小编Par*_*shi的帖子

我有一个ArrayList,其中包含[ann,john]形式的值.我想将此ArrayList转换为{"ann","john"}形式的String数组.

我该怎么做？

我的Android代码:

     final Button markabsent = (Button) findViewById(R.id.Button02);
      markabsent.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {

            // Perform action on click
             Toast.makeText(display.this,"You have marked the students absent",Toast.LENGTH_SHORT).show();

             SparseBooleanArray checkedabsent = lView.getCheckedItemPositions();



            for (int i = 0; i < arr2.length; i++) 
            {
                if (checkedabsent.get(i)) 
                {
                    items2.add(arr2[i]);
                    System.out.println(items2);

                }
            }

            Log.d("", "items:");
            for (String string : items2)
            {
                Log.d("string is", string);


            }  
          }
      });  

我的Logcat:

     11-10 21:44:00.414: INFO/System.out(2316): [ann, john, ann]
     11-10 21:44:00.414: DEBUG/(2316): items:
     11-10 21:44:00.414: DEBUG/string is(2316): ann
     11-10 …

我在.NET中使用SOAP Web服务返回了一个JSON字符串.它如下:

{
 "checkrecord":
   [
     {
      "rollno":"abc2",
      "percentage":40,
      "attended":12,
      "missed":34
     }
  ],
 "Table1":[]
}

现在我想将此字符串解析为JSON对象.我也看了这个,他们已经用这行代码:

JObject jsonObj = JObject.Parse(json);

所以我可以通过用我的字符串名称替换"json"来做同样的事情.我还需要引用除NewtonSoft.dll之外的任何其他DLL吗？

BTW,这是完整的Web服务代码

我创建了如下Firebase数据

tasks
-K1NRz9l5PU_0R8ltgXz
   Description: "test1"
   Status: "PENDING"
 -K1NRz9l5PU_0CFDtgXz
   Description: "test2"
   Status: "PENDING"

我需要将第二个对象的状态从PENDING更新为COMPLETED.我正在使用该updateChildren方法,但它为任务子项添加了一个新节点.

如何在不创建新节点的情况下更新第二个节点的状态？

这是我现在的代码,

//在按钮上单击侦听器

  {

    Firebase m_objFireBaseRef = new Firebase(AppConstants.FIREBASE_URL);        
    final Firebase objRef = m_objFireBaseRef.child("tasks");    
    Map<String,Object> taskMap = new HashMap<String,Object>();
    taskMap.put("Status", "COMPLETED");
    objRef.updateChildren(taskMap); //should I use setValue()...?

 });

我想创建一个CustomButton具有预定义的onClick.事实上,我的目标是做同样的工作

CustomButton mButton = getViewById(..);
mButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
  show_something()
}

有没有办法将其嵌入Listener从Button继承的CustomButton对象？我想要的是CustomButton在我的布局XML文件中创建一个,而不必在我的活动中提到这个按钮,这将给出:

main.xml中:

<LinearLayout xmlns:"...">
     <com.mypackage.view.CustomButton
         (attributes)/>
</LinearLayout>

CustomButton.java:

class CustomButton extends Button implements... {

@Override
OnClick (or something like that, that's the core of my question, what to put here)
}

myActivity.java

public class myActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    } …

我有一个使用.NET框架实现的SOAP Web服务(.asmx),它以这种形式返回一个JSON字符串:

{ "checkrecord":[{ "rollno": "ABC2", "百分比":40, "出席":12, "遗漏":34}], "表1":[]}

现在在我的Android应用程序中,我使用kso​​ap以下列方式调用Web服务:

    public String getjsondata(String b)
{       

     String be=""; 

        SoapObject request = new SoapObject(namespace, method_NAME);      
        request.addProperty("rollno",b);

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
        envelope.dotNet = true; 
        envelope.setOutputSoapObject(request);

        HttpTransportSE  android = new HttpTransportSE(url);

        android.debug = true; 

 try 
 {

    //android.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");   
    android.call(soap_ACTION, envelope);

    SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
    Log.i("myapp",result.toString());
    System.out.println(" --- response ---- " + result); 
    be=result.toString();

    if (be.startsWith("[")) 
    { // if JSON string is an array
        JSONArr = new JSONArray(be);

        System.out.println("length" + JSONArr.length());
        for …

我试图建立一个custom browser与WebView采用Android API level 10(SDK 2.3.3),不幸的是我不知道如何从拦截请求webpage以打开新的浏览器窗口的URL,像与链接水龙头target="_blank".

在与符合API Doc我已经覆盖了onCreateWindow的WebChromeClient,但是当这样的链接被点击不叫.可能是这个API级别的错误？我还要shouldOverrideUrlLoading完全避免WebView在内置浏览器中打开后续链接.

这是我打开的示例代码google.com.要测试它,请点按"新闻",然后点按任何新闻标题.Android内置浏览器通常以新的方式打开它browser window.

package com.myexample;

import android.app.Activity;
import android.os.Bundle;
import android.os.Message;
import android.util.Log;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

public class HelloAndroidActivity extends Activity {

  private static String TAG = "WebViewTest";
  private WebView mWebView;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i(TAG, "onCreate");
    setContentView(R.layout.main);

    mWebView = (WebView) findViewById(R.id.mywebview); …