我有一個數據庫有以下的列:SQLite-按鈕增加價值db.query
Book_name
,book_id
,chapter_number
,chapter_id
,line_number
,line_id
我做這個應用程序讀取書籍,選擇要閱讀的章節,然後顯示所有行。
首先listview
顯示所有的書籍,當用戶選擇一本書的名字,它傳遞給顯示所有書插在章節book_id,選擇一個章節時,它通過chapter_id
以顯示章節下的所有行。
我的問題是,當用戶忙於閱讀時,他們必須按下後退按鈕以再次顯示所有章節,然後選擇下一章節。我想在listview
上放一個按鈕,顯示用戶按下的所有行(在選擇章節後),然後它應該基本上重新查詢數據庫以顯示下一個可用章節。
每個listview
都在它自己的活動中,並且id的獲取與Intents一起傳遞。
我不知道你們想看什麼代碼,所以請問。
這是列表在DBHandler2
的章節:
public List<defineBybeldbAlles> getListHoofstuk(String boek_id_na_hoofstuk){
defineBybeldbAlles defineBybeldbHoofstuk = null;
List<defineBybeldbAlles> defineBybeldbAllesList = new ArrayList<>();
opendatabase();
Cursor cursor = mDatabase.rawQuery("SELECT * FROM PWLBybel WHERE " + COLUMN_BOEK_ID + " = '" + boek_id_na_hoofstuk + "'GROUP BY hoofstuk_id ORDER BY hoofstuk_id * 1 ASC", null);
cursor.moveToFirst();
while (!cursor.isAfterLast()){
defineBybeldbHoofstuk = new defineBybeldbAlles(cursor.getInt(0), cursor.getString(1),cursor.getString(2),cursor.getInt(3),cursor.getString(4),cursor.getInt(5),cursor.getString(6),cursor.getString(7),cursor.getInt(8),cursor.getString(9),cursor.getString(10));
defineBybeldbAllesList.add(defineBybeldbHoofstuk);
cursor.moveToNext();
}
cursor.close();
closeDatabase();
return defineBybeldbAllesList;
}
這是,我通過的chapter_id
在我的章活動到diplay線在行活動:
public void onItemClick (AdapterView<?> arg0, View view, int arg2, long arg3){
//on selecting a hoofstk
//BybelActivityVers will be launched to show verse inside
Intent hoofstukIntent = new Intent(BybelActivityHoofstuk.this,BybelActivityVers.class);
//send hoofstuk_id to VersActivity to get verse under that book
String hoofstuk_id_na_vers = ((TextView)view.findViewById(R.id.hoofstuk_id)).getText().toString();
hoofstukIntent.putExtra("hoofstuk_id", hoofstuk_id_na_vers);
String hoofstuk_nommer_na_vers = ((TextView)view.findViewById(R.id.custom_row_hoofstuktext)).getText().toString();
hoofstukIntent.putExtra("custom_row_hoofstuktext", hoofstuk_nommer_na_vers);
startActivity(hoofstukIntent);
}
});
現在這是爲行列表在DBHandler3
:在當前章節
public List<defineBybeldbAlles> getListVers(String hoofstuk_id_na_vers){
defineBybeldbAlles defineBybeldbVers = null;
List<defineBybeldbAlles> defineBybeldbVersList = new ArrayList<>();
opendatabase();
Cursor cursor = mDatabase.rawQuery("SELECT * FROM PWLBybel WHERE " + COLUMN_HOOFSTUK_ID + " = '" + hoofstuk_id_na_vers + "'GROUP BY vers_id ORDER BY vers_id * 1 ASC", null);
cursor.moveToFirst();
while (!cursor.isAfterLast()){
defineBybeldbVers = new defineBybeldbAlles(cursor.getInt(0), cursor.getString(1),cursor.getString(2),cursor.getInt(3),cursor.getString(4),cursor.getInt(5),cursor.getString(6),cursor.getString(7),cursor.getInt(8),cursor.getString(9),cursor.getString(10));
defineBybeldbVersList.add(defineBybeldbVers);
cursor.moveToNext();
}
cursor.close();
closeDatabase();
return defineBybeldbVersList;
}
能否請您給我的例子DAT意圖在我現在的代碼中,它是怎麼樣的,我不是一個專家對不起 – FDupie