我有多个复选框。我打算将所选复选框保存到sqlite数据库中.Ex：如果选中它，则值应为1.如果未选中，则值应为0.我的当前代码正在保存所有复选框文本。请指教。 基
这是我的代码
主要活动。
Spinner s1,s2,s3;
Button btnAdd;
EditText inputLabel;
DatabaseHandler dbhndlr;
Cursor spinner1csr, spinner2csr;
SimpleCursorAdapter sca, sca2;
long spinner1_selected = 0;
CheckBox ck1,ck2,ck3,ck4,ck5,ck6,ck7,ck8;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_spinner_ex4);
s1 = (Spinner)findViewById(R.id.spinner1);
s2 = (Spinner)findViewById(R.id.spinner2);
s3 = (Spinner)findViewById(R.id.spinner3);
btnAdd = (Button) findViewById(R.id.btn_add);
inputLabel = (EditText) findViewById(R.id.input_label);
dbhndlr = new DatabaseHandler(this);
ck1=(CheckBox) findViewById(R.id.checkBox);
ck2=(CheckBox)findViewById(R.id.checkBox2);
ck3=(CheckBox)findViewById(R.id.checkBox3);
ck4=(CheckBox)findViewById(R.id.checkBox4);
ck6=(CheckBox) findViewById(R.id.checkBox5);
ck7=(CheckBox)findViewById(R.id.checkBox6);
ck8=(CheckBox)findViewById(R.id.checkBox7);
loadSpinnerData();
if (DatabaseUtils.queryNumEntries(dbhndlr.getWritableDatabase(),DatabaseHandler.TABLE_LABELS) < 1) {
dbhndlr.insertlabel("899","Chris");
dbhndlr.insertlabel("890","David");
}
// Get Cursors for Spinners
spinner1csr = dbhndlr.getAllLabelsAsCursor();
//Setup Adapter for Spinner 1
sca = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1,spinner1csr,
new String[]{DatabaseHandler.KEY_NAME},
new int[]{android.R.id.text1},
0
);
// Set the Adapters to the Spinners
s1.setAdapter(sca);
// Set Spinner1 OnSelectedItemListener
s1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(parent.getContext(),
"You Selected: " + id + " - " +
spinner1csr.getString(
spinner1csr.getColumnIndex(DatabaseHandler.KEY_NAME)) +
" - " + spinner1csr.getString(spinner1csr.getColumnIndex(DatabaseHandler.KEY_ID))
,
Toast.LENGTH_SHORT).show();
spinner1_selected = id;
spinner2csr = dbhndlr.getByRowid(spinner1_selected);
sca2.swapCursor(spinner2csr);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
//Steup Adapter for Spinner2
spinner2csr = dbhndlr.getByRowid(spinner1_selected);
sca2 = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1,
spinner2csr,
new String[]{DatabaseHandler.KEY_ID},
new int[]{android.R.id.text1},
0
);
s2.setAdapter(sca2);
// Set Spinner2 OnSelectedItemListener
/* Not needed
s2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(parent.getContext(),
"You Selected: " + id + " - " +
spinner2csr.getString(
spinner2csr.getColumnIndex(DatabaseHandler.KEY_NAME)) +
" - " + spinner2csr.getString(spinner2csr.getColumnIndex(DatabaseHandler.KEY_ID)),
Toast.LENGTH_SHORT).show();
spinner2_selected = id;
spinner1csr = dbhndlr.getAllLabelsExceptedSelected(spinner2_selected);
sca.swapCursor(spinner1csr);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
*/
btnAdd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
//String label = inputLabel.getText().toString();
String SaveString="No";
ck1.isChecked();
DatabaseHandler db = new DatabaseHandler(getApplicationContext());
String message1= ((Cursor) s1.getSelectedItem()).getString(2);
String message2= ((Cursor) s2.getSelectedItem()).getString(1);
String message = inputLabel.getText().toString();
// String message1 = s1.getSelectedItem().toString();
// String message2 = s2.getSelectedItem().toString();
String message10 = s3.getSelectedItem().toString();
String message4 = ck1.getText().toString();
String message5 = ck2.getText().toString();
String message6 = ck3.getText().toString();
String message7 = ck4.getText().toString();
String message9 = ck6.getText().toString();
String message3 = ck7.getText().toString();
String message8 = ck8.getText().toString();
db.insertLabel(message1,message2,message5,message6,message7,message9,message3,message4,message8,message10);
if (ck1.isChecked())
{ SaveString="Yes";
}
else
{ SaveString="No";
}
if (ck2.isChecked())
{ SaveString="Yes";
}
else
{ SaveString="No";
}
if (message.trim().length() > 0) {
// database handler commeneted out, use dbhndlr instance instead
// inserting new label into database
// making input filed text to blank
inputLabel.setText("");
// Hiding the keyboard
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(inputLabel.getWindowToken(), 0);
// loading spinner with newly added data
spinner1csr = dbhndlr.getAllLabelsAsCursor();
spinner2csr = dbhndlr.getByRowid(spinner1_selected);
sca.swapCursor(spinner1csr);
sca2.swapCursor(spinner2csr);
} else {
Toast.makeText(getApplicationContext(), "Please enter label name",
Toast.LENGTH_SHORT).show();
}
}
});
}
private void loadSpinnerData() {
// database handler
DatabaseHandler db = new DatabaseHandler(getApplicationContext());
// Spinner Drop down elements
List<String> lables = db.getAllLabels();
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, lables);
// Drop down layout style - list view with radio button
dataAdapter1
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
s3.setAdapter(dataAdapter1);
}
@Override
public void onDestroy() {
spinner1csr.close();
spinner2csr.close();
super.onDestroy();
}
}
数据库
public class DatabaseHandler extends SQLiteOpenHelper {
// Database Version
public static final int DATABASE_VERSION = 1;
// Database Name
public static final String DATABASE_NAME = "spinnerExample";
// Labels table name
public static final String TABLE_LABELS = "labels"; //<<<< Made public
public static final String TABLE_LABELS1= "labels1";
public static final String TABLE_LABELS2= "labels2";
// Labels Table Columns names
public static final String KEY_ID4 = "input_label";
public static final String KEY_ID = "id"; //<<<< Made public
public static final String KEY_NAME = "name"; //<<<< made public
public static final String KEY_ID1 = "id1"; //<<<< Made public
public static final String KEY_NAME1 = "name1";
public static final String KEY_1 = "number"; //<<<< Made public
public static final String KEY_2 = "outletname"; //<<<< made public
public static final String KEY_3 = "sunday"; //<<<< Made public
public static final String KEY_4 = "monday";
public static final String KEY_5 = "tuesday";
public static final String KEY_6 = "wednesday";
public static final String KEY_7 = "thursday";
public static final String KEY_8 = "saturday";
public static final String KEY_9 = "closed";
public static final String KEY_10 = "calling";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
// Category table create query
String CREATE_CATEGORIES_TABLE = "CREATE TABLE " + TABLE_LABELS + "("
+ KEY_ID + " TEXT," + KEY_NAME + " TEXT)";
String CREATE_CATEGORIES_TABLE1 = "CREATE TABLE " + TABLE_LABELS1 + "("
+ KEY_ID1+ " TEXT," + KEY_NAME1+ " TEXT)";
db.execSQL(CREATE_CATEGORIES_TABLE);
db.execSQL(CREATE_CATEGORIES_TABLE1);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_LABELS);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_LABELS1);
// Create tables again
onCreate(db);
}
// Added for adding new data
public void insertlabel(String id, String label) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(KEY_ID,id);
cv.put(KEY_NAME,label);
db.insert(TABLE_LABELS,null,cv);
db.close();
}
/**
* Inserting new lable into lables table
* */
public void insertLabel(String message1, String message2,String message3,String message4,String message5,String message6,String message7,String message8,String message9,String message10){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_1, message1);
values.put(KEY_2, message2);
values.put(KEY_10,message10);
values.put(KEY_3,message3);
values.put(KEY_4,message4);
values.put(KEY_5,message5);
values.put(KEY_6,message6);
values.put(KEY_7,message7);
values.put(KEY_9,message9);
values.put(KEY_8,message8);
// Inserting Row
db.insert(TABLE_LABELS2, null, values);
db.close(); // Closing database connection
}
public void insertLabel1(String label){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME1, label);
// Inserting Row
db.insert(TABLE_LABELS1, null, values);
db.close(); // Closing database connection
}
public void insertLabel2(String label){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME1, label);
values.put(KEY_10, label);
values.put(KEY_ID, label);
db.insert(TABLE_LABELS2, null, values);
db.close(); // Closing database connection
}
public List<String> getAllLabels(){
List<String> labels = new ArrayList<String>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_LABELS1;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
labels.add(cursor.getString(1));
} while (cursor.moveToNext());
}
// closing connection
cursor.close();
db.close();
// returning lables
return labels;
}
// Added to get Cursor for Simple CursorAdapter
public Cursor getAllLabelsAsCursor() {
String[] columns = new String[]{"rowid AS _id, *"}; // Need _id column for SimpleCursorAdapter
return this.getWritableDatabase().query(TABLE_LABELS,columns,null,null,null,null,null);
}
public Cursor getAllLabelsExceptedSelected(long selected) {
String[] columns = new String[]{"rowid AS _id, *"};
String whereclause = "rowid <> ?";
String[] whereargs = new String[]{String.valueOf(selected)};
return this.getWritableDatabase().query(TABLE_LABELS,
columns,
whereclause,
whereargs,
null,
null,
null
);
}
public Cursor getByRowid(long id) {
String[] columns = new String[]{"rowid AS _id, *"};
return this.getWritableDatabase().query(
TABLE_LABELS,
columns,
"rowid=?",
new String[]{String.valueOf(id)},
null,null,null
);
}
}
答案 0 :(得分：1)
使用此代码保存复选框值
CheckboxName.isChecked();
答案 1 :(得分：1)
您可以直接使用ternary operator这样的
ck1.isChecked()?1:0
例如
db.insertLabel(ck1.isChecked()?1:0,ck2.isChecked()?1:0,ck3.isChecked()?1:0);