Question

我有两个class.add和addmark。在添加类中，我将Id，name和phone no提交到数据库中。在addmark类中，当我从自动完成textview（从我通过add class提交的数据库）中选择一个名称时，我想在两个不同的文本视图中设置Id和phone no？

package as.d.d;

import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class add extends Activity implements OnClickListener{


    Button b1,b2;
    EditText e2,e3;
    TextView t1;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.add);

        b1=(Button)findViewById(R.id.button1);
        b2=(Button)findViewById(R.id.button2);
        e2=(EditText)findViewById(R.id.editText2);
        e3=(EditText)findViewById(R.id.editText3);
        t1=(TextView)findViewById(R.id.AtextView1);

        b1.setOnClickListener(this);
        b2.setOnClickListener(this);


        DatabaseHandler db = new DatabaseHandler(this);
        List<StudentInfo> studentInfo = db.getAllStudentInfo();

        for (StudentInfo cn : studentInfo){

            t1.setText("Id:"+(cn.getID()+1));
        }
   }

    @Override
    public void onClick(View v) {


        if(v==b2){
            startActivity(new Intent(add.this, FdActivity.class));
        }
        else if(v==b1){

            String s2=e2.getText().toString();
            String s3=e3.getText().toString();

            if(s2.trim().equals("")||s3.trim().equals("")){

                Toast.makeText(getApplicationContext(), "Please Submit Student Information",Toast.LENGTH_SHORT).show();

                }   

            else{
                DatabaseHandler db = new DatabaseHandler(this);
                Log.d("Insert: ", "Inserting ..");
                db.addContact(new StudentInfo(s2,s3));
                Log.d("Reading: ", "Reading all contacts..");
                List<StudentInfo> studentInfo = db.getAllStudentInfo();
                for (StudentInfo cn : studentInfo){
                    t1.setText("Id:"+(cn.getID()+1));
            }}}}}

.....

package as.d.d;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.TextView;
import android.widget.Toast;

public class addmark extends Activity{

    AutoCompleteTextView a1;
    TextView t1,t2;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.addmark);

        a1=(AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
        t1=(TextView)findViewById(R.id.amtextView1);
        t2=(TextView)findViewById(R.id.amtextView2);




        DatabaseHandler db = new DatabaseHandler(this);

        final List<StudentInfo> studentInfo = db.getAllStudentInfo();



        final ArrayList<String> s1 = new ArrayList<String>();


        for (StudentInfo cn : studentInfo) {
            s1.add(cn.getName());


        }
        ArrayAdapter<String> adapter =  new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line,s1); 

        a1.setThreshold(1); 
        a1.setAdapter(adapter);



        a1.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
}
        });

Answer 1

我认为这段代码会这样做

a1.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                String id =  studentInfo.get(arg2).getId();
                String phone = studentInfo.get(arg2).getPhone();
                t1.setText(id);
                t2.setText(phone);
           }
        });

在不同的textview中设置数据库值

1 个答案: