如何从一个片段中制作cardview onclick onclick开放视频而不制作多个片段

Question

我想使用具有 cardView 的 fragment 进行页面。假设我有4个卡片视图。我希望可以单击卡片视图，并且单击时，它们将使用 videoview 打开一个新片段。我只能制作一个片段，可以根据单击哪个cardView播放不同的视频。

意思是，假设我单击CardView1，它将打开一个带有Video1的片段，然后单击CardView 2，它将从相同的片段开放，但使用Video2打开。是否只能使用一个片段具有多个视频评论？

如果可能，我该怎么做？有人请帮忙。

这是我的代码 fragment_exercise.xml（带卡视图的片段）

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:fillViewport="true"
    tools:context=".ExerciseFragment">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="5dp"
        android:orientation="vertical"
        android:background="#FFF8DD">

        <ImageView
            android:id="@+id/logo2"
            android:layout_width="149dp"
            android:layout_height="48dp"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="30dp"
            android:layout_marginRight="50dp"
            android:src="@drawable/logobg" />

        <androidx.cardview.widget.CardView
            android:id="@+id/c1"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="100dp"
            android:layout_marginLeft="50dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient16"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Running"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/running" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c2"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="100dp"
            android:layout_marginLeft="220dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient3"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Walking"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/walking" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c3"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="250dp"
            android:layout_marginLeft="50dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient22"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Aerobics"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/aerobatic" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c4"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="250dp"
            android:layout_marginLeft="220dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient13"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Yoga"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/yoga2" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c5"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="400dp"
            android:layout_marginLeft="50dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient29"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Boxing"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/boxing" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c6"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="400dp"
            android:layout_marginLeft="220dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient10"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Cycling"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/biking" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c7"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="550dp"
            android:layout_marginLeft="50dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient24"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Dancing"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/dance" />

        </androidx.cardview.widget.CardView>

        <androidx.cardview.widget.CardView
            android:id="@+id/c8"
            android:layout_width="130dp"
            android:layout_height="130dp"
            android:layout_marginTop="550dp"
            android:layout_marginLeft="220dp"
            app:cardCornerRadius="26dp"
            app:cardElevation="10dp">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:background="@drawable/gradient30"
                android:gravity="center"
                android:orientation="vertical" >

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginLeft="4dp"
                    android:layout_marginTop="80dp"
                    android:fontFamily="@font/poppins"
                    android:text="Swimming"
                    android:textAlignment="center"
                    android:textColor="@color/white"
                    android:textSize="18dp"
                    android:textStyle="bold" />
            </RelativeLayout>

            <ImageView
                android:layout_width="102dp"
                android:layout_height="88dp"
                android:layout_marginTop="10dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/m2" />

        </androidx.cardview.widget.CardView>

    </RelativeLayout>


</ScrollView>

coramefragment.java

public class ExerciseFragment extends Fragment implements View.OnClickListener{

    View v;
    CardView cv1, cv2, cv3, cv4, cv5, cv6, cv7, cv8;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {


        View v = inflater.inflate(R.layout.fragment_exercise, container, false);

        cv1 = (CardView) v.findViewById(R.id.c1);
        cv1.setOnClickListener(this);
        cv2 = (CardView) v.findViewById(R.id.c2);
        cv2.setOnClickListener(this);
        cv3 = (CardView) v.findViewById(R.id.c3);
        cv3.setOnClickListener(this);
        cv4 = (CardView) v.findViewById(R.id.c4);
        cv4.setOnClickListener(this);
        cv5 = (CardView) v.findViewById(R.id.c5);
        cv5.setOnClickListener(this);
        cv6 = (CardView) v.findViewById(R.id.c6);
        cv6.setOnClickListener(this);
        cv7 = (CardView) v.findViewById(R.id.c7);
        cv7.setOnClickListener(this);
        cv8 = (CardView) v.findViewById(R.id.c8);
        cv8.setOnClickListener(this);


        // Inflate the layout for this fragment
        return v;
    }

    @Override
    public void onClick(View v) {
        Fragment fragment1, fragment2, fragment3, fragment4, fragment5, fragment6, fragment7, fragment8;
        switch (v.getId()) {
            case R.id.c1:
                fragment1 = new VideoFragment();
                FragmentTransaction transaction1 = getParentFragmentManager().beginTransaction();
                transaction1.replace(R.id.container,fragment1);
                transaction1.commit();
                break;
            case R.id.c2:
                fragment2 = new VideoFragment();
                FragmentTransaction transaction2 = getParentFragmentManager().beginTransaction();
                transaction2.replace(R.id.container,fragment2);
                transaction2.commit();
                break;
            case R.id.c3:
                fragment3 = new VideoFragment();
                FragmentTransaction transaction3 = getParentFragmentManager().beginTransaction();
                transaction3.replace(R.id.container,fragment3);
                transaction3.commit();
                break;
            case R.id.c4:
                fragment4 = new VideoFragment();
                FragmentTransaction transaction4 = getParentFragmentManager().beginTransaction();
                transaction4.replace(R.id.container,fragment4);
                transaction4.commit();
                break;
            case R.id.c5:
                fragment5 = new VideoFragment();
                FragmentTransaction transaction5 = getParentFragmentManager().beginTransaction();
                transaction5.replace(R.id.container,fragment5);
                transaction5.commit();
                break;
            case R.id.c6:
                fragment6 = new VideoFragment();
                FragmentTransaction transaction6 = getParentFragmentManager().beginTransaction();
                transaction6.replace(R.id.container,fragment6);
                transaction6.commit();
                break;
            case R.id.c7:
                fragment7 = new VideoFragment();
                FragmentTransaction transaction7 = getParentFragmentManager().beginTransaction();
                transaction7.replace(R.id.container,fragment7);
                transaction7.commit();
                break;
            case R.id.c8:
                fragment8 = new VideoFragment();
                FragmentTransaction transaction8 = getParentFragmentManager().beginTransaction();
                transaction8.replace(R.id.container,fragment8);
                transaction8.commit();
                break;
        }
    }
}

fragment_video.xml（带视频的片段）

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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"
    tools:context=".VideoFragment">

    <VideoView
        android:id="@+id/videoView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true" />

</FrameLayout>

videofragment.java 这就是我现在拥有的

public class VideoFragment extends Fragment {

     View v;
     VideoView view;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        view = (VideoView) v.findViewById(R.id.videoView1);

        MediaController mediaController = new MediaController(this);
        mediaController.setAnchorView(view);

        Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+"/raw/boxing.mp4");
        view.setMediaController(mediaController);
        view.setVideoURI(uri);
        view.requestFocus();
        view.start();

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View v = inflater.inflate(R.layout.fragment_exercise, container, false);

        return v;
    }
}

该代码在行中有错误：

MediaController mediaController = new MediaController(this);

请提供帮助，我如何制作一个片段，该片段将根据点击的cardviews播放不同的视频而无需制作多个片段。是否有可能，如果是，请帮助我编写代码。太感谢了。