf.newSAXParser();
XMLReader xr=sp.getXMLReader();
/**发送URL以解析XML标记*/
URL sourceUrl=新URL(“http://www.bovalpo.com/cgi-local/xml_bcv.pl?URL=75");
/**创建处理XML标记的处理程序(扩展DefaultHandler)*/
MyXMLHandler MyXMLHandler=新的MyXMLHandler();
xr.setContentHandler(myXMLHandler);
parse(新的InputSource(sourceUrl.openStream());
}捕获(例外e){
System.out.println(“XML-Pasing expetion=“+e”);
}
/**从MyXMLHandler SitleList对象获取结果*/
sitesList=MyXMLHandler.sitesList;
/**按arraylist大小指定textview数组长度*/
registro=newtextview[sitesList.getRegistro().size()];
//nemotecnico=newtextview[sitesList.getNemotecnico().size()];
variacion=newtextview[sitesList.getVariacion().size()];
//category=新文本视图[sitesList.getName().size()];
/**在textview中设置结果文本并将其添加到布局*/
对于(int i=0;i
使用:
其中
background
是您在res
文件夹中的背景图像。如果我在可绘制文件夹中有背景,我必须放入“@drawable/background”?
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(1);
layout.setBackgroundResource(R.drawable.background);