Search code examples
androidandroid-fileprovider

capturing photo android exception when using string from resources folder

i am following this tutorial https://developer.android.com/training/camera/photobasics in order to capture an image

i added the following file to xml folder

<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="my_images"
    path="Android/data/mypackage/files/Pictures" />

The capturing of the image using the above file works perfectly as expected but if i used @string resource as as shown below

<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path name="my_images"
    path="@string/mypath" />


<string name="mypath">Android/data/mypackage/files/Pictures</string>

i am getting the following exception 

Failed to find configured root that contains /storage/emulated/0/Android/data/mypackage/files/Pictures/IMG_20181018_134824_5769070663217749604.jpg

it workes perfectly if i don't use @string resource ,i need to use with string resources since i want to have different string when building app with gradle using build types

EDIT file provider in manifest file 

 <provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="${applicationId}.provider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@string/mypath">
        </meta-data>
    </provider>
Solution

  • i need to use with string resources

    You cannot use string resources in arbitrary locations, such as in FileProvider metadata.

    i want to have different string when building app with gradle using build types

    Then have different xml resources per build type, with different FileProvider metadata. IOW, replace the entire file, not a string within the file.