Basic logic for intercepting missed calls

astrid/AndroidManifest.xml

@@ -32,6 +32,8 @@
   <uses-permission android:name="android.permission.READ_CONTACTS" />  
   <!-- for push notifications -->
   <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
+  <!-- for missed call reminders -->
+  <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
 
   <!-- ============================================== Exported Permissions = -->
 
@@ -199,6 +201,12 @@
       </intent-filter>
     </receiver>
     
+    <receiver android:name="com.todoroo.astrid.calls.PhoneStateChangedReceiver">
+        <intent-filter>
+            <action android:name="android.intent.action.PHONE_STATE"/>
+        </intent-filter>
+    </receiver>
+
     <!-- ======================================================== Services = -->
 
     <service android:name="com.todoroo.astrid.widget.TasksWidget$WidgetUpdateService" />

astrid/plugin-src/com/todoroo/astrid/calls/PhoneStateChangedReceiver.java

@@ -0,0 +1,56 @@
+package com.todoroo.astrid.calls;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.provider.CallLog.Calls;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+
+import com.todoroo.andlib.utility.Preferences;
+
+@SuppressWarnings("nls")
+public class PhoneStateChangedReceiver extends BroadcastReceiver {
+
+    private static final String PREF_LAST_INCOMING_NUMBER = "last_incoming_number";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
+
+        if (TelephonyManager.EXTRA_STATE_RINGING.equals(state)) {
+            String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
+            System.err.println("Ringing: " + number);
+            if (TextUtils.isEmpty(number))
+                return;
+
+            Preferences.setString(PREF_LAST_INCOMING_NUMBER, number);
+        } else if (TelephonyManager.EXTRA_STATE_IDLE.equals(state)) {
+            String lastNumber = Preferences.getStringValue(PREF_LAST_INCOMING_NUMBER);
+            if (TextUtils.isEmpty(lastNumber))
+                return;
+
+            Preferences.clear(PREF_LAST_INCOMING_NUMBER);
+            Cursor calls = context.getContentResolver().query(
+                    Calls.CONTENT_URI,
+                    null,
+                    Calls.TYPE + " = ? AND " + Calls.NEW + " = ? AND " + Calls.NUMBER + " = ?" ,
+                    new String[] { Integer.toString(Calls.MISSED_TYPE), "1", lastNumber },
+                    Calls.DATE + " DESC"
+                    );
+
+            try {
+                if (calls.getCount() > 0) {
+                    calls.moveToFirst();
+                    System.err.println("Should display notification for number: " + lastNumber);
+                }
+            } finally {
+                calls.close();
+            }
+        } else {
+            System.err.println("Other state: " + state);
+        }
+    }
+
+}