Author: sundyzlh

sundyandroid/Demos/SundyAndroidDemo/.settings/org.eclipse.core.resources.prefs

@@ -1,7 +1,8 @@
-#Thu May 26 20:50:54 KST 2011
+#Sat Jun 11 16:34:25 KST 2011
 eclipse.preferences.version=1
 encoding//src/sundy/android/demo/LauncherActivity.java=UTF-8
 encoding//src/sundy/android/demo/SundyAndroidDemoApplication.java=UTF-8
 encoding//src/sundy/android/demo/configration/CommonConstants.java=UTF-8
+encoding//src/sundy/android/demo/processthread/AsyncTaskTestActivity.java=UTF-8
 encoding//src/sundy/android/demo/processthread/ProcessLifecycleActivity.java=UTF-8
 encoding//src/sundy/android/demo/processthread/ThreadConceptActivity.java=UTF-8

sundyandroid/Demos/SundyAndroidDemo/AndroidManifest.xml

@@ -61,6 +61,13 @@
 			</intent-filter>
 		</activity>
 
+		<activity android:name=".processthread.AsyncTaskTestActivity" android:label="@string/process_asynctask">
+			<intent-filter>
+				<action android:name="android.intent.action.MAIN" />
+				<category android:name="android.intent.category.SAMPLE_CODE" />
+			</intent-filter>
+		</activity>
+		
 		<service android:name=".service.LauncherService">			
 		</service>
     </application>

sundyandroid/Demos/SundyAndroidDemo/default.properties

@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-8
+target=android-4

sundyandroid/Demos/SundyAndroidDemo/res/layout/layout_asynctask.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  android:layout_width="fill_parent"
+  android:orientation="vertical"
+  android:layout_height="fill_parent">
+<EditText android:text="" android:id="@+id/editTextState2" android:layout_height="wrap_content" android:layout_width="fill_parent"></EditText>
+<ProgressBar android:id="@+id/progress_bar2"
+    android:layout_width="200dip" android:layout_height="10dip"
+     android:layout_gravity="center"
+    android:max="100" style="?android:attr/progressBarStyleHorizontal"
+    android:progress="0"/>
+<TextView android:id="@+id/text_view2" android:layout_width="fill_parent" android:layout_height="wrap_content"></TextView>
+<Button android:id="@+id/update_button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Update"/>
+</LinearLayout>

sundyandroid/Demos/SundyAndroidDemo/res/values/strings.xml

@@ -8,4 +8,5 @@
 	<string name="process_activitymaintest">应用框架/Activity/Activity介绍及生命周期</string>
 	<string name="process_threadconcept">应用框架/进程和线程/线程概述</string>
 	<string name="process_handlerconcept">应用框架/进程和线程/Handler-不可缺少的异步</string>
+	<string name="process_asynctask">应用框架/进程和线程/AsyncTask-异步任务</string>
 </resources>

sundyandroid/Demos/SundyAndroidDemo/src/sundy/android/demo/LauncherActivity.java

@@ -9,11 +9,13 @@
 import java.util.Map;
 
 import sundy.android.demo.configration.CommonConstants;
+
 import android.app.ListActivity;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.widget.ListView;
 import android.widget.SimpleAdapter;

sundyandroid/Demos/SundyAndroidDemo/src/sundy/android/demo/SundyAndroidDemoApplication.java

@@ -3,9 +3,9 @@
  */
 package sundy.android.demo;
 
-import sundy.android.demo.configration.CommonConstants;
 import android.app.Application;
 import android.util.Log;
+import sundy.android.demo.configration.*;
 
 /**
  * @author sundy

sundyandroid/Demos/SundyAndroidDemo/src/sundy/android/demo/processthread/AsyncTaskTestActivity.java

@@ -0,0 +1,113 @@
+package sundy.android.demo.processthread;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.DefaultHttpClient;
+
+import sundy.android.demo.R;
+
+import android.app.Activity;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+public class AsyncTaskTestActivity extends Activity {
+
+	EditText asEditText = null ;
+	TextView asTextView = null ;
+	ProgressBar asProgressBar = null ;
+	Button asButton = null ;
+	
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		// TODO Auto-generated method stub
+		super.onCreate(savedInstanceState);
+		this.setContentView(R.layout.layout_asynctask) ;
+		asEditText = (EditText)this.findViewById(R.id.editTextState2)  ;
+		asTextView = (TextView)this.findViewById(R.id.text_view2)  ;
+		asProgressBar = (ProgressBar)this.findViewById(R.id.progress_bar2)  ;
+		asButton = (Button)this.findViewById(R.id.update_button2)  ;
+		
+		asButton.setOnClickListener(new OnClickListener()
+		{
+
+			@Override
+			public void onClick(View v) {
+				// TODO Auto-generated method stub
+				if(asEditText.getText() != null && !asEditText.getText().equals(""))
+				{
+					new WebGetAsyncTask().execute(asEditText.getText().toString())  ;
+				}
+				
+			}
+			
+		})  ;
+	}
+
+	class WebGetAsyncTask extends AsyncTask<String,Integer,String>
+	{
+
+		@Override
+		protected void onPostExecute(String result) {
+			// TODO Auto-generated method stub
+			super.onPostExecute(result);
+			asTextView.setText(result) ;
+		}
+
+		
+
+		@Override
+		protected void onProgressUpdate(Integer... values) {
+			// TODO Auto-generated method stub
+			super.onProgressUpdate(values);
+			//asProgressBar.setProgress(values)
+		}
+
+
+
+		@Override
+		protected String doInBackground(String... params) {
+			try {    
+                HttpClient client = new DefaultHttpClient();    
+                // params[0] is connectivity url 
+                HttpGet get = new HttpGet(params[0]);    
+                HttpResponse response = client.execute(get);    
+                HttpEntity entity = response.getEntity();    
+                long length = entity.getContentLength();    
+                InputStream is = entity.getContent();    
+                String s = null;    
+                if (is != null) {    
+                        ByteArrayOutputStream baos = new ByteArrayOutputStream();    
+                        byte[] buf = new byte[128];    
+                        int ch = -1;    
+                        int count = 0;    
+                        while ((ch = is.read(buf)) != -1) {    
+                                baos.write(buf, 0, ch);    
+                                count += ch;    
+                                if (length > 0) {    
+                                        // call publishProgress（）update progress     
+                                        publishProgress((int) ((count / (float) length) * 100));    
+                                }    
+                                // sleep 100
+                                Thread.sleep(100);    
+                        }    
+                        s = new String(baos.toByteArray());                        }       
+                return s;    
+        } catch (Exception e) {    
+                e.printStackTrace();    
+        }    
+        return null;
+		}
+		
+	}
+}

sundyandroid/Demos/SundyAndroidDemo/src/sundy/android/demo/processthread/MyThreadHandler.java

@@ -0,0 +1,17 @@
+package sundy.android.demo.processthread;
+
+import sundy.android.demo.configration.CommonConstants;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+
+public class MyThreadHandler extends Handler {
+
+	@Override
+	public void handleMessage(Message msg) {
+		// TODO Auto-generated method stub
+		super.handleMessage(msg);
+		Log.i(CommonConstants.LOGCAT_TAG_NAME, "Get the message by Handler Thread")  ;
+	}
+
+}