嗨，我必须开发一个微调器示例。
列表添加到微调框：
List<String> list = new ArrayList<String>();
Intent in = getIntent();
String status = in.getStringExtra(KEY_STATUS);
list.add(status);
list.add("Q");
list.add("P");
list.add("F");
list.add("I");
list.add("C");
这里的状态是从以前的活动状态值得到的。其他列表是默认的 Q、P、F、I 和 C。因为第一个列表只显示以前的状态。所以只有我必须先在这里添加状态。在这里将所有值添加到包括复制的列表，然后使用 for 循环检查当前状态并尝试从列表中删除。这里使用了这个概念。
这是我的代码：
public class InsertionExample extends Activity {
private final String NAMESPACE = "http://xcart.com";
private final String URL = "http://192.168.1.168:8089/XcartLogin/services/update?wsdl";
private final String SOAP_ACTION = "http://xcart.com/insertData";
private final String METHOD_NAME = "insertData";
Button btninsert;
String selectedItem;
private int i;
static final String KEY_NAME = "orderid";
static final String KEY_STATUS = "status";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final boolean customTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.change_status);
if (customTitleSupported) {
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.window_title);
}
final TextView myTitleText = (TextView) findViewById(R.id.mytitle);
if (myTitleText != null) {
myTitleText.setText("Change Order Status");
}
/* Intent in = getIntent();
// Get XML values from previous intent
String orderid = in.getStringExtra(KEY_NAME);
// Displaying all values on the screen
TextView lblName = (TextView) findViewById(R.id.textView1);
lblName.setText(orderid); */
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
btninsert = (Button)findViewById(R.id.btn_insert1);
btninsert.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent in = getIntent();
String orderid = in.getStringExtra(KEY_NAME);
String status = in.getStringExtra(KEY_STATUS);
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo unameProp =new PropertyInfo();
unameProp.setName("Status");//Define the variable name in the web service method
unameProp.setValue(selectedItem);//Define value for fname variable
unameProp.setType(String.class);//Define the type of the variable
request.addProperty(unameProp);
PropertyInfo idProp =new PropertyInfo();
idProp.setName("Orderid");//Define the variable name in the web service method
idProp.setValue(orderid);//Define value for fname variable
idProp.setType(String.class);//Define the type of the variable
request.addProperty(idProp);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
try{
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
TextView result = (TextView) findViewById(R.id.textView2);
result.setText(response.toString());
}
catch(Exception e){
}
}
});
//attach the listener to the spinner
spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
//Dynamically generate a spinner data
createSpinnerDropDown();
}
//Add animals into spinner dynamically
private void createSpinnerDropDown() {
//get reference to the spinner from the XML layout
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
//Array list of animals to display in the spinner
List<String> list = new ArrayList<String>();
Intent in = getIntent();
String status = in.getStringExtra(KEY_STATUS);
list.add(status);
list.add("Q");
list.add("P");
list.add("F");
list.add("I");
list.add("C");
for(i=0;i<((TextView) list).length();i++){
if(list.get(i).equals(status)) {
list.remove(list.get(i));
}
}
//create an ArrayAdaptar from the String Array
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, list);
//set the view for the Drop down list
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//set the ArrayAdapter to the spinner
spinner.setAdapter(adapter);
adapter.notifyDataSetChanged();
//attach the listener to the spinner
spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
}
public class MyOnItemSelectedListener implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
selectedItem = parent.getItemAtPosition(pos).toString();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
public void onNothingSelected(AdapterView<?> parent) {
// Do nothing.
}
}
在这里，我的应用程序被强制关闭。在我的控制台窗口上也出现以下错误：
10-15 16:34:02.021: D/dalvikvm(2203): GC_EXTERNAL_ALLOC freed 947 objects / 65120 bytes in 61ms
10-15 16:39:29.661: D/dalvikvm(2203): GC_FOR_MALLOC freed 5616 objects / 350760 bytes in 56ms
10-15 16:39:30.342: D/dalvikvm(2203): GC_FOR_MALLOC freed 8368 objects / 548488 bytes in 52ms
10-15 16:39:32.082: W/drawable(2203): Bad element under <shape>: margin
10-15 16:39:32.092: W/drawable(2203): Bad element under <shape>: margin
10-15 16:39:32.172: D/dalvikvm(2203): GC_FOR_MALLOC freed 5508 objects / 311288 bytes in 51ms
10-15 16:39:32.172: I/dalvikvm-heap(2203): Grow heap (frag case) to 2.912MB for 87396-byte allocation
10-15 16:39:32.232: D/dalvikvm(2203): GC_FOR_MALLOC freed 136 objects / 5536 bytes in 52ms
10-15 16:39:32.292: D/dalvikvm(2203): GC_FOR_MALLOC freed 0 objects / 0 bytes in 58ms
10-15 16:39:32.292: I/dalvikvm-heap(2203): Grow heap (frag case) to 2.990MB for 87396-byte allocation
10-15 16:39:32.352: D/dalvikvm(2203): GC_FOR_MALLOC freed 70 objects / 2880 bytes in 55ms
10-15 16:39:32.671: D/dalvikvm(2203): GC_FOR_MALLOC freed 6159 objects / 257232 bytes in 57ms
10-15 16:39:33.042: D/dalvikvm(2203): GC_FOR_MALLOC freed 20488 objects / 928728 bytes in 55ms
10-15 16:39:36.112: D/AndroidRuntime(2203): Shutting down VM
10-15 16:39:36.112: W/dalvikvm(2203): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
10-15 16:39:36.142: E/AndroidRuntime(2203): FATAL EXCEPTION: main
10-15 16:39:36.142: E/AndroidRuntime(2203): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.androidlogin.ws/com.androidlogin.ws.InsertionExample}: java.lang.ClassCastException: java.util.ArrayList
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.os.Handler.dispatchMessage(Handler.java:99)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.os.Looper.loop(Looper.java:123)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread.main(ActivityThread.java:4627)
10-15 16:39:36.142: E/AndroidRuntime(2203): at java.lang.reflect.Method.invokeNative(Native Method)
10-15 16:39:36.142: E/AndroidRuntime(2203): at java.lang.reflect.Method.invoke(Method.java:521)
10-15 16:39:36.142: E/AndroidRuntime(2203): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-15 16:39:36.142: E/AndroidRuntime(2203): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-15 16:39:36.142: E/AndroidRuntime(2203): at dalvik.system.NativeStart.main(Native Method)
10-15 16:39:36.142: E/AndroidRuntime(2203): Caused by: java.lang.ClassCastException: java.util.ArrayList
10-15 16:39:36.142: E/AndroidRuntime(2203): at com.androidlogin.ws.InsertionExample.createSpinnerDropDown(InsertionExample.java:122)
10-15 16:39:36.142: E/AndroidRuntime(2203): at com.androidlogin.ws.InsertionExample.onCreate(InsertionExample.java:101)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-15 16:39:36.142: E/AndroidRuntime(2203): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-15 16:39:36.142: E/AndroidRuntime(2203): ... 11 more
10-15 16:39:38.791: D/dalvikvm(2210): GC_EXTERNAL_ALLOC freed 976 objects / 66240 bytes in 50ms
请给我解决方案。