こんばんは、stackoverflowの親切な人々。データベースからすべてのデータを取り出して、TextViewに表示したいと思います。どうすればそれを達成できますか？
さらに、データベースからデータ（すべて）を取り出し、soapメッセージを介して遠く離れたWSに送信したいと思います。WSDLの設定について質問はありませんが、データベースからデータを取得して何度も使用する方法についての情報が必要です。
コードは次のとおりです。
package com.example.prototype2;
import android.os.Bundle;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.support.v4.app.NavUtils;
public class AddGlucose extends Activity implements OnClickListener {
final String LOG_TAG = "myLogs";
Button btnAdd, btnRead, btnClear;
EditText etGlucose, etTime, etDate;
DBHelper dbHelper;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_glucose);
// Show the Up button in the action bar.
setupActionBar();
btnAdd = (Button) findViewById(R.id.btnAdd);
btnAdd.setOnClickListener(this);
btnRead = (Button) findViewById(R.id.btnRead);
btnRead.setOnClickListener(this);
btnClear = (Button) findViewById(R.id.btnClear);
btnClear.setOnClickListener(this);
etGlucose = (EditText) findViewById(R.id.etGlucose);
etTime = (EditText) findViewById(R.id.etTime);
etDate = (EditText) findViewById(R.id.etDate);
dbHelper = new DBHelper(this);
}
/**
* Set up the {@link android.app.ActionBar}.
*/
private void setupActionBar() {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.add_glucose, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// This ID represents the Home or Up button. In the case of this
// activity, the Up button is shown. Use NavUtils to allow users
// to navigate up one level in the application structure. For
// more details, see the Navigation pattern on Android Design:
//
// http://developer.android.com/design/patterns/navigation.html#up-vs-back
//
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
ContentValues cv = new ContentValues();
String glucose = etGlucose.getText().toString();
String time = etTime.getText().toString();
String date = etDate.getText().toString();
SQLiteDatabase db = dbHelper.getWritableDatabase();
switch (v.getId()) {
case R.id.btnAdd:
Log.d(LOG_TAG, "--- Insert in mytable: ---");
cv.put("glucose", glucose);
cv.put("time", time);
cv.put("date", date);
long rowID = db.insert("mytable", null, cv);
Log.d(LOG_TAG, "row inserted, ID = " + rowID);
break;
case R.id.btnRead:
Log.d(LOG_TAG, "--- Rows in mytable: ---");
Cursor c = db.query("mytable", null, null, null, null, null, null, null);
if (c.moveToFirst()) {
int idColIndex = c.getColumnIndex("id");
int glucoseColIndex = c.getColumnIndex("glucose");
int timeColIndex = c.getColumnIndex("time");
int dateColIndex = c.getColumnIndex("date");
do {
Log.d(LOG_TAG,
"ID = " + c.getInt(idColIndex) +
", glucose = " + c.getString(glucoseColIndex) +
", time = " + c.getString(timeColIndex) + ", date = " + c.getString(dateColIndex));
} while (c.moveToNext());
} else
Log.d(LOG_TAG, "0 rows");
c.close();
break;
case R.id.btnClear:
Log.d(LOG_TAG, "--- Clear mytable: ---");
int clearCount = db.delete("mytable", null, null);
Log.d(LOG_TAG, "deleted rows count = " + clearCount);
break;
}
dbHelper.close();
}
class DBHelper extends SQLiteOpenHelper {
public DBHelper(Context context) {
super(context, "mytable", null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
Log.d(LOG_TAG, "--- onCreate database ---");
// создаем таблицу с полями
db.execSQL("create table mytable ("
+ "id integer primary key autoincrement,"
+ "glucose text,"
+ "time text," + "date text" + ");");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
}