Develop Reference

intent-filter is not allowed?

I'm getting an "Element intent-filter is not allowed here" error. The instructions were to simply cut and paste the intent filter from WeatherActivity to MainMenuActivity since WeatherActivity was created first but it doesn't like it when I do it. What am I doing wrong?
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.introandroidapp">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.IntroAndroidApp">
<activity
android:name=".MyDrawing"
android:exported="false" />
<activity
android:name=".MainMenuActivity"
android:exported="false" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<activity
android:name=".WeatherActivity"
android:exported="true">
</activity>
</application>
</manifest>

<intent-filter> should be inside activity tag. If you want to mark MainMenuActivity as main, try something like this:
<activity
android:name=".MainMenuActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Don't forget that the main activity should have exported="true".

Remove MainActivity created by Android Studio

How can edit the manifest so the MainActivity is removed?
I've been following some tutorials to learn to create android apps and I've got stuck in the Activity subject.
When I create a project the Software gives me an deafult activity called MainActivity. I've deleted it so I could name my class as I wish.
However, even after deleting the files the activity still presents on the Manifest. I've tried to play around, deleting some words, but with no success.
This is the current manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".Activity1"></activity>
<activity android:name=".Activity2" />
<activity android:name=".MainActivity">-------<<<<<<0!!!!!!!!!!!!!
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
It has this row of content that the android studio warns me about, that I'm poiting with -------<<<<<<0!!!!!!!!!!!!!.
I recall my question: How can edit the manifest so the MainActivity is removed?

Remove the MainActivity Java file and Manifest Declaration and activity1 set as a LAUNCHER Activity
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".Activity1">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Activity2" />
</application>
</manifest>

You can create manifest like this if you want to use other activity
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".Activity1">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Activity2" />
</application>
</manifest>
This below code make activity as Main and first launched :
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

"Error running app: Default Activity not Found"

I'm programming an app with sqlite+JSON, but suddenly I couldn't Run it anymore, and it popped this message, here's my AndroidManifest.xml , Idk if there's something wrong with it, my main activity is called DatosActivity, I wish you could help me.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hitan.practica2_u3">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name="com.example.hitan.practica2_u3.DatosActivity"
android:theme="#style/AppTheme.NoActionBar"></activity>
</application>
</manifest>

You should add category.LAUNCHER & action.MAIN .
<activity
android:name="com.example.hitan.practica2_u3.DatosActivity"
android:theme="#style/AppTheme.NoActionBar"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

This error is coming because you have not added the default screen which should execute first. So try adding following code snippet, and your problem will be solved:
<activity
android:name="com.example.hitan.practica2_u3.DatosActivity"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Hope it helps.

Please Add Intent Filter Tag in Manifest To Make It Default while Launching.

Add this intent filter inside your activity tag
<activity
android:name="com.example.hitan.practica2_u3.DatosActivity"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

Error:Cannot read packageName from app/src/main/AndroidManifest.xml

These are the errors that pop up when running my app for splash screen.
Error:The markup in the document preceding the root element must be well-formed.
Error:Cannot read packageName from /Users/akellavamsimeher/AndroidStudioProjects/WILM/app/src/main/AndroidManifest.xml
I tried to resolve seeing posts from stackoverflow but I'm still stuck at that. Please help me fix these errors.
Here is the code.
<?xml version="1.0" encoding="utf-8"?>
< manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.pratyuvamgmail.wilm">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
android:name="com.pratyuvamgmail.wilm.Splash" />
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action
android:name="com.coderefer.androidsplashscreenexample.MAINACTIVITY"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
Below is my code...
<?xml version="1.0" encoding="utf-8"?>
< manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.pratyuvamgmail.wilm">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
android:name="com.pratyuvamgmail.wilm.Splash" />
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.coderefer.androidsplashscreenexample.MAINACTIVITY"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>

First impression is that you manifest file (src/main/AndroidManifest.xml) does not start like follows:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.package.name" >
...
</manifest>
Or it has a invalid format...
Share your manifest file and then, we will be able to see exact error

Answer from here is checking that the applicationId is set in the defaultConfig in build.gradle ,
because the applicationId in build.gradle overrides the package in <manifest>.

Your manifest is wrong, you have duplicate the tag close manifest and some tags have wrong open/close tags.
A simple example could be:
<?xml version="1.0" encoding="utf-8"?>
<manifest>
<application>
<activity>
<intent-filter>
<action />
<category />
<data />
</intent-filter>
<meta-data />
</activity>
<activity-alias>
<intent-filter> . . . </intent-filter>
<meta-data />
</activity-alias>
<service>
<intent-filter> . . . </intent-filter>
<meta-data/>
</service>
<receiver>
<intent-filter> . . . </intent-filter>
<meta-data />
</receiver>
<provider>
<grant-uri-permission />
<meta-data />
<path-permission />
</provider>
<uses-library />
</application>
</manifest>
Check android documentation for more info:
https://developer.android.com/guide/topics/manifest/manifest-intro.html
Check if works this code for you:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.pratyuvamgmail.wilm">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>

Merging android manifest files, conflicting filter

I'm trying to combine android manifest files from 2 plugins in Unity, but there are two activities with the same intent-filter and I can only get 1 or the other to work at the same time....
Of the 2 conflicting activities, whichever is on top in the manifest file is the one that will work. So if activity from manifest #1 is on top, plugin #1 will work but not #2, and vice versa.
The two conflicting activities are:
<activity
android:name="com.devfo.andutils.DevfoUnityPlayerActivity"
android:label="#string/app_name"
android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
And:
<activity android:name="com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity"
android:label="#string/app_name" android:screenOrientation="portrait"
android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
is there any way I can merge the two and get them to work from the same app? I'm using Unity 3d.

For example in the manifest where you want to use only the first activity as launcher you have to add this 2 modifications:
At the beginning of the manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
And for the activity for which you want to remove the intent filter add this code:
<activity android:name="com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity"
android:label="#string/app_name" android:screenOrientation="portrait"
android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
<intent-filter tools:node="removeAll">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
The important part is to add the tools:node="removeAll" attribute in the intent-filter tag

Declare your manifest header like this:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
And then add one of the following appropriate attributes to the relevant Activity(s):
tools:merge="override"
tools:merge="remove"

Slightly different to #amarkovits answer, I've found success with:
<activity android:name="com.qualcomm.QCARUnityPlayer.QCARPlayerProxyActivity"
android:label="#string/app_name" android:screenOrientation="portrait"
android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen"
tools:node="merge">
<intent-filter tools:node="remove"> ...
which I believe will try to merge it first, then replaces just the intent filter causing both Icons on the launcher screen

The Activity that has this intent-filter:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
is the main Activity that will start on application start up, you can't make both activities work at the same time.
what you should do is let only one Activity ( your main one have this filter) and leave the other one without it.
the second Activity will also be part of the application, but it will not be the first Activity you will see. You can start it by using the startActivity() method.

I have done this, the solution is that when you have multiple flavors, like
1. flavorA,
2. flavorB
and main application id is - com.android.vivek
and main flavorA is using com.android.vivek
and second flavorB is using com.android.vivek.flavorb
flavorA's manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.android.vivek">
<application xmlns:tools="http://schemas.android.com/tools"
android:allowBackup="true"
android:icon="#mipmap/flavorA_ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme"
tools:replace="android:icon" />
<activity
android:name=".ActivitySplash"
android:label="#string/app_name"
android:launchMode="singleTop"
android:screenOrientation="portrait"
tools:node="replace">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
then simply flavorB's manifest mention like below
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.android.vivek">
<application xmlns:tools="http://schemas.android.com/tools"
android:allowBackup="true"
android:icon="#mipmap/flavorB_ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme"
tools:replace="android:icon" />
<activity
android:name=".flavorB.SecondActivity"
android:label="#string/app_name"
android:launchMode="singleTop"
android:screenOrientation="portrait"
tools:node="replace">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ActivitySplash"
android:label="#string/app_name"
android:launchMode="singleTop"
android:screenOrientation="portrait">
<intent-filter tools:node="remove">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
when you run flavorA or flavorB then it will work fine