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android 动态添加 fragment

作者:互联网

按钮点击触发:

    public void execute(View view) throws Exception {
FragmentManager fm = getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();

    ft.add(R.id.fragmentContainer, new segment(), "HELLO");//R.id.fragmentContainer:占位
        ft.commit();
}
public class segment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment,null);//R.layout.fragment:要模块的id
} }
<!--R.layout.fragment文件-->
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout 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:orientation="vertical" > <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/app_name" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" /> </androidx.constraintlayout.widget.ConstraintLayout>

<!--要显示fragment的文件-->
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="execute"
        android:text="execute"
        />
<!-- fragment的显示位置 -->
    <FrameLayout
        android:id="@+id/fragmentContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

 

 


标签:ft,fragment,inflater,public,添加,android,segment,id
来源: https://www.cnblogs.com/laremehpe/p/16630491.html