android - Android 10 如何设置文件为铃声？

Question

我曾经使用以下代码将原始声音文件保存到外部存储并将其设置为铃声。但是在 android 10 中情况似乎发生了变化。你能帮助我或告诉我一些如何更新我的代码以使用 android 10 的指南吗？

这是将文件保存到外部存储器的代码:

保存文件:

String path = Environment.getExternalStorageDirectory() + "/customsounds";

 public File getFile() {
        boolean exists = (new File(path).exists());
        if (!exists) {
            new File(path).mkdirs();
        }
        File newSoundFile = new File(path, sound.getFileName() + ".mp3");
        Uri mUri = Uri.parse("android.resource://com.example.customsounds/" + sound.getId());
        ContentResolver mCr = getContentResolver();
        AssetFileDescriptor soundFile;
        try {
            soundFile = mCr.openAssetFileDescriptor(mUri, "r");
        } catch (FileNotFoundException e) {
            soundFile = null;
        }

        try {
            byte[] readData = new byte[1024];
            FileInputStream fis = soundFile.createInputStream();
            FileOutputStream fos = new FileOutputStream(newSoundFile);
            int i = fis.read(readData);

            while (i != -1) {
                fos.write(readData, 0, i);
                i = fis.read(readData);
            }

            fos.close();
        } catch (IOException io) {
            Log.e(TAG, "io exception");
            return null;
        }

        return newSoundFile;
    }

设置为铃声:

 public void setAsRingtone() {

    File newSoundFile = getFile();
    ContentValues values = new ContentValues();
    values.put(MediaStore.MediaColumns.DATA, newSoundFile.getAbsolutePath());
    values.put(MediaStore.MediaColumns.TITLE, sound.getTitle());
    values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");
    values.put(MediaStore.MediaColumns.SIZE, newSoundFile.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, false);

    Uri uri = MediaStore.Audio.Media.getContentUriForPath(newSoundFile.getAbsolutePath());
    getContentResolver().delete(uri,
            MediaStore.MediaColumns.DATA + "=?", new String[]{newSoundFile.getAbsolutePath()});
    Uri newUri = getContentResolver().insert(uri, values);

    RingtoneUtils.setRingtone(this, newUri, type);
}

这是 RingtoneUtils:

import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Build;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;


public class RingtoneUtils {

    private static final String LOG_TAG = "RingtoneUtils";

    public static boolean setRingtone(@NonNull Context context, @NonNull Uri ringtoneUri, int type) {
        Log.v(LOG_TAG, "Setting Ringtone to: " + ringtoneUri);

        if (!hasMarshmallow()) {
            Log.v(LOG_TAG, "On a Lollipop or below device, so go ahead and change device ringtone");
            setActualRingtone(context, ringtoneUri, type);
            return true;
        } else if (hasMarshmallow() && canEditSystemSettings(context)) {
            Log.v(LOG_TAG, "On a marshmallow or above device but app has the permission to edit system settings");
            setActualRingtone(context, ringtoneUri, type);
            return true;
        } else if (hasMarshmallow() && !canEditSystemSettings(context)) {
            Log.d(LOG_TAG, "On android Marshmallow and above but app does not have permission to" +
                    " edit system settings. Opening the manage write settings activity...");
            startManageWriteSettingsActivity(context);
            Toast.makeText(context, "Please allow app to edit settings so your ringtone/notification can be updated", Toast.LENGTH_LONG).show();
            return false;
        }

        return false;
    }

    private static void setActualRingtone(@NonNull Context context, @NonNull Uri ringtoneUri, int type) {
        RingtoneManager.setActualDefaultRingtoneUri(context, type, ringtoneUri);
        String message="";
        if(type == RingtoneManager.TYPE_RINGTONE) {
            message = context.getString(R.string.ringtone_set_success);
        } else if(type == RingtoneManager.TYPE_NOTIFICATION) {
            message = context.getString(R.string.notification_set_success);
        }
        if ((RingtoneManager.getActualDefaultRingtoneUri(context, type)).equals(ringtoneUri)) {
            Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(context, context.getString(R.string.operation_failed), Toast.LENGTH_SHORT).show();
        }
    }

    @RequiresApi(api = Build.VERSION_CODES.M)
    private static void startManageWriteSettingsActivity(@NonNull Context context) {
        Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS);
        // Passing in the app package here allows the settings app to open the exact app
        intent.setData(Uri.parse("package:" + context.getApplicationContext().getPackageName()));
        // Optional. If you pass in a service context without setting this flag, you will get an exception
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(intent);
    }

    private static boolean hasMarshmallow() {
        // returns true if the device is Android Marshmallow or above, false otherwise
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
    }

    @RequiresApi(api = Build.VERSION_CODES.M)
    private static boolean canEditSystemSettings(@NonNull Context context) {
        // returns true if the app can edit system settings, false otherwise
        return Settings.System.canWrite(context.getApplicationContext());
    }

}

Android 10 之前的异常:(@greywolf82)

java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.lastIndexOf(int)' on a null object reference
        at android.os.Parcel.readException(Parcel.java:1957)
        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135)
        at android.content.ContentProviderProxy.insert(ContentProviderNative.java:476)
        at android.content.ContentResolver.insert(ContentResolver.java:154

Answer 1

此方法几乎适用于所有 api。

 private boolean SetAsRingtoneOrNotification(File k, int type) {


        ContentValues values = new ContentValues();

        values.put(MediaStore.MediaColumns.TITLE, k.getName());
        values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");
        if (RingtoneManager.TYPE_RINGTONE == type) {
            values.put(MediaStore.Audio.Media.IS_RINGTONE, true);
        } else if (RingtoneManager.TYPE_NOTIFICATION == type) {
            values.put(MediaStore.Audio.Media.IS_NOTIFICATION, true);
        }


        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            Uri newUri = this.getContentResolver()
                    .insert(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, values);
            try (OutputStream os = getContentResolver().openOutputStream(newUri)) {

                int size = (int) k.length();
                byte[] bytes = new byte[size];
                try {
                    BufferedInputStream buf = new BufferedInputStream(new FileInputStream(k));
                    buf.read(bytes, 0, bytes.length);
                    buf.close();

                    os.write(bytes);
                    os.close();
                    os.flush();
                } catch (IOException e) {
                    return false;
                }
            } catch (Exception ignored) {
                return false;
            }
            RingtoneManager.setActualDefaultRingtoneUri(Emotes.this, type,
                    newUri);

            return true;
        } else {
            values.put(MediaStore.MediaColumns.DATA, k.getAbsolutePath());

            Uri uri = MediaStore.Audio.Media.getContentUriForPath(k
                    .getAbsolutePath());

            getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + k.getAbsolutePath() + "\"", null);


            Uri newUri = Emotes.this.getContentResolver().insert(uri, values);
            RingtoneManager.setActualDefaultRingtoneUri(Emotes.this, type,
                    newUri);

            this.getContentResolver()
                    .insert(MediaStore.Audio.Media.getContentUriForPath(k
                            .getAbsolutePath()), values);

            return true;
        }



    }