Fix alignment of app drawer folders when multiline app names enabled (L…

…awnchairLauncher#1833)

* Fix alignment of app drawer folders when multiline app names enabled

The FolderIcon container's height is already set to allAppsCellHeightPx
in AllAppsGridAdapter, so use match_parent to set the correct height on
the FolderIcon. Then vertically align by matching BubbleTextView's
onMeasure implementation.

* Only adjust padding of folders in the app drawer

lawnchair/res/layout/all_apps_folder_icon.xml

@@ -21,7 +21,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/folder_icon"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
+    android:layout_height="match_parent"
     android:layout_gravity="center"
     android:orientation="vertical"
     android:paddingLeft="@dimen/dynamic_grid_cell_padding_x"

src/com/android/launcher3/folder/FolderIcon.java

@@ -23,22 +23,20 @@
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.Canvas;
-import android.graphics.Color;
+import android.graphics.Paint;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.Parcelable;
 import android.support.annotation.NonNull;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.util.Property;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
-
 import ch.deletescape.lawnchair.LawnchairLauncher;
 import ch.deletescape.lawnchair.LawnchairUtilsKt;
 import ch.deletescape.lawnchair.gestures.BlankGestureHandler;
@@ -56,7 +54,6 @@
 import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.FolderInfo.FolderListener;
-import com.android.launcher3.IconCache.ItemInfoUpdateReceiver;
 import com.android.launcher3.ItemInfo;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.Launcher;
@@ -81,7 +78,6 @@
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.util.Thunk;
 import com.android.launcher3.widget.PendingAddShortcutInfo;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
@@ -657,6 +653,22 @@ protected boolean verifyDrawable(@NonNull Drawable who) {
         return mPreviewItemManager.verifyDrawable(who) || super.verifyDrawable(who);
     }
 
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        if (!mInfo.useIconMode(mLauncher) && isInAppDrawer()) {
+            DeviceProfile grid = mLauncher.getDeviceProfile();
+            int drawablePadding = grid.allAppsIconDrawablePaddingPx;
+
+            Paint.FontMetrics fm = mFolderName.getPaint().getFontMetrics();
+            int cellHeightPx = mFolderName.getIconSize() + drawablePadding +
+                    (int) Math.ceil(fm.bottom - fm.top);
+            int height = MeasureSpec.getSize(heightMeasureSpec);
+            setPadding(getPaddingLeft(), (height - cellHeightPx) / 2, getPaddingRight(),
+                    getPaddingBottom());
+        }
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+
     @Override
     public void onItemsChanged(boolean animate) {
         if (mInfo.isCoverMode()) {