TabWidgetActivity.java - csdroid - Clear Sky Droid, Clear Sky Charts for Android

Source path: svn/ trunk/ src/ org/ jtb/ csdroid/ TabWidgetActivity.java

‹r36

r37

package org.jtb.csdroid;

import java.io.IOException;
import java.util.List;

import org.jtb.csc.CSCLocation;
import org.jtb.csc.CSCManager;
import org.jtb.csdroid.donate.R;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.app.TabActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TabHost;

public class TabWidgetActivity extends TabActivity {
	// static final int SERVICE_START_DIALOG_SHOW_WHAT = 0;
	private final int SERVICE_START_DIALOG_DISMISS_WHAT = 1;
	public static final int REFRESH_ERROR_SHOW_WHAT = 2;
	static final int REFRESH_ERROR_HIDE_WHAT = 3;
	static final int FAVE_SHORTCUT_SHOW_WHAT = 4;

	private static final int INFO_DIALOG = 0;
	private static final int REFRESH_DIALOG = 1;
	private static final int SERVICE_START_DIALOG = 2;
	private static final int ADDRESS_DIALOG = 3;
	private static final int LOCATION_ERROR_DIALOG = 4;
	private static final int GEOCODE_ERROR_DIALOG = 5;
	private static final int REFRESH_ERROR_DIALOG = 6;

	private static final int INFO_MENU = 0;
	private static final int ADDRESS_MENU = 1;
	private static final int REFRESH_MENU = 2;
	private static final int PREFS_MENU = 3;
	private static final int MY_LOCATION_MENU = 4;

	private static final int PREFS_REQUEST = 0;

	static CSCLocation mLocation = new CSCLocation();

	private TabHost mTabHost;
	private TabWidgetActivity mThis;

	private Dialog mInfoDialog = null;
	private AlertDialog mRefreshDialog = null;
	private ProgressDialog mServiceStartDialog;
	private AlertDialog mAddressDialog;
	private AlertDialog mGeocodeErrorDialog;
	private AlertDialog mLocationErrorDialog;
	private AlertDialog mRefreshErrorDialog;

	private Prefs mPrefs;
	private String mRefreshError = null;

	private Handler mHandler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
			switch (msg.what) {
			case SERVICE_START_DIALOG_DISMISS_WHAT:
				if (mServiceStartDialog.isShowing()) {
					mServiceStartDialog.hide();
				}
				break;
			case REFRESH_ERROR_SHOW_WHAT:
				mRefreshError = (String) msg.obj;
				showDialog(REFRESH_ERROR_DIALOG);
				break;
			case REFRESH_ERROR_HIDE_WHAT:
				if (mRefreshErrorDialog.isShowing()) {
					dismissDialog(REFRESH_ERROR_DIALOG);
				}
				break;
			case FAVE_SHORTCUT_SHOW_WHAT:
				Intent i = new Intent(TabWidgetActivity.this,
						FavesShortcutActivity.class);
				startActivity(i);
				break;
			}
		}
	};
	public static Handler mStaticHandler = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.tabs);

		mThis = this;
		mStaticHandler = mHandler;
		mPrefs = new Prefs(this);

		mTabHost = getTabHost();

		TabHost.TabSpec closestTab = mTabHost.newTabSpec("closest")
				.setIndicator(
						"Closest",
						getResources().getDrawable(
								android.R.drawable.ic_menu_compass));
		TabHost.TabSpec searchTab = mTabHost.newTabSpec("search").setIndicator(
				"Search",
				getResources().getDrawable(android.R.drawable.ic_menu_search));
		TabHost.TabSpec favesTab = mTabHost.newTabSpec("faves").setIndicator(
				"Favorites",
				getResources().getDrawable(android.R.drawable.ic_menu_edit));

		closestTab.setContent(new Intent(this, ClosestActivity.class));
		searchTab.setContent(new Intent(this, SearchActivity.class));
		favesTab.setContent(new Intent(this, FavesActivity.class));

		mTabHost.addTab(closestTab);
		mTabHost.addTab(searchTab);
		mTabHost.addTab(favesTab);

		String currentTab = mPrefs.getCurrentTab();
		mTabHost.setCurrentTabByTag(currentTab);

		mTabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
			public void onTabChanged(String tabId) {
				mPrefs.setCurrentTab(mTabHost);
				initActivity();
			}
		});

	}

	@Override
	public void onResume() {
		super.onResume();
		startService();
	}

	private boolean setLocationByAddress(String addr) {
		Geocoder gc = new Geocoder(this);
		List<Address> addrs;
		try {
			addrs = gc.getFromLocationName(addr, 1);
			if (addrs.size() == 0) {
				Log.w(getClass().getSimpleName(), "could not geocode address: "
						+ addr);
				return false;
			}
			Address a = addrs.get(0);

			TabWidgetActivity.mLocation.setLatitude(a.getLatitude());
			TabWidgetActivity.mLocation.setLongitude(a.getLongitude());
			return true;
		} catch (IOException e) {
			Log.w(getClass().getSimpleName(), "could not geocode address: "
					+ addr, e);
			return false;
		}
	}

	private boolean setLocation() {
		String address = mPrefs.getAddress();
		if (address != null && address.length() > 0) {
			if (setLocationByAddress(address)) {
				return true;
			}
		}
		if (!setLocationByProvider()) {
			showDialog(LOCATION_ERROR_DIALOG);
			return false;
		}
		return true;
	}

	private boolean setLocationByProvider() {
		LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
		Location l = null;

		for (String providerName : lm.getProviders(true)) {
			l = lm.getLastKnownLocation(providerName);
			if (l != null) {
				TabWidgetActivity.mLocation.setLatitude(l.getLatitude());
				TabWidgetActivity.mLocation.setLongitude(l.getLongitude());
				return true;
			}
		}

		Log.w(getClass().getSimpleName(), "no last location");
		return false;
	}

	private void initActivity() {
		String tabId = mPrefs.getCurrentTab();
		setLocation();

		if (tabId.equals("closest")) {
			Handler h = ClosestActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(ClosestActivity.mStaticHandler
						.obtainMessage(ClosestActivity.INIT_WHAT));
			}
		} else if (tabId.equals("search")) {
			Handler h = SearchActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(SearchActivity.mStaticHandler
						.obtainMessage(SearchActivity.INIT_WHAT));
			}
		} else if (tabId.equals("faves")) {
			Handler h = FavesActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(FavesActivity.mStaticHandler
						.obtainMessage(FavesActivity.INIT_WHAT));
			}
		}
	}

	private void updateActivity() {
		String tabId = mPrefs.getCurrentTab();
		setLocation();

		if (tabId.equals("closest")) {
			Handler h = ClosestActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(ClosestActivity.mStaticHandler
						.obtainMessage(ClosestActivity.UPDATE_WHAT));
			}
		} else if (tabId.equals("search")) {
			Handler h = SearchActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(SearchActivity.mStaticHandler
						.obtainMessage(SearchActivity.UPDATE_WHAT));
			}
		} else if (tabId.equals("faves")) {
			Handler h = FavesActivity.mStaticHandler;
			if (h != null) {
				h.sendMessage(FavesActivity.mStaticHandler
						.obtainMessage(FavesActivity.UPDATE_WHAT));
			}
		}
	}

	private void resetActivities() {
		Handler h = ClosestActivity.mStaticHandler;
		if (h != null) {
			h.sendMessage(ClosestActivity.mStaticHandler
					.obtainMessage(ClosestActivity.RESET_WHAT));
		}
		h = SearchActivity.mStaticHandler;
		if (h != null) {
			h.sendMessage(SearchActivity.mStaticHandler
					.obtainMessage(SearchActivity.RESET_WHAT));
		}
		h = FavesActivity.mStaticHandler;
		if (h != null) {
			h.sendMessage(FavesActivity.mStaticHandler
					.obtainMessage(FavesActivity.RESET_WHAT));
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		boolean result = super.onCreateOptionsMenu(menu);
		menu.add(0, INFO_MENU, 0, R.string.info_menu).setIcon(
				android.R.drawable.ic_menu_info_details);
		menu.add(0, MY_LOCATION_MENU, 1, R.string.my_location_menu).setIcon(
				android.R.drawable.ic_menu_compass);
		menu.add(0, ADDRESS_MENU, 2, R.string.address_menu).setIcon(
				android.R.drawable.ic_menu_send);
		menu.add(0, REFRESH_MENU, 3, R.string.refresh_menu).setIcon(
				android.R.drawable.ic_menu_rotate);
		menu.add(0, PREFS_MENU, 4, R.string.prefs_menu).setIcon(
				android.R.drawable.ic_menu_preferences);
		return result;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case INFO_MENU:
			showDialog(INFO_DIALOG);
			return true;
		case REFRESH_MENU:
			showDialog(REFRESH_DIALOG);
			return true;
		case ADDRESS_MENU:
			showDialog(ADDRESS_DIALOG);
			return true;
		case MY_LOCATION_MENU:
			if (setLocationByProvider()) {
				mPrefs.setAddress("");
				resetActivities();
				updateActivity();
				mTabHost.setCurrentTabByTag("closest");
			} else {
				showDialog(LOCATION_ERROR_DIALOG);
			}
			return true;
		case PREFS_MENU:
			Intent prefsActivity = new Intent(getBaseContext(),
					PrefsActivity.class);
			startActivityForResult(prefsActivity, PREFS_REQUEST);
			return true;
		}

		return super.onOptionsItemSelected(item);
	}

	@Override
	public void onActivityResult(int requestCode, int resultCode, Intent data) {
		switch (requestCode) {
		case PREFS_REQUEST:
			/*
			 * if (resultCode == PrefsActivity.CHANGED_RESULT) {
			 * resetActivities(); updateActivity(); }
			 */
			resetActivities();
			updateActivity();

			break;
		}
	}

	public void startService() {
		showDialog(SERVICE_START_DIALOG);
		new Thread(new Runnable() {
			public void run() {
				Looper.prepare();
				try {
					CSCManager.getInstance(mThis);
				} finally {
					mHandler.sendMessage(Message.obtain(mHandler,
							SERVICE_START_DIALOG_DISMISS_WHAT));
				}

				String action = getIntent().getAction();
				String id = null;
				Bundle extras = getIntent().getExtras();
				if (extras != null) {
					id = extras.getString("org.jtb.csdroid.site.id");
				}

				// request to create shortcut?
				if (action != null
						&& action
								.equals("android.intent.action.CREATE_SHORTCUT")) {
					mHandler.sendEmptyMessage(FAVE_SHORTCUT_SHOW_WHAT);
					// request to open details?
				} else if (id != null) {
					Intent i = new Intent(TabWidgetActivity.this,
							DetailActivity.class);
					i.putExtra("org.jtb.csdroid.site.id", id);
					startActivity(i);
					finish();
					// request to open application
				} else {
					resetActivities();
					initActivity();
				}
			}
		}).start();
	}

	protected Dialog onCreateDialog(int id) {
		switch (id) {
		case REFRESH_DIALOG: {
			if (mRefreshDialog == null) {
				AlertDialog.Builder builder = new AlertDialog.Builder(this);
				builder.setMessage("Charts update automatically. Manual updates can add extra load to servers.\n\nAre you sure?");
				builder.setPositiveButton(R.string.yes,
						new DialogInterface.OnClickListener() {
							public void onClick(DialogInterface dialog,
									int which) {
								dismissDialog(REFRESH_DIALOG);
								CSCManager.getInstance(mThis).clearCache();
								startService();
							}
						});
				builder.setNegativeButton(R.string.no,
						new DialogInterface.OnClickListener() {
							public void onClick(DialogInterface dialog,
									int which) {
								dismissDialog(REFRESH_DIALOG);
							}
						});
				mRefreshDialog = builder.create();
			}
			return mRefreshDialog;
		}
		case INFO_DIALOG: {
			AlertDialog.Builder builder = new InfoDialog.Builder(this);
			mInfoDialog = builder.create();
			return mInfoDialog;
		}
		case SERVICE_START_DIALOG: {
			if (mServiceStartDialog == null) {
				mServiceStartDialog = new ProgressDialog(this);
				mServiceStartDialog
						.setMessage("Preparing charts, please wait.");
				mServiceStartDialog.setIndeterminate(true);
				mServiceStartDialog.setCancelable(false);
			}
			return mServiceStartDialog;
		}
		case ADDRESS_DIALOG: {
			LayoutInflater factory = LayoutInflater.from(this);
			final View zipView = factory.inflate(R.layout.address_dialog, null);
			final EditText zipEdit = (EditText) zipView
					.findViewById(R.id.address);
			mAddressDialog = new AlertDialog.Builder(this)
					.setTitle("Enter Address / Zip Code")
					.setView(zipView)
					.setPositiveButton(R.string.ok,
							new DialogInterface.OnClickListener() {
								public void onClick(DialogInterface dialog,
										int whichButton) {
									String address = zipEdit.getText()
											.toString();
									dismissDialog(ADDRESS_DIALOG);
									if (setLocationByAddress(address)) {
										mPrefs.setAddress(address);
										resetActivities();
										updateActivity();
										mTabHost.setCurrentTabByTag("closest");
									} else {
										showDialog(GEOCODE_ERROR_DIALOG);
									}
								}
							})
					.setNegativeButton(R.string.cancel,
							new DialogInterface.OnClickListener() {
								public void onClick(DialogInterface dialog,
										int whichButton) {
									dismissDialog(ADDRESS_DIALOG);
								}
							}).create();
			return mAddressDialog;
		}
		case LOCATION_ERROR_DIALOG: {
			AlertDialog.Builder builder = new AlertDialog.Builder(this);
			builder.setTitle("Warning");
			builder.setMessage("Could not determine your location. Enable network or GPS location services, or use Menu>Go to Address.");
			builder.setNeutralButton(R.string.ok,
					new DialogInterface.OnClickListener() {
						public void onClick(DialogInterface dialog, int which) {
							dismissDialog(LOCATION_ERROR_DIALOG);
						}
					});
			mLocationErrorDialog = builder.create();
			return mLocationErrorDialog;
		}
		case GEOCODE_ERROR_DIALOG: {
			AlertDialog.Builder builder = new AlertDialog.Builder(this);
			builder.setMessage("Could not find location for that address / zip.");
			builder.setNeutralButton(R.string.ok,
					new DialogInterface.OnClickListener() {
						public void onClick(DialogInterface dialog, int which) {
							dismissDialog(GEOCODE_ERROR_DIALOG);
						}
					});
			mGeocodeErrorDialog = builder.create();
			return mGeocodeErrorDialog;
		}
		case REFRESH_ERROR_DIALOG: {
			AlertDialog.Builder builder = new AlertDialog.Builder(this);
			builder.setTitle("Error preparing charts");
			builder.setMessage(mRefreshError);
			builder.setNeutralButton(R.string.ok,
					new DialogInterface.OnClickListener() {
						public void onClick(DialogInterface dialog, int which) {
							dismissDialog(REFRESH_ERROR_DIALOG);
						}
					});
			builder.setIcon(android.R.drawable.ic_dialog_alert);
			mRefreshErrorDialog = builder.create();
			return mRefreshErrorDialog;
		}
		}
		return null;
	}

}

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Change log

r37 by jeffrey.blattman on Apr 7, 2012 Diff

fix for older SDK (String.isEmpty())

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Older revisions

r36 by jeffrey.blattman on Apr 1, 2012 Diff

shortcut generation through dedicated
activity with dialog theme

r35 by jeffrey.blattman on Feb 14, 2011 Diff

testing with different user agents

r32 by jeffrey.blattman on Jan 23, 2011 Diff

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