如何根据从绘制天气显示图像 [英] How to display image based on weather from drawable
本文介绍了如何根据从绘制天气显示图像的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想显示根据天气的图像。
我是从得到的图片是从绘制。
例如：
如果code = 30，将显示雨天图标
我是从
检索它 ＆LT; yweather：状态文字=小雨用迅雷code =4TEMP =25日期=星期四，2013年7月18日7:58 SGT/＆GT;
下面是我的code
MainActivity.java
公共类MainActivity延伸活动{ TextView的天气;
ImageView的形象; 类MyWeather {
串conditiontext;
串conditiondate; 串numberOfForecast;
串预测; 公共字符串的toString（）{ 回归\\正
+天气+图像+\\ n +条件：+ conditiontext +\\ n
+ conditiondate +\\ n +\\ n
+号预测：+ numberOfForecast +\\ n
+预测; }
} @覆盖
保护无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
天气=（的TextView）findViewById（R.id.weather）;
图像=（ImageView的）findViewById（R.id.image）; 线程MyThread的=新主题（新的Runnable（）{ @覆盖
公共无效的run（）{
串weatherString = QueryYahooWeather（）;
文档weatherDoc = convertStringToDocument（weatherString）; 最后MyWeather weatherResult = parseWeather（weatherDoc）;
runOnUiThread（新的Runnable（）{ @覆盖
公共无效的run（）{
weather.setText（weatherResult.toString（））;
}}）; }}）;
myThread.start（）;
} 私人MyWeather parseWeather（文档srcDoc）{ MyWeather myWeather =新MyWeather（）; //<yweather:condition.../>
节点conditionNode = srcDoc.getElementsByTagName（yweather：条件）。项目（0）;
如果（conditionNode.getTextContent（）。等于（11））{
image.setImageResource（R.drawable.logo）;
}
其他{ image.setImageResource（R.drawable.old）;
}
myWeather.conditiontext = conditionNode.getAttributes（）
.getNamedItem（文本）
.getNodeValue（）
的ToString（）;
myWeather.conditiondate = conditionNode.getAttributes（）
.getNamedItem（DATE）
.getNodeValue（）
的ToString（）; //相加得到的＆LT元素; yweather：预测... /＆GT;
节点列表forecastList = srcDoc.getElementsByTagName（yweather：预期）; myWeather.forecast =;
如果（forecastList.getLength（）大于0）{
myWeather.numberOfForecast =将String.valueOf（forecastList.getLength（））;
的for（int i = 0; I＆LT; forecastList.getLength（）;我++）{
节点forecastNode = forecastList.item（ⅰ）;
myWeather.forecast + =
forecastNode
.getAttributes（）
.getNamedItem（DATE）
.getNodeValue（）
的ToString（）++
forecastNode
.getAttributes（）
.getNamedItem（文本）
.getNodeValue（）
的ToString（）+
高：+ forecastNode
.getAttributes（）
.getNamedItem（高）
.getNodeValue（）
的ToString（）+
低+ forecastNode
.getAttributes（）
.getNamedItem（低）
.getNodeValue（）
的ToString（）+\\ n;
}
}其他{
myWeather.numberOfForecast =没有预测;
} 返回myWeather;
} 私人文件convertStringToDocument（的字符串src）{ 文档DEST = NULL;
的DocumentBuilderFactory dbFactory =
DocumentBuilderFactory.newInstance（）;
的DocumentBuilder分析器; 尝试{
解析器= dbFactory.newDocumentBuilder（）;
DEST = parser.parse（新ByteArrayInputStream进行（src.getBytes（）））;
}赶上（E1的ParserConfigurationException）{
e1.printStackTrace（）;
Toast.makeText（MainActivity.this，
e1.toString（），Toast.LENGTH_LONG）.show（）;
}赶上（SAXException的E）{
e.printStackTrace（）;
Toast.makeText（MainActivity.this，
e.toString（），Toast.LENGTH_LONG）.show（）;
}赶上（IOException异常五）{
e.printStackTrace（）;
Toast.makeText（MainActivity.this，
e.toString（），Toast.LENGTH_LONG）.show（）;
} 返回DEST;
} 私人字符串QueryYahooWeather（）{ 串QRESULT =;
字符串的queryString =http://weather.yahooapis.com/forecastrss?w=1062617&u=c; HttpClient的HttpClient的=新DefaultHttpClient（）;
HTTPGET HTTPGET =新HTTPGET（的queryString）; 尝试{
HttpEntity httpEntity = httpClient.execute（HTTPGET）.getEntity（）; 如果（httpEntity！= NULL）{
为InputStream的InputStream = httpEntity.getContent（）;
读者=新的InputStreamReader（InputStream的）;
的BufferedReader的BufferedReader =新的BufferedReader（中）;
StringBuilder的StringBuilder的=新的StringBuilder（）; 字符串stringReadLine = NULL; 而（（stringReadLine = bufferedreader.readLine（））！= NULL）{
stringBuilder.append（stringReadLine +\\ n）;
} QRESULT = stringBuilder.toString（）;
}
}赶上（ClientProtocolException E）{
e.printStackTrace（）;
Toast.makeText（MainActivity.this，
e.toString（），Toast.LENGTH_LONG）.show（）;
}赶上（IOException异常五）{
e.printStackTrace（）;
Toast.makeText（MainActivity.this，
e.toString（），Toast.LENGTH_LONG）.show（）;
} 返回QRESULT;
}}
解决方案
还是不工作？
我做出了自己的项目，如果你不喜欢这样它会工作。 ：）
的的R.id和绘图是不一样的，你需要改变的，使其工作的
TextView的天气;
ImageView的预测;
私有静态处理程序mHandler =新的处理程序（）;
类MyWeather {
串conditiontext;
串conditiondate; 串numberOfForecast;
串预测; 公共字符串forecastToString（）{ 回归\\正
+天气+你想在这里有什么东西，我只是不明白。+\\ n +条件：+ conditiontext +\\ n
+ conditiondate +\\ n +\\ n
+号预测：+ numberOfForecast +\\ n
+预测; }
} @覆盖
保护无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
天气=（的TextView）findViewById（R.id.textView1）;
预测=（ImageView的）findViewById（R.id.imageView1）; 线程MyThread的=新主题（新的Runnable（）{ @覆盖
公共无效的run（）{
串weatherString = QueryYahooWeather（）;
文档weatherDoc = convertStringToDocument（weatherString）; 最后MyWeather weatherResult = parseWeather（weatherDoc）;
runOnUiThread（新的Runnable（）{ @覆盖
公共无效的run（）{
weather.setText（weatherResult.forecastToString（））;
}}）; }}）;
myThread.start（）;
} 私人MyWeather parseWeather（文档srcDoc）{ MyWeather myWeather =新MyWeather（）; //<yweather:condition.../>
节点conditionNode = srcDoc.getElementsByTagName（yweather：条件）。项目（0）;
串天气code = conditionNode.getAttributes（）
.getNamedItem（code）
.getNodeValue（）
的ToString（）; 如果（天气code.equals（28））{ mHandler.post（新的Runnable（）{
@覆盖
公共无效的run（）{
//这个被UI线程上执行，因此可以安全地修改
//浏览 forecast.setImageResource（R.drawable.ic_launcher）;
}
}）; }
...
i would like to display an image based on the weather. The image that I'm getting from is from drawable.
For example : if the code = 30, it will display rainy day icon
I'm retrieving it from
<yweather:condition text="Light Rain with Thunder" code="4" temp="25" date="Thu, 18 Jul 2013 7:58 am SGT" />
Here is my code
MainActivity.java
public class MainActivity extends Activity {
TextView weather;
ImageView image;
class MyWeather{
String conditiontext;
String conditiondate;
String numberOfForecast;
String forecast;
public String toString(){
return "\n- "
+ "Weather:" + image + "\n"
+ "Condition: " + conditiontext + "\n"
+ conditiondate +"\n"
+ "\n"
+ "number of forecast: " + numberOfForecast + "\n"
+ forecast;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
weather = (TextView)findViewById(R.id.weather);
image = (ImageView)findViewById(R.id.image);
Thread myThread = new Thread(new Runnable(){
@Override
public void run() {
String weatherString = QueryYahooWeather();
Document weatherDoc = convertStringToDocument(weatherString);
final MyWeather weatherResult = parseWeather(weatherDoc);
runOnUiThread(new Runnable(){
@Override
public void run() {
weather.setText(weatherResult.toString());
}});
}});
myThread.start();
}
private MyWeather parseWeather(Document srcDoc){
MyWeather myWeather = new MyWeather();
//<yweather:condition.../>
Node conditionNode = srcDoc.getElementsByTagName("yweather:condition").item(0);
if(conditionNode.getTextContent().equals("11")){
image.setImageResource(R.drawable.logo);
}
else {
image.setImageResource(R.drawable.old);
}
myWeather.conditiontext = conditionNode.getAttributes()
.getNamedItem("text")
.getNodeValue()
.toString();
myWeather.conditiondate = conditionNode.getAttributes()
.getNamedItem("date")
.getNodeValue()
.toString();
//Added to get elements of <yweather:forecast.../>
NodeList forecastList = srcDoc.getElementsByTagName("yweather:forecast");
myWeather.forecast = "";
if(forecastList.getLength() > 0){
myWeather.numberOfForecast = String.valueOf(forecastList.getLength());
for(int i = 0; i < forecastList.getLength(); i++){
Node forecastNode = forecastList.item(i);
myWeather.forecast +=
forecastNode
.getAttributes()
.getNamedItem("date")
.getNodeValue()
.toString() + " " +
forecastNode
.getAttributes()
.getNamedItem("text")
.getNodeValue()
.toString() +
" High: " + forecastNode
.getAttributes()
.getNamedItem("high")
.getNodeValue()
.toString() +
" Low: " + forecastNode
.getAttributes()
.getNamedItem("low")
.getNodeValue()
.toString() + "\n";
}
}else{
myWeather.numberOfForecast = "No forecast";
}
return myWeather;
}
private Document convertStringToDocument(String src){
Document dest = null;
DocumentBuilderFactory dbFactory =
DocumentBuilderFactory.newInstance();
DocumentBuilder parser;
try {
parser = dbFactory.newDocumentBuilder();
dest = parser.parse(new ByteArrayInputStream(src.getBytes()));
} catch (ParserConfigurationException e1) {
e1.printStackTrace();
Toast.makeText(MainActivity.this,
e1.toString(), Toast.LENGTH_LONG).show();
} catch (SAXException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
}
return dest;
}
private String QueryYahooWeather(){
String qResult = "";
String queryString = "http://weather.yahooapis.com/forecastrss?w=1062617&u=c";
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(queryString);
try {
HttpEntity httpEntity = httpClient.execute(httpGet).getEntity();
if (httpEntity != null){
InputStream inputStream = httpEntity.getContent();
Reader in = new InputStreamReader(inputStream);
BufferedReader bufferedreader = new BufferedReader(in);
StringBuilder stringBuilder = new StringBuilder();
String stringReadLine = null;
while ((stringReadLine = bufferedreader.readLine()) != null) {
stringBuilder.append(stringReadLine + "\n");
}
qResult = stringBuilder.toString();
}
} catch (ClientProtocolException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
}
return qResult;
}
}
解决方案
Still not working?
I made the project myself, and if you do it like this it will work. :)
The R.id and drawables are not the same, you need to change those to make it work
TextView weather;
ImageView forecast;
private static Handler mHandler = new Handler();
class MyWeather{
String conditiontext;
String conditiondate;
String numberOfForecast;
String forecast;
public String forecastToString(){
return "\n- "
+ "Weather: " +"you wanted to have something here, I just dont understand what. " + "\n"
+ "Condition: " + conditiontext + "\n"
+ conditiondate +"\n"
+ "\n"
+ "number of forecast: " + numberOfForecast + "\n"
+ forecast;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
weather = (TextView)findViewById(R.id.textView1);
forecast = (ImageView)findViewById(R.id.imageView1);
Thread myThread = new Thread(new Runnable(){
@Override
public void run() {
String weatherString = QueryYahooWeather();
Document weatherDoc = convertStringToDocument(weatherString);
final MyWeather weatherResult = parseWeather(weatherDoc);
runOnUiThread(new Runnable(){
@Override
public void run() {
weather.setText(weatherResult.forecastToString());
}});
}});
myThread.start();
}
private MyWeather parseWeather(Document srcDoc){
MyWeather myWeather = new MyWeather();
//<yweather:condition.../>
Node conditionNode = srcDoc.getElementsByTagName("yweather:condition").item(0);
String weatherCode = conditionNode.getAttributes()
.getNamedItem("code")
.getNodeValue()
.toString();
if(weatherCode.equals("28")){
mHandler.post(new Runnable() {
@Override
public void run() {
// This gets executed on the UI thread so it can safely modify
// Views
forecast.setImageResource(R.drawable.ic_launcher);
}
});
}
...
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