Head Fisrt Android Development读书笔记（2）Working with Feeds

RSS (Really Simple Syndication)

/res/drawable-hdpi/test_image.gif 

 <ImageView android:id="@+id/imageDisplay"

  android:src="@drawable/test_image">

SAXParser(cont.)

Android Permission to access Internet

UnknowHostException

AndroidMaindest.xml

<use-permission android:name="android.permission.INTERNET" />

Even after you add the use-permission tag, you may also not have the permission to access Internet. To solve this issue, this may caused by you used wireless network with wired network which is not disabled. check this:

http://stackoverflow.com/questions/2039964/how-to-connect-android-emulator-to-the-internet

Errata:

In the startElement 'if' blocks, you would change the line:

if (localName.equals("url")) { inUrl = true; }

else { inUrl = false; }

--->>

and call the .getValue("url") on your Attributes variable:

if (localName.equals("enclosure")) { inUrl = true; imageUrl=attributes.getValue("url");}

else { inUrl = false;}

then call the call to getBitmap to:if (inUrl && imageUrl != null) {image = getBitmap(imageUrl);}

android:adjustViewBounds="true" to remove space

 

TextView display text;

ImageView display image;

ScrollView make content scroll on screen.(Scroll View Can only have only one child)

 

LogCat for Android errors and log statements

HierarchyView analyze your views and layouts.