I am following along with the book to the key, even checked the source code, errata, etc. and I could not find out why, when I go to click the "Launch My Browser" button, it gives me an error on LogCat saying:

08-15 21:44:21.623: ERROR/AndroidRuntime(4823): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.android.MyBrowser dat=http://www.google.ca }

I have gone through both the source code and the code I have taken from the book side by side and I can't figure out why this is happening. Can someone give me a hand with this?

In my example I have the Intent calling net.learn2develop.MyBrowser, which is what's in the book. Your log entry has com.android.MyBrowser, so that could be your problem but it depends on how you've set up the project.

It could also mean that the line

<action android:name="net.learn2develop.MyBrowser" />

is not in your android manifest file under the .MyBrowserActivity activity.

@ androiduser

I thought that same exact thing, but then I got looking very carefully at the lines between the <intent-filter> in the AndroidManifest.xml file, and that is where I saw

<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<action android:name="com.android.MyBrowser"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:scheme="http"/>
</intent-filter>

as

<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<action android:name="com.android.MyBrowser"/>
<action android:name="android.intent.category.DEFAULT"/>
<data android:scheme="http"/>
</intent-filter>

so I changed action to category and it worked!! Simple reading error :P

To add more confusion to this example. I found that only "method 3" in MainActivity.java does not work. The difference between "method 2" and "method 3" is that in method 3 the additional categories are add programmatically, in method 2 the categories are added via declarations in AndroidManifest.xml.

I tried commenting out the declarations before running with method 3 but the result is still the same, from the log:

10-04 19:39:59.917: INFO/ActivityManager(67): Starting: Intent { act=net.learn2develop.MyBrowser cat=[net.learn2develop.SomeOtherApps,net.learn2develop. OtherApps] dat=http://www.amazon.com } from pid 501
10-04 19:39:59.927: DEBUG/AndroidRuntime(501): Shutting down VM
10-04 19:39:59.927: WARN/dalvikvm(501): threadid=1: thread exiting with uncaught exception (group=0x40015560)
10-04 19:39:59.937: ERROR/AndroidRuntime(501): FATAL EXCEPTION: main
10-04 19:39:59.937: ERROR/AndroidRuntime(501): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=net.learn2develop.MyBrowser cat=[net.learn2develop.SomeOtherApps,net.learn2develop. OtherApps] dat=http://www.amazon.com }

Any ideas as to what may be going on here?