Android Open Source - MapsMeasure Dialogs

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Thomas Hoffmann//from   www  .ja  v a2  s.  c  o m
 * 
 * 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.
 */

package de.j4velin.mapsmeasure;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.content.FileProvider;
import android.text.method.LinkMovementMethod;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.android.vending.billing.IInAppBillingService;
import com.google.android.gms.maps.model.LatLng;

import java.io.File;
import java.io.IOException;
import java.util.Stack;

import de.j4velin.mapsmeasure.wrapper.API8Wrapper;

class Dialogs {

    /**
     * @param c the Context
     * @return the about dialog
     */
    public static Dialog getAbout(final Context c) {
        AlertDialog.Builder builder = new AlertDialog.Builder(c);
        builder.setTitle(R.string.about);

        TextView tv = new TextView(c);
        int pad = (Util.dpToPx(c, 10));
        tv.setPadding(pad, pad, pad, pad);

        try {
            tv.setText(R.string.about_text);
            tv.append(c.getString(R.string.app_version,
                    c.getPackageManager().getPackageInfo(c.getPackageName(), 0).versionName));
            tv.setMovementMethod(LinkMovementMethod.getInstance());
        } catch (NameNotFoundException e1) {
            // should not happen as the app is definitely installed when
            // seeing the dialog
            e1.printStackTrace();
        }
        builder.setView(tv);
        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        return builder.create();
    }

    /**
     * @param c     the Context
     * @param trace the current trace of points
     * @return the "save & share" dialog
     */
    public static Dialog getSaveNShare(final Activity c, final Stack<LatLng> trace) {
        final Dialog d = new Dialog(c);
        d.requestWindowFeature(Window.FEATURE_NO_TITLE);
        d.setContentView(R.layout.dialog_save);
        d.findViewById(R.id.save).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(final View v) {
                final File destination;
                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.FROYO &&
                        Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
                    destination = API8Wrapper.getExternalFilesDir(c);
                } else {
                    destination = c.getDir("traces", Context.MODE_PRIVATE);
                }

                d.dismiss();
                AlertDialog.Builder b = new AlertDialog.Builder(c);
                b.setTitle(R.string.save);
                final View layout =
                        c.getLayoutInflater().inflate(R.layout.dialog_enter_filename, null);
                ((TextView) layout.findViewById(R.id.location)).setText(
                        c.getString(R.string.file_path, destination.getAbsolutePath() + "/"));
                b.setView(layout);
                b.setPositiveButton(R.string.save, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        try {
                            String fname = ((EditText) layout.findViewById(R.id.filename)).getText()
                                    .toString();
                            if (fname == null || fname.length() < 1) {
                                fname = "MapsMeasure_" + System.currentTimeMillis();
                            }
                            final File f = new File(destination, fname + ".csv");
                            Util.saveToFile(f, trace);
                            d.dismiss();
                            Toast.makeText(c, c.getString(R.string.file_saved, f.getAbsolutePath()),
                                    Toast.LENGTH_SHORT).show();
                        } catch (Exception e) {
                            Toast.makeText(c, c.getString(R.string.error,
                                            e.getClass().getSimpleName() + "\n" + e.getMessage()),
                                    Toast.LENGTH_LONG).show();
                        }
                    }
                });
                b.create().show();
            }
        });
        d.findViewById(R.id.load).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(final View v) {

                File[] files = c.getDir("traces", Context.MODE_PRIVATE).listFiles();

                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.FROYO &&
                        Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
                    File ext = API8Wrapper.getExternalFilesDir(c);
                    // even though we checked the external storage state, ext is still sometimes null, accoring to Play Store crash reports
                    if (ext != null) {
                        File[] filesExtern = ext.listFiles();
                        File[] allFiles = new File[files.length + filesExtern.length];
                        System.arraycopy(files, 0, allFiles, 0, files.length);
                        System.arraycopy(filesExtern, 0, allFiles, files.length,
                                filesExtern.length);
                        files = allFiles;
                    }
                }

                if (files.length == 0) {
                    Toast.makeText(c, c.getString(R.string.no_files_found,
                                    c.getDir("traces", Context.MODE_PRIVATE).getAbsolutePath()),
                            Toast.LENGTH_SHORT).show();
                } else if (files.length == 1) {
                    try {
                        Util.loadFromFile(Uri.fromFile(files[0]), (Map) c);
                        d.dismiss();
                    } catch (IOException e) {
                        e.printStackTrace();
                        Toast.makeText(c, c.getString(R.string.error,
                                        e.getClass().getSimpleName() + "\n" + e.getMessage()),
                                Toast.LENGTH_LONG).show();
                    }
                } else {
                    d.dismiss();
                    AlertDialog.Builder b = new AlertDialog.Builder(c);
                    b.setTitle(R.string.select_file);
                    final DeleteAdapter da = new DeleteAdapter(files, (Map) c);
                    b.setAdapter(da, new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            try {
                                Util.loadFromFile(Uri.fromFile(da.getFile(which)), (Map) c);
                                dialog.dismiss();
                            } catch (IOException e) {
                                e.printStackTrace();
                                Toast.makeText(c, c.getString(R.string.error,
                                        e.getClass().getSimpleName() + "\n" +
                                                e.getMessage()), Toast.LENGTH_LONG).show();
                            }
                        }
                    });
                    b.create().show();
                }
            }
        });
        d.findViewById(R.id.share).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(final View v) {
                try {
                    final File f = new File(c.getCacheDir(), "MapsMeasure.csv");
                    Util.saveToFile(f, trace);
                    Intent shareIntent = new Intent();
                    shareIntent.setAction(Intent.ACTION_SEND);
                    shareIntent.putExtra(Intent.EXTRA_STREAM, FileProvider
                            .getUriForFile(c, "de.j4velin.mapsmeasure.fileprovider", f));
                    shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                    shareIntent.setType("text/comma-separated-values");
                    d.dismiss();
                    c.startActivity(Intent.createChooser(shareIntent, null));
                } catch (IOException e) {
                    e.printStackTrace();
                    Toast.makeText(c, c.getString(R.string.error,
                                    e.getClass().getSimpleName() + "\n" + e.getMessage()),
                            Toast.LENGTH_LONG).show();
                }
            }
        });
        return d;
    }

    /**
     * @param m        the Map
     * @param distance the current distance
     * @param area     the current area
     * @return the units dialog
     */
    public static Dialog getUnits(final Map m, float distance, double area) {
        final Dialog d = new Dialog(m);
        d.requestWindowFeature(Window.FEATURE_NO_TITLE);
        d.setContentView(R.layout.dialog_unit);
        CheckBox metricCb = (CheckBox) d.findViewById(R.id.metric);
        metricCb.setChecked(m.metric);
        metricCb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                m.metric = !m.metric;
                m.getSharedPreferences("settings", Context.MODE_PRIVATE).edit()
                        .putBoolean("metric", isChecked).commit();
                m.updateValueText();
            }
        });
        ((TextView) d.findViewById(R.id.distance))
                .setText(Map.formatter_two_dec.format(Math.max(0, distance)) + " m\n" +
                        Map.formatter_two_dec.format(distance / 1000) + " km\n\n" +
                        Map.formatter_two_dec.format(Math.max(0, distance / 0.3048f)) +
                        " ft\n" +
                        Map.formatter_two_dec.format(Math.max(0, distance / 0.9144)) +
                        " yd\n" +
                        Map.formatter_two_dec.format(distance / 1609.344f) + " mi\n" +
                        Map.formatter_two_dec.format(distance / 1852f) + " nautical miles");

        ((TextView) d.findViewById(R.id.area))
                .setText(Map.formatter_two_dec.format(Math.max(0, area)) + " m\n" +
                        Map.formatter_two_dec.format(area / 10000) + " ha\n" +
                        Map.formatter_two_dec.format(area / 1000000) + " km\n\n" +
                        Map.formatter_two_dec.format(Math.max(0, area / 0.09290304d)) +
                        " ft\n" +
                        Map.formatter_two_dec.format(area / 4046.8726099d) +
                        " ac (U.S. Survey)\n" +
                        Map.formatter_two_dec.format(area / 2589988.110336d) + " mi");
        d.findViewById(R.id.close).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(final View v) {
                d.dismiss();
            }
        });
        return d;
    }

    /**
     * @param c the Context
     * @return a dialog informing the user about an issue with getting altitude
     * data from the Google API
     */
    public static Dialog getElevationErrorDialog(final Context c) {
        AlertDialog.Builder builder = new AlertDialog.Builder(c);
        builder.setMessage(Util.checkInternetConnection(c) ? R.string.elevation_error :
                R.string.elevation_error_no_connection);
        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        return builder.create();
    }

    /**
     * @param c the Context
     * @return a dialog allowing the user to gain access to the evelation
     * feature
     */
    public static Dialog getElevationAccessDialog(final Map c, final IInAppBillingService service) {
        AlertDialog.Builder builder = new AlertDialog.Builder(c);
        builder.setMessage(R.string.buy_pro);
        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, int which) {
                try {
                    Bundle buyIntentBundle = service.getBuyIntent(3, c.getPackageName(),
                            "de.j4velin.mapsmeasure.billing.pro", "inapp", c.getPackageName());
                    if (buyIntentBundle.getInt("RESPONSE_CODE") == 0) {
                        PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT");
                        c.startIntentSenderForResult(pendingIntent.getIntentSender(), 42, null, 0,
                                0, 0);
                    }
                } catch (Exception e) {
                    Toast.makeText(c, e.getClass().getName() + ": " + e.getMessage(),
                            Toast.LENGTH_LONG).show();
                    e.printStackTrace();
                }
                dialog.dismiss();
            }
        });
        builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        return builder.create();
    }

    public static Dialog getSearchDialog(final Map map) {
        AlertDialog.Builder builder = new AlertDialog.Builder(map);
        final EditText search = new EditText(map);
        search.setHint(android.R.string.search_go);
        builder.setView(search);
        builder.setPositiveButton(android.R.string.search_go,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(final DialogInterface dialog, int which) {
                        new GeocoderTask(map).execute(search.getText().toString());
                        // hide softinput keyboard
                        InputMethodManager inputManager = (InputMethodManager) map
                                .getSystemService(Context.INPUT_METHOD_SERVICE);
                        inputManager.hideSoftInputFromWindow(search.getWindowToken(),
                                InputMethodManager.HIDE_NOT_ALWAYS);
                        dialog.dismiss();
                    }
                });
        builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, int which) {
                // hide softinput keyboard
                InputMethodManager inputManager =
                        (InputMethodManager) map.getSystemService(Context.INPUT_METHOD_SERVICE);
                inputManager.hideSoftInputFromWindow(search.getWindowToken(),
                        InputMethodManager.HIDE_NOT_ALWAYS);
                dialog.dismiss();
            }
        });
        return builder.create();
    }

}

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