问题描述
package com.example.ak.aapppcom;
import android.content.Intent;
import android.database.Cursor;
导入android.os.AsyncTask;
导入android.support.v7.app.AppCompatActivity;
导入android.os.Bundle;
导入android.view.Menu;
导入android.view.MenuItem;
导入android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android。 widget.RatingBar;
import android.widget.Spinner;
import java.util.ArrayList;
公共类MainActivity扩展AppCompatActivity实现AdapterView.OnItemSelectedListener {
Button iv;
EditText et1;
RatingBar ra1;
Spinner spn;
private SQLController SQLcon;
@O verride
protected void onCreate（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）;
setContentView（R.layout.activity_main）;
iv =（按钮）findViewById（R.id.imageButton）;
et1 =（EditText）findViewById（R.id.et1） ;
ra1 =（RatingBar）findViewById（R.id.ratingBar1）;
spn =（Spinner）findViewById（R.id.spin）;
spn.setOnItemSelectedListener（this）;
SQLcon = new SQLController（this）;
//打开数据库
SQLcon.open（ ）;
loadtospinner（）;
}
public void loadtospinner（）{
Cursor c = SQLcon.readData（）;
ArrayList< string> al = new ArrayList< string>（）;
c.moveToFirst（）;
while（！c.isAfterLast（））{
String name = c.getString（c.getColumnIndex（DBhelper.COMMENTS））;
al .add（姓名）;
c.moveToNext（）;
}
}
@Override
public boolean onCreateOptionsMenu（菜单菜单）{
//给菜单充气;这会将项目添加到操作栏中。
getMenuInflater（）。inflate（R.menu.pop_up，menu）; //菜单资源，菜单
返回true;
}
@Override
public boolean onOptionsItemSelected（MenuItem item）{
switch（item.getItemId（））{
case R.id.item1：
//Toast.makeText (getApplicationContext（），Item 1 Selected ，Toast.LENGTH_LONG）。show（）;
Intent i = new Intent（getApplicationContext（），Item1.class）;
startActivity（i）;
返回true;
case R.id.item2：
//Toast.makeText (getApplicationContext（），Item 2 Selected，Toast.LENGTH_LONG） .show（）;
Intent i1 = new Intent（getApplicationContext（），Item1.class）;
startActivity（i1）;
return是的;
case R.id.item3：
//Toast.makeText (getApplicationContext（），Item 3 Selected，Toast.LENGTH_LONG）.show（）;
Intent i2 = new Intent（getApplicationContext（），Item1.class）;
startActivity（i2）;
返回true;
默认值：
返回super.onOptionsItemSelected（item）;
}
}
@Override
public void onItemSelected（AdapterView<？> parent，View view，int position，long id）{
String getcom;
getcom =;
int getrate;
getrate = 0;
SQLController handlerInfo = new SQLController（getBaseContext（））;
handlerInfo.open（）;
Cursor cursor = handlerInfo.readData（）;
if（cursor.moveToFirst（））{
do {
getcom = cursor.getString（1）;
getrate = cursor.getInt（2）;
} while（cursor.moveToNext （））;
}
handlerInfo.close（）;
}
@Override
public void onNothingSelected（AdapterView<？> parent）{
}
类MyAsync扩展AsyncTask< Void，Void，Void>
{
私人Dialog PD;
@Override
protected Void doInBackground（Void ... params）
{
String s = et1.getText（）。toString（）;
int rate = ra1.getNumStars（）;
//打开数据库
SQLcon.open（）;
//将数据插入表格
SQLcon.insertData（com，rate ）;
返回null;
}
@Override
protected void onPostExecute（Void result）{
super.onPostExecute（result）;
loadtospinner（）;
PD.dismiss（）;
}
}
}
我的尝试：
i想要将编辑文本的值存储到微调器中。请给我建议
package com.example.ak.aapppcom;
import android.content.Intent;
import android.database.Cursor;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RatingBar;
import android.widget.Spinner;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
Button iv;
EditText et1;
RatingBar ra1;
Spinner spn;
private SQLController SQLcon;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (Button) findViewById(R.id.imageButton);
et1 = (EditText) findViewById(R.id.et1);
ra1 = (RatingBar) findViewById(R.id.ratingBar1);
spn = (Spinner) findViewById(R.id.spin);
spn.setOnItemSelectedListener(this);
SQLcon = new SQLController(this);
// opening database
SQLcon.open();
loadtospinner();
}
public void loadtospinner() {
Cursor c = SQLcon.readData();
ArrayList<string> al = new ArrayList<string>();
c.moveToFirst();
while (!c.isAfterLast()) {
String name = c.getString(c.getColumnIndex(DBhelper.COMMENTS));
al.add(name);
c.moveToNext();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.pop_up, menu);//Menu Resource, Menu
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.item1:
//Toast.makeText(getApplicationContext(),"Item 1 Selected",Toast.LENGTH_LONG).show();
Intent i = new Intent(getApplicationContext(), Item1.class);
startActivity(i);
return true;
case R.id.item2:
//Toast.makeText(getApplicationContext(),"Item 2 Selected",Toast.LENGTH_LONG).show();
Intent i1 = new Intent(getApplicationContext(), Item1.class);
startActivity(i1);
return true;
case R.id.item3:
//Toast.makeText(getApplicationContext(),"Item 3 Selected",Toast.LENGTH_LONG).show();
Intent i2 = new Intent(getApplicationContext(), Item1.class);
startActivity(i2);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String getcom;
getcom = "";
int getrate;
getrate = 0;
SQLController handlerInfo = new SQLController(getBaseContext());
handlerInfo.open();
Cursor cursor = handlerInfo.readData();
if (cursor.moveToFirst()) {
do {
getcom = cursor.getString(1);
getrate = cursor.getInt(2);
} while (cursor.moveToNext());
}
handlerInfo.close();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
class MyAsync extends AsyncTask<Void, Void, Void>
{
private Dialog PD;
@Override
protected Void doInBackground(Void... params)
{
String s = et1.getText().toString();
int rate = ra1.getNumStars();
// opening database
SQLcon.open();
// insert data into table
SQLcon.insertData(com, rate);
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
loadtospinner();
PD.dismiss();
}
}
}
What I have tried:
i want to store the value of Edit text in to spinner. please give me the suggestion
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