我想将网站上的屏幕抓取信息填充到自定义列表中，我已使用此网站的jsoup解析数据：
www.soccerway.com
但我无法启动我的应用程序，这会导致运行时异常，这里是代码和错误跟踪：
public class ScoresActivity extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.scoresactivity);
setListAdapter(new MyAdapter(this, android.R.layout.simple_list_item_1, R.id.textViewhometeam,
getResources().getStringArray(R.array.pls)));
final ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
//int pos = lv.getSelectedItemPosition();
//if(pos == 0){
//Intent intent = new Intent(Legends.this, l1.class);
//startActivity(intent);
//}
}
});
}
public class MyAdapter extends ArrayAdapter<String>{
public MyAdapter(Context context, int resource, int textViewResourceId,
String[] strings) {
super(context, textViewResourceId, strings);
// TODO Auto-generated constructor stub
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.list_item3, parent, false);
//String[] items = getResources().getStringArray(R.array.legends);
TextView tv1 = (TextView) row.findViewById(R.id.textViewhometeam);
TextView tv2 = (TextView) row.findViewById(R.id.textViewfinalscore);
TextView tv3 = (TextView) row.findViewById(R.id.textViewawayteam);
Document doc;
try {
doc = (Document) Jsoup.connect("http://www.soccerway.com/teams/saudi-arabia/al-nasr-riyadh/matches/").get();
Elements team_a = ((Element) doc).select("td.team-a");
for (Element e : team_a) {
CharSequence ta = e.text();
tv1.setText(ta);
//System.out.println("team a is: " + ta);
}
Elements team_b = ((Element) doc).select("td.team-b");
for (Element e : team_b) {
CharSequence tb = e.text();
tv3.setText(tb);
//System.out.println("team b is: " + tb);
}
Elements result = ((Element) doc).select("td.score");
for (Element e : result) {
CharSequence re = e.text();
tv2.setText(re);
//System.out.println("score is: " + re);
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
return row;
}
}
}
scoresactivity.xml只是一个列表视图 list_item3.xml是我的自定义列表，它只包含主队，客场球队和得分的3个文本视图。
这是错误：
11-09 02:33:24.379: ERROR/AndroidRuntime(325): FATAL EXCEPTION: main
11-09 02:33:24.379: ERROR/AndroidRuntime(325): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nassr.alnassrfc/com.nassr.alnassrfc.Main}: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost'
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.os.Handler.dispatchMessage(Handler.java:99)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.os.Looper.loop(Looper.java:123)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at java.lang.reflect.Method.invokeNative(Native Method)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at java.lang.reflect.Method.invoke(Method.java:521)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at dalvik.system.NativeStart.main(Native Method)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): Caused by: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost'
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.TabActivity.onContentChanged(TabActivity.java:105)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:201)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.Activity.setContentView(Activity.java:1647)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at com.nassr.alnassrfc.Main.onCreate(Main.java:19)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
11-09 02:33:24.379: ERROR/AndroidRuntime(325): ... 11 more
11-09 02:33:24.399: WARN/ActivityManager(59): Force finishing activity com.nassr.alnassrfc/.Main
11-09 02:33:24.899: WARN/ActivityManager(59): Activity pause timeout for HistoryRecord{45073020 com.nassr.alnassrfc/.Main}
11-09 02:33:26.921: WARN/InputManagerService(59): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@450773b8
这是我的Main类扩展TabActivity并使用TabHost
public class Main extends TabActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custome_title);
Resources res = getResources();
TabHost tabHost = (TabHost) findViewById(android.R.id.tabhost);
TabHost.TabSpec spec;
Intent intent; // Reusable Intent for each tab
tabHost.getTabWidget();
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, ClubActivity.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("club").setIndicator("",
res.getDrawable(R.drawable.ic_tab_alnassr))
.setContent(intent);
tabHost.addTab(spec);
// Do the same for the other tabs
intent = new Intent().setClass(this, ScoresActivity.class);
spec = tabHost.newTabSpec("scores").setIndicator("",
res.getDrawable(R.drawable.ic_tab_alnassr1))
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, TableActivity.class);
spec = tabHost.newTabSpec("table").setIndicator("",
res.getDrawable(R.drawable.ic_tab_alnassr2))
.setContent(intent);
tabHost.addTab(spec);
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, MessageList.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("News").setIndicator("",
res.getDrawable(android.R.drawable.star_on))
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, YoutubeActivity.class);
spec = tabHost.newTabSpec("youtube").setIndicator("",
res.getDrawable(R.drawable.ic_tab_alnassr3))
.setContent(intent);
tabHost.addTab(spec);
tabHost.setCurrentTab(0);
}
} 谢谢你们。
答案 0 :(得分：1)
从日志中可以清楚地看出，你的活动com.nassr.alnassrfc.Main无法加载，因为它期望android.R.id.tabhost用于tabhost。我会检查你的com.nassr.alnassrfc.Main的布局和活动。该活动是否扩展了tabhost，如果它为什么布局中没有tabhost？
我认为您发布的代码与错误无关。