Android Manifest File Not Picking Up Default Launch Activity - android

If on run/debug configuration, if I specify a launch activity, then my app runs fine, but when I select 'Launch Default Activity' I get "No Launcher activity found!" error from android adb despite the fact that I have specified the launch activity in my manifest file. I'm using android 2.1.
I've tried refreshing the file/project, clean and rebuild, deleting the file and re-writing it, creating a new project and copy/pasting all the code across and doing Android Tools -> Fix Project Properties. I've tried Android Tools-> Rename Application Package, which prompts me to update the project launch configuration (to which I say yes, but it still doesn't fix the problem).
I've also tried different devices. My Home activity extends another activity and is in its own Home.java file in my src folder. This is what my manifest file looks like:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.geogreenweb.localvore"
android:versionCode="1"
android:versionName="1.0">
<application
android:icon="#drawable/icon"
android:label="#string/general_app_name"
android:debuggable="true">
<meta-data android:name="android.app.default_searchable"
android:value=".localvorebeta6" />
<activity android:name="com.geogreenweb.localvore.Home"
android:label="#string/general_app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Quit"
android:label="Quit">
</activity>
<activity android:name="com.geogreenweb.localvore.InSeason"
android:label="In Season">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.List"
android:label="A - Z">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Local"
android:label="Local"
android:configChanges="orientation"
android:windowSoftInputMode="stateHidden">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Details"
android:label="Details">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Search"
android:label="Search">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Map"
android:label="Map"
android:windowSoftInputMode="stateHidden">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
<activity android:name="com.geogreenweb.localvore.Help"
android:label="Help">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
</application>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-sdk android:minSdkVersion="7" />
</manifest>
UPDATE: I changed one of the activity labels, and the different label appears in the app, so the changes to the manifest file are being picked up, but still I get the No Launch Activity error
UPDATE 2: I managed to solve the problem by creating a new project in the end, but only if I select the option to create an activity when making the new project, then copy/paste in the rest of the stuff into the project


if you remove the :
<action android:name="android.intent.action.SEARCH" />
it will launch normally.
i don't know why .. it just worked for me. i'm still searching why?!!
UPDATE 1:
i found this:
No Launcher activity found, despite being declared in manifest.xml
still don't know why? .. still searching for it.
UPDATE 2: GOT IT!
http://developer.android.com/guide/topics/intents/intents-filters.html
A filter has fields that parallel the action, data, and category fields of an Intent object. An implicit intent is tested against the filter in all three areas. To be delivered to the component that owns the filter, it must pass all three tests. If it fails even one of them, the Android system won't deliver it to the component — at least not on the basis of that filter. However, since a component can have multiple intent filters, an intent that does not pass through one of a component's filters might make it through on another.
in our case this means that the system sends an intent with the MAIN action and LAUNCH category. it finds an with the following:
MAIN action ..............[ pass ]
LAUNCH category .... [ pass ]
SEARCH action .........[ fail ]
but .. if you put the SEARCH action in another , the containing the MAIN and LAUNCHER criteria passes.


The only thing I can think of is the lines
<activity android:name="com.geogreenweb.localvore.Home"
Try using just
<activity android:name=".Home"
instead


Try adding the following to your main launcher Activity right next to the launcher category element.
<category android:name="android.intent.category.DEFAULT"/>

Related

Android Search Activity and android:launchMode="singleTop"

I have a single activity in my app that uses a SearchView to search (see manifest-- the search intent is intercepted).
However, when I press search, nothing happens. The activity never re-starts itself. So, I removed android:launchMode="singleTop" from my activity and then it started re-starting itself and "working." However, it is preferable to have singleTop for me so that the activity only has one instance. Why is this not working when I have singleTop?
<activity
android:name="com.brianco.andypedia.MainActivity"
android:label="#string/app_name"
android:launchMode="singleTop" >
<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.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable" android:resource="#xml/searchable" />
</activity>
<meta-data android:name="android.app.default_searchable"
android:value=".MainActivity" />

I don't know if this answers your question, but this page shows a simple searchview example with ActionBar Compat (it is the new google library compatible for the old Android versions)

You need to process your search intent on onNewIntent besides onCreate.

Android first app, all activities visible in menu

I just created my first Android app, all works fine, but all of the activities are shown on my Android menu. What did I do wrong?
Screenshot: imgur.com/9CmXU
I want to have one icon, directing to MainActivity, not all activities
<!-- language-all: lang-html -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myApps.birthdaymeter"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/my_logo"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BirthdayMeter"
android:label="#string/title_activity_birthday_meter" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".AboutWindow"
android:label="#string/title_activity_about_window" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ShowResult"
android:label="#string/title_activity_show_result" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
This is my manifest, changing logo didn't help

The <intent-filter> tag is used to describe the type of Intents that each Activity will respond to. The "android.intent.action.MAIN" action says that this Activity is an entrance point for your Application (think the main method that a java program requires). The "android.intent.category.LAUNCHER" category tells the OS to display the Activity in your list of Applications. Adding the DEFAULT category is ok, but effectively the same as omitting the <intent-filter> tag completely (which I find to make for much cleaner and easier to read code). You should only be using the <intent-filter> tag with these two actions and categories on the Activity that starts when a user opens your app. If wanted an Activity within your application to be able to respond to some special intents, you would use the tag to define which it responds to.
Here's a link to the google dev pages to help you learn more about Intent Filters.
http://developer.android.com/guide/components/intents-filters.html
Here's the documentation for the <intent-filter> tag. It's not the easiest to understand though.
http://developer.android.com/guide/topics/manifest/intent-filter-element.html
And here's the docs for the Manifest file and the Intent class. Both of these are good for reference if you're not sure about which tags to use in your Manifest. Good luck!
http://developer.android.com/guide/topics/manifest/manifest-intro.html
http://developer.android.com/reference/android/content/Intent.html

You phrased your question extremely generally, so I am not sure what to answer. It seems like you haven't called nameOfActivity.this.finish() when you launched another activity

If you post your manifest file I can help a little more, but it looks to me like you have not declared your activities correctly.
It should be setup somewhat like this:
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name="Activity1"></activity>
<activity android:name="Activity2"></activity>
<activity android:name="Activity3"></activity>
</application>
Essentially, create an application declaration, and then include each activity within it.

What does it mean "No Launcher activity found!"

I am writing a simple program of Android, and getting these no errors, I don't know what they are. My program is right, but showing not output.
I think it is because of these two lines:
[2005-01-06 19:56:38 - my_Android] No Launcher activity found!
[2005-01-06 19:56:38 - my_Android] The launch will only sync the application package on the device!

Here's an example from AndroidManifest.xml. You need to specify the MAIN and LAUNCHER in the intent filter for the activity you want to start on launch
<application android:label="#string/app_name" android:icon="#drawable/icon">
<activity android:name="ExampleActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

Multiple action tags in a single intent-filter tag will also cause the same error.

Like Gusdor said above, "Multiple action tags in a single intent-filter tag will also cause the same error." (Give him the credit! I could just kiss Gusdor for this!)
I didn't find any docs for this fact!
I had added a new (USB) action and being clever, I lumped it in the same intent-filter. And it broke the launch.
Like Gusdor said, one intent filter, one action!
Apparently each action should go in its own intent filter.
It should look like this...
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>
When I did this, WAZOO! it worked!

Do you have an activity set up the be the launched activity when the application starts?
This is done in your Manifest.xml file, something like:
<activity android:name=".Main" 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>
</activity>

Check your manifest.xml. Make sure you have the category LAUNCHER there.
<activity android:name=".myActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

It means you didn't specify an Activity for Android to launch as the default when the app opens from the launcher. You have to add an Intent Filter in the Manifest for the Activity you would like to act as the default when the app is being launched.
Read http://developer.android.com/guide/topics/intents/intents-filters.html#ccases for more details.

I fixed the problem by adding activity block in the application tag. I created the project using wizard, I don't know why my AdroidManifest.xml file was not containing application block? I added the application block:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".ToDoListActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
And I get the desired output on the emulator.

As has been pointed out, this error is likely caused by a missing or incorrect intent-filter.
I would just like to add that this error also shows up if you set android:exported="false" on your launcher activity (in the manifest).

I had this same problem and it turns out I had a '\' instead of a '/' in the xml tag. It still gave the same error but just due to a syntax problem.

If you are using the standard eclipse IDE provided by google for Android development, you can check the "Launcher Activity" check-box while creating a new Activity. Please find below:

In Eclipse when can do this:
But it is preferable make the corresponding changes inside the Android manifest file.

You missed in specifying the intent filter elements in your manifest file.Manifest file is:
<application android:label="#string/app_name" android:icon="#drawable/icon">
<activity android:name="Your Activity Name"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Add and check this correctly. Hope this will help..

Manifest is case sensitive, so please compare this lines for any case mismatch especially the word MAIN in:
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

You can add launcher to activity in eclipse manifest visual editor:

MAIN will decide the first activity that will used when the application will start.
Launcher will add application in the application dashboard.
If you have them already and you are still getting the error message but maybe its because you might be using more than more category or action in an intent-filter. In an intent filter there can only be one such tag. To add another category, put it in another intent filter, like the following
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!--
TODO - Add necessary intent filter information so that this
Activity will accept Intents with the
action "android.intent.action.VIEW" and with an "http"
schemed URL
-->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="http" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>

just add this to your aplication tag in AndroidManifest.xml file
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
and also edit the uses-sdk tag from android:targetSdkVersion="16" to 17
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />

You have not included Launcher intent filter in activity you want to appear first, so it does not know which activity to start when application launches, for this tell the system by including launcher filter intent in manifest.xml

One application installed, show two entries in launcher

In Android, how to implement the following effect?
Install just one application, but in the launcher, there are two entries, and entering each will go to different ui.
Just like google map, you can see only one application, but there are map and navigation entries.
Thanks.

You need to add category as android.intent.category.LAUNCHER for both of the activities in AndroidManifest.xml
Example:
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name=".MyActivity1" android:label="#string/app_name">
<intent-filter>
....
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MyActivity2" android:label="#string/app_name">
<intent-filter>
....
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

Issue with launching Android application via Intents

My problem is thus; I am new to programming on the ANDROID platform and have a 'working' application that piggy-backs on the API-Docs example. I wish it to launch three tabs one containing a list of reports, one a form to file a report and the last to show the geo-located reports. It doesn't appear as a separate application, it instead appears as a list to be launched by the API-Docs example. Below is my manifest code...
<activity android:name=".HelloFlamingos">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<activity android:name=".Controls2" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.TAB" />
</intent-filter>
</activity>
<activity android:name=".List1" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.TAB" />
</intent-filter>
</activity>
<activity android:name=".ReviewTab" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.TAB" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="3" />
HelloFlamingos is the initial page that I wish to be displayed, I realise that the intents for this are wrong, have thought about using category: VIEWS, action: DEFAULT, however is seemingly unwilling to work. Thanks!

In what context is the activity started? If you're looking to have the HelloFlamingos activity the first displayed from the Android OS, you should change its category in the manifest to category.LAUNCHER.
If you're looking to start the activity from elsewhere in your app, create an Intent which matches what you've specified (category.SAMPLE_CODE) and use startActivity or startActivityForResult.

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