Scroll fixes for certify activity

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java

@@ -930,7 +930,7 @@ public class PgpKeyOperation {
             hashedPacketsGen.setPreferredCompressionAlgorithms(false, PREFERRED_COMPRESSION_ALGORITHMS);
             hashedPacketsGen.setPrimaryUserID(false, primary);
 
-            /* critical subpackets: */
+            /* critical subpackets: we consider those important for a modern pgp implementation */
             hashedPacketsGen.setSignatureCreationTime(true, new Date());
             // Request that senders add the MDC to the message (authenticate unsigned messages)
             hashedPacketsGen.setFeature(true, Features.FEATURE_MODIFICATION_DETECTION);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java

@@ -40,6 +40,7 @@ import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;
 import android.widget.ImageView;
 import android.widget.ListView;
+import android.widget.ScrollView;
 import android.widget.Spinner;
 import android.widget.TextView;
 
@@ -71,6 +72,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements LoaderManag
     private ImageView mActionCertifyImage;
     private CheckBox mUploadKeyCheckbox;
     private Spinner mSelectKeyserverSpinner;
+    private ScrollView mScrollView;
 
     private CertifyKeySpinner mCertifyKeySpinner;
 
@@ -96,6 +98,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements LoaderManag
         mCertifyButton = findViewById(R.id.certify_key_certify_button);
         mActionCertifyImage = (ImageView) findViewById(R.id.certify_key_action_certify_image);
         mUserIds = (ListView) findViewById(R.id.view_key_user_ids);
+        mScrollView = (ScrollView) findViewById(R.id.certify_scroll_view);
 
         // make certify image gray, like action icons
         mActionCertifyImage.setColorFilter(getResources().getColor(R.color.tertiary_text_light),
@@ -141,6 +144,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements LoaderManag
                     if (mMasterKeyId == 0) {
                         Notify.showNotify(CertifyKeyActivity.this, getString(R.string.select_key_to_certify),
                                 Notify.Style.ERROR);
+                        scrollUp();
                     } else {
                         initiateCertifying();
                     }
@@ -165,6 +169,14 @@ public class CertifyKeyActivity extends ActionBarActivity implements LoaderManag
         getSupportLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
     }
 
+    private void scrollUp() {
+        mScrollView.post(new Runnable() {
+            public void run() {
+                mScrollView.fullScroll(ScrollView.FOCUS_UP);
+            }
+        });
+    }
+
     static final String USER_IDS_SELECTION = UserIds.IS_REVOKED + " = 0";
 
     static final String[] KEYRING_PROJECTION =
@@ -217,6 +229,9 @@ public class CertifyKeyActivity extends ActionBarActivity implements LoaderManag
                 break;
             case LOADER_ID_USER_IDS:
                 mUserIdsAdapter.swapCursor(data);
+                // when some user ids are pre-checked, the focus is requested and the scroll view goes
+                // down. This fixes it.
+                scrollUp();
                 break;
         }
     }

OpenKeychain/src/main/res/layout/certify_key_activity.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -8,6 +7,7 @@
     <include layout="@layout/notify_area" />
 
     <ScrollView
+        android:id="@+id/certify_scroll_view"
         android:layout_width="wrap_content"
         android:layout_height="match_parent">
 
@@ -27,9 +27,9 @@
                 android:text="@string/section_certification_key" />
 
             <org.sufficientlysecure.keychain.ui.widget.CertifyKeySpinner
-                    android:id="@+id/certify_key_spinner"
+                android:id="@+id/certify_key_spinner"
-                    android:layout_width="match_parent"
+                android:layout_width="match_parent"
-                    android:layout_height="wrap_content" />
+                android:layout_height="wrap_content" />
 
             <TextView
                 style="@style/SectionHeader"
@@ -115,8 +115,7 @@
             <org.sufficientlysecure.keychain.ui.widget.FixedListView
                 android:id="@+id/view_key_user_ids"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
+                android:layout_height="wrap_content" />
-                android:descendantFocusability="blocksDescendants" />
 
             <TextView
                 style="@style/SectionHeader"
@@ -180,7 +179,6 @@
 
             </LinearLayout>
 
-
         </LinearLayout>
 
     </ScrollView>