Java tutorial
/* This file is part of Subsonic. Subsonic 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 3 of the License, or (at your option) any later version. Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>. Copyright 2014 (C) Scott Jackson */ package github.daneren2005.dsub.activity; import android.app.Activity; import android.support.v7.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.support.v4.widget.DrawerLayout; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.Spinner; import java.util.ArrayList; import java.util.List; import github.daneren2005.dsub.R; import github.daneren2005.dsub.domain.Genre; import github.daneren2005.dsub.service.MusicService; import github.daneren2005.dsub.service.MusicServiceFactory; import github.daneren2005.dsub.service.OfflineException; import github.daneren2005.dsub.service.ServerTooOldException; import github.daneren2005.dsub.util.Constants; import github.daneren2005.dsub.util.LoadingTask; import github.daneren2005.dsub.util.Util; public class EditPlayActionActivity extends SubsonicActivity { private CheckBox shuffleCheckbox; private CheckBox startYearCheckbox; private EditText startYearBox; private CheckBox endYearCheckbox; private EditText endYearBox; private Button genreButton; private Spinner offlineSpinner; private String doNothing; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setTitle(R.string.tasker_start_playing_title); setContentView(R.layout.edit_play_action); final Activity context = this; doNothing = context.getResources().getString(R.string.tasker_edit_do_nothing); shuffleCheckbox = (CheckBox) findViewById(R.id.edit_shuffle_checkbox); shuffleCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton view, boolean isChecked) { startYearCheckbox.setEnabled(isChecked); endYearCheckbox.setEnabled(isChecked); genreButton.setEnabled(isChecked); } }); startYearCheckbox = (CheckBox) findViewById(R.id.edit_start_year_checkbox); startYearBox = (EditText) findViewById(R.id.edit_start_year); // Disable/enable number box if checked startYearCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton view, boolean isChecked) { startYearBox.setEnabled(isChecked); } }); endYearCheckbox = (CheckBox) findViewById(R.id.edit_end_year_checkbox); endYearBox = (EditText) findViewById(R.id.edit_end_year); endYearCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton view, boolean isChecked) { endYearBox.setEnabled(isChecked); } }); genreButton = (Button) findViewById(R.id.edit_genre_spinner); genreButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { new LoadingTask<List<Genre>>(context, true) { @Override protected List<Genre> doInBackground() throws Throwable { MusicService musicService = MusicServiceFactory.getMusicService(context); return musicService.getGenres(false, context, this); } @Override protected void done(final List<Genre> genres) { List<String> names = new ArrayList<String>(); String blank = context.getResources().getString(R.string.select_genre_blank); names.add(doNothing); names.add(blank); for (Genre genre : genres) { names.add(genre.getName()); } final List<String> finalNames = names; AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setTitle(R.string.shuffle_pick_genre).setItems( names.toArray(new CharSequence[names.size()]), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { if (which == 1) { genreButton.setText(""); } else { genreButton.setText(finalNames.get(which)); } } }); AlertDialog dialog = builder.create(); dialog.show(); } @Override protected void error(Throwable error) { String msg; if (error instanceof OfflineException || error instanceof ServerTooOldException) { msg = getErrorMessage(error); } else { msg = context.getResources().getString(R.string.playlist_error) + " " + getErrorMessage(error); } Util.toast(context, msg, false); } }.execute(); } }); genreButton.setText(doNothing); offlineSpinner = (Spinner) findViewById(R.id.edit_offline_spinner); ArrayAdapter<CharSequence> offlineAdapter = ArrayAdapter.createFromResource(this, R.array.editServerOptions, android.R.layout.simple_spinner_item); offlineAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); offlineSpinner.setAdapter(offlineAdapter); // Setup default for everything Bundle extras = getIntent().getBundleExtra(Constants.TASKER_EXTRA_BUNDLE); if (extras != null) { if (extras.getBoolean(Constants.INTENT_EXTRA_NAME_SHUFFLE)) { shuffleCheckbox.setChecked(true); } String startYear = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_START_YEAR, null); if (startYear != null) { startYearCheckbox.setEnabled(true); startYearBox.setText(startYear); } String endYear = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_END_YEAR, null); if (endYear != null) { endYearCheckbox.setEnabled(true); endYearBox.setText(endYear); } String genre = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_GENRE, doNothing); if (genre != null) { genreButton.setText(genre); } int offline = extras.getInt(Constants.PREFERENCES_KEY_OFFLINE, 0); if (offline != 0) { offlineSpinner.setSelection(offline); } } drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater menuInflater = getMenuInflater(); menuInflater.inflate(R.menu.tasker_configuration, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { cancel(); return true; } else if (item.getItemId() == R.id.menu_accept) { accept(); return true; } else if (item.getItemId() == R.id.menu_cancel) { cancel(); return true; } return false; } private void accept() { Intent intent = new Intent(); String blurb = getResources().getString(shuffleCheckbox.isChecked() ? R.string.tasker_start_playing_shuffled : R.string.tasker_start_playing); intent.putExtra("com.twofortyfouram.locale.intent.extra.BLURB", blurb); // Get settings user specified Bundle data = new Bundle(); boolean shuffle = shuffleCheckbox.isChecked(); data.putBoolean(Constants.INTENT_EXTRA_NAME_SHUFFLE, shuffle); if (shuffle) { if (startYearCheckbox.isChecked()) { data.putString(Constants.PREFERENCES_KEY_SHUFFLE_START_YEAR, startYearBox.getText().toString()); } if (endYearCheckbox.isChecked()) { data.putString(Constants.PREFERENCES_KEY_SHUFFLE_END_YEAR, endYearBox.getText().toString()); } String genre = genreButton.getText().toString(); if (!genre.equals(doNothing)) { data.putString(Constants.PREFERENCES_KEY_SHUFFLE_GENRE, genre); } } int offline = offlineSpinner.getSelectedItemPosition(); if (offline != 0) { data.putInt(Constants.PREFERENCES_KEY_OFFLINE, offline); } intent.putExtra(Constants.TASKER_EXTRA_BUNDLE, data); setResult(Activity.RESULT_OK, intent); finish(); } private void cancel() { setResult(Activity.RESULT_CANCELED); finish(); } }