巧妙均分TabLayout tab

    /**     * 均分TabLayout tab     * 利用LinearLayout weight 特性, android.support.design.widget.TabLayout#updateTabViewLayoutParams(android.widget.LinearLayout.LayoutParams)     */    public static void splitTabLayout(final TabLayout tabLayout) {        if (ViewUtil.isNull(tabLayout) || tabLayout.getTabCount() < 2) {            return;        }        tabLayout.setVisibility(View.INVISIBLE);        if (tabLayout.getTabMode() != TabLayout.MODE_FIXED || tabLayout.getTabGravity() != TabLayout.GRAVITY_FILL) {            return;        }        tabLayout.post(new Runnable() {            @Override            public void run() {                int tabCount = tabLayout.getTabCount();                int measuredWidth = tabLayout.getMeasuredWidth();                if (measuredWidth <= 0) {                    tabLayout.setVisibility(View.VISIBLE);                    return;                }                int marginOffset = measuredWidth / tabCount / 4;                ViewGroup.LayoutParams layoutParams = tabLayout.getLayoutParams();                if (layoutParams instanceof ViewGroup.MarginLayoutParams) {                    ViewGroup.MarginLayoutParams marginLayoutParams = (ViewGroup.MarginLayoutParams) layoutParams;                    marginLayoutParams.leftMargin = marginOffset;                    marginLayoutParams.rightMargin = marginOffset;                    tabLayout.setLayoutParams(layoutParams);                    //Log.debug(TAG, "splitTabLayout: " + marginOffset);                }                tabLayout.setVisibility(View.VISIBLE);            }        });    }
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