Add preference for spacing between rows

src/main/java/com/todoroo/andlib/utility/AndroidUtilities.java

@@ -11,6 +11,7 @@ import android.content.ContentValues;
 import android.content.Context;
 import android.os.Build;
 import android.text.InputType;
+import android.util.DisplayMetrics;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.TextView;
@@ -203,6 +204,11 @@ public class AndroidUtilities {
         }
     }
 
+    public static int convertDpToPixels(DisplayMetrics displayMetrics, int dp) {
+        // developer.android.com/guide/practices/screens_support.html#dips-pels
+        return (int) (dp * displayMetrics.density + 0.5f);
+    }
+
     public static boolean preLollipop() {
         return !atLeastLollipop();
     }

src/main/java/org/tasks/preferences/AppearancePreferences.java

@@ -12,15 +12,21 @@ import org.tasks.R;
 import org.tasks.activities.FilterSelectionActivity;
 import org.tasks.analytics.Tracker;
 import org.tasks.analytics.Tracking;
+import org.tasks.dialogs.SeekBarDialog;
 import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.InjectingPreferenceActivity;
+import org.tasks.locale.Locale;
 
 import javax.inject.Inject;
 
-public class AppearancePreferences extends InjectingPreferenceActivity {
+import static org.tasks.dialogs.SeekBarDialog.newSeekBarDialog;
+
+public class AppearancePreferences extends InjectingPreferenceActivity implements SeekBarDialog.SeekBarCallback {
 
     private static final int REQUEST_CUSTOMIZE = 1004;
     private static final int REQUEST_DEFAULT_LIST = 1005;
+    private static final int REQUEST_ROW_PADDING = 1006;
+    private static final String FRAG_TAG_ROW_PADDING_SEEKBAR = "frag_tag_row_padding_seekbar";
 
     private static final String EXTRA_BUNDLE = "extra_bundle";
     public static final String EXTRA_RESTART = "extra_restart";
@@ -30,6 +36,7 @@ public class AppearancePreferences extends InjectingPreferenceActivity {
     @Inject DefaultFilterProvider defaultFilterProvider;
     @Inject Tracker tracker;
     @Inject Broadcaster broadcaster;
+    @Inject Locale locale;
 
     private Bundle result;
 
@@ -52,6 +59,12 @@ public class AppearancePreferences extends InjectingPreferenceActivity {
             startActivityForResult(new Intent(AppearancePreferences.this, BeastModePreferences.class), REQUEST_CUSTOMIZE);
             return true;
         });
+        findPreference(R.string.p_rowPadding).setOnPreferenceClickListener(preference -> {
+            newSeekBarDialog(R.layout.dialog_font_size_seekbar, 0, 16, preferences.getRowPadding(), REQUEST_ROW_PADDING)
+                    .show(getFragmentManager(), FRAG_TAG_ROW_PADDING_SEEKBAR);
+            return false;
+        });
+        updateRowPadding();
         Preference defaultList = findPreference(getString(R.string.p_default_list));
         Filter filter = defaultFilterProvider.getDefaultFilter();
         defaultList.setSummary(filter.listingTitle);
@@ -108,4 +121,17 @@ public class AppearancePreferences extends InjectingPreferenceActivity {
     public void inject(ActivityComponent component) {
         component.inject(this);
     }
+
+    @Override
+    public void valueSelected(int value, int requestCode) {
+        if (requestCode == REQUEST_ROW_PADDING) {
+            preferences.setInt(R.string.p_rowPadding, value);
+            result.putBoolean(EXTRA_RESTART, true);
+            updateRowPadding();
+        }
+    }
+
+    private void updateRowPadding() {
+        findPreference(R.string.p_rowPadding).setSummary(locale.formatNumber(preferences.getRowPadding()));
+    }
 }

src/main/java/org/tasks/preferences/Preferences.java

@@ -149,6 +149,10 @@ public class Preferences {
         return getIntegerFromString(R.string.p_default_reminders_mode_key, 0);
     }
 
+    public int getRowPadding() {
+        return getInt(R.string.p_rowPadding, 16);
+    }
+
     public int getIntegerFromString(int keyResource, int defaultValue) {
         Resources r = context.getResources();
         String value = prefs.getString(r.getString(keyResource), null);

src/main/java/org/tasks/tasklist/ViewHolder.java

@@ -126,7 +126,8 @@ class ViewHolder extends MultiSelectorBindingHolder {
                CheckBoxes checkBoxes, TagFormatter tagFormatter,
                int textColorOverdue, int textColorSecondary, int textColorHint, TaskDao taskDao,
                DialogBuilder dialogBuilder, ViewHolderCallbacks callback,
-               DisplayMetrics metrics, int background, int selectedColor, MultiSelector multiSelector) {
+               DisplayMetrics metrics, int background, int selectedColor, MultiSelector multiSelector,
+               int rowPadding) {
         super(view, multiSelector);
         this.context = context;
         this.checkBoxes = checkBoxes;
@@ -150,11 +151,7 @@ class ViewHolder extends MultiSelectorBindingHolder {
             nameView.setEllipsize(null);
         }
 
-        if (fontSize < 16) {
-            // developer.android.com/guide/practices/screens_support.html#dips-pels
-            int fontSizeInDP = (int) (fontSize * metrics.density + 0.5f);
-            rowBody.setPadding(0, fontSizeInDP, 0, fontSizeInDP);
-        }
+        rowBody.setPadding(0, rowPadding, 0, rowPadding);
 
         nameView.setTextSize(fontSize);
         int fontSizeDetails = Math.max(10, fontSize - 2);

src/main/java/org/tasks/tasklist/ViewHolderFactory.java

@@ -16,6 +16,7 @@ import org.tasks.ui.CheckBoxes;
 import javax.inject.Inject;
 
 import static android.support.v4.content.ContextCompat.getColor;
+import static com.todoroo.andlib.utility.AndroidUtilities.convertDpToPixels;
 import static org.tasks.preferences.ResourceResolver.getData;
 import static org.tasks.preferences.ResourceResolver.getResourceId;
 
@@ -34,6 +35,7 @@ public class ViewHolderFactory {
     private final DisplayMetrics metrics;
     private final int background;
     private final int selectedColor;
+    private final int rowPadding;
 
     @Inject
     public ViewHolderFactory(@ForActivity Context context, Preferences preferences,
@@ -52,11 +54,12 @@ public class ViewHolderFactory {
         showFullTaskTitle = preferences.getBoolean(R.string.p_fullTaskTitle, false);
         fontSize = preferences.getIntegerFromString(R.string.p_fontSize, 16);
         metrics = context.getResources().getDisplayMetrics();
+        rowPadding = convertDpToPixels(metrics, preferences.getInt(R.string.p_rowPadding, 16));
     }
 
     ViewHolder newViewHolder(ViewGroup viewGroup, ViewHolder.ViewHolderCallbacks callbacks, MultiSelector multiSelector) {
         return new ViewHolder(context, viewGroup, showFullTaskTitle, fontSize, checkBoxes,
                 tagFormatter, textColorOverdue, textColorSecondary, textColorHint, taskDao,
-                dialogBuilder, callbacks, metrics, background, selectedColor, multiSelector);
+                dialogBuilder, callbacks, metrics, background, selectedColor, multiSelector, rowPadding);
     }
 }

src/main/res/layout/task_adapter_row_body.xml

@@ -6,9 +6,7 @@
     android:background="?attr/selectableItemBackground"
     android:clickable="true"
     android:focusable="true"
-    android:orientation="vertical"
-    android:paddingBottom="16dp"
-    android:paddingTop="16dp">
+    android:orientation="vertical">
 
     <!-- row 1 -->
 

src/main/res/values/keys.xml

@@ -89,6 +89,7 @@
   <!-- ======================================================= APPEARANCE == -->
 
   <string name="p_fontSize">font_size</string>
+  <string name="p_rowPadding">row_padding</string>
 
   <string name="p_voiceRemindersEnabled">voiceRemindersEnabled</string>
 

src/main/res/xml/preferences_appearance.xml

@@ -15,6 +15,11 @@
             android:key="@string/p_fontSize"
             android:title="@string/font_size" />
 
+        <Preference
+            android:defaultValue="16"
+            android:key="@string/p_rowPadding"
+            android:title="Row spacing" />
+
         <com.todoroo.astrid.ui.MultilineCheckboxPreference
             android:defaultValue="false"
             android:key="@string/p_fullTaskTitle"