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我創建了一個可以顯示呼叫日誌的應用程序。我正在使用LazyAdapter
類。我根據通話類型顯示一個圖標:Missed
/Incoming
/Outgoing
。這部分工作不正常。除了呼叫類型之外,像姓名,電話號碼,日期和時間這樣的文本的顯示方式顯示得很好?呼叫日誌的懶惰適配器
這裏是我想要做的事:
public class LazyAdapter extends BaseAdapter
{
private Activity activity;
private ArrayList<HashMap<String, String>> data;
private static LayoutInflater inflater=null;
public LazyAdapter(Activity a, ArrayList<HashMap<String, String>> d)
{
activity = a;
data=d;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount()
{
return data.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
View vi=convertView;
if(convertView==null)
vi = inflater.inflate(R.layout.callist, null);
TextView name = (TextView)vi.findViewById(R.id.name);
TextView number = (TextView)vi.findViewById(R.id.phone_number);
TextView date = (TextView)vi.findViewById(R.id.date);
TextView time = (TextView)vi.findViewById(R.id.time);
TextView duration = (TextView)vi.findViewById(R.id.duration);
ImageView callType = (ImageView)vi.findViewById(R.id.calType);
ImageView clock = (ImageView)vi.findViewById(R.id.Clock);
HashMap<String, String> pro = new HashMap<String, String>();
pro = data.get(position);
if((pro.get(ListOfCall.contactName)!=null))
{
name.setText(pro.get(ListOfCall.contactName));
}
else
{
name.setText("Unknown");
}
number.setText(pro.get(ListOfCall.phone));
date.setText(pro.get(ListOfCall.DateOfCall));
time.setText(pro.get(ListOfCall.TimeOfCall));
String type = pro.get(ListOfCall.typeofCall);
if(type.equalsIgnoreCase("OUTGOING"))
{
callType.setImageResource(R.drawable.outgoing);
duration.setText(pro.get(ListOfCall.durationOfCall));
}
else if(type.equalsIgnoreCase("INCOMING"))
{
callType.setImageResource(R.drawable.incoming);
duration.setText(pro.get(ListOfCall.durationOfCall));
}
else if(type.equalsIgnoreCase("MISSED"))
{
callType.setImageResource(R.drawable.missed);
duration.setVisibility(4);
clock.setVisibility(4);
}
return vi;
}
}
我真的不知道哪裏出了問題來了,因爲我能夠獲得在頂部的arraylist
稱爲數據正確的結果。當我將數組列表移動到名爲pro的Hashmap
時,情況會發生變化。
再次,除了呼叫類型,值都會正常出現,並且相應的圖像不會出現。
有人可以幫我解決這個問題嗎?