How to fix the error while saving the image in gallery? - android-studio

Question

I was trying to save an image in a gallery via an app.
this is the error I got
java.lang.IllegalArgumentException: Couldn't find meta-data for a provider with authority com.example.android.fileprovider
I have a button which would capture an image from the camera by calling the below function.
**Code for saving the image **
val REQUEST_TAKE_PHOTO = 1
private fun dispatchTakePictureIntent() {
Intent(MediaStore.ACTION_IMAGE_CAPTURE).also { takePictureIntent ->
// Ensure that there's a camera activity to handle the intent
takePictureIntent.resolveActivity(packageManager)?.also {
// Create the File where the photo should go
val photoFile: File? = try {
createImageFile()
} catch (ex: IOException) {
// Error occurred while creating the File
Log.i("Exception","${ex.toString()}")
null
}
// Continue only if the File was successfully created
photoFile?.also {
val photoURI: Uri = FileProvider.getUriForFile(
this,
"com.example.android.fileprovider",
it
)
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI)
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO)
}
}
}
}
lateinit var currentPhotoPath: String
#Throws(IOException::class)
private fun createImageFile(): File {
// Create an image file name
val timeStamp: String = SimpleDateFormat("yyyyMMdd_HHmmss").format(Date())
val storageDir: File? = getExternalFilesDir(Environment.DIRECTORY_PICTURES)
return File.createTempFile(
"JPEG_${timeStamp}_", /* prefix */
".jpg", /* suffix */
storageDir /* directory */
).apply {
// Save a file: path for use with ACTION_VIEW intents
currentPhotoPath = absolutePath
}
}
Now I in google docs I found out that we need to add some more lines in Manifest.xml file, so I added them, but still, there is an error
<?XML version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.intentexperiment">
<uses-feature android:name="android.hardware.camera"
android:required="true" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<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=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.SET_ALARM" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.example.android.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>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-files-path
android:name="image" android:path="Android/data/com.example.package.name/files/Pictures" />
</paths>
I don't understand where the error is.
EDIT
I have moved the
<path>
...
</path>
in an XML file and accordingly changed the android: resource attribute
but the error now is
java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.example.intentexperiment-l0jZknwE-m3bgGza6RJAug==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.intentexperiment-l0jZknwE-m3bgGza6RJAug==/lib/arm64, /system/lib64]]
EDIT 2
after doing this
android:name="androidx.core.content.FileProvider"
still there is a error
java.lang.IllegalArgumentException: Failed to find configured root that contains /storage/emulated/0/Android/data/com.example.intentexperiment/files/Pictures/JPEG_20200425_194311_3114424866623330911.jpg
at androidx.core.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:744)
at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:418)
at com.example.intentexperiment.MainActivity.dispatchTakePictureIntent(MainActivity.kt:54)
at com.example.intentexperiment.MainActivity.access$dispatchTakePictureIntent(MainActivity.kt:22)
at com.example.intentexperiment.MainActivity$onCreate$1.onClick(MainActivity.kt:31)
at android.view.View.performClick(View.java:6600)
at android.view.View.performClickInternal(View.java:6577)
at android.view.View.access$3100(View.java:781)
at android.view.View$PerformClick.run(View.java:25912)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6923)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)