用于查询的 EditText 与 JSON 结果的组合显示，以便能够滚动它

Question

需要有关如何定义屏幕以能够滚动 json 结果的建议，如附件：

package com.lm.vciwhereabout;


import java.util.ArrayList;

import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

  public class querynameentry3 extends ListActivity {
       EditText username;   // To take username as input from user
       Button submit;    
       TextView tv;      // TextView to show the result of MySQL query 

       String returnString;   // to store the result of MySQL query after decoding JSON

          /** Called when the activity is first created. */
          public void onCreate(Bundle savedInstanceState) 
        {
           StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
        .detectDiskReads().detectDiskWrites().detectNetwork() // StrictMode is most commonly used to catch accidental disk or network

access on the application's main thread .penaltyLog().build()); super.onCreate(savedInstanceState); setContentView(R.layout.activity_jsonuse);

              setListAdapter(new ArrayAdapter<String>(this,
                      android.R.layout.simple_list_item_1));

              username = (EditText) findViewById(R.id.edtxUsername);
              submit = (Button) findViewById(R.id.btnsubmit);
              tv = (TextView) findViewById(R.id.showresult);

              // define the action when user clicks on submit button
              submit.setOnClickListener(new View.OnClickListener()
              {        
               public void onClick(View v) 
               {
                // declare parameters that are passed to PHP script i.e. the name "username" and its value submitted by user   
                ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();

                // define the parameter
                postParameters.add(new BasicNameValuePair("username",
            username.getText().toString()));
                String response = null;

                // call executeHttpPost method passing necessary parameters 
                try 
                {
           response = CustomHttpClient.executeHttpPost(
             "http://192.168.0.245/vciwhereabout/waboutbyuser.php", // your ip address if using localhost server
             postParameters);

           // store the result returned by PHP script that runs MySQL query
           String result = response.toString();  

            //parse json data

               try{
                       returnString = "";
                 JSONArray jArray = new JSONArray(result);
                       for(int i=0;i<jArray.length();i++){
                               JSONObject json_data = jArray.getJSONObject(i);
                               Log.i("log_tag","post_id: "+json_data.getInt("post_id")+

                                       ", username: "+json_data.getString("username")+
                                       ", fdate: "+json_data.getString("fdate")+
                                       ", tdate: "+json_data.getString("tdate")+
                                       ", ftime: "+json_data.getString("ftime")+
                                       ", ttime: "+json_data.getString("ttime")+
                                       ", custbranch: "+json_data.getString("custbranch")+
                                       ", custname: "+json_data.getString("custname")+
                                       ", custaddr: "+json_data.getString("custaddr")+
                                       ", custcity: "+json_data.getString("custcity")+
                                       ", note: "+json_data.getString("note")
                               );

                               //Get an output to the screen

                               returnString += "Username  :" + json_data.getString("username")
                                   + "\n" + "From Date :" + json_data.getString("fdate") 
                               + "\n" + "To Date     :" + json_data.getString("tdate") 
                               + "\n" + "From Time :" + json_data.getString("ftime") 
                               + "\n" + "To Time     :" + json_data.getString("ttime") 
                               + "\n" + "Cust/Branch :" + json_data.getString("custbranch") 
                               + "\n" + "Name        :" + json_data.getString("custname") 
                               + "\n" + "Address    :" + json_data.getString("custaddr") 
                               + "\n" + "City           :" + json_data.getString("custcity")
                               + "\n" + "Note          :" + json_data.getString("note") + "\n"
                               + "-------------------------------------------"  ;

                                                           }
                   }
               catch(JSONException e){
                       Log.e("log_tag", "Error parsing data "+e.toString());
                                      }

               try{
                tv.setText(returnString);
                   }
               catch(Exception e){
                Log.e("log_tag","Error in Display!" + e.toString());;          
                                  }   
               }
                catch (Exception e) {
           Log.e("log_tag","Error in http connection!!" + e.toString());     
                                     }
               }         
              });
          }

          private void setListAdapter(ArrayAdapter<String> arrayAdapter) {
              // TODO Auto-generated method stub

          }

      }

这是布局 activity_jsonuse.xml :

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="Staff Name to be Query" />


<EditText
    android:id="@+id/edtxusername"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="text" >        
</EditText>

<Button
    android:id="@+id/submit"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Submit"
    android:layout_gravity="center"
     />

    <TextView
    android:id="@+id/showresult"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="Result" />

  <ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
     />          </LinearLayout>

在将输出输出到屏幕时，如何定义/更改它以便滚动结果？

因为我已经用 edittext 定义了查询的布局，我是否可以制作或调用新布局来仅显示具有滚动功能的结果（在一个 .java 活动中）？请帮助指导我上面的代码。

非常感谢（我是 Android 和编程方面的新手）。

加上附件中的scrollview，解决了。但是显示结果后虚拟键盘仍然出现。结果出现在屏幕上后，如何自动删除虚拟键盘？谢谢。

<ScrollView
>     android:layout_width="fill_parent"
>     android:lines="20"
>     android:layout_height="390dip" >        
>            <TextView
>         android:id="@+id/showresult2"
>         android:layout_width="fill_parent"
>         android:layout_height="wrap_content"
>         android:singleLine="false"
>         android:textAppearance="?android:attr/textAppearanceLarge"
>   
>         android:paddingBottom="2dip"
>         android:paddingLeft="45dip"
>         android:textColor="#5d5d5d"
>        
>         />
>   
>            </ScrollView>

Answer 1

添加了附件中的滚动视图，解决了我的问题。

<ScrollView
>     android:layout_width="fill_parent"
>     android:lines="20"
>     android:layout_height="390dip" >        
>            <TextView
>         android:id="@+id/showresult2"
>         android:layout_width="fill_parent"
>         android:layout_height="wrap_content"
>         android:singleLine="false"
>         android:textAppearance="?android:attr/textAppearanceLarge"
>   
>         android:paddingBottom="2dip"
>         android:paddingLeft="45dip"
>         android:textColor="#5d5d5d"
>        
>         />
>   
>            </ScrollVi

新>

用于查询的 EditText 与 JSON 结果的组合显示，以便能够滚动它

Combined display of EditText for Query with JSON Result to be able to scroll it

arrays

json

android-edittext

scrollview