在Android中使用ContentResolver進行query操作，可以按照以下步驟進行：
ContentResolver contentResolver = context.getContentResolver();
Uri uri = Uri.parse("content://your_content_provider/your_table_name");
String[] projection = {"column1", "column2"};
String selection = "column3=?";
String[] selectionArgs = {"value"};
String sortOrder = "column4 ASC";
Cursor cursor = contentResolver.query(uri, projection, selection, selectionArgs, sortOrder);
if (cursor != null && cursor.moveToFirst()) {
do {
// 處理查詢結果
String column1 = cursor.getString(cursor.getColumnIndex("column1"));
String column2 = cursor.getString(cursor.getColumnIndex("column2"));
// ...
} while (cursor.moveToNext());
}
// 關閉Cursor
if (cursor != null) {
cursor.close();
}
注意：在進行查詢操作時，需要確保擁有正確的權限以訪問相關的ContentProvider。同時，建議在查詢結束后關閉Cursor以釋放資源。
