android– 将原始资源设置为铃声

概述我已经阅读了这两个帖子link1和这一个link2但代码似乎对我不起作用.这是我的代码：FilenewSoundFile=newFile("/sdcard/mediaingtone","myringtone.oog");UrimUri=Uri.parse("android.resource://com.pack.android.myapp/R.raw.song1");C

我已经阅读了这两个帖子link1和这一个link2但代码似乎对我不起作用.

这是我的代码：

file newSoundfile = new file("/sdcard/media/ringtone", "myringtone.oog");            Uri mUri = Uri.parse("androID.resource://com.pack.androID.myapp/R.raw.song1");            ContentResolver mCr = Main.this.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) {               }               ContentValues values = new ContentValues();               values.put(MediaStore.MediaColumns.DATA, newSoundfile.getabsolutePath());               values.put(MediaStore.MediaColumns.Title, "my ringtone");               values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/oog");               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());               Uri newUri = mCr.insert(uri, values);               try {                   ringtoneManager.setActualDefaultringtoneUri(Main.this, ringtoneManager.TYPE_ringtone, newUri);               } catch (Throwable t) {                  // Log.d(TAG, "catch exception");               }

我正在接近一支部队. Logcat在这里：

06-30 03:13:03.731: E/AndroIDRuntime(4187): FATAL EXCEPTION: main06-30 03:13:03.731: E/AndroIDRuntime(4187): java.lang.NullPointerException06-30 03:13:03.731: E/AndroIDRuntime(4187):     at com.pack.androID.myapp.Main.Music(Main.java:83)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at com.pack.androID.myapp.Main.onClick(Main.java:46)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.vIEw.VIEw.performClick(VIEw.java:2538)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.vIEw.VIEw$PerformClick.run(VIEw.java:9152)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.os.Handler.handleCallback(Handler.java:587)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.os.Handler.dispatchMessage(Handler.java:92)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.os.Looper.loop(Looper.java:130)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at androID.app.ActivityThread.main(ActivityThread.java:3687)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at java.lang.reflect.Method.invokeNative(Native Method)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at java.lang.reflect.Method.invoke(Method.java:507)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at com.androID.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at com.androID.internal.os.ZygoteInit.main(ZygoteInit.java:625)06-30 03:13:03.731: E/AndroIDRuntime(4187):     at dalvik.system.NativeStart.main(Native Method)

soundfile似乎是null.这是为什么？我的歌是song1.mpe,位于res下的原始文件夹中.

清单中添加的权限：

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

解决方法:

将您的铃声发送到资源文件夹并使用此代码

Uri path = Uri.parse("androID.resource://yourpackagename/raw/yoursoundfile")ringtoneManager.setActualDefaultringtoneUri(                    getApplicationContext(), ringtoneManager.TYPE_ringtone,                    path);            Log .i("TESTT", "ringtone Set to Resource: "+ path.toString());            ringtoneManager.getringtone(getApplicationContext(), path)                    .play();

将此权限添加到AndroIDManifest.xml：

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

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