CODEWITHSUNDEEP
c#androidxamarin.formsandroid-fileprovider
Duncan Palmer
Duncan Palmer

Reputation: 2913

Xamarin Forms File Provider not set

I am currently going through the process of Learning Xamarin.Forms. I am currently attempting to implement Camera functions using the Plugin.Media.CrossMedia library.

Implemented below:

public async Task<ImageSource> StartCamera()
{
    await CrossMedia.Current.Initialize();


    if (Plugin.Media.CrossMedia.Current.IsTakePhotoSupported && CrossMedia.Current.IsCameraAvailable)
    {
            var photo = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions() { SaveToAlbum=false, SaveMetaData=false});

            if (photo != null)
                return ImageSource.FromStream(() => { return photo.GetStream(); });
            else
                return null;



    }
    else
    {
        return null;
    }
}

However upon executing the 'TakePhotoAsync' method I recieve the following error.

System.ArgumentException: Unable to get file location. This most likely means that the file provider information is not set in your Android Manifest file. Please check documentation on how to set this up in your project.

I have tried looking this up but to no avail. My AndroidManifest.xml file looks like this at the moment.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="RCPTTracker.Android" android:versionCode="1" android:versionName="1.0">
    <uses-sdk />
    <application android:label="RCPTTracker.Android"></application>
</manifest>

My inkling is that I need to declare something in here, but I haven't been able to find what, and all tutorials i have followed don't go through anything with setting up a File Provider.

Any suggestions?

Upvotes: 19

Views: 21840

Answers (10)

charles young
charles young

Reputation: 2289

In addition to these things I had to do one more thing to get rid of this error. I had manually added the xml folder and file_paths.xml into the project folder. However, I had not yet added them to the project in the solution. Once I right clicked on the Resources folder and added New Folder (xml) and Existing Item (file_paths.xml) the error went away.

Upvotes: 0

karayakar
karayakar

Reputation: 29

<provider android:name="androidx.core.content.FileProvider"
      android:authorities="APP_PACKAGE_NAME.fileprovider"
      android:exported="false"
      android:grantUriPermissions="true">

  <meta-data
         android:name="android.support.FILE_PROVIDER_PATHS"
         android:resource="@xml/file_paths"></meta-data>
</provider>

Xml must be in under xml folder

enter image description here

Upvotes: 1

Plan Man
Plan Man

Reputation: 23

Above answers resolved this issue for me. Here's what my AndroidManifest.xml looks like (using ${applicationId} for the authorities tag helps because sometimes you just don't know exactly how your app name is):

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    android:versionCode="1" android:versionName="1.0" package="com.companyname.app2">

<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="30" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<application android:label="App2.Android" android:theme="@style/MainTheme">
    <provider android:name="androidx.core.content.FileProvider" 
          android:authorities="${applicationId}.fileprovider" 
          android:exported="false" 
          android:grantUriPermissions="true">
          <meta-data android:name="android.support.FILE_PROVIDER_PATHS" 
          android:resource="@xml/file_paths"></meta-data>
    </provider>
</application>

</manifest>

Upvotes: 1

Neeraj Kumar
Neeraj Kumar

Reputation: 91

Android Support Libraries are now in the androidx.* package hierarchy instead of android.support.

So use following provider tag in you application's manifest.xml file.

<provider android:name="androidx.core.content.FileProvider" 
            android:authorities="YOUR_APP_PACKAGE_NAME.fileprovider" 
            android:exported="false" 
            android:grantUriPermissions="true">
            <meta-data android:name="android.support.FILE_PROVIDER_PATHS" 
            android:resource="@xml/file_paths"></meta-data></provider>

It must be under application tag.

Upvotes: 0

Dev Oskii
Dev Oskii

Reputation: 929

Make sure you only have one set of <application> tags

I was stuck on this error for literally weeks... Then I realised I had duplicate application tags.

defined once like this: <application android:label="App2.Android"></application>

the second set of <application> tags had the correct configuration lower down, but were being ignored. Removing the empty tags solved the issue for me.

Upvotes: 5

Ren-Heok
Ren-Heok

Reputation: 67

Marco's solution is almost right. For it to work in my project I had to change 

android:authorities="YOUR_APP_PACKAGE_NAME.fileprovider"
to
android:authorities="${applicationId}.fileprovider"

in the AndroidManifest.xml file.

Upvotes: 3

dush88c
dush88c

Reputation: 2106

With the latest version, correct XML configuration is (without adding the package name to the path)

 <?xml version="1.0" encoding="utf-8"?>
    <paths xmlns:android="http://schemas.android.com/apk/res/android">
        <external-files-path name="my_images" path="Pictures" />
        <external-files-path name="my_movies" path="Movies" />
    </paths>

If you set path combining the package name like below

<external-path name="my_images" path="Android/data/YOUR_APP_PACKAGE_NAME/files/Pictures" />

It may give this type of error.

Upvotes: 0

haldo
haldo

Reputation: 16691

The problem I had was related to case-sensitivity.

On the line below 

<provider android:name="android.support.v4.content.FileProvider"
          android:authorities="com.myexample.myapp.fileProvider"
          android:exported="false"
          android:grantUriPermissions="true">

I erroneously had a single uppercase letter on the line android:authorities="com.myexample.myapp.fileProvider". It should be:

android:authorities="com.myexample.myapp.fileprovider"  <!-- all lowercase -->

Or

android:authorities="${applicationId}.fileprovider"

The package name and value for android:authorities should be lowercase. Otherwise you will get the error:

System.ArgumentException: Unable to get file location. This most likely means that the file provider information is not set in your Android Manifest file. Please check documentation on how to set this up in your project.

Upvotes: 6

Noobie3001
Noobie3001

Reputation: 1251

In my case it was because I had put the FileProvider in the wrong place in the AndroidManifest.xml file. It needed to be inside the <Application> tags.

    <?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.myapp.app1" android:installLocation="auto">
        <uses-sdk android:minSdkVersion="22" android:targetSdkVersion="27" />
        <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
        <uses-permission android:name="android.permission.ACCESS_SURFACE_FLINGER" />
        <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
        <uses-permission android:name="android.permission.BROADCAST_WAP_PUSH" />
        <uses-permission android:name="android.permission.CAMERA" />
        <uses-permission android:name="android.permission.INTERNET" />
        <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
        <uses-permission android:name="android.permission.RECEIVE_WAP_PUSH" />
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
        <uses-permission android:name="android.permission.WRITE_SETTINGS" />
        <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
        <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
        <application android:label="app1.Android">
            <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyCZF1O9_7-MXlxYfAEIxBQkr-dR8RiwiYE" />

            <!-- ADD FILE PROVIDER HERE -->
            <provider android:name="android.support.v4.content.FileProvider"
                  android:authorities="com.myapp.app1.fileprovider"
                  android:exported="false"
                  android:grantUriPermissions="true">
              <meta-data android:name="android.support.FILE_PROVIDER_PATHS"
              android:resource="@xml/file_paths"></meta-data>
            </provider>

        </application>
    </manifest>

Upvotes: 11

Marco
Marco

Reputation: 254

The readme says:

If your application targets Android N (API 24) or newer, you must use version 2.6.0+.

You must also add a few additional configuration files to adhere to the new strict mode:

1.) Add the following to your AndroidManifest.xml inside the tags:

<provider android:name="android.support.v4.content.FileProvider" 
                android:authorities="YOUR_APP_PACKAGE_NAME.fileprovider" 
                android:exported="false" 
                android:grantUriPermissions="true">
                <meta-data android:name="android.support.FILE_PROVIDER_PATHS" 
                android:resource="@xml/file_paths"></meta-data>
</provider>

YOUR_APP_PACKAGE_NAME must be set to your app package name!

2.) Add a new folder called xml into your Resources folder and add a new XML file called file_paths.xml

Add the following code:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-files-path name="my_images" path="Pictures" />
    <external-files-path name="my_movies" path="Movies" />
</paths>

YOUR_APP_PACKAGE_NAME must be set to your app package name!

You can read more at: https://developer.android.com/training/camera/photobasics.html

Upvotes: 23

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