最全Tablayout详解https://blog.csdn.net/yechaoa/article/details/122270969
-------------------布局文件-----------------
<android.support.design.widget.TabLayout
android:layout_marginLeft="17dp"
android:layout_marginRight="16.8dp"
android:layout_width="match_parent"
android:layout_height="40dp"
app:tabGravity="fill"
app:tabIndicatorColor="@color/button_bule"
app:tabMode="scrollable"
app:tabSelectedTextColor="#333333"
app:tabTextAppearance="@style/TabLayoutTextSize"
app:tabTextColor="#2A2A2A"
android:id="@+id/mytab"
></android.support.design.widget.TabLayout>
<!--设置Tablayout字体大小-->
<style name="TabLayoutTextSize">
<item name="android:textSize">16sp</item>
</style>
<!--设置Tablayout字体加粗-->
<style name="TabLayoutTextStyle">
<item name="android:textStyle">bold</item>
</style>
-------------------代码展示-------------------
myTab = (TabLayout) view.findViewById(R.id.mytab);
//默认字体大小粗细
TextView title = (TextView)(((LinearLayout) ((LinearLayout) myTab.getChildAt(0)).getChildAt(0)).getChildAt(1));
title.setTextSize(18);
title.setTextAppearance(getActivity(), R.style.TabLayoutTextStyle);
myTab.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
vp.setCurrentItem(tab.getPosition());
TextView title = (TextView)(((LinearLayout) ((LinearLayout) myTab.getChildAt(0)).getChildAt(tab.getPosition())).getChildAt(1));
title.setTextSize(18);
title.setTextAppearance(getActivity(), R.style.TabLayoutTextStyle);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
vp.setCurrentItem(tab.getPosition());
TextView title = (TextView)(((LinearLayout) ((LinearLayout) myTab.getChildAt(0)).getChildAt(tab.getPosition())).getChildAt(1));
title.setTextSize(16);
title.setTextAppearance(getActivity(),Typeface.NORMAL);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
注意:
调用setOnTabSelectedListener点击菜单时没有切换fragment,不监听则正常。查看源码发现OnTabSelectedListener中的onTabSelected方法有个默认实现:
@Override
public void onTabSelected(TabLayout.Tab tab) {
vp.setCurrentItem(tab.getPosition());
}
所以自己监听OnTabSelectedListener事件时需要在onTabSelected方法中调用ViewPager的setCurrentItem方法。