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嗨，我很新的數據庫。我有一個代碼來檢索手機短信收件箱，發件箱和草稿，並使用SimpleCursor適配器在ListView中顯示它。我想保存並檢索「發送框」的ListView項目（一次一個）到SQLite數據庫。目前我可以使用edittext值將數據插入到數據庫中。所以基本上我想要的是一次選擇ListView項目的方法，並將其保存在String []中，然後將String []值插入到數據庫中。任何幫助，將不勝感激。提前致謝。simplecursoradapter/listview到sqlite數據庫
Code to display database items using "ListActivity"
SQLiteDatabase db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try
{
db=openOrCreateDatabase("Student.db", SQLiteDatabase.CREATE_IF_NECESSARY, null);
Cursor c=db.rawQuery("select id,name,age from Stud", null);
ArrayList<String> list = new ArrayList<String>();
int count=c.getCount();
if(c.getCount()>0)
{
while(c.moveToNext())
{
list.add(c.getString(0)+" , "+c.getString(1)+" , "+c.getString(2));
}
c.close();
Toast.makeText(this,"Total Records: "+count, Toast.LENGTH_LONG).show();
ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, list);
getListView().setAdapter(adapter);
}
else
{
Toast.makeText(this, "No Record Found" , Toast.LENGTH_LONG).show();
}
}
catch(Exception e)
{
Toast.makeText(this, ""+e, Toast.LENGTH_LONG).show();
}
}
public void onDestroy()
{
super.onDestroy();
db.close();
}
}SQLite database
public class MainActivity extends Activity {
SQLiteDatabase db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
createDB();
//do insert
Button btnInsert=(Button)findViewById(R.id.btnInsert);
btnInsert.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
insert();
}
});
Button btnClear=(Button)findViewById(R.id.btnClear);
btnClear.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
clear();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
CreateMenu(menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
return MenuChoice(item);
}
private void CreateMenu(Menu menu)
{
MenuItem mnu1 = menu.add(0, 0, 0, "Insert");
{
mnu1.setAlphabeticShortcut('i');
mnu1.setIcon(android.R.drawable.ic_input_add);
}
MenuItem mnu2 = menu.add(0, 1, 1, "Search");
{
mnu2.setAlphabeticShortcut('s');
mnu2.setIcon(android.R.drawable.ic_search_category_default);
}
MenuItem mnu3 = menu.add(0, 2, 2, "Delete");
{
mnu3.setAlphabeticShortcut('d');
mnu3.setIcon(android.R.drawable.ic_delete);
}
MenuItem mnu4 = menu.add(0, 3, 3, "View");
{
mnu4.setAlphabeticShortcut('d');
mnu4.setIcon(android.R.drawable.ic_menu_info_details);
}
}
private boolean MenuChoice(MenuItem item)
{
Intent intent=new Intent();
switch (item.getItemId()) {
case 0:
insert();
return true;
case 1:
intent.setClass(MainActivity.this, Search.class);
startActivity(intent);
return true;
case 2:
intent.setClass(MainActivity.this, Search.class);
startActivity(intent);
return true;
case 3:
intent.setClass(MainActivity.this, ViewRecord.class);
startActivity(intent);
return true;
}
return false;
}
public void createDB()
{
db=openOrCreateDatabase("Student.db", SQLiteDatabase.CREATE_IF_NECESSARY, null);
db.setLocale(Locale.getDefault());
db.setLockingEnabled(true);
db.setVersion(1);
String sql="create table if not exists Stud(id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER)";
db.execSQL(sql);
}
public void insert()
{
EditText txtName=(EditText)findViewById(R.id.txtName);
EditText txtAge=(EditText)findViewById(R.id.txtAge);
if(txtName.getText().toString().equals(""))
{
Toast.makeText(MainActivity.this, "Enter Name.", Toast.LENGTH_SHORT).show();
}
else if (txtAge.getText().toString().equals(""))
{
Toast.makeText(MainActivity.this, "Enter Age.", Toast.LENGTH_SHORT).show();
}
else
{
String sql="insert into Stud(name,age) values('"+ txtName.getText().toString() +"',"+txtAge.getText().toString()+")";
db.execSQL(sql);
clear();
Toast.makeText(MainActivity.this, "Record Successfully Inserted.", Toast.LENGTH_SHORT).show();
}
}
public void clear()
{
EditText txtName=(EditText)findViewById(R.id.txtName);
EditText txtAge=(EditText)findViewById(R.id.txtAge);
txtName.setText("");
txtAge.setText("");
txtName.clearFocus();
txtAge.clearFocus();
txtName.requestFocus();
}
@Override
public void onDestroy()
{
super.onDestroy();
db.close();
}
}Code for displaying SMS Inbox, Sent Box and Draft
public class MessageBox extends Activity implements OnClickListener {
\t // GUI Widget
\t Button btnSent, btnInbox, btnDraft;
\t TextView lblMsg, lblNo;
\t ListView lvMsg;
\t // Cursor Adapter
\t SimpleCursorAdapter adapter;
\t /** Called when the activity is first created. */
\t @Override
\t public void onCreate(Bundle savedInstanceState) {
\t \t super.onCreate(savedInstanceState);
\t \t setContentView(R.layout.messagebox);
\t \t // Init GUI Widget
\t \t btnInbox = (Button) findViewById(R.id.btnInbox);
\t \t btnInbox.setOnClickListener(this);
\t \t btnSent = (Button) findViewById(R.id.btnSentBox);
\t \t btnSent.setOnClickListener(this);
\t \t btnDraft = (Button) findViewById(R.id.btnDraft);
\t \t btnDraft.setOnClickListener(this);
\t \t lvMsg = (ListView) findViewById(R.id.lvMsg);
\t }
\t @Override
\t public void onClick(View v) {
\t \t if (v == btnInbox) {
\t \t \t // Create Inbox box URI
\t \t \t Uri inboxURI = Uri.parse("content://sms/inbox");
\t \t \t // List required columns
\t \t \t String[] reqCols = new String[] { "_id", "address", "body" };
\t \t \t // Get Content Resolver object, which will deal with Content
\t \t \t // Provider
\t \t \t ContentResolver cr = getContentResolver();
\t \t \t // Fetch Inbox SMS Message from Built-in Content Provider
\t \t \t Cursor c = cr.query(inboxURI, reqCols, null, null, null);
\t \t \t // Attached Cursor with adapter and display in listview
\t \t \t adapter = new SimpleCursorAdapter(this, R.layout.row, c,
\t \t \t \t \t new String[] { "body", "address" }, new int[] {
\t \t \t \t \t \t \t R.id.lblMsg, R.id.lblNumber });
\t \t \t lvMsg.setAdapter(adapter);
\t \t }
\t \t if (v == btnSent) {
\t \t \t // Create Sent box URI
\t \t \t Uri sentURI = Uri.parse("content://sms/sent");
\t \t \t // List required columns
\t \t \t String[] reqCols = new String[] { "_id", "address", "body" };
\t \t \t // Get Content Resolver object, which will deal with Content
\t \t \t // Provider
\t \t \t ContentResolver cr = getContentResolver();
\t \t \t // Fetch Sent SMS Message from Built-in Content Provider
\t \t \t Cursor c = cr.query(sentURI, reqCols, null, null, null);
\t \t \t // Attached Cursor with adapter and display in listview
\t \t \t adapter = new SimpleCursorAdapter(this, R.layout.row, c,
\t \t \t \t \t new String[] { "body", "address" }, new int[] {
\t \t \t \t \t \t \t R.id.lblMsg, R.id.lblNumber });
\t \t \t lvMsg.setAdapter(adapter);
\t \t }
\t \t if (v == btnDraft) {
\t \t \t // Create Draft box URI
\t \t \t Uri draftURI = Uri.parse("content://sms/draft");
\t \t \t // List required columns
\t \t \t String[] reqCols = new String[] { "_id", "address", "body" };
\t \t \t // Get Content Resolver object, which will deal with Content
\t \t \t // Provider
\t \t \t ContentResolver cr = getContentResolver();
\t \t \t // Fetch Sent SMS Message from Built-in Content Provider
\t \t \t Cursor c = cr.query(draftURI, reqCols, null, null, null);
\t \t \t // Attached Cursor with adapter and display in listview
\t \t \t adapter = new SimpleCursorAdapter(this, R.layout.row, c,
\t \t \t \t \t new String[] { "body", "address" }, new int[] {
\t \t \t \t \t \t \t R.id.lblMsg, R.id.lblNumber });
\t \t \t lvMsg.setAdapter(adapter);
\t \t }
\t }
}
沒有人有任何想法？ –