Show QR code when clicking on profile image

app/src/main/java/ch/dissem/apps/abit/AddressDetailFragment.java

@@ -20,13 +20,11 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
-import android.graphics.Bitmap;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import android.text.Editable;
 import android.text.TextWatcher;
-import android.util.Base64;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -39,29 +37,14 @@ import android.widget.Switch;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.MultiFormatWriter;
-import com.google.zxing.WriterException;
-import com.google.zxing.common.BitMatrix;
 import com.mikepenz.community_material_typeface_library.CommunityMaterial;
 import com.mikepenz.google_material_typeface_library.GoogleMaterial;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-
 import ch.dissem.apps.abit.service.Singleton;
 import ch.dissem.apps.abit.util.Drawables;
 import ch.dissem.bitmessage.entity.BitmessageAddress;
-import ch.dissem.bitmessage.exception.ApplicationException;
 import ch.dissem.bitmessage.wif.WifExporter;
 
-import static android.graphics.Color.BLACK;
-import static android.graphics.Color.WHITE;
-import static android.util.Base64.URL_SAFE;
-
 
 /**
  * A fragment representing a single Message detail screen.
@@ -70,7 +53,6 @@ import static android.util.Base64.URL_SAFE;
  * on handsets.
  */
 public class AddressDetailFragment extends Fragment {
-    private static final Logger LOG = LoggerFactory.getLogger(AddressDetailFragment.class);
     /**
      * The fragment argument representing the item ID that this fragment
      * represents.
@@ -78,8 +60,6 @@ public class AddressDetailFragment extends Fragment {
     public static final String ARG_ITEM = "item";
     public static final String EXPORT_POSTFIX = ".keys.dat";
 
-    private static final int QR_CODE_SIZE = 350;
-
     /**
      * The content this fragment is presenting.
      */
@@ -263,50 +243,12 @@ public class AddressDetailFragment extends Fragment {
 
             // QR code
             ImageView qrCode = (ImageView) rootView.findViewById(R.id.qr_code);
-            qrCode.setImageBitmap(qrCode(item));
+            qrCode.setImageBitmap(Drawables.qrCode(item));
         }
 
         return rootView;
     }
 
-    Bitmap qrCode(BitmessageAddress address) {
-        StringBuilder link = new StringBuilder("bitmessage:");
-        link.append(address.getAddress());
-        if (address.getAlias() != null) {
-            link.append("?label=").append(address.getAlias());
-        }
-        if (address.getPubkey() != null) {
-            link.append(address.getAlias() == null ? '?' : '&');
-            ByteArrayOutputStream pubkey = new ByteArrayOutputStream();
-            try {
-                address.getPubkey().writeUnencrypted(pubkey);
-            } catch (IOException e) {
-                throw new ApplicationException(e);
-            }
-            link.append("pubkey=").append(Base64.encodeToString(pubkey.toByteArray(), URL_SAFE));
-        }
-        BitMatrix result;
-        try {
-            result = new MultiFormatWriter().encode(link.toString(),
-                BarcodeFormat.QR_CODE, QR_CODE_SIZE, QR_CODE_SIZE, null);
-        } catch (WriterException e) {
-            LOG.error(e.getMessage(), e);
-            return null;
-        }
-        int w = result.getWidth();
-        int h = result.getHeight();
-        int[] pixels = new int[w * h];
-        for (int y = 0; y < h; y++) {
-            int offset = y * w;
-            for (int x = 0; x < w; x++) {
-                pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
-            }
-        }
-        Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
-        bitmap.setPixels(pixels, 0, QR_CODE_SIZE, 0, 0, w, h);
-        return bitmap;
-    }
-
     @Override
     public void onPause() {
         if (item != null) {

app/src/main/java/ch/dissem/apps/abit/MainActivity.java

@@ -16,16 +16,23 @@
 
 package ch.dissem.apps.abit;
 
+import android.app.Dialog;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Point;
+import android.graphics.drawable.ColorDrawable;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
+import android.view.Display;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.Window;
+import android.view.WindowManager;
 import android.widget.CompoundButton;
+import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.Toast;
 
@@ -61,6 +68,7 @@ import ch.dissem.apps.abit.repository.AndroidMessageRepository;
 import ch.dissem.apps.abit.service.BitmessageService;
 import ch.dissem.apps.abit.service.Singleton;
 import ch.dissem.apps.abit.synchronization.SyncAdapter;
+import ch.dissem.apps.abit.util.Drawables;
 import ch.dissem.apps.abit.util.Labels;
 import ch.dissem.apps.abit.util.Preferences;
 import ch.dissem.bitmessage.BitmessageContext;
@@ -230,6 +238,50 @@ public class MainActivity extends AppCompatActivity
             .withActivity(this)
             .withHeaderBackground(R.drawable.header)
             .withProfiles(profiles)
+            .withOnAccountHeaderProfileImageListener(new AccountHeader.OnAccountHeaderProfileImageListener() {
+                @Override
+                public boolean onProfileImageClick(View view, IProfile profile, boolean current) {
+                    if (current) {
+                        //  Show QR code in modal dialog
+                        final Dialog dialog = new Dialog(MainActivity.this);
+                        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+
+                        ImageView imageView = new ImageView(MainActivity.this);
+                        imageView.setImageBitmap(Drawables.qrCode(Singleton.getIdentity(MainActivity.this)));
+                        imageView.setOnClickListener(new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                dialog.dismiss();
+                            }
+                        });
+                        dialog.addContentView(imageView, new RelativeLayout.LayoutParams(
+                            ViewGroup.LayoutParams.MATCH_PARENT,
+                            ViewGroup.LayoutParams.MATCH_PARENT));
+                        Window window = dialog.getWindow();
+                        if (window != null) {
+                            Display display = window.getWindowManager().getDefaultDisplay();
+                            Point size = new Point();
+                            display.getSize(size);
+                            int dim = size.x < size.y ? size.x : size.y;
+
+                            WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
+                            lp.copyFrom(window.getAttributes());
+                            lp.width = dim;
+                            lp.height = dim;
+
+                            window.setAttributes(lp);
+                        }
+                        dialog.show();
+                        return true;
+                    }
+                    return false;
+                }
+
+                @Override
+                public boolean onProfileImageLongClick(View view, IProfile iProfile, boolean b) {
+                    return false;
+                }
+            })
             .withOnAccountHeaderListener(new AccountHeader.OnAccountHeaderListener() {
                 @Override
                 public boolean onProfileChanged(View view, IProfile profile, boolean current) {

app/src/main/java/ch/dissem/apps/abit/util/Drawables.java

@@ -19,19 +19,40 @@ package ch.dissem.apps.abit.util;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.util.Base64;
 import android.view.Menu;
 import android.view.MenuItem;
 
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
 import com.mikepenz.iconics.IconicsDrawable;
 import com.mikepenz.iconics.typeface.IIcon;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
 import ch.dissem.apps.abit.Identicon;
 import ch.dissem.apps.abit.R;
+import ch.dissem.bitmessage.entity.BitmessageAddress;
+import ch.dissem.bitmessage.exception.ApplicationException;
+
+import static android.graphics.Color.BLACK;
+import static android.graphics.Color.WHITE;
+import static android.util.Base64.URL_SAFE;
 
 /**
  * Some helper methods to work with drawables.
  */
 public class Drawables {
+    private static final Logger LOG = LoggerFactory.getLogger(Drawables.class);
+
+    private static final int QR_CODE_SIZE = 350;
+
     public static MenuItem addIcon(Context ctx, Menu menu, int menuItem, IIcon icon) {
         MenuItem item = menu.findItem(menuItem);
         item.setIcon(new IconicsDrawable(ctx, icon).colorRes(R.color.colorPrimaryDarkText).actionBar());
@@ -49,4 +70,42 @@ public class Drawables {
         identicon.draw(canvas);
         return bitmap;
     }
+
+    public static Bitmap qrCode(BitmessageAddress address) {
+        StringBuilder link = new StringBuilder("bitmessage:");
+        link.append(address.getAddress());
+        if (address.getAlias() != null) {
+            link.append("?label=").append(address.getAlias());
+        }
+        if (address.getPubkey() != null) {
+            link.append(address.getAlias() == null ? '?' : '&');
+            ByteArrayOutputStream pubkey = new ByteArrayOutputStream();
+            try {
+                address.getPubkey().writeUnencrypted(pubkey);
+            } catch (IOException e) {
+                throw new ApplicationException(e);
+            }
+            link.append("pubkey=").append(Base64.encodeToString(pubkey.toByteArray(), URL_SAFE));
+        }
+        BitMatrix result;
+        try {
+            result = new MultiFormatWriter().encode(link.toString(),
+                BarcodeFormat.QR_CODE, QR_CODE_SIZE, QR_CODE_SIZE, null);
+        } catch (WriterException e) {
+            LOG.error(e.getMessage(), e);
+            return null;
+        }
+        int w = result.getWidth();
+        int h = result.getHeight();
+        int[] pixels = new int[w * h];
+        for (int y = 0; y < h; y++) {
+            int offset = y * w;
+            for (int x = 0; x < w; x++) {
+                pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
+            }
+        }
+        Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
+        bitmap.setPixels(pixels, 0, QR_CODE_SIZE, 0, 0, w, h);
+        return bitmap;
+    }
 }