我正在尝试创建List
具有 aTextView
和 a 的 a Spinner
。TextView
和的数据Spinner
来自数组或 JSON。我有以下文件:
主要活动:
public class ListViewTestActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String coba="tes";
ListView listView = (ListView) findViewById(R.id.listView1);
DataHolder data = new DataHolder(this);
DataHolder data1 = new DataHolder(this);
DataHolder data2 = new DataHolder(this);
DataHolder data3 = new DataHolder(this);
DataHolder data4 = new DataHolder(this);
DataHolder data5 = new DataHolder(this);
DataAdapter d = new DataAdapter(this, R.layout.rowview, new DataHolder[] { data, data1, data2, data3, data4, data5 });
listView.setAdapter(d);
}
}
数据持有者类:
public class DataHolder {
private int selected;
private String name;
private ArrayAdapter<CharSequence> adapter;
String[] count={"0","1","2","3","4","5","6","7","8","9","10"};
public DataHolder(Context parent) {
//adapter = ArrayAdapter.createFromResource(parent, R.array.choices , android.R.layout.simple_spinner_item);
//adapter= new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,count);
//this.name="tes";
adapter = new ArrayAdapter<CharSequence>(parent, android.R.layout.simple_spinner_item, count);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public ArrayAdapter<CharSequence> getAdapter() {
return adapter;
}
public String getText() {
return (String) adapter.getItem(selected);
}
public int getSelected() {
return selected;
}
public void setSelected(int selected) {
this.selected = selected;
}
}
数据适配器类:
public class DataAdapter extends ArrayAdapter<DataHolder> {
private Activity myContext;
String tes="makanan";
public DataAdapter(Activity context, int textViewResourceId, DataHolder[] objects) {
super(context, textViewResourceId, objects);
myContext = context;
}
// We keep this ViewHolder object to save time. It's quicker than findViewById() when repainting.
static class ViewHolder {
protected DataHolder data;
protected TextView text;
protected Spinner spin;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
// Check to see if this row has already been painted once.
if (convertView == null) {
// If it hasn't, set up everything:
LayoutInflater inflator = myContext.getLayoutInflater();
view = inflator.inflate(R.layout.rowview, null);
// Make a new ViewHolder for this row, and modify its data and spinner:
final ViewHolder viewHolder = new ViewHolder();
viewHolder.text = (TextView) view.findViewById(R.id.text);
viewHolder.data = new DataHolder(myContext);
viewHolder.spin = (Spinner) view.findViewById(R.id.spin);
viewHolder.spin.setAdapter(viewHolder.data.getAdapter());
// Used to handle events when the user changes the Spinner selection:
viewHolder.spin.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
viewHolder.data.setSelected(arg2);
viewHolder.text.setText(viewHolder.data.getText());
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
// Update the TextView to reflect what's in the Spinner
viewHolder.text.setText(tes);
view.setTag(viewHolder);
Log.d("DBGINF", viewHolder.text.getText() + "");
} else {
view = convertView;
}
// This is what gets called every time the ListView refreshes
ViewHolder holder = (ViewHolder) view.getTag();
holder.text.setText(getItem(position).getText());
holder.spin.setSelection(getItem(position).getSelected());
return view;
}
}
主要.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:id="@+id/listView1"
android:layout_height="match_parent"
android:layout_width="match_parent" />
</LinearLayout>
行视图.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="wrap_content" android:weightSum="1">
<TextView android:layout_width="wrap_content"
android:layout_height="match_parent" android:id="@+id/text"
android:layout_weight="0.5" android:textSize="25sp" />
<Spinner android:layout_width="0dp" android:layout_height="wrap_content"
android:id="@+id/spin"
android:prompt="@string/choice_prompt"
android:layout_weight="0.5" />
</LinearLayout>
我的问题是我无法更改TextView
数组的 with 数据,并获取该Spinner
and的值TextView
。我该怎么做呢?