TextDialogFragment.java

/*
 TextDialogFragment.java
 Copyright (c) 2016 NTT DOCOMO,INC.
 Released under the MIT license
 http://opensource.org/licenses/mit-license.php
 */
package org.deviceconnect.android.manager.setting;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import org.deviceconnect.android.manager.R;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * テキストを表示するためのダイアログ.
 *
 * @author NTT DOCOMO, INC.
 */
public class TextDialogFragment extends DialogFragment {

    /**
     * バッファサイズ.
     */
    private static final int BUFFER_SIZE = 1024;

    @Override
    public Dialog onCreateDialog(final Bundle savedInstanceState) {
        View view = View.inflate(getActivity(), R.layout.fragment_privacypolicy, null);
        TextView text = (TextView) view.findViewById(android.R.id.text1);

        InputStream is = null;
        try {
            ByteArrayOutputStream os = new ByteArrayOutputStream();
            is = getActivity().getResources().openRawResource(getArguments().getInt(Intent.EXTRA_TEXT));
            byte[] buf = new byte[BUFFER_SIZE];
            while (true) {
                int len = is.read(buf);
                if (len < 0) {
                    break;
                }
                os.write(buf, 0, len);
            }
            text.setText(new String(os.toByteArray(), "UTF-8"));
        } catch (IOException e) {
            // do-thing
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                    // do-thing
                }
            }
        }

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setView(view);
        builder.setTitle(getArguments().getInt(Intent.EXTRA_TITLE));
        builder.setPositiveButton(R.string.activity_settings_close, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, final int which) {
                dialog.dismiss();
            }
        });
        return builder.create();
    }
}