在我的应用程序（材料设计）中，我想显示（比如说）10 个标签。在这些选项卡中，选项卡条应包含例如 4 个。现在选项卡条显示所有选项卡标题，每个选项卡有 2 个字母。如何创建滑动标签条？所以我可以通过标签条滚动到右边的标签？我知道有一个定制的标签条，我想尽可能多地使用标准设施。
1 - 设置标签页：
private void setupTabPager() {
viewPager = (ViewPager) findViewById(R.id.pager);
final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
// UserFeedback.show( "Tab selected: " + tab.getText());
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
2 - 设置选项卡布局：
private void setupTablayout() {
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
if (tabLayout == null) {
return;
}
// tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
tabLayout.setTabGravity(TabLayout.MODE_SCROLLABLE);
tabLayout.addTab(tabLayout.newTab().setText("Folders"));
tabLayout.addTab(tabLayout.newTab().setText("Items"));
3 - PageAdapter 扩展 FragmentStatePagerAdapter：
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;
public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case MainActivity.FRAGMENT_GROUPS_AND_ITEMS:
return new FragmentGroupsAndItems();
case MainActivity.FRAGMENT_FOLDERS:
return new FragmentFolders();
.... }