如何通過Android應用程序設置鈴聲？

我想通過我的android應用程序設置鈴聲。我試着用這個代碼如何通過Android應用程序設置鈴聲？

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    String filepath ="/sdcard/sound.mp3"; 
    File ringtoneFile = new File(filepath); 

    ContentValues content = new ContentValues(); 
    content.put(MediaStore.MediaColumns.DATA,ringtoneFile.getAbsolutePath()); 
    System.out.println(ringtoneFile.getAbsolutePath()+"+++++++++++++++++++++++++"); 
    content.put(MediaStore.MediaColumns.TITLE, "chinnu"); 
    content.put(MediaStore.MediaColumns.SIZE, 215454); 
    content.put(MediaStore.MediaColumns.MIME_TYPE, "sound.mp3"); 
    content.put(MediaStore.Audio.Media.ARTIST, "Madonna"); 
    content.put(MediaStore.Audio.Media.DURATION, 230); 
    content.put(MediaStore.Audio.Media.IS_RINGTONE, true); 
    content.put(MediaStore.Audio.Media.IS_NOTIFICATION, false); 
    content.put(MediaStore.Audio.Media.IS_ALARM, false); 
    content.put(MediaStore.Audio.Media.IS_MUSIC, false); 


    //Insert it into the database 
    String TAG=""; 
    Log.i(TAG, "the absolute path of the file is :"+ 
    ringtoneFile.getAbsolutePath()); 
    Uri uri = MediaStore.Audio.Media.getContentUriForPath(
    ringtoneFile.getAbsolutePath()); 
    Uri newUri = Context.getContentResolver().insert(uri, content); 
    ringtoneUri = newUri; 
    Log.i(TAG,"the ringtone uri is :"+ringtoneUri); 
    RingtoneManager.setActualDefaultRingtoneUri(context, 
    RingtoneManager.TYPE_RINGTONE,newUri); 


} 
}

但我得到的錯誤：context不能被解析爲一個類型。這是什麼意思？我是一名android開發的初學者。我也設置了write_ external_storage permission。

我還需要做些什麼才能成功運行此應用程序？
在此先感謝

來源

2011-04-11 Sarath

String filepath ="/sdcard/Fast_N_Furious_2009.mp3"; 
    File ringtoneFile = new File(filepath); 

    ContentValues content = new ContentValues(); 
    content.put(MediaStore.MediaColumns.DATA,ringtoneFile.getAbsolutePath()); 
    content.put(MediaStore.MediaColumns.TITLE, "chinnu"); 
    content.put(MediaStore.MediaColumns.SIZE, 215454); 
    content.put(MediaStore.MediaColumns.MIME_TYPE, "audio/*"); 
    content.put(MediaStore.Audio.Media.ARTIST, "Madonna"); 
    content.put(MediaStore.Audio.Media.DURATION, 230); 
    content.put(MediaStore.Audio.Media.IS_RINGTONE, true); 
    content.put(MediaStore.Audio.Media.IS_NOTIFICATION, false); 
    content.put(MediaStore.Audio.Media.IS_ALARM, false); 
    content.put(MediaStore.Audio.Media.IS_MUSIC, false); 


    //Insert it into the database 
    Log.i(TAG, "the absolute path of the file is :"+ 
    ringtoneFile.getAbsolutePath()); 
    Uri uri = MediaStore.Audio.Media.getContentUriForPath(ringtoneFile.getAbsolutePath()); 
    //Uri newUri = context.getContentResolver().insert(uri, content); 
    Uri newUri = getContentResolver().insert(uri, content); 
    String ringtoneUri = newUri.toString(); 

    Log.i(TAG,"the ringtone uri is :"+ringtoneUri); 
    RingtoneManager.setActualDefaultRingtoneUri(getBaseContext(),RingtoneManager.TYPE_RINGTONE,newUri);

來源

2011-07-05 14:33:04

hi Sarath如果r嘗試在您的活動中刪除代碼中的上下文。

更換線

Uri newUri = getContentResolver().insert(uri, content); ringtoneUri = newUri;

來源

2011-04-11 06:38:12 milind

@milind ...謝謝....現在showins中的錯誤，這些3 lines..ringtoneUri = newUri; Log.i（TAG，「the ringtone uri is：」+ ringtoneUri）; RingtoneManager.setActualDefaultRingtoneUri（context， RingtoneManager.TYPE_RINGTONE，newUri）; ...... ringtoneuri未解析爲類型....然後在RingtoneManager.setActualDefaultRingtoneUri（context， RingtoneManager.TYPE_RINGTONE，newUri）;. in這個代碼我們正在使用上下文......如何避免這種情況.....？ – Sarath 2011-04-11 09:16:44

如何通過Android應用程序設置鈴聲？

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