所以我正在制作一个音板应用程序，我正在尝试将保存声音作为通知实现。但问题是，只要用户确认保存为通知，应用就会崩溃。
到目前为止我所拥有的：
private OnItemLongClickListener longClickListener = new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> parent, View v,
final int position, long id) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
CharSequence[] menu = new CharSequence[1];
menu[0] = "Notification";
// menu[1] = "Ringtone";
builder.setTitle("Save As...").setItems(menu,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// The 'which' argument contains the index position
// of the selected item
switch (which) {
case 0:
if (saveAsNotification(getSounds()
.get(position))) {
Toast.makeText(getActivity(),
"Saved as Notification",
Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getActivity(),
"Failed to Save Notification",
Toast.LENGTH_SHORT).show();
}
break;
default:
break;
}
}
});
builder.create().show();
return true;
}
};
public boolean saveAsNotification(Sound sound) {
byte[] buffer = null;
InputStream fIn = getActivity().getBaseContext().getResources()
.openRawResource(sound.getSoundResourceId());
int size = 0;
try {
size = fIn.available();
buffer = new byte[size];
fIn.read(buffer);
fIn.close();
} catch (IOException e) {
e.printStackTrace();
return false;
}
String path = Environment.getExternalStorageDirectory().getPath()
+ "/media/audio/notifications/";
String filename = sound.getDescription() + ".ogg";
boolean exists = (new File(path)).exists();
if (!exists) {
new File(path).mkdirs();
}
FileOutputStream save;
try {
save = new FileOutputStream(path + filename);
save.write(buffer);
save.flush();
save.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
e.printStackTrace();
return false;
}
getActivity().sendBroadcast(
new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri
.parse("file://" + path + filename)));
File k = new File(path, filename);
ContentValues values = new ContentValues();
values.put(MediaStore.MediaColumns.DATA, k.getAbsolutePath());
values.put(MediaStore.MediaColumns.TITLE, sound.getDescription());
values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/ogg");
values.put(MediaStore.Audio.Media.ARTIST, "soundboarder");
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);
// Insert it into the database
getActivity().getContentResolver()
.insert(MediaStore.Audio.Media.getContentUriForPath(k
.getAbsolutePath()), values);
return true;
}
以下是崩溃时的logcat输出：
10-21 18:56:54.315: W/ResourceType(19905): No known package when getting value for resource number 0xffffffff
10-21 18:56:54.315: D/AndroidRuntime(19905): Shutting down VM
10-21 18:56:54.315: W/dalvikvm(19905): threadid=1: thread exiting with uncaught exception (group=0x41510ba8)
10-21 18:56:54.315: E/AndroidRuntime(19905): FATAL EXCEPTION: main
10-21 18:56:54.315: E/AndroidRuntime(19905): Process: com.metrico.trailerparkboyssoundboard, PID: 19905
10-21 18:56:54.315: E/AndroidRuntime(19905): android.content.res.Resources$NotFoundException: Resource ID #0xffffffff
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.content.res.Resources.getValue(Resources.java:1123)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.content.res.Resources.openRawResource(Resources.java:1038)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.content.res.Resources.openRawResource(Resources.java:1015)
10-21 18:56:54.315: E/AndroidRuntime(19905): at com.metrico.trailerparkboyssoundboard.fragments.SoundboardFragment.saveAsNotification(SoundboardFragment.java:130)
10-21 18:56:54.315: E/AndroidRuntime(19905): at com.metrico.trailerparkboyssoundboard.fragments.SoundboardFragment$1$1.onClick(SoundboardFragment.java:106)
10-21 18:56:54.315: E/AndroidRuntime(19905): at com.android.internal.app.AlertController$AlertParams$3.onItemClick(AlertController.java:941)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.widget.AdapterView.performItemClick(AdapterView.java:299)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.widget.AbsListView.performItemClick(AbsListView.java:1113)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.widget.AbsListView$PerformClick.run(AbsListView.java:2904)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.widget.AbsListView$3.run(AbsListView.java:3638)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.os.Handler.handleCallback(Handler.java:733)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.os.Handler.dispatchMessage(Handler.java:95)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.os.Looper.loop(Looper.java:136)
10-21 18:56:54.315: E/AndroidRuntime(19905): at android.app.ActivityThread.main(ActivityThread.java:5017)
10-21 18:56:54.315: E/AndroidRuntime(19905): at java.lang.reflect.Method.invokeNative(Native Method)
10-21 18:56:54.315: E/AndroidRuntime(19905): at java.lang.reflect.Method.invoke(Method.java:515)
10-21 18:56:54.315: E/AndroidRuntime(19905): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
10-21 18:56:54.315: E/AndroidRuntime(19905): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
10-21 18:56:54.315: E/AndroidRuntime(19905): at dalvik.system.NativeStart.main(Native Method)
对话框弹出很好，但只要我点击“另存为通知”，应用就会崩溃。
答案 0 :(得分：0)
我认为这部分代码会导致错误
InputStream fIn = getActivity().getBaseContext().getResources().openRawResource(sound.getSoundResourceId());
错误消息显示您正在尝试打开ID为-1的资源，请确保getSoundResourceId()返回正确的ID号。