这是FulfillRequest.java
public class FulfillRequest extends ActionBarActivity implements
OnClickListener, OnItemSelectedListener {
EditText parcelidtext, quantitytext, weighttext;
Button parcelexistbutton, calculatepaymentbutton;
Spinner typeSpinnerFulfillRequest;
JSONArray parcelconfirm = null;
JSONArray calculate = null;
private ProgressDialog messageDialog;
JSONParser jsonParser = new JSONParser();
private static final String CONFIRM_URL = "http://xxx.xxx.xxx.x/PMSS/trackparcel.php";
private static final String CALCULATE_URL = "http://xxx.xxx.xxx.x/PMSS/shipmentcalculate.php";
// JSON element ids from repsonse of php script:
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private static final String TAG_POSTS = "posts";
private static final String TAG_PARCELID = "parcelid";
private static final String TAG_PARCELSTATUS = "parcelstatus";
private static final String TAG_PARCELPAYMENT = "parcelpayment";
private static final String TAG_PARCELQUANTITY = "parcelquantity";
private static final String TAG_PARCELWEIGHT = "parcelweight";
private static final String TAG_PARCELTYPE = "parceltype";
private double payment = 0;
public String status;
private String ParcelIDCal;
private String Quantity;
private String Weight;
private String Payment;
private String Type;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fulfill_request);
parcelidtext = (EditText) findViewById(R.id.parcelidtext);
quantitytext = (EditText) findViewById(R.id.quantitytext);
weighttext = (EditText) findViewById(R.id.weighttext);
typeSpinnerFulfillRequest = (Spinner) findViewById(R.id.typeSpinnerFulfillRequest);
parcelexistbutton = (Button) findViewById(R.id.parcelexistbutton);
calculatepaymentbutton = (Button) findViewById(R.id.calculatepaymentbutton);
// Create an ArrayAdapter using the string array and a default spinner
// layout
ArrayAdapter<CharSequence> adapter = ArrayAdapter
.createFromResource(this, R.array.state_array,
android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
// Apply the adapter to the spinner
typeSpinnerFulfillRequest.setAdapter(adapter);
typeSpinnerFulfillRequest.setOnItemSelectedListener(FulfillRequest.this);
quantitytext.setEnabled(false);
weighttext.setEnabled(false);
//typeSpinnerFulfillRequest.setVisibility(View.GONE);
typeSpinnerFulfillRequest.setVisibility(100);
parcelexistbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
quantitytext.setText(null);
weighttext.setText(null);
quantitytext.setEnabled(false);
weighttext.setEnabled(false);
typeSpinnerFulfillRequest.setVisibility(0);
String ParcelID = parcelidtext.getText().toString();
new AttemptSearch(ParcelID).execute();
}
});
calculatepaymentbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
ParcelIDCal = parcelidtext.getText().toString();
Quantity = quantitytext.getText().toString();
Weight = weighttext.getText().toString();
/*if (ParcelIDCal == null || ParcelIDCal.trim().equals("")
|| Quantity == null || Quantity.trim().equals("")
|| Weight == null || Weight.trim().equals("")
|| Type == null || Type.trim().equals("")) {
new AlertDialog.Builder(FulfillRequest.this)
.setTitle("Parcel Information")
.setMessage(
"Please fill in all the information first before calculate. ")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
}
}).show();
}
else if( status.equals("paid") || status.equals("fulfilled")){
new AlertDialog.Builder(FulfillRequest.this)
.setTitle("Parcel Information")
.setMessage(
" The parcel status is either fulfilled or paid!")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
}
}).show();
}
else if("document".equals(Type) || "parcel".equals(Type)){
{
double weight = Double.parseDouble(Weight);
if (weight > 0 && weight < 0.50 && "document".equals(Type)) {
double baseamount = 4.50;
payment = ((baseamount * 1.25) * 1.06) + 5;
}
else if (weight > 0.50 && "document".equals(Type)) {
double baseamount = 5.50;
payment = ((baseamount * 1.25) * 1.06) + 5;
}
else if (weight > 0 && weight < 2.0 && "parcel".equals(Type)) {
double baseamount = 16.00;
payment = ((baseamount * 1.25) * 1.06) + 5;
}
else if (weight > 2.0 && "parcel".equals(Type)) {
double baseamount = 18.00;
payment = ((baseamount * 1.25) * 1.06) + 5;
}
else if (weight < 0){
new AlertDialog.Builder(FulfillRequest.this)
.setTitle("Parcel Information")
.setMessage(
" The weight value only valid in positive number. ")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
}
}).show();
}
String Payment = Double.toString(payment);
new AttemptCalculate(ParcelIDCal, Quantity, Weight, Type,
Payment).execute();
}
}
else{
new AlertDialog.Builder(FulfillRequest.this)
.setTitle("Parcel Information")
.setMessage(
" The information key-in is incorrect. ")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
}
}).show();
}*/
}
});
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void setupActionBar() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
getActionBar().setDisplayHomeAsUpEnabled(true);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.fulfill_request, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
Type = (String) typeSpinnerFulfillRequest.getItemAtPosition(position);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
class AttemptSearch extends AsyncTask<String, String, Integer> {
private final String TAG = null;
boolean failure = false;
String message;
String ParcelID, parcelid, parcelquantity, parcelweight, parceltype ,parcelstatus;
int success;
public AttemptSearch(String ParcelID) {
this.ParcelID = ParcelID;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
messageDialog = new ProgressDialog(FulfillRequest.this);
messageDialog.setMessage("Attempting checking...");
messageDialog.setIndeterminate(false);
messageDialog.setCancelable(true);
messageDialog.show();
}
protected Integer doInBackground(String... args) {
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("parcelid", ParcelID));
Log.d("check!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(CONFIRM_URL,
"POST", params);
// check your log for json response
Log.d("Checking attempt", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
message = json.getString(TAG_MESSAGE);
if (success == 1) {
Log.d("Retrieve Successful!", "message: " + message);
parcelconfirm = json.getJSONArray(TAG_POSTS);
JSONArray jr = parcelconfirm.getJSONArray(0);
JSONObject jb = jr.getJSONObject(0);
parcelid = jb.getString(TAG_PARCELID);
parcelquantity = jb.getString(TAG_PARCELQUANTITY);
parcelweight = jb.getString(TAG_PARCELWEIGHT);
parceltype = jb.getString(TAG_PARCELTYPE);
parcelstatus = jb.getString(TAG_PARCELSTATUS);
} else if (success == 0) {
Log.d("Retrieve Failed!", "message: " + message);
}
} catch (JSONException e) {
Log.e(TAG, "JSON error", e);
success = Integer.valueOf(0);
}
return success;
}
protected void onPostExecute(Integer success) {
// dismiss the dialog once product deleted
if (success != null && success == 1) {
if("fulfilled".equals(parcelstatus)){
quantitytext.setText(parcelquantity);
weighttext.setText(parcelweight);
if(parceltype.equals("document")){
typeSpinnerFulfillRequest.setSelection(0);
typeSpinnerFulfillRequest.getEmptyView();
}
else if(parceltype.equals("parcel")){
typeSpinnerFulfillRequest.setSelection(1);
typeSpinnerFulfillRequest.getEmptyView();
}
}
else if("paid".equals(parcelstatus)){
quantitytext.setText(parcelquantity);
weighttext.setText(parcelweight);
if(parceltype.equals("document")){
typeSpinnerFulfillRequest.setSelection(0);
}
else if(parceltype.equals("parcel")){
typeSpinnerFulfillRequest.setSelection(1);
}
}
else if("requested".equals(parcelstatus)){
quantitytext.setEnabled(true);
weighttext.setEnabled(true);
typeSpinnerFulfillRequest.setSelection(0);
}
status = parcelstatus;
Toast.makeText(
FulfillRequest.this,
message == null ? "Please enter parcel ID (success)"
: message, Toast.LENGTH_LONG).show();
messageDialog.dismiss();
} else {
parcelidtext.setText(null);
Toast.makeText(
FulfillRequest.this,
message == null ? "Please enter parcel ID (failed)"
: message, Toast.LENGTH_LONG).show();
}
}
}
class AttemptCalculate extends AsyncTask<String, String, Integer> {
private final String TAG = null;
boolean failure = false;
String message;
String ParcelID, Quantity, Weight, Type, Status = "fulfilled", Payment;
private String parcelstatus, parcelpayment;
int success;
public AttemptCalculate(String ParcelID, String Quantity,
String Weight, String Type, String Payment) {
this.ParcelID = ParcelID;
this.Quantity = Quantity;
this.Weight = Weight;
this.Type = Type;
this.Payment = Payment;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
messageDialog = new ProgressDialog(FulfillRequest.this);
messageDialog.setMessage("Attempting calculating...");
messageDialog.setIndeterminate(false);
messageDialog.setCancelable(true);
messageDialog.show();
}
protected Integer doInBackground(String... args) {
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("parcelid", ParcelID));
params.add(new BasicNameValuePair("parcelquantity", Quantity));
params.add(new BasicNameValuePair("parcelweight", Weight));
params.add(new BasicNameValuePair("parceltype", Type));
params.add(new BasicNameValuePair("parcelpayment", Payment));
params.add(new BasicNameValuePair("parcelstatus", Status));
Log.d("request!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(CALCULATE_URL,
"POST", params);
// check your log for json response
Log.d("Tracking attempt", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
message = json.getString(TAG_MESSAGE);
if (success == 1) {
Log.d("Retrieve Successful!", "message: " + message);
calculate = json.getJSONArray(TAG_POSTS);
JSONArray jr = calculate.getJSONArray(0);
JSONObject jb = jr.getJSONObject(0);
parcelpayment = jb.getString(TAG_PARCELPAYMENT);
parcelstatus = jb.getString(TAG_PARCELSTATUS);
} else if (success == 0) {
Log.d("Retrieve Failed!", "message: " + message);
}
} catch (JSONException e) {
Log.e(TAG, "JSON error", e);
success = Integer.valueOf(0);
}
return success;
}
protected void onPostExecute(Integer success) {
// dismiss the dialog once product deleted
messageDialog.dismiss();
if (success != null && success == 1) {
new AlertDialog.Builder(FulfillRequest.this)
.setTitle("Parcel Information")
.setMessage(
" Your Parcel Status is " + parcelstatus
+ ". Your Payment Amount is RM"
+ parcelpayment + ". ")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
parcelidtext.setText(null);
quantitytext.setText(null);
quantitytext.setEnabled(false);
weighttext.setText(null);
weighttext.setEnabled(false);
typeSpinnerFulfillRequest.getEmptyView();
}
}).show();
Toast.makeText(
FulfillRequest.this,
message == null ? "Please enter parcel ID (success)"
: message, Toast.LENGTH_LONG).show();
} else {
Toast.makeText(
FulfillRequest.this,
message == null ? "Please enter parcel ID (failed)"
: message, Toast.LENGTH_LONG).show();
}
}
}
我的logcat
05-15 00:39:38.728: E/AndroidRuntime(21078): FATAL EXCEPTION: main
05-15 00:39:38.728: E/AndroidRuntime(21078): Process: com.pmss, PID: 21078
05-15 00:39:38.728: E/AndroidRuntime(21078): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pmss/com.pmss.FulfillRequest}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread.access$800(ActivityThread.java:135)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.os.Handler.dispatchMessage(Handler.java:102)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.os.Looper.loop(Looper.java:136)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread.main(ActivityThread.java:5017)
05-15 00:39:38.728: E/AndroidRuntime(21078): at java.lang.reflect.Method.invokeNative(Native Method)
05-15 00:39:38.728: E/AndroidRuntime(21078): at java.lang.reflect.Method.invoke(Method.java:515)
05-15 00:39:38.728: E/AndroidRuntime(21078): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
05-15 00:39:38.728: E/AndroidRuntime(21078): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
05-15 00:39:38.728: E/AndroidRuntime(21078): at dalvik.system.NativeStart.main(Native Method)
05-15 00:39:38.728: E/AndroidRuntime(21078): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
05-15 00:39:38.728: E/AndroidRuntime(21078): at com.pmss.FulfillRequest.onCreate(FulfillRequest.java:81)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.Activity.performCreate(Activity.java:5231)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-15 00:39:38.728: E/AndroidRuntime(21078): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
05-15 00:39:38.728: E/AndroidRuntime(21078): ... 11 more
第81行是parcelidtext = (EditText) findViewById(R.id.parcelidtext);
这是我的activity_fulfill_request.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FulfillRequest" xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:id="@+id/RelativeLayout01"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="@string/app_name"
android:src="@drawable/pos_wing" />
<TextView
android:id="@+id/filldescription"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView1"
android:layout_marginTop="-10dp"
android:layout_centerHorizontal="true"
android:text="@string/filldescription"
android:textSize="25sp" />
<TextView
android:id="@+id/quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/parcelexistbutton"
android:layout_marginLeft="32dp"
android:layout_marginTop="25dp"
android:text="@string/quantity"
android:textSize="20sp" />
<TextView
android:id="@+id/weight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/quantitytext"
android:layout_marginLeft="10dp"
android:layout_marginTop="26dp"
android:text="@string/weight"
android:textSize="20sp" />
<TextView
android:id="@+id/type"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/weight"
android:layout_below="@+id/weighttext"
android:layout_marginTop="32dp"
android:text="@string/type"
android:textSize="20sp" />
<Button
android:id="@+id/calculatepaymentbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/typeSpinnerFulfillRequest"
android:layout_centerHorizontal="true"
android:layout_marginTop="33dp"
android:text="@string/calculatepayment" />
<TextView
android:id="@+id/parcelid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/parcelidtext"
android:layout_alignBottom="@+id/parcelidtext"
android:layout_marginLeft="45dp"
android:text="@string/parcelid"
android:textSize="20sp" />
<Button
android:id="@+id/parcelexistbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/parcelidtext"
android:layout_marginTop="17dp"
android:layout_toRightOf="@+id/parcelid"
android:text="@string/searchparcelexist" />
<EditText
android:id="@+id/parcelidtext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/parcelexistbutton"
android:layout_below="@+id/filldescription"
android:layout_marginLeft="21dp"
android:layout_marginTop="29dp"
android:ems="10"
android:inputType="text" >
<requestFocus />
</EditText>
<EditText
android:id="@+id/quantitytext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/quantity"
android:layout_alignBottom="@+id/quantity"
android:layout_alignLeft="@+id/parcelidtext"
android:ems="10"
android:inputType="number" />
<EditText
android:id="@+id/weighttext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/weight"
android:layout_alignBottom="@+id/weight"
android:layout_alignLeft="@+id/quantitytext"
android:ems="10"
android:inputType="numberDecimal" />
<Spinner
android:id="@+id/typeSpinnerFulfillRequest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/weighttext"
android:layout_alignRight="@+id/weighttext"
android:layout_alignTop="@+id/type" />
</RelativeLayout>
我想知道问题是什么。我没有将TextView转换为EditText，因为我的parcelidtext已经是EditText。任何人都可以帮助我。