RingtoneManager类型中的方法setActualDefaultRingtoneUri(Context,int,Uri)不适用于参数OnItemClickListener

Question

我正在制作android应用程序，我想当我点击列表视图项目找到点击项目的ID，获取资源并将该文件设置为铃声。但是我得到这个错误 :的方法 setActualDefaultRingtoneUri(Context, int, Uri) 在类型 RingtoneManager 不适用于参数（new AdapterView.OnItemClickListener)

我该如何解决这个问题？

listv.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {

        String selectedName = ((ListView) view.findViewById(R.id.listView1)).getContext()
                .toString();

        AssetManager assetManager = getAssets();

        File file = new File(Environment.getExternalStorageDirectory(),
                "/myRingtonFolder/Audio/");
        if (!file.exists()) {
            file.mkdirs();
        }

        String path = Environment.getExternalStorageDirectory()
                .getAbsolutePath() + "/MyRingtones/Audio/";

        File out = new File(path + "/", selectedName);
        if (!out.exists()) {
            try {
                copyFile(assetManager, "Ringtone.mp3", out);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        ContentValues values = new ContentValues();
        values.put(MediaStore.MediaColumns.DATA, out.getAbsolutePath());
        values.put(MediaStore.MediaColumns.TITLE, "airh");
        values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");
        values.put(MediaStore.MediaColumns.SIZE, out.length());
        values.put(MediaStore.Audio.Media.ARTIST, R.string.app_name);
        values.put(MediaStore.Audio.Media.IS_RINGTONE, true);
        values.put(MediaStore.Audio.Media.IS_NOTIFICATION, true);
        values.put(MediaStore.Audio.Media.IS_ALARM, true);
        values.put(MediaStore.Audio.Media.IS_MUSIC, true);

        Uri uri = MediaStore.Audio.Media.getContentUriForPath(out.getAbsolutePath());
        ContentResolver mCr = getContentResolver();
        Uri newUri = mCr.insert(uri, values);

        try {
            RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_RINGTONE,
                    newUri);
            Settings.System.putString(mCr, Settings.System.RINGTONE,
                    newUri.toString());
        } catch (Throwable t) {
            //TODO Handle exception
        }
        switch (position) {
            case 0:
                if (mp != null) {
                    mp.release();
                    mp = null;
                }

                mp = MediaPlayer.create(Context.this,
                        R.raw.aint);
                mp.start();

                break;
            case 1:
                if (mp != null) {
                    mp.release();
                    mp = null;
                }

                mp = MediaPlayer.create(Context.this,
                        R.raw.airh);
                mp.start();
                break;
        }
    }
});

Answer 1

你在 OnItemClickListener 接口so this 将引用它。

要避免这种情况，只需在此之前放置活动的名称或询问getApplicationContext()以获取上下文

像:

RingtoneManager.setActualDefaultRingtoneUri(
     MainActivity.this, RingtoneManager.TYPE_RINGTONE, newUri);

或

RingtoneManager.setActualDefaultRingtoneUri(
     getApplicationContext(), RingtoneManager.TYPE_RINGTONE, newUri);

做同样的事情 MediaPlayer.create(MainActivity.this, R.raw.aint);