Json形式で画像を呼び出す

Question

サーバから通常のリストを取得できますが、画像を設定しようとしているときには、その「生成された画像を強制的に閉じる」ことができます。 jsonファイルはviewwd here.Aのバンドルを事前にありがとうございます。ここにコードがあります。ここで

public class Test extends ListActivity { 
     Prefs myprefs = null; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.listplaceholder); 
     this.myprefs = new Prefs(getApplicationContext()); 
     // install handler for processing gui update messages 
     ArrayList<HashMap<String, Object>> mylist = new ArrayList<HashMap<String, Object>>(); 
     JSONObject json = JSONfunctions.getJSONfromURL("http://midsweden.gofreeserve.com/proj/androidjson.php?identifier=" + 
     Test.this.myprefs.getPersonalno()); 

     try{ 

      JSONArray earthquakes = json.getJSONArray("services"); 

      for(int i=0;i<earthquakes.length();i++){       
       HashMap<String, Object> map = new HashMap<String, Object>(); 
       JSONObject e = earthquakes.getJSONObject(i); 

       map.put("id", e.getString("taskid")); 
       map.put("pic", "Service name : " + e.getString("employeepic")); 
       map.put("serviceinfo", "" + e.getString("employeename")+ " : "+ e.getString("starttime") 
         +" To " + e.getString("endtime")); 
        ImageView imgView=(ImageView)findViewById(R.id.image); 
       String imageBaseDirectory = "http://midsweden.gofreeserve.com/proj/admin/pictures"; 
       String imageName = e.getString("employeepic"); 
       imgView.setImageURI(Uri.parse(imageBaseDirectory+imageName)); 
        map.put("img",imageName); 
       mylist.add(map);    
      }  
     }catch(JSONException e)  { 
      Log.e("log_tag", "Error parsing data "+e.toString()); 
     } 

     SimpleAdapter adapter = new SimpleAdapter(this, mylist , R.layout.test,new String[] {"img", "servicename", "serviceinfo" }, 
         new int[] { R.id.image ,R.id.item_title, R.id.item_subtitle }); 

     setListAdapter(adapter); 

     final ListView lv = getListView(); 
     lv.setTextFilterEnabled(true); 
     lv.setOnItemClickListener(new OnItemClickListener() { 
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {    
       @SuppressWarnings("unchecked") 
       HashMap<String, String> o = (HashMap<String, String>) lv.getItemAtPosition(position);     
       Toast.makeText(Test.this, "ID '" + o.get("id") + "' was clicked.", Toast.LENGTH_SHORT).show(); 

      } 
     }); 

    } 

ここでは、XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:cacheColorHint="#55000000" 
    android:background="#55000000" 
    > 
     <ImageView 
     android:id="@+id/image" 
     android:layout_width="50dip" 
     android:layout_height="50dip" 
     android:scaleType="centerCrop"/> 
<TextView 

    android:id="@+id/item_title" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceMedium" 
    android:padding="2dp" 
    android:textSize="20dp" /> 
    <TextView 
    android:id="@+id/item_subtitle" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:padding="2dp" 
    android:textSize="18dp" /> 
</LinearLayout> 

はlogcat

07-06 01:09:18.409: WARN/dalvikvm(101): disableGcForExternalAlloc: true 
07-06 01:09:18.409: INFO/ActivityManager(101): Starting activity: Intent { cmp=com.droidnova.android.howto.optionmenu/.Test } 
07-06 01:09:18.449: WARN/dalvikvm(101): disableGcForExternalAlloc: false 
07-06 01:09:19.009: DEBUG/dalvikvm(16327): GC freed 2412 objects/190240 bytes in 105ms 
07-06 01:09:20.829: DEBUG/ImagesWidgetProvider(16291): OnReceive:Action: android.appwidget.action.APPWIDGET_UPDATE 
07-06 01:09:20.829: DEBUG/ImagesWidgetProvider(16291): onUpdate(): 
07-06 01:09:21.329: DEBUG/AndroidRuntime(16327): Shutting down VM 
07-06 01:09:21.329: WARN/dalvikvm(16327): threadid=3: thread exiting with uncaught exception (group=0x4001e390) 
07-06 01:09:21.329: ERROR/AndroidRuntime(16327): Uncaught handler: thread main exiting due to uncaught exception 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.droidnova.android.howto.optionmenu/com.droidnova.android.howto.optionmenu.Test}: java.lang.NullPointerException 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread.access$2200(ActivityThread.java:126) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1932) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.os.Handler.dispatchMessage(Handler.java:99) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.os.Looper.loop(Looper.java:123) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread.main(ActivityThread.java:4595) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at java.lang.reflect.Method.invokeNative(Native Method) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at java.lang.reflect.Method.invoke(Method.java:521) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at dalvik.system.NativeStart.main(Native Method) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327): Caused by: java.lang.NullPointerException 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at com.droidnova.android.howto.optionmenu.Test.onCreate(Test.java:56) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
07-06 01:09:21.339: ERROR/AndroidRuntime(16327):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544) 

Answer 1

2つの可能性である：

• eは何の要素キー 'employeepic'
を持っていません
• Rididimageはありません

コードがどのようにレイアウトされているかは分かりません。