Java tutorial
/* * Copyright 2013 2016 Ricki Hirner (bitfire web engineering). * All rights reserved. This program and the accompanying materials * are made available under the terms of the GNU Public License v3.0 * which accompanies this distribution, and is available at * http://www.gnu.org/licenses/gpl.html */ package at.bitfire.davdroid.ui; import android.accounts.Account; import android.app.Dialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.DialogFragment; import android.support.v7.app.AlertDialog; import java.io.IOException; import at.bitfire.dav4android.exception.HttpException; import at.bitfire.davdroid.R; public class ExceptionInfoFragment extends DialogFragment { protected static final String ARG_ACCOUNT = "account", ARG_EXCEPTION = "exception"; public static ExceptionInfoFragment newInstance(@NonNull Exception exception, Account account) { ExceptionInfoFragment frag = new ExceptionInfoFragment(); Bundle args = new Bundle(1); args.putSerializable(ARG_EXCEPTION, exception); args.putParcelable(ARG_ACCOUNT, account); frag.setArguments(args); return frag; } @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Bundle args = getArguments(); final Exception exception = (Exception) args.getSerializable(ARG_EXCEPTION); final Account account = args.getParcelable(ARG_ACCOUNT); int title = R.string.exception; if (exception instanceof HttpException) title = R.string.exception_httpexception; else if (exception instanceof IOException) title = R.string.exception_ioexception; Dialog dialog = new AlertDialog.Builder(getContext()).setIcon(R.drawable.ic_error_dark).setTitle(title) .setMessage(exception.getClass().getCanonicalName() + "\n" + exception.getLocalizedMessage()) .setNegativeButton(R.string.exception_show_details, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Intent intent = new Intent(getContext(), DebugInfoActivity.class); intent.putExtra(DebugInfoActivity.KEY_THROWABLE, exception); if (account != null) intent.putExtra(DebugInfoActivity.KEY_ACCOUNT, account); startActivity(intent); } }).setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }).create(); setCancelable(false); return dialog; } }