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在我的Android程序中,我嘗試使用具有選擇參數的managedQuery,但我得到一個Sql異常。無法獲得帶有選擇的managedQuery
07-26 19:30:44.364: INFO/Database(1163):
sqlite returned: error code = 1, msg = near ".": syntax error
這是我的示例代碼
String[] proj = { MediaStore.Audio.Media._ID,
MediaStore.Audio.Media.DATA, MediaStore.Audio.Media.TITLE,
MediaStore.Audio.Media.ARTIST, MediaStore.Audio.Media.ALBUM_ID,
MediaStore.Audio.Media.IS_MUSIC };
// Example without selection, works
String selection = null;
Cursor musiccursor = managedQuery(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, proj, selection, null,
null);
// Example with selection, does not work
selection = "MediaStore.Audio.Media._ID = 1";
musiccursor = managedQuery(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, proj, selection, null,
null);
謝謝,尼克拉斯
謝謝,現在它工作正常。 :-) – Mackalacka