Android Open Source - AndroidWifiServer Server Activity

From Project

License

The source code is released under:
Apache License
If you think the Android project AndroidWifiServer listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package jp.maju.wifiserver.server;
//from   ww  w.  j  ava 2 s .  c om
import java.util.List;
import java.util.Map;
import java.util.Set;

import jp.maju.wifiserver.DBAdapter;
import jp.maju.wifiserver.R;
import jp.maju.wifiserver.util.CommonUtil;
import jp.maju.wifiserver.util.Logger;
import jp.maju.wifiserver.util.PreferenceUtil;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Color;
import android.graphics.Rect;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Pair;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnLongClickListener;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

/*
 * Copyright {2014} {Matsuda Jumpei}
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
public class ServerActivity extends ActionBarActivity implements
        OnCheckedChangeListener, OnLongClickListener {
    private static final String TAG = ServerActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_server);

        getHostTextView()
                .setText(CommonUtil.getCurrentWifiIP(getApplication()));

        String ssid = CommonUtil.getCurrentSSID(getApplicationContext());

        if (CommonUtil.isServiceRunning(this, ServerService.class)) {
            int port = PreferenceUtil.getServerPortOnServer(getApplication(),
                    ssid);
            generateQRCode(
                    ssid + ":" + CommonUtil.getCurrentWifiIP(getApplication())
                            + ":" + port, 200);
            getPortEditText().setText(String.valueOf(port));
        }

        getLaunchToggleButton().setChecked(
                CommonUtil.isServiceRunning(this, ServerService.class));
        getPortEditText().setEnabled(
                !CommonUtil.isServiceRunning(this, ServerService.class));

        getLaunchToggleButton().setOnCheckedChangeListener(this);
        getQRCodeImageView().setOnLongClickListener(this);
    }

    private ToggleButton getLaunchToggleButton() {
        return (ToggleButton) findViewById(R.id.server_toggle_launch);
    }

    private EditText getPortEditText() {
        return (EditText) findViewById(R.id.server_edit_port);
    }

    private TextView getHostTextView() {
        return (TextView) findViewById(R.id.server_text_host);
    }

    private ImageView getQRCodeImageView() {
        return (ImageView) findViewById(R.id.server_qr_image);
    }

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        getPortEditText().setEnabled(!isChecked);

        if (isChecked) {
            String ssid = CommonUtil.getCurrentSSID(getApplicationContext());
            int port = Integer.parseInt(getPortEditText().getText().toString());

            PreferenceUtil.setServerPortOnServer(getApplication(), ssid, port);

            generateQRCode(
                    ssid + ":" + CommonUtil.getCurrentWifiIP(getApplication())
                            + ":" + port + ":" + PreferenceUtil.getAnchor(getApplication()), 200);

            CommonUtil.startService(this, ServerService.class);
        } else {
            getQRCodeImageView().setImageBitmap(null);

            CommonUtil.stopService(this, ServerService.class);
        }
    }

    private void generateQRCode(String contents, int length) {
        try {
            BitMatrix bitMatrix = new QRCodeWriter().encode(contents,
                    BarcodeFormat.QR_CODE, length, length);
            Rect origin = new Rect(0, 0, bitMatrix.getWidth(),
                    bitMatrix.getHeight());
            Rect pointer = new Rect(0, 0, 0, 0);
            int[] pixels = new int[origin.width() * origin.height()];

            while (pointer.top < origin.bottom) {
                while (pointer.left < origin.right) {
                    pixels[origin.width() * pointer.top + pointer.left] = bitMatrix
                            .get(pointer.left, pointer.top) ? Color.BLACK
                            : Color.WHITE;
                    pointer.left++;
                }
                pointer.left = 0;
                pointer.top++;
            }

            Bitmap qrBitmap = Bitmap.createBitmap(pixels, 0, origin.width(),
                    origin.width(), origin.height(), Config.ARGB_8888);
            getQRCodeImageView().setImageBitmap(qrBitmap);
            getQRCodeImageView().setTag(contents);
        } catch (WriterException e) {
            Logger.e(TAG, e);
        }
    }

    @Override
    public boolean onLongClick(View view) {
        if (view == getQRCodeImageView()
                && getQRCodeImageView().getTag() != null) {
            Toast.makeText(getApplicationContext(),
                    (String) getQRCodeImageView().getTag(), Toast.LENGTH_SHORT)
                    .show();
        }
        return true;
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.server, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.menu_server_export) {
            DBAdapter dbAdapter = new DBAdapter(this).open();
            Map<String, List<Pair<Long, Long>>> dataMap = dbAdapter.getAllLoginList();
            dbAdapter.close();

            Set<String> keys = dataMap.keySet();

            StringBuilder sb = new StringBuilder();

            sb.append("[");

            for (String key : keys) {
                appendData(sb, PreferenceUtil.getUsername(getApplication(), key), dataMap.get(key));
                sb.append(",");
            }
            
            if (sb.lastIndexOf(",") == sb.length() - 1) {
                sb.deleteCharAt(sb.length() - 1);
            }

            sb.append("]");
            
            String jsonString = sb.toString();
            
            AlertDialog.Builder builder = new Builder(this);
            builder.setCancelable(false);
            EditText tv = new EditText(this);
            tv.setText(jsonString);
            builder.setView(tv);
            builder.setPositiveButton(android.R.string.ok, null);
            builder.create().show();
        }

        return true;
    }

    private void appendData(StringBuilder sb, String username,
            List<Pair<Long,Long>> timeList) {
        sb.append("{");
        sb.append("username:");
        sb.append(username);
        sb.append(",");
        sb.append("times:");
        sb.append("[");

        for (Pair<Long, Long> pair : timeList) {
            sb.append("{");
            sb.append("login:");
            sb.append(pair.first);
            sb.append(",");
            sb.append("logout:");
            if (pair.second != null) {
                sb.append(pair.second);
            } else {
                sb.append("-1");
            }
            sb.append("}");
            sb.append(",");
        }

        if (sb.lastIndexOf(",") == sb.length() - 1) {
            sb.deleteCharAt(sb.length() - 1);
        }

        sb.append("]");
        sb.append("}");
    }
}
Java Source Code List
