add scroll to BottomNavigationView

Author: Yanndroid

yanndroid/oneui/src/main/java/de/dlyt/yanndroid/oneui/view/BottomNavigationView.java

@@ -7,6 +7,7 @@
 import android.provider.Settings;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.Display;
 import android.view.View;
 import android.view.ViewGroup;
@@ -41,18 +42,99 @@ public void updateWidget(Activity activity) {
         mActivity = activity;
         mTextViews = new ArrayList<>();
 
+        Float[] tabCount = new Float[getTabCount()];
+        float f = 0.0f;
+
         for (int tabPosition = 0; tabPosition < getTabCount(); tabPosition++) {
             Tab tab = getTabAt(tabPosition);
             ViewGroup tabView = (ViewGroup) getTabView(tabPosition);
             if (!(tab == null || tabView == null)) {
                 TextView textView = tab.seslGetTextView();
                 mTextViews.add(textView);
                 ViewSupport.setPointerIcon(tabView, 1000);
+
+                tabCount[tabPosition] = getTabTextWidth(tab.seslGetTextView());
+                f += tabCount[tabPosition];
             }
         }
+
+        setViewDimens(tabCount, f);
         invalidateTabLayout();
     }
 
+    private void setViewDimens(Float[] fArr, float f) {
+        int i;
+        int tabCount = getTabCount();
+        if (tabCount > 0) {
+            int dimensionPixelSize = getResources().getDimensionPixelSize(R.dimen.tablayout_start_end_margin);
+            i = getContext().getResources().getDisplayMetrics().widthPixels;
+            int i2 = i - (dimensionPixelSize * 2);
+            float dimensionPixelSize2 = (float) getResources().getDimensionPixelSize(R.dimen.tablayout_text_padding);
+            float f2 = (float) i2;
+            float f3 = f2 / ((float) tabCount);
+            float f4 = dimensionPixelSize2 * 2.0f;
+            float f5 = (0.75f * f2) - f4;
+            float f6 = 0.0f;
+            int i3 = 0;
+            int i4 = 0;
+            for (int i5 = 0; i5 < tabCount; i5++) {
+                Log.d("BottomNavigationView", "i : " + i5 + ", width : " + fArr[i5]);
+                if (f5 < fArr[i5].floatValue()) {
+                    i3 = (int) (((float) i3) + (fArr[i5].floatValue() - f5));
+                    fArr[i5] = Float.valueOf(f5);
+                    i4++;
+                    f6 = f5;
+                } else if (f6 < fArr[i5].floatValue()) {
+                    f6 = fArr[i5].floatValue();
+                }
+            }
+            float f7 = f - ((float) i3);
+            setTabMode(0);
+            Log.d("BottomNavigationView", "[MODE_SCROLLABLE]");
+            Log.d("BottomNavigationView", "availableContentWidth : " + i2 + ", tabTextPaddingLeftRight : " + dimensionPixelSize2);
+            ViewGroup viewGroup = (ViewGroup) getChildAt(0);
+            int i6 = (tabCount - i4) * 2;
+            int i7 = i6 > 0 ? ((int) ((f2 - f7) - ((((float) i4) * dimensionPixelSize2) * 2.0f))) / i6 : 0;
+            int i8 = (int) dimensionPixelSize2;
+            int i9 = -1;
+            boolean z = true;
+            if (i7 < i8) {
+                i7 = i8;
+            } else {
+                float f8 = f6 + dimensionPixelSize2 + dimensionPixelSize2;
+                if (f3 >= f8) {
+                    setTabMode(1);
+                    for (int i10 = 0; i10 < tabCount; i10++) {
+                        ((ViewGroup) viewGroup.getChildAt(i10)).getChildAt(0).getLayoutParams().width = -1;
+                        getTabAt(i10).seslGetTextView().setMaxWidth(i2);
+                        getTabAt(i10).seslGetTextView().setMinimumWidth(0);
+                        getTabAt(i10).seslGetTextView().setPadding(0, 0, 0, 0);
+                    }
+                    Log.d("BottomNavigationView", "[MODE_FIXED] TabCount : " + tabCount + ", minNeededTabWidth : " + f3 + ", maxTabWidth : " + f8);
+                    return;
+                }
+            }
+            int i11 = 0;
+            while (i11 < tabCount) {
+                boolean z2 = fArr[i11].floatValue() >= f5 ? z : false;
+                int floatValue = (int) (fArr[i11].floatValue() + ((z2 ? dimensionPixelSize2 : (float) i7) * 2.0f));
+                ViewGroup.LayoutParams layoutParams = viewGroup.getChildAt(i11).getLayoutParams();
+                layoutParams.width = floatValue;
+                layoutParams.height = i9;
+                viewGroup.getChildAt(i11).setMinimumWidth(floatValue);
+                int i12 = z2 ? 0 : (int) (((float) i7) - dimensionPixelSize2);
+                getTabAt(i11).seslGetTextView().setMaxWidth((int) f5);
+                getTabAt(i11).seslGetTextView().setMinimumWidth(floatValue - ((int) f4));
+                getTabAt(i11).seslGetTextView().setPadding(i12, 0, i12, 0);
+                Log.d("BottomNavigationView", "params.width : " + layoutParams.width + ", tabWidthList[" + i11 + "] : " + fArr[i11] + ", LeftRightPadding : " + (i7 * 2));
+                i11++;
+                i9 = -1;
+                z = true;
+            }
+            requestLayout();
+        }
+    }
+
     private void invalidateTabLayout() {
         ArrayList<Float> tabTextWidthList = new ArrayList<>();
         float tabTextWidthSum = 0.0f;