listview と SherlockActivity の使用に問題があります。私の問題は、この行でnullになっていることです:
ListView lv = (ListView) findViewById(R.id.mainListView );
私のxmlは次のようになります:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearLa"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ListView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/mainListView">
<ImageView
android:id="@+id/iconremove"
android:layout_width="50dip"
android:layout_height="50dip"
android:scaleType="centerCrop"
android:src="@drawable/removeicon"
android:visibility="gone"
/>
<TextView
android:id="@+id/textView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:layout_marginLeft="10dip"
android:layout_weight="1"
android:textSize="20dip" />
</ListView>
</LinearLayout>
私のコードは次のようになります。
public class ListRss extends SherlockActivity {
ActionBar actionbar;
@SuppressWarnings("unchecked")
public ArrayList<rssLinkAndTitle> ListRssLinkAndTitle=new ArrayList();
//public ArrayList listValue=new ArrayList();
RssArrays rssparser=new RssArrays();
Context con;
@SuppressWarnings("unchecked")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
actionbar=getSupportActionBar();
con=getApplicationContext();
ListRssAdpter listAdapter;
// ListView lv = getListView();
ListView lv = (ListView) findViewById(R.id.mainListView );
助けてくれてありがとう!
更新しました:
これを追加しました
super.onCreate(savedInstanceState);
setContentView(R.layout.titlesrss);
エラーは次の行にあります。
11-17 07:57:46.341: E/AndroidRuntime(481): FATAL EXCEPTION: main
11-17 07:57:46.341: E/AndroidRuntime(481): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.rss/com.example.rss.ListRss}: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.os.Handler.dispatchMessage(Handler.java:99)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.os.Looper.loop(Looper.java:123)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.main(ActivityThread.java:3683)
11-17 07:57:46.341: E/AndroidRuntime(481): at java.lang.reflect.Method.invokeNative(Native Method)
11-17 07:57:46.341: E/AndroidRuntime(481): at java.lang.reflect.Method.invoke(Method.java:507)
11-17 07:57:46.341: E/AndroidRuntime(481): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-17 07:57:46.341: E/AndroidRuntime(481): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-17 07:57:46.341: E/AndroidRuntime(481): at dalvik.system.NativeStart.main(Native Method)
11-17 07:57:46.341: E/AndroidRuntime(481): Caused by: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
11-17 07:57:46.341: E/AndroidRuntime(481): at android.widget.AdapterView.addView(AdapterView.java:461)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.rInflate(LayoutInflater.java:627)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
11-17 07:57:46.341: E/AndroidRuntime(481): at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:853)
11-17 07:57:46.341: E/AndroidRuntime(481): at com.actionbarsherlock.app.SherlockActivity.setContentView(SherlockActivity.java:229)
11-17 07:57:46.341: E/AndroidRuntime(481): at com.example.rss.ListRss.onCreate(ListRss.java:54)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
11-17 07:57:46.341: E/AndroidRuntime(481): ... 11 more