追加された食品に基づいて表示されるカロリーの合計を実行する必要があります。私のデザインは次のようなものです：
Breakfast
[EDITTEXT]
[BUTTON][TEXTVIEW] <--display food name and calories
[BUTTON2][TEXTVIEW2]
[BUTTON3][TEXTVIEW3]
[BUTTON4][TEXTVIEW4]
[BUTTON5][TEXTVIEW5]
ランチとディナーで同じことを繰り返す
最後に、追加された食品に基づいて総カロリー量を表示する TEXTVIEW が必要です。
誰でもその方法を知っていますか？
これが私のコードです：
public class MyFoodCalIntakeActivity extends Activity {
private Button breakfastSearchButton;
private Button breakfastSearchButton2;
private Button breakfastSearchButton3;
private Button breakfastSearchButton4;
private Button breakfastSearchButton5;
private Button lunchSearchButton;
private Button lunchSearchButton2;
private Button lunchSearchButton3;
private Button lunchSearchButton4;
private Button lunchSearchButton5;
private Button dinnerSearchButton;
private Button dinnerSearchButton2;
private Button dinnerSearchButton3;
private Button dinnerSearchButton4;
private Button dinnerSearchButton5;
private EditText breakfastEditText;
private EditText lunchEditText;
private EditText dinnerEditText;
private TextView breakfastTextView1;
private TextView breakfastTextView2;
private TextView breakfastTextView3;
private TextView breakfastTextView4;
private TextView breakfastTextView5;
private TextView lunchTextView1;
private TextView lunchTextView2;
private TextView lunchTextView3;
private TextView lunchTextView4;
private TextView lunchTextView5;
private TextView dinnerTextView1;
private TextView dinnerTextView2;
private TextView dinnerTextView3;
private TextView dinnerTextView4;
private TextView dinnerTextView5;
private DatabaseHelper dbHelper = new DatabaseHelper(MyFoodCalIntakeActivity.this,"food",2);
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.food_calorie_intake);
。。。
class breakfastSearchButtonListener implements OnClickListener, android.view.View.OnClickListener
{
public void onClick(View v)
{
if (v.getId() == R.id.breakfastSearchButton) {
String display = "";
SQLiteDatabase db = dbHelper.getWritableDatabase();
/** the result will be loaded in cursor **/
Cursor cursor = db.query("food_table", new String[]{"ID","name","calorie"}, null, null, null, null, null);
while(cursor.moveToNext())
{
String name = cursor.getString(cursor.getColumnIndex("name"));
String calorie = cursor.getString(cursor.getColumnIndex("calorie"));
if (name.compareTo(breakfastEditText.getText().toString())==0){
display = display +"Name: "+name+", Calorie: "+calorie;
breakfastTextView1.setText(display);
}
}
}
}
public void onClick(DialogInterface dialog, int which)
{
// TODO Auto-generated method stub
}
} // end activity
コードが少し長くなりますのでご了承ください。