我已经处理了几个星期了。我已经看过所有其他相关问题，但没有帮助。我正在尝试填充一个习惯ListView，但我一生都无法让它发挥作用。我会发布所有相关信息，希望有人能注意到我的错误。
活动布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:background="#000000">
<ListView
android:id="@+id/deviceListView"
android:layout_width="400px"
android:layout_height="fill_parent"
android:textColor="#ffffff"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"/>
</LinearLayout>
自定义行布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="#000000">
<TextView android:id="@+id/textId"
android:textSize="50sp"
android:text="ID"
android:textColor="#FFFFFF"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical">
<TextView android:id="@+id/textTimestamp"
android:textSize="16sp"
android:text="Timestamp"
android:textColor="#FFFFFF"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
android:layout_height="wrap_content"/>
<TextView android:id="@+id/textCoordinates"
android:textSize="16sp"
android:text="Coordinates"
android:textColor="#FFFFFF"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<TextView android:id="@+id/textDistance"
android:textSize="16sp"
android:text="Distance"
android:textColor="#FFFFFF"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</LinearLayout>
适配器型号：
public class DeviceList {
public static ArrayList<Device> list;
public static void loadModel(int quantity) {
ArrayList<Device> listTmp = new ArrayList<Device>();
for (int i = 0; i < quantity; i++) {
listTmp.add(new Device(System.currentTimeMillis(), i, new float[]{0, 0}, System.currentTimeMillis() / (i + 1)));
}
list = listTmp;
}
public static Device GetById(int id){
Device tmp = null;
for(Device device : list){
if (device.getID() == id){
tmp = device;
}
}
return tmp;
}
}
适配器：
public class DeviceArrayAdapter extends ArrayAdapter<Device> {
private Context context;
private int rowResourceId;
private String[] ids;
public DeviceArrayAdapter(Context context, int rowResourceId, String[] devices) {
super(context, rowResourceId);
this.context = context;
this.ids = devices;
this.rowResourceId = rowResourceId;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.device_row, parent, false);
TextView idTextview = (TextView) rowView.findViewById(R.id.textId);
TextView timeStampTextview = (TextView) rowView.findViewById(R.id.textTimestamp);
TextView coordinatesTextview = (TextView) rowView.findViewById(R.id.textCoordinates);
TextView distanceTextview = (TextView) rowView.findViewById(R.id.textDistance);
int id = Integer.parseInt(ids[position]);
timeStampTextview.setText(Long.toString(DeviceList.GetById(id).getTimestamp()));
idTextview.setText(DeviceList.GetById(id).getID());
coordinatesTextview.setText(DeviceList.GetById(id).getCoordinates()[0] + "," + DeviceList.GetById(id).getCoordinates()[1]);
distanceTextview.setText(DeviceList.GetById(id).getDistance() + "");
return rowView;
}
}
最后是 Activity 的 onCreate 方法：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// setContentView(R.layout.activity_main);
// ArrayList<Device> list = createDummyDeviceList(5);
DeviceList.loadModel(5);
String[] ids = new String[DeviceList.list.size()];
for (int i= 0; i < ids.length; i++){
ids[i] = Integer.toString(i+1);
}
ListView listView = (ListView) findViewById(R.id.deviceListView);
DeviceArrayAdapter adapter = new DeviceArrayAdapter(this, R.layout.device_row, ids);
listView.setAdapter(adapter);
}
注意：我很抱歉这样发帖，但我很绝望。我已经将它调试到最后一行，并且所有内容都已加载并且没有异常。但它只是不会填充。
[编辑]
连同选定的答案，我还有不同的编号数组和 ID。我生成的 id 从 1 开始，而不是 0。