android - tablayout的文字颜色在代码中设置选中项时不改变

Question

我正在尝试让 tabLayout 更改它选择的选项卡。

viewPager = (ViewPager) findViewById(R.id.configuration_sheet_pager);
    tabLayout = (TabLayout) findViewById(R.id.configuration_sheet_tabs);
    view.setSelectedTabIndicatorColor(selectedColor);
    view.setTabTextColors(normallColor, selectedColor);
    viewPager.setAdapter(adapter);
    tabLayout.setupWithViewPager(viewPager);

选择标签:

//Does not work; indicator moves but text color is not affected
viewPager.setCurrentItem(change.value, change.animated);
//works as expected
tabLayout.setScrollPosition(change.value,0f,true);
viewPager.setCurrentItem(change.value);

我正在使用 Android 设计支持库 23.1.1。我发现错误了吗？

Answer 1

如果您希望在选择时更改 TabLayout 颜色，您的 tabLayout xml 应该是这样的:

  <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/color_primary"
        app:tabGravity="fill"
        app:tabIndicatorColor="#f32"
        app:tabIndicatorHeight="4dp"
        app:tabMode="fixed"/>

然后打电话

tabLayout.setupWithViewPager(viewPager);

或执行以下操作:

pager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                tabLayout.getTabAt(position).select();
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });