Develop Reference

no launcher activity found smartatch

I'm trying to run sample for Sony site.
I attached SmartExtensionAPI and SmartExtensionUtils. I used Properties->Android->Library and checked is library.
When I ran a sample (for example HelloWidget) on Eclipse, I get this error on the console:
HelloWidget] No Launcher activity found!
HelloWidget] The launch will only sync the application package on the device!
But the installation is done... I can see the application is installed on my smartphone and I can see too on SmartConnect but not in the smartwatch.
Does anyone have an idea of what I'm doing wrong ?
EDIT:
AndroidManifest.xml
<activity android:name="com.example.sonymobile.smartextension.hellowidget.HelloWidgetPreferenceActivity"
android:label="#string/preference_activity_title" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

This is because no activity had set as a launcher to run when app is launched
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
no intent filter will be there in the code's manifest, just check it.

android app installed but not able to see

I am new to android app development. I created an app using Eclipse
and successfully installed on my device. Even it got installed on
the emulator.But, I can't see it!
I have tried everything like adding :
In manifest.xml
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
Re-installing
Tried directly sending and installing .apk to the device
(not only by running on eclipse)
Restarting my eclipse
and so on.
Let me know if any other information is required.

Its not going to be on the main page. Go to downloaded applications on your device and check if its there. Also make sure USB debugging in turned on in the developers options on your phone. Also read this.

What about checking the list of installed packages?
$ adb shell pm list packages | grep your.package.name
Or just look up the directory.
$ adb shell ls /data/app
If it's really installed but not be shown in the launcher, then it would be a manifest code issue, I think.

I got this problem few month ago, then i got that i am using more category and action tag in activity.
like this:
<activity
android:name="com.test.login.UserLogin"
android:label="#string/app_name"
android:screenOrientation="portrait"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data
android:host="t4jsample"
android:scheme="oauth" />
</intent-filter>
</activity>
but my problem solved using this:
<activity
android:name="com.test.login.UserLogin"
android:label="#string/app_name"
android:screenOrientation="portrait"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data
android:host="t4jsample"
android:scheme="oauth" />
</intent-filter>
So i want to say that please check your code and let me know that you are getting some this case in your code.

Android emulator not loading an app

Whenever I try to run an app on the Android emulator, from the eclipse in the adt bundle, the emulator loads and the console outputs this:
[2013-06-18 06:34:02 - Counter] No Launcher activity found!
[2013-06-18 06:34:02 - Counter] The launch will only sync the application package on the device!
[2013-06-18 06:34:02 - Counter] Performing sync
[2013-06-18 06:34:02 - Counter] Automatic Target Mode: launching new emulator with compatible AVD 'Anroid_emulator'
[2013-06-18 06:34:02 - Counter] Launching a new emulator with Virtual Device 'Anroid_emulator'
[2013-06-18 06:34:03 - Counter] New emulator found: emulator-5554
[2013-06-18 06:34:03 - Counter] Waiting for HOME ('android.process.acore') to be launched...
[2013-06-18 06:34:37 - Counter] HOME is up on device 'emulator-5554'
[2013-06-18 06:34:37 - Counter] Uploading Counter.apk onto device 'emulator-5554'
[2013-06-18 06:34:37 - Counter] Installing Counter.apk...
[2013-06-18 06:35:12 - Counter] Success!
[2013-06-18 06:35:12 - Counter] \Counter\bin\Counter.apk installed on device
[2013-06-18 06:35:12 - Counter] Done!

Have you checked whether your app has been installed or not by going inside the menu?
Because if you have forgotten to make your activity as the launcher activity, your app will not pop up and you may not notice that your app has already been installed.
You can make that activity as launcher in the manifest by the below given tags:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.LAUNCHER" />

I think you seem to be missing these in your manifest XML for the Activity that is the app's primary:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
For example, if your main activity is called MainActivity, it should look like this:
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/FooDzines" >
<activity
android:name="MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
....
....
</application>

app is installed but not launching on my emulator

In my emulator app installed successfully but app is not launching ,here i am pasting the console details
here i am adding manifest file as well ,i added intent-filter as well.
i hope this info is enough but stackoverflow needs some more info .
[2012-12-13 20:29:52 - PongUr2] Android Launch!
[2012-12-13 20:29:52 - PongUr2] adb is running normally.
[2012-12-13 20:29:52 - PongUr2] No Launcher activity found!
[2012-12-13 20:29:52 - PongUr2] The launch will only sync the application package on the device!
[2012-12-13 20:29:52 - PongUr2] Performing sync
[2012-12-13 20:29:52 - PongUr2] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'AVD_4.0'
[2012-12-13 20:29:52 - PongUr2] Uploading PongUr2.apk onto device 'emulator-5554'
[2012-12-13 20:29:53 - PongUr2] Installing PongUr2.apk...
[2012-12-13 20:30:00 - PongUr2] Success!
[2012-12-13 20:30:01 - PongUr2] \PongUr2\bin\PongUr2.apk installed on device
[2012-12-13 20:30:01 - PongUr2] Done!
Hereś the xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sabrebutt.pongur"
android:versionCode="49"
android:versionName="0.8.8.2" >
<application
android:icon="#drawable/icon"
android:label="#string/app_name" >
<service
android:name="PongUr"
android:enabled="true"
android:icon="#drawable/icon"
android:label="#string/app_name"
android:permission="android.permission.BIND_WALLPAPER" >
<intent-filter android:priority="1" >
<action android:name="android.service.wallpaper.WallpaperService" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</intent-filter>
<meta-data
android:name="android.service.wallpaper"
android:resource="#xml/pongur" />
</service>
<activity
android:name="PongUrSettings"
android:exported="true"
android:label="#string/pongur_settings"
android:theme="#android:style/Theme.Black" >
</activity>
</application>
<uses-sdk android:minSdkVersion="7" />
/>
</manifest>

None of your activities have launcher intent filter, Add below lines to the activity you want to launch in your manifest
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
Edit:
You cannot have an intentfilter inside an intentFilter and the launcher intent filter will not work on service, only Activities can be launched and can have UI
<activity
android:name="PongUrSettings"
android:exported="true"
android:label="#string/pongur_settings"
android:theme="#android:style/Theme.Black" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

Try going Setting -> Application(apps) --> uninstall your app & run again your app . May be it should work.Sometimes previous installation creates this type problem.Otherwise may be problem with your menifest file.

Not specific to this particular error. When app is installed and not launched, you can check the 'Launch options' in 'Run Configuration'. It should be selected as 'Default Activity'.

My app isn't appearing in my app drawer even though it has installed

Why won't the app appear in the app drawer? It says in the App Manager that it is installed but I can't seem to open the actual app as it isn't in the app drawer. It doesn't automatically open it up once it's installed either.
Here is what is said when I choose to run on my phone (which is on Jellybean). It says the same thing when I install it to an emulator.
[2012-09-19 16:20:24 - TheForeverAloneQuiz] Performing sync
[2012-09-19 16:20:24 - TheForeverAloneQuiz] Automatic Target Mode: Several compatible targets. Please select a target device.
[2012-09-19 16:20:28 - TheForeverAloneQuiz] Uploading TheForeverAloneQuiz.apk onto device '001988a8094d8e'
[2012-09-19 16:20:28 - TheForeverAloneQuiz] Installing TheForeverAloneQuiz.apk...
[2012-09-19 16:20:31 - TheForeverAloneQuiz] Success!
[2012-09-19 16:20:31 - TheForeverAloneQuiz] /TheForeverAloneQuiz/bin/TheForeverAloneQuiz.apk installed on device
[2012-09-19 16:20:31 - TheForeverAloneQuiz] Done!
Here's the android manifest.
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mikenning.foreveralonequiz"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#android:style/Theme.Light.NoTitleBar" >
<activity
android:name=".Introduction"
android:label="#string/title_activity_introduction" >
<intent-filter>
<action android:name="android.intent.action.INTRO" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".QuestionOne"
android:label="#string/title_activity_introduction" >
<intent-filter>
<action android:name="android.intent.action.QUESTIONONE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Result"
android:label="#string/title_activity_introduction" >
<intent-filter>
<action android:name="android.intent.action.RESULTS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
Anything I'm doing wrong?
SIDENOTE I also get errors saying that I do not need permission for the activities categorised as 'DEFAULT'. Could this be to do with it? I need it for the startActivity() in one of my clases so is it really not required?

I'm assuming that introduction is your first Activity. You need to add another action to it, like in the following code:
<activity
android:name=".Introduction"
android:label="#string/title_activity_introduction" >
<intent-filter>
<action android:name="android.intent.action.INTRO" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

I know it is solved question, but this solution did not work for me and I wanted to share my solution here.
I was trying to add deep link support to my app, And in the documentation the
<intent-filter android:label="#string/filter_view_http_gizmos">
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="gizmosexample"/>
</intent-filter>
I added those intent filters to my launcher activity and after app drawer stopped showing the app icon in the launcher.
So if #RaghavSood's solution above did not work, try to remove those filters or any other custom filters from the launcher activity's filters.