我試圖添加一個ListView到我的MainActivity,但我不知道它爲什麼不出現在應用程序中。簡單的ListView作爲片段不會出現
我創建了一個名爲「list_item_forecast.xml」的新佈局資源文件 - 我在那裏放置了一個帶有id:「list_item_forecast_textview」的TextView。
在 「content_main.xml」 我有ListView控件:
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/listview_forecast" />
然後,我有這個類在我的MainActivity類別:
public static class PlaceholderFragment extends Fragment{
ArrayAdapter<String> mForecastAdapter;
public PlaceholderFragment(){
}
@TargetApi(Build.VERSION_CODES.M)
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.content_main, container,false);
String[] forecastArray = {
"Heute - Sonnig - 34°",
"Morgen - Sonnig - 30°",
"Montag - Regen - 10°",
"Dienstag - Bewölkt - 20°",
"Mittwoch - Schnee - 10°",
"Donnerstag - Schnee - 15°",
"Freitag - Sonne - 33°"
};
List<String> weekForecast = new ArrayList<String>(Arrays.asList(forecastArray));
mForecastAdapter = new ArrayAdapter<String>(getContext(), R.layout.list_item_forecast, R.id.list_item_forecast_textview, weekForecast);
ListView listView = (ListView) rootView.findViewById(
R.id.listview_forecast);
listView.setAdapter(mForecastAdapter);
return rootView;
}
}
這裏是整個項目: https://github.com/Zaniyar/sunshine/tree/master/app/src/main
您可以添加將代碼片段添加到活動的代碼嗎? –
eeehm你如何做到這一點? 這是整個代碼:https://github.com/Zaniyar/sunshine/blob/master/app/src/main/java/ch/choix/sunshine/MainActivity.java – Suisse
你永遠不會對你的新片段做任何事情。 http://stackoverflow.com/a/28208203/2308683 –