Merge pull request #881 from Pyanz/master

#91 #93 #95 #68 lab 9实现获取网上xml文件并解析其文本内容

app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901227/MainActivity.java

@@ -0,0 +1,205 @@
+package com.example.messagebrower;
+
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import com.example.messagebrower.domain.Messages;
+import com.loopj.android.image.SmartImageView;
+
+import android.renderscript.ScriptGroup.Input;
+import android.support.v7.app.ActionBarActivity;
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.provider.Telephony.Sms.Conversations;
+import android.util.Xml;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+public class MainActivity extends Activity {
+
+	List<Messages> messagesList;
+
+	Handler handler = new Handler(){
+		public void handleMessage(android.os.Message msg) {
+			ListView lv = (ListView) findViewById(R.id.lv);
+			lv.setAdapter(new MyAdapter());
+		}
+	};
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_main);
+
+		getMessageInfo();
+
+		//ListView lv = (ListView) findViewById(R.id.lv);
+		//此时消息信息还没有解析完毕，messagesList还没有new出来
+		//lv.setAdapter(new MyAdapter());
+	}
+
+	class MyAdapter extends BaseAdapter{
+
+		//返回的要显示的数量
+		@Override
+		public int getCount() {
+			return messagesList.size();
+		}
+
+		//返回一个View对象，会作为ListView的一个条目显示在界面上
+		@Override
+		public View getView(int position, View convertView, ViewGroup parent) {
+			Messages messages = messagesList.get(position);
+			View v = null;
+			if (convertView == null) {
+				v = View.inflate(MainActivity.this, R.layout.item_listview, null);
+			}
+			else{
+				v = convertView;
+			}
+
+			//View v = View.inflate(MainActivity.this, R.layout.item_listview, null);
+
+			//给条目中的每个组件设置要显示的内容
+			TextView username = (TextView) v.findViewById(R.id.username);
+			username.setText(messages.getToUserName());
+			TextView createtime = (TextView) v.findViewById(R.id.createtime);
+			createtime.setText(messages.getCreateTime());
+			TextView content = (TextView) v.findViewById(R.id.content);
+			content.setText(messages.getContent());
+
+			SmartImageView siv = (SmartImageView) v.findViewById(R.id.siv);
+			siv.setImageUrl(messages.getImageUrl());
+
+			return v;
+		}
+
+		@Override
+		public Object getItem(int position) {
+			// TODO Auto-generated method stub
+			return messagesList.get(position);
+		}
+
+		@Override
+		public long getItemId(int position) {
+			// TODO Auto-generated method stub
+			return position;
+		}
+
+	}
+
+	private void getMessageInfo() {
+
+		Thread t = new Thread(){
+			@Override
+			public void run() {
+				String path = "https://raw.githubusercontent.com/Pyanz/Test/master/drawable/messages.xml";
+				//String path = "http://192.168.0.101:8080/messages.xml";
+				try {
+					URL url = new URL(path);
+					HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+					conn.setRequestMethod("GET");
+					conn.setConnectTimeout(8000);
+					conn.setReadTimeout(8000);
+
+					if (conn.getResponseCode() == 200) {
+						//流里面的信息是一个xml文件的文本信息，用xml解析器解析而不要作为文本去解析
+						InputStream is = conn.getInputStream();
+						getMessagesFromStream(is);
+					}
+				} catch (Exception e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+
+			}
+		};
+		t.start();
+	}
+
+	private void getMessagesFromStream(InputStream is) {
+
+		XmlPullParser xp = Xml.newPullParser();
+		try {
+			xp.setInput(is,"utf-8");
+
+			//获取事件类型，通过事件类型判断出当前解析的是什么节点
+			int type = xp.getEventType();
+
+			Messages messages = null;
+			while (type != XmlPullParser.END_DOCUMENT) {
+				switch (type) {
+				case XmlPullParser.START_TAG:
+					if ("messageslist".equals(xp.getName())) {
+						messagesList = new ArrayList<Messages>();
+					}
+					else if ("message".equals(xp.getName())) {
+						messages = new Messages();
+					}
+					else if ("ToUserName".equals(xp.getName())) {
+						String ToUserName = xp.nextText();
+						messages.setToUserName(ToUserName);
+					}
+					else if ("CreateTime".equals(xp.getName())) {
+						String CreateTime = xp.nextText();
+						messages.setCreateTime(CreateTime);
+					}
+					else if ("Content".equals(xp.getName())) {
+						String Content = xp.nextText();
+						messages.setContent(Content);
+					}
+					else if ("imageUrl".equals(xp.getName())) {
+						String imageUrl = xp.nextText();
+						messages.setImageUrl(imageUrl);
+					}
+					break;
+
+				case XmlPullParser.END_TAG:
+					if ("message".equals(xp.getName())) {
+						messagesList.add(messages);
+					}
+					break;
+				}
+				//指针移动到下一个节点并返回事件类型
+				type = xp.next();
+			}
+			//发送消息，让主线程刷新ListView
+			handler.sendEmptyMessage(1);
+
+//			for (Messages n : messagesList) {
+//				System.out.println(n.toString());
+//			}
+
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+
+	}
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+

app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901227/Messages.java

@@ -0,0 +1,42 @@
+package com.example.messagebrower.domain;
+
+public class Messages {
+
+	private String ToUserName;
+	private String CreateTime;
+	private String Content;
+	private String imageUrl;
+	public String getToUserName() {
+		return ToUserName;
+	}
+	public void setToUserName(String toUserName) {
+		this.ToUserName = toUserName;
+	}
+	public String getCreateTime() {
+		return CreateTime;
+	}
+	public void setCreateTime(String createTime) {
+		this.CreateTime = createTime;
+	}
+	public String getContent() {
+		return Content;
+	}
+	public void setContent(String content) {
+		this.Content = content;
+	}
+	public String getImageUrl() {
+		return imageUrl;
+	}
+	public void setImageUrl(String imageUrl) {
+		this.imageUrl = imageUrl;
+	}
+	@Override
+	public String toString() {
+		return "Messages [ToUserName=" + ToUserName + ", CreateTime="
+				+ CreateTime + ", Content=" + Content + ", imageUrl="
+				+ imageUrl + "]";
+	}
+
+
+
+}