我在应用程序启动时创建一个表,并从EditText字符串名称添加更多表。
我的第一个数据库表
public static final String CREATE_ERAMPE_TABLE = "create table details" +
"(id integer primary key, username text, metre text, northing double," +
"eastings double,identification text, phone text, date text)";
通过
从活动创建其他表格SQLiteDatabase db = dbHelper.getWritableDatabase();
newTableName = dbTableName.getText().toString();
String sql = "create table "+ newTableName+
"(id integer primary key, username text, metre text, northing text," +
"eastings text,identification text, phone text, date text)";
Log.i("CreateDb=", sql);
将数据插入特定的
时 String insertTo = metreUsers.getTableName();
return database.insert(insertTo, null, cvs);
将所有表名列表添加到列表视图中我使用以下代码
public ArrayList<RegisteredGroups> getRegisteredGroups(){
ArrayList<RegisteredGroups> arrTblnames = new ArrayList<RegisteredGroups>();
// database = dbHelper.getWritableDatabase();
Cursor c = database.rawQuery("SELECT name FROM sqlite_master WHERE type='table' AND name != 'android_metadata' AND name != 'sqlite_sequence'", null);
while (c.moveToNext()){
RegisteredGroups grp = new RegisteredGroups();
grp.setGroupName(c.getString(c.getColumnIndex("name")));
arrTblnames.add(grp);
//get count of entries in every single table
String countQuery = "SELECT * FROM "+c.getString(c.getColumnIndex("name"));
Cursor cursor = database.rawQuery(countQuery, null);
int cnt = cursor.getCount();
grp.setGroupNumber(String.valueOf(cnt));
}
现在从这里点击listView上的第一项,其中包含数据库表名,我想将该特定表中的数据加载到listview中。
使用
传递表名rgGroup = (RegisteredGroups)parent.getItemAtPosition(position);
if (rgGroup != null){
Bundle arguments = new Bundle();
FragmentManager frag = getFragmentManager();
FragmentTransaction trans = frag.beginTransaction();
arguments.putParcelable("selectedGroup", rgGroup);
RegisteredUsersList regs = new RegisteredUsersList();
regs.setArguments(arguments);
答案 0 :(得分:0)
public ArrayList<String> loadArtist(){
ArrayList<String> list= new ArrayList<>();
SQLiteDatabase database=getReadableDatabase();
Cursor cursor = database.query(
ArtistMaster.ArtistDetails.TABLE_NAME,
new String[] {ArtistMaster.ArtistDetails.COLUMN_ARTIST_NAME},
null,
null,
null,
null,
null
);
while(cursor.moveToNext()) {
list.add(cursor.getString(
cursor.getColumnIndexOrThrow(
ArtistMaster.ArtistDetails.COLUMN_ARTIST_NAME)));
}
return list;
}