Compose Preview crashes because of Parse init

[FlorinCusmereanu]

New Issue Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am not just asking a question.
• [x] I have searched through existing issues.
• [x] I can reproduce the issue with the latest version of Parse Server and the Parse Android SDK.

Issue Description

Cannot run Preview

Steps to reproduce

Create a Preview page

Actual Outcome

Error

Expected Outcome

Component rendered in preview pane

Environment

Android

Parse Android SDK

• SDK version: 4.2.1
• Operating system version: Sonoma 14.2

Server

• Parse Server version: FILL_THIS_OUT
• Operating system: FILL_THIS_OUT
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): FILL_THIS_OUT

Database

• System (MongoDB or Postgres): FILL_THIS_OUT
• Database version: FILL_THIS_OUT
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): FILL_THIS_OUT

Logs

java.lang.NullPointerException: Cannot invoke "java.io.File.getAbsolutePath()" because the return value of "com.parse.ParseCacheDirMigrationUtils.getOldParseDir(android.content.Context)" is null

I am trying with this code to preview my signup component I have tried initializing Parse in my preview, but it still doesn't work

@OptIn(ExperimentalMaterial3Api::class)
@Preview(showBackground = true)
@Composable
fun SignUpPagePreview() {

    val configuration = Parse.Configuration
        .Builder(LocalContext.current)
        .applicationId("****")
        .server("****")
        .build()
    Parse.initialize(configuration)
    Parse.enableLocalDatastore(LocalContext.current)

    CompositionLocalProvider(
        LocalUserState provides remember { UserStateViewModel() },
    ) {
        val navController = rememberNavController()
        SignUpPage(navController = navController)
    }

}

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• ❌ Please fill out all fields with a placeholder FILL_THIS_OUT, otherwise your issue will be closed. If a field does not apply to the issue, fill in n/a.

[mtrezza]

Not sure whether this is a bug or actually an incorrect setup of the preview context.

[FlorinCusmereanu]

hello @mtrezza and thanks for the reply. that context object is the only context reference I have in the Preview component. do you or anyone else know how to do it better? or know what is wrong? or what am I doing wrong, if any?

Now I have a new one with

@Preview(showBackground = true)
@Composable
fun PostViewPreview() {

    val configuration = Parse.Configuration
        .Builder(LocalContext.current)
        .applicationId("****")
        .server("****")
        .build()
    Parse.initialize(configuration)
    Parse.enableLocalDatastore(LocalContext.current)

    ParseObject.registerSubclass(User::class.java)
    ParseObject.registerSubclass(UserInspiration::class.java)
    val user = User()
    user.uniqueDisplayName = "John Doe"
    val userInspiration = UserInspiration()
    userInspiration.user = user
    userInspiration.title = "Something to test #test"
    PostView(userInspiration = userInspiration)
}

java.lang.NullPointerException: Cannot invoke "java.io.File.getAbsolutePath()" because the return value of "com.parse.ParseCacheDirMigrationUtils.getOldParseDir(android.content.Context)" is null   at com.parse.ParseCacheDirMigrationUtils.runSilentMigration(ParseCacheDirMigrationUtils.java:30)

thanks!