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我正在開發Android版應用。我有一種稱爲鈴聲的方法,在滿足某些條件時調用。我想創建一個低沉的聲音並創建一個對話框來消除聲音。 我的代碼:沒有顯示Android對話框
public void ringtone() {
AudioManager manager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
manager.setStreamVolume(AudioManager.STREAM_RING, 10, AudioManager.FLAG_SHOW_UI);
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
final Ringtone r= RingtoneManager.getRingtone(getApplicationContext(), notification);
AlertDialog alertDialog = new AlertDialog.Builder(getApplicationContext()).create();
alertDialog.setTitle("We Detected You Were Asleep");
alertDialog.setMessage("WAKE UP!");
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "I am Awake", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
r.stop();
}
});
r.play();
alertDialog.show();
}
當我運行我的應用程序鈴聲音量的變化,但鈴聲不玩了。但是,當我註釋掉對話框構建器時,鈴聲就響了。所以我的結論是,對話框構建器內部有些問題不允許代碼繼續。