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2-VVI-材料设计之TabLayout下标签

日期：2018-08-28点击：434收藏

[1].将下面线去掉，自定义条目样式，就可以实现下图效果
[2].以前实现这种效果一般用按钮组，有点麻烦
[3].Fragment同上篇

效果图

二、代码实现：

1.Activity的布局：a01_bottom.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <android.support.v4.view.ViewPager android:id="@+id/vp_content" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"> </android.support.v4.view.ViewPager> <android.support.design.widget.TabLayout android:id="@+id/tl_tab" android:layout_width="match_parent" android:layout_height="@dimen/dp_72" android:background="@color/white"> </android.support.design.widget.TabLayout> </LinearLayout>

2.条目的布局：item_01_bottom.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" android:gravity="center" android:orientation="vertical"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/selector_menu_home"/> <TextView android:id="@+id/tv_menu_item" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Item" android:textColor="@color/selector_blue"/> </LinearLayout>

3.Activity

public class V01_BottomActivity extends AppCompatActivity { private TabLayout mTabTl; private ViewPager mContentVp; private List<String> tabIndicators; private List<Fragment> tabFragments; private FragmentPagerAdapter contentAdapter; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.a01_bottom); mTabTl = findViewById(R.id.tl_tab); mContentVp = findViewById(R.id.vp_content); initContent(); initTab(); } private void initTab() { mTabTl.setTabMode(TabLayout.MODE_FIXED); //去除下面线 mTabTl.setSelectedTabIndicatorHeight(0); ViewCompat.setElevation(mTabTl, 10); mTabTl.setupWithViewPager(mContentVp); for (int i = 0; i < tabIndicators.size(); i++) { //获取Tab对应条目 TabLayout.Tab itemTab = mTabTl.getTabAt(i); if (itemTab != null) { //自定义布局加到对应条目上 itemTab.setCustomView(R.layout.item_tab_layout_custom); TextView itemTv = itemTab.getCustomView().findViewById(R.id.tv_menu_item); itemTv.setText(tabIndicators.get(i)); } } } private void initContent() { tabIndicators = DataUtils.getRandomName(5, true); tabFragments = new ArrayList<>(); for (String s : tabIndicators) { tabFragments.add(V01_ContentV4Fragment.newInstance(s)); } //创建适配器对象 contentAdapter = new FragmentPagerAdapter(getSupportFragmentManager()) { @Override public Fragment getItem(int position) { return tabFragments.get(position); } @Override public int getCount() { return tabIndicators.size(); } @Override public CharSequence getPageTitle(int position) { return tabIndicators.get(position); } }; mContentVp.setAdapter(contentAdapter); } }