java无法在listview中显示项目
我对安卓比较陌生,正在尝试在列表视图中显示一些统计数据。 根据微调器中选择的选项,将在我的StatsModel中生成一个列表。java类(其控制器为statcontroller.java)。我环顾四周,查看了其他有关获取ListView显示错误的问题,但我找不到解决问题的方法
以下是试图显示列表的活动的代码:
-我用祝酒来确保StatsModel中的列表实际上正在更新
-STC控制器。getCurrentList()从statsModel返回当前列表。爪哇
StatsActivity。爪哇
public class StatisticsActivity extends Activity {
//private TwoColStatsAdapter statsListAdapter;
private ArrayAdapter<String> statsListAdapter;
private String mClickerName;
private StatisticsController stController = new StatisticsController();
final ClickerListController clController = new ClickerListController();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_statistics);
Intent i = getIntent();
mClickerName = i.getStringExtra("clickerName");
stController.setClickDateList(clController.getClickers().get(mClickerName).getClickTimes());
stController.clearStats();
/*
* STATS_SPINNER ------------------------------------------------------------------------
*/
Spinner statsSpinner = (Spinner) findViewById(R.id.stats_spinner);
ArrayAdapter<CharSequence> spinnerAdapter = ArrayAdapter.createFromResource(getApplicationContext(),
R.array.stats_spinner, R.layout.stats_spinner_item);
spinnerAdapter.setDropDownViewResource(R.layout.stats_spinner_item);
statsSpinner.setAdapter(spinnerAdapter);
statsSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parentView,
View selectedItemView, int position, long id) {
stController.clearStats();
switch (position) {
case 1:
stController.setHourlyStatistics();
Toast.makeText(getApplicationContext(), stController.getCurrentList().get(0), Toast.LENGTH_SHORT).show();
break;
case 2:
stController.setDailyStatistics();
Toast.makeText(getApplicationContext(), stController.getCurrentList().get(0), Toast.LENGTH_SHORT).show();
break;
case 3:
stController.setWeeklyStatistics();
Toast.makeText(getApplicationContext(), stController.getCurrentList().get(0), Toast.LENGTH_SHORT).show();
break;
case 4:
stController.setMonthlyStatistics();
Toast.makeText(getApplicationContext(), stController.getCurrentList().get(0), Toast.LENGTH_SHORT).show();
break;
default:
break;
}
statsListAdapter.notifyDataSetChanged();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
/*
* STATS_LIST --------------------------------------------------------------------------
*/
final ListView statsList = (ListView) findViewById(R.id.ListView1);
/*statsListAdapter = new TwoColStatsAdapter(getApplicationContext(), R.layout.two_column_list, stController.getCurrentList());
statsList.setAdapter(statsListAdapter);
statsList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
}
});*/
statsListAdapter = new ArrayAdapter<String>(getApplicationContext(), 安卓.R.layout.simple_list_item_1, stController.getCurrentList());
statsList.setAdapter(statsListAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.statistics, menu);
return true;
}
}
活动统计。xml
<RelativeLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:paddingBottom="@dimen/activity_vertical_margin"
安卓:paddingLeft="@dimen/activity_horizontal_margin"
安卓:paddingRight="@dimen/activity_horizontal_margin"
安卓:paddingTop="@dimen/activity_vertical_margin"
tools:context=".StatisticsActivity" >
<Spinner
安卓:id="@+id/stats_spinner"
安卓:layout_width="match_parent"
安卓:layout_height="wrap_content"
安卓:layout_alignParentTop="true"
安卓:layout_centerHorizontal="true"
安卓:prompt="@string/stats_spinner_prompt"
安卓:textColor="#000" />
<ListView
安卓:id="@+id/ListView1"
安卓:layout_width="match_parent"
安卓:layout_height="wrap_content"
安卓:layout_below="@+id/stats_spinner"
安卓:layout_centerHorizontal="true" >
</ListView>
</RelativeLayout>
我不确定我在这里遗漏了什么,但我很好奇它是否与列表项被定义为函数stController这一事实有关。getCurrentList()。但我认为这不是问题所在,因为我已经尝试定义一个本地列表并让它获取currentlist,但它仍然没有显示所述列表。让我知道我错过了什么。。。谢谢
请随便告诉我其他地方
# 1 楼答案
尝试选择用于显示文本的ui元素: