Man*_*mar 1 android android-layout android-tablayout
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>
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// 主要活动 :
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);
}
}
}
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这是我的代码,我想设置自定义选项卡,就像当我选择第一个选项卡然后选择第一个选项卡的指示器和选项卡宽度或重量时,我应该增加第二个选项卡,减少第二个选项卡仅显示图像而不是相同的文本,如果我们选择第二个选项卡然后选择第一个选项卡指示器或权重应减少,第二个选项卡文本和图像应在以下位置可见:
我当前的屏幕:
在此您可以看到选项卡第一个被选中,图像和文本可见,选项卡第二个未被选中,因此唯一的图像可见,没有文本:
但我的预期选项卡是这样的:
当我们选择选项卡时,请查看此内容,然后选项卡的指示器和宽度增加,选项卡 2 减少,请建议我如何实现此目标。thanx
小智 5
您可以轻松地通过选项卡布局实现自定义选项卡,试试这个:
public void setupTabView(){
for (int i = 0; i < tabLayout.getTabCount(); i++) {
tabLayout.getTabAt(i).setCustomView(R.layout.custom_tab);
TextView tab_name = (TextView) tabLayout.getTabAt(i).getCustomView().findViewById(R.id.txt_tab_name);
tab_name.setText("" + tabNames[i]);
}
}
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并创建一个名为 custom_tab 的可绘制文件:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/txt_tab_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="14sp" />
</RelativeLayout>
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