Question

该应用程序有一个Activity（MainActiviy.java）+片段A，B，C，D等.... Sun在Activity +应用程序中的片段A，想要更改片段B.但是shift片段在片段A中。到目前为止，我们总是直接在Activity按钮中使用并且一切正常。但片段A和B之间的交换在片段A中有直接按钮，不知道如何。特别是使用bundle从A发送到B的putString。

代码按钮片段A

{

        @Override
        public void onItemClick(AdapterView<?> parent, final View view,
                                int position, long id) {
            // getting values from selected ListItem

            final String description = ((TextView) view.findViewById(R.id.mobile)).getText().toString();

            final String id_stream = ((TextView) view.findViewById(R.id.id_streaming)).getText().toString();

            // Starting single contact activity

            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppCompatAlertDialogStyle);
            builder.setTitle("Select");
            // builder.setMessage("Lorem ipsum dolor ....");
            builder.setItems(new CharSequence[]
                            {getString(R.string.play_video), getString(R.string.remove_video)},
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            // The 'which' argument contains the index position
                            // of the selected item
                            switch (which) {
                                case 0:

                                    TorrentPlayerFragmentRemote fragment6 = new TorrentPlayerFragmentRemote();


                                    Bundle bundle = new Bundle();
                                    bundle.putString("url", description);
                                    fragment6.setArguments(bundle);




                                    fragment6.onDestroyView();
                                    FragmentTransaction fragmentTransaction6 = getActivity().getSupportFragmentManager().beginTransaction();
                                    fragmentTransaction6.addToBackStack(null);
                                    getFragmentManager().popBackStack();
                                    fragmentTransaction6.remove(fragment6);
                                    fragmentTransaction6.replace(R.id.frame,fragment6);
                                    fragmentTransaction6.commit();

                                    break;
                                case 1:
                                    // Snack Bar
                                    Snackbar bar = Snackbar.make(view, R.string.confirm_delete_playlist, Snackbar.LENGTH_LONG)
                                            .setAction(R.string.yes, new View.OnClickListener() {
                                                @Override
                                                public void onClick(View v) {

                                                    // ---Control remote api---
                                                    new Thread() {

                                                        public void run() {

                                                            try {
                                                                HttpURLConnection.setFollowRedirects(false);
                                                                // note : you may also need
                                                                //HttpURLConnection.setInstanceFollowRedirects(false)

                                                                HttpURLConnection con =  (HttpURLConnection) new URL("http://dddd.ddd/remote/1.php?id="+id_stream).openConnection();
                                                                con.setRequestMethod("HEAD");
                                                                if(con.getResponseCode() == HttpURLConnection.HTTP_OK) {

                                                                    //--refresh fragment
                                                                    FragmentTransaction ft = getFragmentManager().beginTransaction();
                                                                    ft.detach(playlist_torrent.this).attach(playlist_torrent.this).commit();
                                                                    //Fin refresh fragment

                                                                    // startActivity(getIntent());
                                                                    // finish();

                                             /*       final Handler handler = new Handler();
                                                    Runnable refresh = new Runnable() {
                                                        @Override
                                                        public void run() {
                                                            new onPreExecute().execute();
                                                            handler.postDelayed(this, 60 * 1000);
                                                        }
                                                    };
                                                    handler.postDelayed(refresh, 60 * 1000);     */
                                                                }
                                                                else{

                                                                }
                                                            }
                                                            catch (Exception e) {
                                                                e.printStackTrace();
                                                            }
                                                        }
                                                    }.start();
                                                    // ----fin Control remote api----
                                                }
                                            });

                                    bar.show();


                                    break;
                            }
                        }
                    });
            builder.create().show();

        }
    });

＆＃34;框架＆＃34;在活动中。

我认为我们应该更改它以接收MainActivity.java以进行更改。

Answer 1

如果我理解您正在尝试正确执行的操作，则可以将您的活动传递给Fragment A的构造函数并将其保存。然后在您的活动上创建方法以使用以下内容切换片段：

2.2.1 :125 > remap 'john smith'
=> "wbua fzvgu"
2.2.1 :126 > remap 'i love you!'
=> "v ybir lbh!"

然后在FragmentA中点击你可以在FragmentA的构造函数中调用你保存的活动，并在活动上调用switchFragment函数。

片段B中片段A的变化。来自变化的按钮是片段A

1 个答案: