How to fix: E/AndroidRuntime: FATAL EXCEPTION: main Process: com.android.youtubedownloader, PID: 929-CodePudding

Please I need assistance. I was creating a youtube downloader app, after launch on my device, It displayed application error. I traces the error message from logcat.

2021-12-14 05:21:17.718 9291-9291/com.android.youtubedownloader E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.android.youtubedownloader, PID: 9291
java.lang.ClassCastException: android.hardware.display.DisplayManager cannot be cast to android.app.DownloadManager
    at com.android.youtubedownloader.MainActivity$1.onUrisAvailable(MainActivity.java:46)
    at at.huber.youtubeExtractor.YouTubeUriExtractor.onExtractionComplete(YouTubeUriExtractor.java:15)
    at at.huber.youtubeExtractor.YouTubeExtractor.onPostExecute(YouTubeExtractor.java:146)
    at at.huber.youtubeExtractor.YouTubeExtractor.onPostExecute(YouTubeExtractor.java:38)
    at android.os.AsyncTask.finish(AsyncTask.java:660)
    at android.os.AsyncTask.-wrap1(AsyncTask.java)
    at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:677)
    at android.os.Handler.dispatchMessage(Handler.java:110)
    at android.os.Looper.loop(Looper.java:203)
    at android.app.ActivityThread.main(ActivityThread.java:6275)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)

CodePudding user response：

This is due to you're trying to cast DisplayManager object to DownloadManager which is not possible to solve this you need to do like following.

Java

DownloadManager downloadManager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);

Kotlin

val downloadManager = getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager