- Gravatars are loaded in Contact List and Contact Selection List

app/build.gradle

@@ -63,4 +63,6 @@ dependencies {
     annotationProcessor 'android.arch.lifecycle:compiler:1.0.0'
     annotationProcessor 'android.arch.persistence.room:compiler:1.0.0'
     annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+
+    compile 'com.squareup.picasso:picasso:2.5.2'
 }

app/schemas/cy.agorise.crystalwallet.dao.CrystalDatabase/2.json

@@ -2,7 +2,7 @@
   "formatVersion": 1,
   "database": {
     "version": 2,
-    "identityHash": "3ec53bc71906b5abcabeaefcd7505bc1",
+    "identityHash": "22cb2a56b28a9f7088ec98d6a72f9f67",
     "entities": [
       {
         "tableName": "account_seed",
@@ -284,6 +284,14 @@
               "name"
             ],
             "createSql": "CREATE UNIQUE INDEX `index_contact_name` ON `${TABLE_NAME}` (`name`)"
+          },
+          {
+            "name": "index_contact_email",
+            "unique": false,
+            "columnNames": [
+              "email"
+            ],
+            "createSql": "CREATE  INDEX `index_contact_email` ON `${TABLE_NAME}` (`email`)"
           }
         ],
         "foreignKeys": []
@@ -684,7 +692,7 @@
     ],
     "setupQueries": [
       "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
-      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"3ec53bc71906b5abcabeaefcd7505bc1\")"
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"22cb2a56b28a9f7088ec98d6a72f9f67\")"
     ]
   }
 }

app/src/main/java/cy/agorise/crystalwallet/dao/ContactDao.java

@@ -27,7 +27,7 @@ public interface ContactDao {
     @Query("SELECT * FROM contact ORDER BY name ASC")
     LivePagedListProvider<Integer, Contact>  contactsByName();
 
-    @Query("SELECT c.* FROM contact c WHERE c.id IN (SELECT DISTINCT(ca.contact_id) FROM contact_address ca WHERE ca.crypto_net == :cryptoNet) ORDER BY name ASC")
+    @Query("SELECT c.* FROM contact c WHERE c.id IN (SELECT DISTINCT(ca.contact_id) FROM contact_address ca WHERE ca.crypto_net == :cryptoNet) ORDER BY name ASC, email ASC")
     LivePagedListProvider<Integer, Contact>  contactsByNameAndCryptoNet(String cryptoNet);
 
     @Query("SELECT * FROM contact WHERE id = :id")

app/src/main/java/cy/agorise/crystalwallet/models/Contact.java

@@ -22,7 +22,7 @@ import cy.agorise.crystalwallet.enums.CryptoNet;
  */
 
 @Entity(tableName="contact",
-        indices = {@Index("id"),@Index(value = {"name"}, unique=true)})
+        indices = {@Index("id"),@Index(value = {"name"}, unique=true),@Index("email")})
 public class Contact {
 
     /**
@@ -69,7 +69,7 @@ public class Contact {
     }
 
     public String getEmail() {
-        return mEmail;
+        return this.mEmail;
     }
 
     public void setEmail(String email) {

app/src/main/java/cy/agorise/crystalwallet/util/CircleTransformation.java

@@ -0,0 +1,47 @@
+package cy.agorise.crystalwallet.util;
+
+/**
+ * Created by Henry Varona on 25/2/2018.
+ */
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+
+import com.squareup.picasso.Transformation;
+
+public class CircleTransformation implements Transformation {
+    @Override
+    public Bitmap transform(Bitmap source) {
+        int size = Math.min(source.getWidth(), source.getHeight());
+
+        int x = (source.getWidth() - size) / 2;
+        int y = (source.getHeight() - size) / 2;
+
+        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
+        if (squaredBitmap != source) {
+            source.recycle();
+        }
+
+        Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
+
+        Canvas canvas = new Canvas(bitmap);
+        Paint paint = new Paint();
+        BitmapShader shader = new BitmapShader(squaredBitmap,
+                BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
+        paint.setShader(shader);
+        paint.setAntiAlias(true);
+
+        float r = size / 2f;
+        canvas.drawCircle(r, r, r, paint);
+
+        squaredBitmap.recycle();
+        return bitmap;
+    }
+
+    @Override
+    public String key() {
+        return "CircleTransformation";
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/util/MD5Hash.java

@@ -0,0 +1,22 @@
+package cy.agorise.crystalwallet.util;
+
+/**
+ * Created by Henry Varona on 24/2/2018.
+ */
+
+public class MD5Hash {
+
+    static public String hash(String md5) {
+        try {
+            java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
+            byte[] array = md.digest(md5.getBytes());
+            StringBuffer sb = new StringBuffer();
+            for (int i = 0; i < array.length; ++i) {
+                sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1,3));
+            }
+            return sb.toString();
+        } catch (java.security.NoSuchAlgorithmException e) {
+        }
+        return null;
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/views/ContactSelectionViewHolder.java

@@ -9,10 +9,14 @@ import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.squareup.picasso.Picasso;
+
 import cy.agorise.crystalwallet.R;
 import cy.agorise.crystalwallet.activities.CreateContactActivity;
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
 import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.util.CircleTransformation;
+import cy.agorise.crystalwallet.util.MD5Hash;
 
 /**
  * Created by Henry Varona on 2/16/2018.
@@ -62,6 +66,16 @@ public class ContactSelectionViewHolder extends RecyclerView.ViewHolder {
             tvName.setText(contact.getName());
             tvLastPaid.setText("Paid: 1 Jan, 2001 01:01");
 
+            if (contact.getEmail() != null){
+                String emailHash = MD5Hash.hash(contact.getEmail());
+                String gravatarUrl = "http://www.gravatar.com/avatar/" + emailHash + "?s=204&d=404";
+
+                Picasso.with(this.context)
+                        .load(gravatarUrl)
+                        .transform(new CircleTransformation())
+                        .into(ivThumbnail);
+            }
+
             this.itemView.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View view) {

app/src/main/java/cy/agorise/crystalwallet/views/ContactViewHolder.java

@@ -6,14 +6,19 @@ import android.content.Intent;
 import android.provider.ContactsContract;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.ThemedSpinnerAdapter;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.squareup.picasso.Picasso;
+
 import cy.agorise.crystalwallet.R;
 import cy.agorise.crystalwallet.activities.CreateContactActivity;
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
 import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.util.CircleTransformation;
+import cy.agorise.crystalwallet.util.MD5Hash;
 
 /**
  * Created by Henry Varona on 1/17/2017.
@@ -67,6 +72,16 @@ public class ContactViewHolder extends RecyclerView.ViewHolder {
                 }
             });
 
+            if (contact.getEmail() != null){
+                String emailHash = MD5Hash.hash(contact.getEmail());
+                String gravatarUrl = "http://www.gravatar.com/avatar/" + emailHash + "?s=204&d=404";
+
+                Picasso.with(this.context)
+                        .load(gravatarUrl)
+                        .transform(new CircleTransformation())
+                        .into(ivThumbnail);
+            }
+
             this.ivDeleteContact.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View view) {