import android.annotation.SuppressLint;
import android.app.Dialog;
-import android.app.DialogFragment;
import android.content.Context;
import android.content.DialogInterface;
import android.net.Uri;
import android.os.Bundle;
+import android.support.annotation.NonNull;
// `android.support.v7.app.AlertDialog` uses more of the horizontal screen real estate versus `android.app.AlertDialog's` smaller width.
import android.support.v7.app.AlertDialog;
+// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
+import android.support.v7.app.AppCompatDialogFragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import java.util.Locale;
-public class DownloadFile extends DialogFragment {
+public class DownloadFile extends AppCompatDialogFragment {
private String downloadUrl;
private String downloadFileName;
// The public interface is used to send information back to the parent activity.
public interface DownloadFileListener {
- void onDownloadFile(DialogFragment dialogFragment, String downloadUrl);
+ void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl);
}
// `downloadFileListener` is used in `onAttach()` and `onCreateDialog()`.
// `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
@SuppressLint("InflateParams")
@Override
+ @NonNull
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Get the activity's layout inflater.
LayoutInflater layoutInflater = getActivity().getLayoutInflater();