Try the following Rebuilding the project Cleaning the project Syncing with Gradle Files Closing the Project, closing AS and relaunching / reopening File > Invalidate Caches / Restart Double checking all support libraries are up to date in the SDK manager Exit Android Studio Back up your project Delete all the .iml files and the … Read more
Your DSLL class appears to have a DNode static inner class, and DNode is not Serializable.
Two ways to achieve it. 1) Need to start the dialer via code, without user interaction. You need Action_Dial, use below code it will open Dialer with number specified The ‘tel:’ prefix is required, otherwhise the following exception will be thrown: java.lang.IllegalStateException: Could not execute method of the activity. Action_Dial doesn’t require any permission. If you want … Read more
Use this to “put” the file… Then, to retrieve the value try something like:
You can let user choose it via Intent as so: Letting the default app handle the email: Explanation can be found here: https://stackoverflow.com/a/3312562/1894684
From official documentation : To enable Google to crawl your app content and allow users to enter your app from search results, you must add intent filters for the relevant activities in your app manifest. These intent filters allow deep linking to the content in any of your activities. For example, the user might click … Read more