Java 如何在片段内部使用布局?
我想在片段内部使用TabLayout。 这是我的fragment_main.xml:Java 如何在片段内部使用布局?,java,android,Java,Android,我想在片段内部使用TabLayout。 这是我的fragment_main.xml: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.ek.karhabtyapplication.ParkingFragment"
android:orientation="horizontal">
<android.support.design.widget.TabLayout
android:id="@+id/simpleTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabBackground="@android:color/darker_gray" />
<FrameLayout
android:id="@+id/simpleFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent" />
问题是,当我在第一个选项卡中单击时,消息正在闪烁,但片段没有改变。
任何人都有主意。试试这段代码,在
LinearLayout中将android:orientation=“horizontal”
设置为android:orientation=“vertical”
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
switch (tab.getPosition()) {
case 0:
Fragment fragmentOne = new ParkingMapFragment();
Toast.makeText(getActivity(), "fragm 1 ", Toast.LENGTH_SHORT).show();
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.add(R.id.simpleFrameLayout, fragment);
transaction.commit();
break;
case 1:
Fragment fragmentTwo = new ParkingHistoricFragment();
Toast.makeText(getActivity(), "fragm 2 ", Toast.LENGTH_SHORT).show();
FragmentTransaction transactionOne = getChildFragmentManager().beginTransaction();
transactionOne .add(R.id.simpleFrameLayout, fragment);
transactionOne .commit();
break;
}
}
});
片段会更改,但您无法看到它,因为simpleFrameLayout当前不在视图中。您的TableLayout正在填充整个屏幕宽度,并且您的FrameLayout位于TableLayout的右侧 您可以在选项卡布局下方添加一个视图寻呼机,然后您可以轻松地交换和使用它。创建一个视图寻呼机适配器并在该适配器中添加片段。非常感谢。我将LinearLayout的方向更改为垂直,它可以工作;)感谢您的帮助:)private void setTabsViewPagerView(){setupViewPager(viewPager);TableLayout.setupWithViewPager(viewPager);SetupTabions();}private void setupViewPager(viewPager viewPager){ViewPagerAdapter=new ViewPagerAdapter(getChildFragmentManager());adapter.addFragment(新建ABCFrament(),getResources().getString(“abc”);adapter.addFragment(新建DefFragment(),getResources().getString(“测试”);viewPager.setAdapter(适配器);}
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
switch (tab.getPosition()) {
case 0:
Fragment fragmentOne = new ParkingMapFragment();
Toast.makeText(getActivity(), "fragm 1 ", Toast.LENGTH_SHORT).show();
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.add(R.id.simpleFrameLayout, fragment);
transaction.commit();
break;
case 1:
Fragment fragmentTwo = new ParkingHistoricFragment();
Toast.makeText(getActivity(), "fragm 2 ", Toast.LENGTH_SHORT).show();
FragmentTransaction transactionOne = getChildFragmentManager().beginTransaction();
transactionOne .add(R.id.simpleFrameLayout, fragment);
transactionOne .commit();
break;
}
}
});