Android 获取本地闹钟铃声

存储铃声的model（闹钟为例）

public class AlarmInfo {private long id;private String title;private String data;public long getId() {return id;}public void setId(long id) {this.id = id;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getData() {return data;}public void setData(String data) {this.data = data;}
}

通过ContentResolver查询数据存储到model（结合更改系统闹钟铃声为例）

private List<AlarmInfo> alarmInfos = new ArrayList<>();private static final Uri URI = MediaStore.Audio.Media.INTERNAL_CONTENT_URI;
private static final String[] PROJECTION = {MediaStore.Audio.Media._ID,MediaStore.Audio.Media.DATA,MediaStore.Audio.Media.TITLE
};
// is_notification | is_ringtone | is_music | is_alarm //根据需要可以获取闹铃、通知铃声等
private static final String SELECTION = "is_alarm != ?";
private static final String[] SELECTION_ARGS = { "0" };
private static final String SORT_ORDER = "_id asc";//点击alarmLayout先获取铃声数据，弹出单选对话框选择铃声后修改铃声
findViewById(R.id.alarmLayout).setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View view){scanMediaFile();showSetAlarmDialog();}
});private void scanMediaFile() {Cursor cursor = getContentResolver().query(URI, PROJECTION, SELECTION, SELECTION_ARGS, SORT_ORDER);if (cursor == null) return;while (cursor.moveToNext()) {AlarmInfo info = new AlarmInfo();long id = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media._ID));String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));info.setId(id);if (!TextUtils.isEmpty(data)) info.setData(data);if (!TextUtils.isEmpty(title)) info.setTitle(title);alarmInfos.add(info);}cursor.close();
}private String selectAlarm;
private MediaPlayer mMediaPlayer;private void showSetAlarmDialog() {if (alarmInfos.size() > 0) {final String[] alarms = new String[alarmInfos.size()];for (int i = 0; i < alarmInfos.size(); i++) {alarms[i] = alarmInfos.get(i).getTitle();}int checkItem = -1;new AlertDialog.Builder(this, R.style.CustomAlertDialogStyle).setTitle("请选择要设置的铃声").setSingleChoiceItems(alarms, checkItem, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {stopBroadcastAlarm();selectAlarm = alarmInfos.get(which).getData();startBroadcastAlarm(Uri.parse(selectAlarm));}}).setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.dismiss();stopBroadcastAlarm();RingtoneManager.setActualDefaultRingtoneUri(mContext, RingtoneManager.TYPE_ALARM,Uri.parse(selectAlarm));showToast("设置成功!");}}).setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.dismiss();stopBroadcastAlarm();}}).show();}
}private void startBroadcastAlarm(Uri uri) {try {mMediaPlayer = new MediaPlayer();mMediaPlayer.setDataSource(this, uri);mMediaPlayer.prepare();mMediaPlayer.start();} catch (Exception e) {e.printStackTrace();}
}private void stopBroadcastAlarm() {if (mMediaPlayer != null && mMediaPlayer.isPlaying()) {mMediaPlayer.stop();}
}

设置权限

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

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