23、铃声设置

Android系统的铃声

        Android本身提供了一些默认的铃声文件，这些文件都放在“/system/media/audio”目录中。如果是我们自己下载的铃声文件（一般为mp3音频文件），可以放在SD卡的music目录。铃声主要有3种：一般的铃声（如来电铃声）、闹钟铃声和通知铃声。这3种铃声要分别放在如下的目录。

/sdcard/music/ringtones：一般的铃声，如来电铃声。

/sdcard/music/alarms：闹钟铃声。

/sdcard/music/notifications：警告或通知铃声。

调用铃声设置窗口

RingtoneManager.TYPE_RINGTONE：设置来电铃声

RingtoneManager.TYPE_ALARM：设置闹钟铃声

RingtoneManager.TYPE_NOTIFICATION：设置通知铃声

Demo

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:onClick="onClick_Call_Ringtone"
        android:text="设置来电铃声" />

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:onClick="onClick_Alarm_Ringtone"
        android:text="设置闹铃声音" />

    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:onClick="onClick_Notification_Ringtone"
        android:text="设置通知铃声" />

</LinearLayout>

import android.app.Activity;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;

public class Main extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode != RESULT_OK) {
            return;
        }
        Uri uri = data
                .getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);

        if (uri != null) {
            switch (requestCode) {
            case 1: // 来电铃声
                RingtoneManager.setActualDefaultRingtoneUri(this,
                        RingtoneManager.TYPE_RINGTONE, uri);

                break;
            case 2: // 闹钟铃声
                RingtoneManager.setActualDefaultRingtoneUri(this,
                        RingtoneManager.TYPE_ALARM, uri);
                break;
            case 3:
                RingtoneManager.setActualDefaultRingtoneUri(this,
                        RingtoneManager.TYPE_NOTIFICATION, uri);
                break;
            default:
                break;
            }
        }
    }

    public void onClick_Call_Ringtone(View view) {
        Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,
                RingtoneManager.TYPE_RINGTONE);
        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置来电铃声");
        startActivityForResult(intent, 1);
    }

    public void onClick_Alarm_Ringtone(View view) {
        Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,
                RingtoneManager.TYPE_ALARM);
        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置闹钟铃声");
        startActivityForResult(intent, 2);
    }

    public void onClick_Notification_Ringtone(View view) {
        Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);

        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,
                RingtoneManager.TYPE_NOTIFICATION);
        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "设置通知铃声");
        startActivityForResult(intent, 3);
    }

}

<uses-permission android:name="android.permission.WRITE_SETTINGS"/>