com.sdrtouch.tools.DialogManager.java Source code

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Here is the source code for com.sdrtouch.tools.DialogManager.java

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/*
 * rtl_tcp_andro is a library that uses libusb and librtlsdr to
 * turn your Realtek RTL2832 based DVB dongle into a SDR receiver.
 * It independently implements the rtl-tcp API protocol for native Android usage.
 * Copyright (C) 2016 by Martin Marinov <martintzvetomirov@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.sdrtouch.tools;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import marto.rtl_tcp_andro.R;

/**
 * Creates various dialogs
 * 
 * @author martinmarinov
 *
 */
public class DialogManager extends DialogFragment {

    /** List of possible dialogs to create */
    public enum dialogs {
        DIAG_ABOUT, DIAG_LICENSE
    }

    public static DialogFragment invokeDialog(final dialogs id, final String... args) {
        final Bundle b = new Bundle();

        b.putInt("elements", args.length);
        for (int i = 0; i < args.length; i++)
            b.putString("e" + i, args[i]);

        b.putInt("id", id.ordinal());

        final DialogManager dmg = new DialogManager();
        dmg.setArguments(b);

        return dmg;
    }

    @Override
    @NonNull
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final Bundle b = getArguments();
        final dialogs id = dialogs.values()[b.getInt("id")];

        Dialog dialog = createDialog(id);

        if (dialog != null)
            return dialog;
        else
            return new AlertDialog.Builder(getActivity()).setTitle(R.string.error)
                    .setPositiveButton(R.string.btn_ok, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog1, int which) {
                            dialog1.dismiss();
                        }
                    }).setMessage(R.string.notsupported).create();
    }

    private Dialog createDialog(final dialogs id) {
        switch (id) {
        case DIAG_ABOUT:
            final AlertDialog addd = new AlertDialog.Builder(getActivity()).setTitle(R.string.help)
                    .setPositiveButton(R.string.btn_ok, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                        }
                    }).setMessage(Html.fromHtml(getString(R.string.help_info))).create();
            try {
                addd.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface paramDialogInterface) {
                        try {
                            final TextView tv = (TextView) addd.getWindow().findViewById(android.R.id.message);
                            if (tv != null)
                                tv.setMovementMethod(LinkMovementMethod.getInstance());

                        } catch (Exception ignored) {
                        }
                    }
                });
            } catch (Exception ignored) {
            }

            return addd;
        case DIAG_LICENSE:
            return new AlertDialog.Builder(getActivity()).setTitle("License")
                    .setPositiveButton(R.string.btn_ok, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                        }
                    }).setMessage(readWholeStream(R.raw.license)).create();
        }
        return null;
    }

    private String readWholeStream(final int resoureId) {

        final StringBuilder total = new StringBuilder();

        try {
            final InputStream in = getActivity().getResources().openRawResource(resoureId);
            final BufferedReader r = new BufferedReader(new InputStreamReader(in));

            String line;
            while ((line = r.readLine()) != null) {
                total.append(line);
                total.append("\n");
            }
            in.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return total.toString();
    }
}