当替换片段视频仍在 android 中播放背景时

Question

感谢您的关注 :D 请帮助我解决这个问题。所以这就是我想做的。我有四个片段，其中一个 activity.I 在第一个片段中播放实时视频，当我用另一个片段替换第一个片段时它正在工作 fine.But，第一个片段的视频仍在后台播放。想要做的是在我的所有片段中播放该视频，但大小不同且彼此不干扰。我怎样才能做到这一点？这是我的代码。

第一个片段的代码

public class FTop2 extends Fragment  {
String Tag = "FTop2";
CallbackManager callbackManager;
ShareDialog shareDialog;
ProgressDialog progressDialog;





public FTop2() {}
protected void facebookSDKInitialize() {

    FacebookSdk.sdkInitialize(getContext());

    callbackManager = CallbackManager.Factory.create();
}
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    facebookSDKInitialize();
    Twitter.initialize(getActivity());

}

private class HttpUrl  extends AsyncTask<Integer, Void, ArrayList<LiveUrl>> {
    @Override
    protected ArrayList<LiveUrl> doInBackground(Integer... i) {
        return  XmlPrepareClient.getTickedId("cid0003","1","1");
    }

    @Override
    protected void onPostExecute(ArrayList<LiveUrl> result) {
        for (int i=0; i<result.size();i++) {
            String txt = result.get(i).url;
            Log.e("play url", Config.B64decodeStr(txt));
        }

        VideoView vid = (VideoView) getView().findViewById(R.id.videoView);

        String vid_url = Config.B64decodeStr(result.get(0).url);
        Uri vid_uri = Uri.parse(vid_url);
        vid.setVideoURI(vid_uri);
        vid.start();
        MediaController vid_control = new MediaController(getContext());
        vid_control.setAnchorView(vid);
        vid.setMediaController(vid_control);

        if (progressDialog.isShowing()) {
            progressDialog.hide();
        }


    }
}

@Override
public View onCreateView(LayoutInflater i, ViewGroup c,Bundle s) {
    Bundle bundle = this.getArguments();
    final int channel= bundle.getInt("channel");
    final String cat= bundle.getString("cat");
    final String img= bundle.getString("img");

    shareDialog = new ShareDialog(this);
    View view = i.inflate(R.layout.f_top2, c, false);

    progressDialog = Config.getProgressDialog(getContext());
    if(Config.isNetworkAvailable(getContext())) {
        if (!progressDialog.isShowing()) progressDialog.show();
        new HttpUrl().execute();
    }else {
        Config.ToastNet(getContext());
    }




    ImageView btnBack = (ImageView) view.findViewById(R.id.btn_dismiss);
    btnBack.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            getFragmentManager().popBackStack();

        }
    });

    ImageView btnDetail = (ImageView) view.findViewById(R.id.btn_detail);
    btnDetail.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
        getFragmentManager().beginTransaction()
                .replace(android.R.id.content, new FTop2_1()).addToBackStack(Tag).commit();

        }
    });

    ImageView btnProgram = (ImageView) view.findViewById(R.id.btn_program);
    btnProgram.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            getFragmentManager().beginTransaction()
                    .replace(android.R.id.content, new FTop2_2()).addToBackStack(Tag).commit();
        }
    });

    ImageView btnComment = (ImageView) view.findViewById(R.id.btn_comment);
    btnComment.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            getFragmentManager().beginTransaction()
                    .replace(android.R.id.content, new FTop2_3()).addToBackStack(Tag).commit();
        }
    });

第二个片段的代码

public class FTop2_1 extends Fragment {
LinearLayout line;
TextView txt;
ArrayList<TV> datas = new ArrayList<>();
ListView list;
ProgressDialog progressDialog;
boolean isTablet;
public FTop2_1() {}
@Override
public void onCreate(Bundle s) {
    super.onCreate(s);
}


private class HttpTask  extends AsyncTask<Integer, Void, ArrayList<TV>> {
    @Override
    protected ArrayList<TV> doInBackground(Integer... params) {
        return PrepareClient.postTV(params[0]);
    }

    @Override
    protected void onPostExecute(ArrayList<TV> result) {
        datas = result;
        Adapter listAdapter1 = new Adapter(getContext(), R.layout.f_top2_1_item, datas);

        ViewGroup.LayoutParams layoutParams = list.getLayoutParams();
        if(!isTablet)
            layoutParams.height = 160*result.size();
        list.setLayoutParams(layoutParams);

        list.setAdapter(listAdapter1);
        if (progressDialog.isShowing()) {
            listAdapter1.notifyDataSetChanged();
            progressDialog.hide();
        }
    }
}

private class HttpUrl  extends AsyncTask<Integer, Void, ArrayList<LiveUrl>> {
    @Override
    protected ArrayList<LiveUrl> doInBackground(Integer... i) {
        return  XmlPrepareClient.getTickedId("cid0003","1","1");
    }

    @Override
    protected void onPostExecute(ArrayList<LiveUrl> result) {
        for (int i=0; i<result.size();i++) {
            String txt = result.get(i).url;
            Log.e("play url", Config.B64decodeStr(txt));
        }

        VideoView vid = (VideoView) getView().findViewById(R.id.videoView);

        String vid_url = Config.B64decodeStr(result.get(0).url);
        Uri vid_uri = Uri.parse(vid_url);
        vid.setVideoURI(vid_uri);
        vid.start();
        MediaController vid_control = new MediaController(getActivity());
        vid_control.setAnchorView(vid);
        vid.setMediaController(vid_control);

        if (progressDialog.isShowing()) {
            progressDialog.hide();
        }


    }
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle s) {
    View view =  inflater.inflate(R.layout.f_top2_1, container, false);
    Button btnBack = (Button) view.findViewById(R.id.back);
    btnBack.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            getFragmentManager().popBackStack();
        }
    });
    isTablet = getResources().getBoolean(R.bool.isTablet);
    list  = (ListView) view.findViewById(R.id.list);
    if(!isTablet)
        list.setEnabled(false);

    progressDialog = Config.getProgressDialog(getContext());

    if(Config.isNetworkAvailable(getContext())) {
        if (!progressDialog.isShowing()) progressDialog.show();
        new HttpTask().execute(1);
        new HttpUrl().execute();
    }else{
        Config.ToastNet(getContext());
    }

    line = (LinearLayout) view.findViewById(R.id.line);
    line.getLayoutParams().height = ViewGroup.LayoutParams.WRAP_CONTENT;
    ViewGroup.LayoutParams params = line.getLayoutParams();
    params.height = 300;
    line.setLayoutParams(params);

    txt = (TextView) view.findViewById(R.id.text_toggle);
    ImageView toggle = (ImageView) view.findViewById(R.id.toggle);
    toggle.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (Integer.parseInt(String.valueOf(line.getHeight())) == 300) {
                line.getLayoutParams().height = ViewGroup.LayoutParams.WRAP_CONTENT;
                ViewGroup.LayoutParams params = line.getLayoutParams();
                params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
                line.setLayoutParams(params);
            } else {

                line.getLayoutParams().height = ViewGroup.LayoutParams.WRAP_CONTENT;
                ViewGroup.LayoutParams params = line.getLayoutParams();
                params.height = 300;
                line.setLayoutParams(params);
            }
        }
    });

    return view;
}

public class Adapter  extends ArrayAdapter<TV> {
    private LayoutInflater inflater;
    private ArrayList<TV> records;

    public Adapter(Context context, int resource, ArrayList<TV> datas) {
        super(context, resource, datas);
        this.records = datas;
        inflater     = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    public int getCount() {
        return records.size();
    }

    public TV getItem(int position) {
        return records.get(position);
    }

    public long getItemId(int position) {
        return position;
    }

    @NonNull
    @Override
    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
        if(convertView == null)
            convertView = inflater.inflate(R.layout.f_top2_1_item, parent, false);
        TV result = records.get(position);

        ((TextView)convertView.findViewById(R.id.desc1)).setText(result.time);
        ((TextView)convertView.findViewById(R.id.desc2)).setText(result.subtitle);
        ImageView img = (ImageView) convertView.findViewById(R.id.img2);
        Picasso.with(getContext())
                .load(result.icon)
                .placeholder(R.drawable.no_image)
                .error(R.drawable.no_image)
                .into(img);
        return convertView;
    }


}
}

Answer 1

@Override public void onDetach() {

if(vid.isPlaying()) {
    vid.stopPlayback();

} }

当替换片段视频仍在 android 中播放背景时

when replace a fragment video is still playing background in android

android

android-fragments

android-videoview

mediacontroller