SDカードからファイルを削除しようとしていますが、このエラーが発生します
04-06 11:36:25.762: W/System.err(4214): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
04-06 11:36:25.782: W/System.err(4214): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
04-06 11:36:25.782: W/System.err(4214): at java.util.ArrayList.get(ArrayList.java:304)
04-06 11:36:25.782: W/System.err(4214): at com.myapp.functions.DownloadedAlbumLazyAdapter$1$1.onClick(DownloadedAlbumLazyAdapter.java:96)
04-06 11:36:25.782: W/System.err(4214): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
04-06 11:36:25.792: W/System.err(4214): at android.os.Handler.dispatchMessage(Handler.java:99)
04-06 11:36:25.792: W/System.err(4214): at android.os.Looper.loop(Looper.java:137)
04-06 11:36:25.792: W/System.err(4214): at android.app.ActivityThread.main(ActivityThread.java:4440)
04-06 11:36:25.792: W/System.err(4214): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 11:36:25.792: W/System.err(4214): at java.lang.reflect.Method.invoke(Method.java:511)
04-06 11:36:25.792: W/System.err(4214): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
04-06 11:36:25.792: W/System.err(4214): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
04-06 11:36:25.792: W/System.err(4214): at dalvik.system.NativeStart.main(Native Method)
ファイルを削除するための私のコードは次のとおりです。
dbHelper = new DatabaseHelper(activity);
dbHelper.openDB();
try {
ArrayList<Songs> downSongs = new ArrayList<Songs>();
Log.v("--", downSongs.size()+"");
downSongs = dbHelper
.getDownloadedSongsForAlbum(data.get(
position).getTAG_ID());
for (int i = 0; i < downSongs.size(); i++) {
File file = new File(downSongs.get(i)
.getSONG_MP3());
Log.v("--", downSongs.get(i).getSONG_MP3());
Log.v("--",file.delete()+"");
dbHelper.removeDownloadedAlbum(data.get(i)
.getTAG_ID());
dbHelper.removeDownloadedSong(downSongs
.get(i).getSONG_MP3());
dbHelper.closeDB();
ダウンロードした曲を db から取得する関数:
public ArrayList<Songs> getDownloadedSongsForAlbum(String albumID){
Cursor c = database.rawQuery("SELECT * FROM downloaded_songs " + "WHERE "
+ "album_id" + " = '" + albumID + "'", null);
ArrayList<Songs> songs=new ArrayList<Songs>();
if (c != null)
if (c.moveToFirst()) {
do {
String title = c.getString(c.getColumnIndex("title"));
String artist = c.getString(c.getColumnIndex("artist"));
String mp3 = c.getString(c.getColumnIndex("mp3"));
String mp4 = c.getString(c.getColumnIndex("mp4"));
String thumb = c.getString(c.getColumnIndex("thumb"));
songs.add(new Songs(title, artist, mp3, mp4, "http://mylink.com/cover_image/"+thumb));
} while (c.moveToNext());
}
return songs;
}