reduce the need of Context references by using the global app context

src/net/zaczek/launcherforblind/AppsActivity.java

@@ -45,7 +45,7 @@ protected ListEntry[] getList() {
 				if (TextUtils.isEmpty(lb)) {
 					lb = info.activityInfo.name.toString();
 				}
-				result.add(new AppListEntry(lb, this, info));
+				result.add(new AppListEntry(lb, info));
 			}
 		}
 

src/net/zaczek/launcherforblind/Helper.java

@@ -25,27 +25,32 @@ public static void dial(Context ctx, String number) {
 		}
 	}
 
-	/* 
-	 * Returns the contact name to a given number or returns the number if no name was found
+	/*
+	 * Returns the contact name to a given number or returns the number if no
+	 * name was found
 	 */
 	public static String getContactName(Context ctx, String phoneNumber) {
-		ContentResolver cr = ctx.getContentResolver();
-		Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,
+		final ContentResolver cr = ctx.getContentResolver();
+		final Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,
 				Uri.encode(phoneNumber));
-		Cursor cursor = cr.query(uri,
-				new String[] { PhoneLookup.DISPLAY_NAME }, null, null, null);
-		if (cursor == null) {
-			return null;
-		}
+		Cursor cursor = null;
 		String contactName = phoneNumber;
-		if (cursor.moveToFirst()) {
-			contactName = cursor.getString(cursor
-					.getColumnIndex(PhoneLookup.DISPLAY_NAME));
-		}
-		if (cursor != null && !cursor.isClosed()) {
-			cursor.close();
+		try {
+			cursor = cr.query(uri, new String[] { PhoneLookup.DISPLAY_NAME },
+					null, null, null);
+			if (cursor == null) {
+				return null;
+			}
+
+			if (cursor.moveToFirst()) {
+				contactName = cursor.getString(cursor
+						.getColumnIndex(PhoneLookup.DISPLAY_NAME));
+			}
+		} finally {
+			if (cursor != null && !cursor.isClosed()) {
+				cursor.close();
+			}
 		}
 		return contactName;
 	}
-
 }

src/net/zaczek/launcherforblind/MainActivity.java

@@ -27,15 +27,15 @@ public void onCreate(Bundle savedInstanceState) {
 	protected ListEntry[] getList() {
 		return new ListEntry[] {
 				new StaticListEntry("Start Schirm"),
-				new NavigatorListEntry(getString(R.string.phonebook), this,
+				new NavigatorListEntry(getString(R.string.phonebook),
 						PhoneBookActivity.class),
-				new NavigatorListEntry(getString(R.string.dialer), this,
+				new NavigatorListEntry(getString(R.string.dialer),
 						DialerActivity.class),
-				new NavigatorListEntry(getString(R.string.missedcalls), this,
+				new NavigatorListEntry(getString(R.string.missedcalls),
 						MissedCallsActivity.class),
-				new NavigatorListEntry(getString(R.string.sms), this,
+				new NavigatorListEntry(getString(R.string.sms),
 						SMSActivity.class),
-				new NavigatorListEntry(getString(R.string.apps), this,
+				new NavigatorListEntry(getString(R.string.apps),
 						AppsActivity.class),
 				new TimeListEntry(getString(R.string.currenttime),
 						getString(R.string.time_format)), };

src/net/zaczek/launcherforblind/MyApplication.java

@@ -1,9 +1,17 @@
 package net.zaczek.launcherforblind;
 
 import android.app.Application;
+import android.content.Context;
 
 public class MyApplication extends Application {
-	public void onCreate() {
-		super.onCreate();
-	}
+	private static Context context;
+
+    public void onCreate(){
+        super.onCreate();
+        MyApplication.context = getApplicationContext();
+    }
+
+    public static Context getAppContext() {
+        return MyApplication.context;
+    }
 }

src/net/zaczek/launcherforblind/SMSActivity.java

@@ -13,9 +13,11 @@
 public class SMSActivity extends AbstractCursorActivity {
 	private static final String TAG = "launcherforblind";
 
-	private static final String[] PROJECTION = new String[] { "address", "date", "body" };
+	private static final String[] PROJECTION = new String[] { "address",
+			"date", "body" };
 
 	private TextView txtMain;
+	private boolean confirmed = false;
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
@@ -38,11 +40,28 @@ protected ListEntry getListEntry(Cursor c) {
 		long date = c.getLong(1);
 		String strDate = DateUtils.formatDateTime(this, date,
 				DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_TIME);
-		return new SMSListEntry(this, c.getString(0), strDate, c.getString(2));
+		return new SMSListEntry(c.getString(0), strDate, c.getString(2));
 	}
 
 	@Override
 	protected void giveFeedback(String label) {
 		txtMain.setText(label);
+		confirmed = false;
+	}
+
+	@Override
+	protected void onExecute() {
+		super.onExecute();
+		final SMSListEntry current = (SMSListEntry) getCurrentListEntry();
+		if (current == null)
+			return;
+
+		if (!confirmed) {
+			Helper.confirmDial(this, current.getLabel());
+			confirmed = true;
+		} else {
+			// actually dial
+			Helper.dial(this, current.getNumber());
+		}
 	}
 }

src/net/zaczek/launcherforblind/listentries/AppListEntry.java

@@ -1,28 +1,30 @@
 package net.zaczek.launcherforblind.listentries;
 
+import net.zaczek.launcherforblind.MyApplication;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
 
-public class AppListEntry extends AbstractListEntry implements Comparable<AppListEntry> {
+public class AppListEntry extends AbstractListEntry implements
+		Comparable<AppListEntry> {
 	private ResolveInfo mInfo;
-	private Context mCtx;
 
-	public AppListEntry(String label, Context ctx, ResolveInfo info) {
+	public AppListEntry(String label, ResolveInfo info) {
 		super(label);
-		mCtx = ctx;
 		mInfo = info;
 	}
 
 	@Override
 	public void onSelected() {
-		final Intent i = mCtx.getPackageManager().getLaunchIntentForPackage(
+		final Context ctx = MyApplication.getAppContext();
+		final Intent i = ctx.getPackageManager().getLaunchIntentForPackage(
 				mInfo.activityInfo.packageName);
-		mCtx.startActivity(i);
+		i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+		ctx.startActivity(i);
 	}
 
 	@Override
-	public int compareTo(AppListEntry another) {		
+	public int compareTo(AppListEntry another) {
 		return getLabel().compareTo(another.getLabel());
 	}
 }

src/net/zaczek/launcherforblind/listentries/NavigatorListEntry.java

@@ -1,5 +1,6 @@
 package net.zaczek.launcherforblind.listentries;
 
+import net.zaczek.launcherforblind.MyApplication;
 import android.content.Context;
 import android.content.Intent;
 import android.util.Log;
@@ -9,21 +10,22 @@ public class NavigatorListEntry extends AbstractListEntry {
 
 	@SuppressWarnings("rawtypes")
 	private Class mActivityClass;
-	private Context mCtx;
 
 	@SuppressWarnings("rawtypes")
-	public NavigatorListEntry(String label, Context ctx, Class activityClass) {
+	public NavigatorListEntry(String label, Class activityClass) {
 		super(label);
 
-		mCtx = ctx;
 		mActivityClass = activityClass;
 	}
 
 	@Override
 	public void onSelected() {
 		if (mActivityClass != null) {
+			final Context ctx = MyApplication.getAppContext();
 			Log.i(TAG, "Starting activity " + mActivityClass);
-			mCtx.startActivity(new Intent(mCtx, mActivityClass));
+			Intent i = new Intent(ctx, mActivityClass);
+			i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+			ctx.startActivity(i);
 		} else {
 			Log.w(TAG, "Unable to navigate - no class provided");
 		}

src/net/zaczek/launcherforblind/listentries/SMSListEntry.java

@@ -1,25 +1,24 @@
 package net.zaczek.launcherforblind.listentries;
 
 import net.zaczek.launcherforblind.Helper;
-import android.content.Context;
+import net.zaczek.launcherforblind.MyApplication;
 
 public class SMSListEntry extends AbstractListEntry {
 	String mNumber;
 	String mDate;
 	String mMessage;
-	Context mCtx;
-
-	public SMSListEntry(Context ctx, String number, String date, String msg) {
+
+	public SMSListEntry(String number, String date, String msg) {
 		super(date);
-		mCtx = ctx;
 		mNumber = number;
 		mDate = date;
 		mMessage = msg;
 	}
-	
+
 	@Override
 	public String getLabelToSay() {
-		return Helper.getContactName(mCtx, mNumber) + ", " + mDate + ".\n" + mMessage;
+		return Helper.getContactName(MyApplication.getAppContext(), mNumber)
+				+ ", " + mDate + ".\n" + mMessage;
 	}
 
 	public String getNumber() {