Couldn't find meta-data for provider with authority

I have integrated Snapchat's Creative Kit in my Android app. After processing, I receive an image from the server in the form of Byte Array which I am saving to the disk and then sending the file to the Snapchat's Creative Kit as shown below.

 private fun downloadImage(
fileName: String,
imageByteArray: ByteArray?): Uri? {
val state = Environment.getExternalStorageState()


if (Environment.MEDIA_MOUNTED == state) {
val downloadDir = File(
Environment.getExternalStorageDirectory(), context?.getString(R.string.app_name)
)


if (!downloadDir.isDirectory) {
downloadDir.mkdirs()
}


val file = File(downloadDir, fileName)
var ostream: FileOutputStream? = null
try {
ostream = FileOutputStream(file)
ostream.write(imageByteArray)
ostream.flush()
ostream.close()
}
} catch (e: IOException) {
e.printStackTrace()
}


val snapCreativeKitApi = SnapCreative.getApi(context!!)
val snapMediaFactory = SnapCreative.getMediaFactory(context!!)
lateinit var snapPhotoFile: SnapPhotoFile
try {
snapPhotoFile = snapMediaFactory.getSnapPhotoFromFile(file)
} catch (e: SnapMediaSizeException) {
return
}
val snapPhotoContent = SnapPhotoContent(snapPhotoFile)
snapCreativeKitApi.send(snapPhotoContent)
}
}

I have also added provider in the manifest file as shown below:

  <provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths_app" />
</provider>

And in the provider_paths_app.xml, I have tried all the possible paths by referring this answer and none of them works.

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="My App Name"
path="." />
</paths>

With the above path, I am getting the below error.

Couldn't find meta-data for provider with authority my.package.name.fileprovider

All I have to do is send this image to Snapchat but I am unable to figure out what I am doing wrong. Any help will be appreciated.

107994 次浏览
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    <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>

This is my provider declaration, the value of ${applicationId} is "com.limxtop.research", make sure that the name of authorities is the same with that of the codes below.

            // Create the file where the photo should save.
File file = null;
try {
file = createImageFile();
} catch (IOException e) {
break;
}
// The second parameter is the name of authorities.
Uri uri = FileProvider.getUriForFile(this,
"com.limxtop.research.fileprovider", file);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent, fullSizeRequestCode);

So, maybe your codes post here is not complete, there you should pass "my.package.name.fileprovider" as parameter some where.

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Change the authorities to a unique name to solve the issue like

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

also in java code

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最佳答案

First, write the following tag in manifest under the <application> tag

 <provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>

Then create a xml folder in res and create a file named: provider_paths.xml and then copy paste the code:

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

And now here's where most developers make mistakes: in your script, create your File with:

FileProvider.getUriForFile(Objects.requireNonNull(getApplicationContext()),
BuildConfig.APPLICATION_ID + ".provider", file);
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mImageFromCamera = FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".fileprovider", mImageFile); android:authorities="${applicationId}.fileprovider"

authorities must be same in xml and in code

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I just removed the '$' from android:authorities="${applicationId}.provider" and it works like a charm now.

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In my case.

I have a library project .Let's call it :LibApk

When I code this : applicationId "my.package.name" in the build.grale(app)

when build gradle tell me that : Library projects cannot set applicationId.

applicationId is set to 'com.darcy.apkupdate' in default config.

So ,I delete applicationId "my.package.name" .

Then ,build.gradle look like this : enter image description here

But I forgot update the AndroidManifest.xml file which use ${applicationId}

enter image description here

This is the problem!!!

So I changed the variable to constant .The result looks like below picture: enter image description here

After This ,It's wokr for me!

Hope this is help you...

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Its fileprovider and not provider

android:authorities="${applicationId}.fileprovider"
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{applicationId} == com.companyName.application append ".provider"

which will be == com.example.test.provider

in xml authorities:com.example.test.provider

in activity Uri mPath = FileProvider.getUriForFile(this, "com.example.example.provider", imageFile);

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The problem here is, you use the class name .provider for authorities in manifest and use .fileprovider class name in java code.

 <provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths_app" />
</provider>






Couldn't find meta-data for provider with authority my.package.name.fileprovider

Just rename fileprovider to provider

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In My Case;

Manifest File:

<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>

Code:

import androidx.multidex.BuildConfig // NOT DO THIS!!!


val uri = FileProvider.getUriForFile(this,
BuildConfig.APPLICATION_ID+ ".provider", _tempFile)

Exception:

java.lang.IllegalArgumentException: Couldn't find meta-data for provider with authority androidx.multidex.provider

Do not use androidx.multidex.BuildConfig, Because this values are not the values of our application:

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//


package androidx.multidex;


public final class BuildConfig {
public static final boolean DEBUG = false;
public static final String APPLICATION_ID = "androidx.multidex";
public static final String BUILD_TYPE = "release";
public static final String FLAVOR = "";
public static final int VERSION_CODE = -1;
public static final String VERSION_NAME = "";


public BuildConfig() {
}
}
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First you use

File(getExternalFilesDir(null),context?.getString(R.string.app_name));

instead of

Environment.getExternalStorageDirectory(), context?.getString(R.string.app_name) // this is deprecated in API29

then use this

Uri contentUri = getUriForFile(getContext(), "com.mydomain.fileprovider", newFile);

For more help: File Provider Description

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If the build's suffix is different, it makes sense to make a change like this.

FileProvider.getUriForFile(mContext.get(), BuildConfig.APPLICATION_ID + ".fileprovider", file)
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You can replace your BuildConfig import class file name:

import androidx.multidex.BuildConfig;

with:

import com.yourAppName.BuildConfig;
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This is Because of this authority name difference

   <provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true"
>
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"
/>
</provider>


here Look
      

<pre>android:authorities="${applicationId}.provider" </pre>

Here the authority name is you packagename.provider (com.example.app.provider)

        val uri: Uri? = FileProvider.getUriForFile(
this.contexts,
BuildConfig.APPLICATION_ID + ".provider",
file
)

whenever we copy paste the code the authority may be change from one source to another. in stackoverflow some devs put in manifest ${applicationId}.provider" and in uri they put (.fileprovider) FileProvider.getUriForFile( this.contexts, BuildConfig.APPLICATION_ID + ".fileprovider", file ) this is the problem now authority is different that is showing in log

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FileProvider.getUriForFile(this, "{yourPAckageName}.fileprovider",
file);

to

FileProvider.getUriForFile(Objects.requireNonNull(getApplicationContext()),
BuildConfig.APPLICATION_ID + ".provider", file);

I spent a day finding a solution. This part is very important. That saved my day.

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what solved my problem is :

replace your paths app file by this : take a look at files root, i determined the path with my app package name, change the pkg name to yours.

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="files_root"
path="Android/data/com.my.newproject4" />
<external-path
name="external_files"
path="." />
</paths>

and also in your provider use your package name instead of ${applicationId}

same as me here

<provider
android:name="androidx.core.content.FileProvider"
android:authorities="com.my.newproject4.provider"
android:exported="false"
android:grantUriPermissions="true">


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

this is what worked with me the only solution and way after long time of trying and searching just this was the problem

maybe it helps someone i hope for you a good luck


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