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我有一个活动,它从先前的活动中获取数据(arraylist),并通过自定义适配器将其置于listview中。在这个自定义适配器中,我声明了一个textview(显示数据)并为每一行添加一个数字选择器。在列表视图(自定义适配器)中检索NumberPicker的值
我希望用户能够选择一个数字(带有numberpicker),当他完成后,点击一个按钮(fini),在textview中显示带有其数字选择器值的数据。 我的活动代码(choozQr3.java):
public class ChoozQr3 extends Activity {
Button fini;
ListView lv;
TextView logQr;
Context context;
ChoozQr3Adapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.choozqr_step3);
fini = (Button) findViewById(R.id.fini);
lv = (ListView) findViewById(R.id.listView1);
logQr = (TextView) findViewById(R.id.textView2);
Bundle b = getIntent().getExtras();
String[] sTemp = b.getStringArray("arrangedItems");
ArrayList<String> resultArr = new ArrayList<String>(Arrays.asList(sTemp));
adapter = new ChoozQr3Adapter(this, R.layout.choozqr_step3_textview, resultArr);
lv.setAdapter(adapter);
lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
fini.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//ArrayList<String> finalItems = new ArrayList<String>();
for (int i = 0; i < adapter.getCount(); i++) {
Toast.makeText(getApplicationContext(),i+". " +adapter.getItem(i).toString(),Toast.LENGTH_LONG).show();
//finalItems.add(adapter.getItem(i).toString());
}
}
}
);
}
}
这里是我的customadapter的代码:与适配器
public class ChoozQr3Adapter extends ArrayAdapter<String>{
private final List<String> list;
public ChoozQr3Adapter(Context context, int resource, List<String> items) {
super(context, resource, items);
list = items;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi;
vi = LayoutInflater.from(getContext());
v = vi.inflate(R.layout.choozqr_step3_textview, parent, false);
//ContentValues cv = new ContentValues();
}
TextView tvNomDuQr=(TextView)v.findViewById(R.id.NomQr);
NumberPicker npNbJours=(NumberPicker)v.findViewById(R.id.numberPickerOccurence);
tvNomDuQr.setText(list.get(position));
npNbJours.setMaxValue(365);
npNbJours.setMinValue(1);
npNbJours.setValue(1);
npNbJours.setWrapSelectorWheel(true);
return v;
}
}
和XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="6dip"
android:paddingTop="4dip" >
<TextView
android:id="@+id/NomQr"
android:layout_width="400dp"
android:layout_height="80dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:gravity="center_vertical"
android:paddingLeft="6dip"
android:textAppearance="?android:attr/textAppearanceLarge" />
<NumberPicker
android:id="@+id/numberPickerOccurence"
android:layout_width="wrap_content"
android:layout_height="80dp"
android:layout_alignTop="@+id/NomQr"
android:layout_marginLeft="20dp"
android:layout_toLeftOf="@+id/textView1"
android:orientation="horizontal" />
<TextView
android:id="@+id/textView1"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:gravity="center_vertical"
android:paddingLeft="6dip"
android:text="jours"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
到现在为止,我设法通过setOnItemClickListener来完成此操作(来自activity choozQr3.java):
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> arg0, View v,int position, long arg3){
// when user clicks on ListView Item , onItemClick is called
// with position and View of the item which is clicked
// we can use the position parameter to get index of clicked item
TextView tvNomDuQr=(TextView)v.findViewById(R.id.NomQr);
NumberPicker npNbJours=(NumberPicker)v.findViewById(R.id.numberPickerOccurence);
String NomDuQr=tvNomDuQr.getText().toString();
Integer NbJours=npNbJours.getValue();
// Show The result
Toast.makeText(getApplicationContext(),"répéter "+NbJours+" fois le questionnaire "+NomDuQr,Toast.LENGTH_LONG).show();
}
});
但我不知道如何修改我的fini.setOnClickListener()来实现同样的结果... 任何帮助将不胜感激......
按钮处于活动和TextView的是适配器,以便当u点击活动按钮,在适配器中所有textviews挑选有值,并显示在textvew是这款U想achive? – KOTIOS 2015-03-13 10:40:14
@Diva并非如此:活动中有一个textview(logQr)。我想将(numberpicker的数据+值)发送到该文本视图。我知道如何获得数据,但我不知道如何引用numberpicker的值... – 2015-03-13 11:09:03