【发布时间】:2018-06-23 17:34:57
【问题描述】:
actvity_main.xml
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:background="#ef9f9f"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill"
app:tabMode="fixed" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
// 主活动:
public class MainActivity extends AppCompatActivity {
private TabLayout tabLayout;
public ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
View headerView = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(R.layout.custom_tab, null, false);
final LinearLayout linearLayoutOne = (LinearLayout) headerView.findViewById(R.id.ll);
final LinearLayout linearLayout2 = (LinearLayout) headerView.findViewById(R.id.ll2);
final TextView text1 = (TextView) headerView.findViewById(R.id.tvtab1);
final TextView text2 = (TextView) headerView.findViewById(R.id.tvtab2);
tabLayout.getTabAt(0).setCustomView(linearLayoutOne);
tabLayout.getTabAt(1).setCustomView(linearLayout2);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
if (tab.getText().equals("ONE")) {
text1.setVisibility(View.VISIBLE);
} else {
text2.setVisibility(View.VISIBLE);
}
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
if (tab.getText().equals("ONE")) {
text1.setVisibility(View.GONE);
} else {
text2.setVisibility(View.GONE);
}
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new OneFragment(), "ONE");
adapter.addFragment(new TwoFragment(), "TWO");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}
这是我的代码,我想设置自定义选项卡,就像我选择第一个选项卡时一样然后第一个标签指示器或重量应该减少,第二个标签文本和图像应该可见:
我当前的屏幕:
在这个你可以看到标签一被选中图像和文本是可见的标签第二个没有被取消选择所以唯一的图像是可见的没有文字:
但我的预期标签是这样的:
当我们选择标签时看看这个,然后标签的指示器和宽度增加,标签 2 减少请建议我如何实现这个。thanx
【问题讨论】:
-
任何人请建议我的问题如何解决
-
你可以用膨胀的cutome布局来做到这一点,你不需要设置可见性。
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ii 尝试过但无法做到@farhana 我在过去 3 天被困在这个问题上,所以我发布了问题
标签: android android-layout android-tablayout