当我选择搜索方法时，我无法让我的主Spinner更新ui。
在我将应用程序切换到片段的使用之前，我已经完成了所有工作。
非常感谢任何帮助。
OrderLookUpver2.java
package net.***.android.COA;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.Toast;
import java.util.List;
import static net.***.android.COA.R.id.spOrderSearchTopic;
public class OrderLookUpver2 extends FragmentActivity {
private FragmentActivity myContext;
android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public static class YourFragment extends Fragment implements AdapterView.OnItemSelectedListener,View.OnClickListener {
private final String TAG = YourFragment.class.getSimpleName();
Spinner SpnrOrderTopic;
Spinner SpnrSearchByCustomer;
Spinner SpnrSearchByEvent;
LinearLayout LL;
EditText SearchByField;
Button bLast50, bPending, bSearch, bClear;
List<String> Label = null;
int mNum;
String inputText = "";
String SearchString = "";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i("SwA", "HERE" );
if(savedInstanceState != null) {
mNum = savedInstanceState.getInt("number");
} else {
mNum = 25;
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
Log.d(TAG, "onActivityCreated");
if(savedInstanceState != null) {
Log.d(TAG, "saved variable number: " + savedInstanceState.getInt("number"));
}
super.onActivityCreated(savedInstanceState);
}
@Override
public void onSaveInstanceState(Bundle outState) {
Log.d(TAG, "onSaveInstanceState saving: " + mNum);
outState.putInt("number", mNum);
super.onSaveInstanceState(outState);
}
public YourFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
int fragmentLayout = getArguments().getInt("fragmentLayout");
View rootView = inflater
.inflate(R.layout.orderlookupver2, container, false);
LL = (LinearLayout)rootView. findViewById(R.id.ll1);
SearchByField = (EditText)rootView. findViewById(R.id.etSearchByField);
bLast50 = (Button)rootView. findViewById(R.id.bLast50Orders);
bPending = (Button)rootView. findViewById(R.id.bPendingOrders);
bSearch = (Button)rootView. findViewById(R.id.bSearchOrders);
bClear = (Button)rootView. findViewById(R.id.bClearOrderSearch);
SpnrOrderTopic = (Spinner)getView().findViewById(spOrderSearchTopic);
SpnrSearchByEvent = (Spinner)getView(). findViewById(R.id.spSearchByEvent);
SpnrSearchByCustomer = (Spinner)getView(). findViewById(R.id.spSearchByCustomer);
// Initialize the Buttons, EditText and Spinner
Log.d("SwA", "onCreateView");
// Populate Spinners
// Populate Topic Spinner
// Link XML with Java
SpnrOrderTopic = (Spinner)rootView.findViewById(R.id.spOrderSearchTopic);
// Create an ArrayAdapter using the string array and a default spinner
// layout
ArrayAdapter<CharSequence> adapterTopic = ArrayAdapter
.createFromResource(getActivity(), R.array.order_search_array,
android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapterTopic
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
SpnrOrderTopic.setAdapter(adapterTopic);
// Populate Topic Spinner
// Link XML with Java
SpnrSearchByEvent = (Spinner)rootView.findViewById(R.id.spSearchByEvent);
// Create an ArrayAdapter using the string array and a default spinner
// layout
ArrayAdapter<CharSequence> adapterEvent = ArrayAdapter
.createFromResource(getActivity(), R.array.type_array,
android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapterEvent
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
SpnrSearchByEvent.setAdapter(adapterEvent);
SpnrSearchByCustomer = (Spinner)rootView.findViewById(R.id.spSearchByCustomer);
// Populate Customer Spinner
// database handler
DatabaseHandler db = new DatabaseHandler(getActivity());
// Spinner Drop down elements
db.open();
Label = db.getAllNames();
// Creating adapter for spinner
ArrayAdapter<String> adapterCus = new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_spinner_item, Label);
// Drop down layout style - list view with radio button
adapterCus
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
SpnrSearchByCustomer.setAdapter(adapterCus);
db.close();
SpnrOrderTopic.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
switch (position) {
case 0:
SearchByField.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
SpnrSearchByCustomer.setVisibility(View.VISIBLE);
break;
case 1:
SearchByField.setVisibility(View.GONE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.VISIBLE);
break;
case 2:
SearchByField.setVisibility(View.VISIBLE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
break;
case 3:
SearchByField.setVisibility(View.VISIBLE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
break;
case 4:
SearchByField.setVisibility(View.VISIBLE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
break;
case 5:
SearchByField.setVisibility(View.VISIBLE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
break;
case 6:
SearchByField.setVisibility(View.VISIBLE);
SpnrSearchByCustomer.setVisibility(View.GONE);
SpnrSearchByEvent.setVisibility(View.GONE);
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
SpnrSearchByCustomer.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
SpnrSearchByEvent.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
// Setup Button Listeners
bLast50.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
}
});
bPending.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
}
});
bSearch.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
}
});
bClear.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
}
});
if (fragmentLayout == R.layout.activitymain) {
} else {
}
return rootView;
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
int item = SpnrOrderTopic.getSelectedItemPosition();
Intent i = new Intent(getActivity(), OrderQueryList.class);
SearchString = SearchByField.getText().toString();
switch (arg0.getId()) {
case R.id.bLast50Orders:
inputText = "LAST_50";
i.putExtra("keyinput", inputText);
startActivity(i);
break;
case R.id.bPendingOrders:
inputText = "PENDING_ORDERS";
i.putExtra("keyinput", inputText);
startActivity(i);
break;
case R.id.bSearchOrders:
switch (item) {
case 0:
inputText = "KEY_NAME";
i.putExtra("keyinput", inputText);
SearchString = SpnrSearchByCustomer.getSelectedItem().toString();
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 1:
inputText = "KEY_TYPEOFEVENT";
i.putExtra("keyinput", inputText);
SearchString = SpnrSearchByEvent.getSelectedItem().toString();
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 2:
inputText = "KEY_DETAIL";
i.putExtra("keyinput", inputText);
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 3:
inputText = "KEY_DATEOFEVENT";
i.putExtra("keyinput", inputText);
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 4:
inputText = "KEY_PRICE";
i.putExtra("keyinput", inputText);
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 5:
inputText = "KEY_ORDERCOMPLETED";
i.putExtra("keyinput", inputText);
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
case 6:
inputText = "KEY_TYPEOFEVENT";
i.putExtra("keyinput", inputText);
i.putExtra("SearchString", SearchString);
startActivity(i);
break;
}
break;
case R.id.bClearOrderSearch:
SearchByField.setText("");
SpnrSearchByCustomer.setSelection(0);
break;
}
}
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
}