public class Update extends Activity {
EditText edt_remark, edt_date;
Button but_save, but_cancel;
Spinner spin_stage, spin_status;
ImageButton but_date;
ListView lv;
String data, jobimporter, jobstage, jobstatus, jobdate, updatedremark,
stagename, statusname, updateddate, updatedstage, updatedstatus;
String sending_data, sending_importer, sending_stage, sending_status,
sending_remark, sending_date;
String stage1, parsedstage, receivedstage;
ArrayList<String> list, list_stage, list_status;
Calendar cal;
int day, month, year, stageid, parsedstageid1;
public static int parsedstageid2;
private static String TagContacts = "Employee";
JSONArray contacts = null;
ImageView research;
EditText getnewsearch;
Statustask st;
Postingtask pt;
Stageidtask stid;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTitle("Update Page");
setContentView(R.layout.copyofupdate);
edt_remark = (EditText) findViewById(R.id.edit_remark);
edt_date = (EditText) findViewById(R.id.edit_date);
but_save = (Button) findViewById(R.id.button_save);
but_cancel = (Button) findViewById(R.id.button_cancel);
but_date = (ImageButton) findViewById(R.id.button_date);
spin_stage = (Spinner) findViewById(R.id.spinner_stage);
spin_status = (Spinner) findViewById(R.id.spinner_status);
lv = (ListView) findViewById(R.id.listView1);
research = (ImageView) findViewById(R.id.button1);
getnewsearch = (EditText) findViewById(R.id.editText1);
list = new ArrayList<String>();
list_stage = new ArrayList<String>();
data = getIntent().getExtras().getString("DATA");
jobimporter = getIntent().getExtras().getString("JOBIMPORTER");
jobstage = getIntent().getExtras().getString("JOBSTAGE");
jobstatus = getIntent().getExtras().getString("JOBSTATUS");
jobdate = getIntent().getExtras().getString("JOBDATE");
cal = Calendar.getInstance();
day = cal.get(Calendar.DAY_OF_MONTH);
month = cal.get(Calendar.MONTH);
year = cal.get(Calendar.YEAR);
edt_date.setText(day + " / " + (month + 1) + " / " + year);
list.add("Job/BE No. : " + data);
list.add("Importer : " + jobimporter);
list.add("Current Stage : " + jobstage);
list.add("Current Status : " + jobstatus);
list.add("Status Date : " + jobdate);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(Update.this,
android.R.layout.simple_list_item_1, list);
lv.setAdapter(adapter);
new Stagetask().execute();
research.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String newdata = getnewsearch.getText().toString();
Log.d("NEWDATA",newdata);
if(TextUtils.isEmpty(newdata)==true) {
Toast.makeText(Update.this, "Enter BE/JOB No.", Toast.LENGTH_SHORT).show();
}
else {
Intent ii = new Intent(Update.this,SearchActivity.class);
ii.putExtra("NEWDATA", newdata);
ii.putExtra("FLAG", 200);
startActivity(ii);
finish();
}
}
});
but_cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder alert = new AlertDialog.Builder(
Update.this);
alert.setTitle("Jobstage update");
alert.setMessage("Are you sure you want to cancel???");
alert.setCancelable(false);
alert.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
Intent ii = new Intent(Update.this,SearchActivity.class);
ii.putExtra("FLAG",100);
startActivity(ii);
finish();
}
});
alert.setNegativeButton("No",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
}
});
alert.create().show();
}
});
but_save.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
try {
StringBuilder builder = new StringBuilder();
builder.append(month + 1).append("-").append(day)
.append("-").append(year);
updateddate = builder.toString();
updatedremark = edt_remark.getText().toString();
updatedstage = spin_stage.getSelectedItem().toString();
updatedstatus = spin_status.getSelectedItem().toString();
sending_data = data.trim();
sending_importer = jobimporter.replaceAll(" ", "%20")
.trim();
sending_stage = updatedstage.replaceAll(" ", "%20").trim();
sending_status = updatedstatus.trim()
.replaceAll(" ", "%20");
sending_remark = updatedremark.replaceAll(" ", "%20")
.trim();
sending_date = updateddate.trim();
if (sending_importer.isEmpty() || sending_stage.isEmpty()
|| sending_status.isEmpty()
|| sending_remark.isEmpty()
|| sending_date.isEmpty()) {
Toast.makeText(Update.this, "Enter complete details",
Toast.LENGTH_SHORT).show();
} else {
AlertDialog.Builder alert = new AlertDialog.Builder(
Update.this);
alert.setTitle("Jobstage update");
alert.setMessage("Do you want to save this record???");
alert.setCancelable(false);
alert.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
pt= new Postingtask();
pt.execute();
Toast.makeText(Update.this, "Successfull", Toast.LENGTH_SHORT).show();
Intent ii = new Intent(Update.this,SearchActivity.class);
ii.putExtra("FLAG",100);
startActivity(ii);
finish();
}
});
alert.setNegativeButton("No",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
Toast.makeText(Update.this,
"Not Saved", Toast.LENGTH_SHORT)
.show();
}
});
alert.create().show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
but_date.setOnClickListener(new OnClickListener() {
@SuppressWarnings("deprecation")
@Override
public void onClick(View v) {
showDialog(0);
}
});
Log.d("parsedstageid2 in ONCREATE",String.valueOf(parsedstageid2));
spin_stage
.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
String selectedstage = (String) arg0.getSelectedItem();
Log.d("SELECTED STAGE in Spinner", selectedstage);
stid = new Stageidtask();
stid.receivedstage = selectedstage;
stid.execute();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
public void passing(Integer result) {
// TODO Auto-generated method stub
Log.d("Received parsedstageid2 in passing()",String.valueOf(result));
st = new Statustask(result);
st.execute();
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(Update.this, android.R.layout.simple_spinner_dropdown_item,st.list_status);
spin_status.setAdapter(adapter1);
}
@Override
protected Dialog onCreateDialog(int id) {
return new DatePickerDialog(this, datePickerListener, year, month, day);
}
private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
edt_date.setText(selectedDay + " / " + (selectedMonth + 1) + " / "
+ selectedYear);
}
};
public class Stagetask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
String url = "http://114.143.96.201/Job/Default.aspx?query=select%20*%20from%20M_Stage";
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
contacts = jsonObj.getJSONArray(TagContacts);
// list_stage.add(0, "Choose here");
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
for (int i = 0; i < contacts.length(); i++) {
try {
JSONObject c = contacts.getJSONObject(i);
stagename = c.getString("StageName");
Log.d("STAGE",stagename);
list_stage.add(stagename);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
Update.this, android.R.layout.simple_spinner_dropdown_item,
list_stage);
spin_stage.setAdapter(adapter);
}
}
}
现在下面是StatusTask类.. 公共类Statustask扩展了AsyncTask {
private static String TagContacts = "Employee";
JSONArray contacts;
ArrayList<String> list_status = new ArrayList<String>();
String statusname;
int stageid1;
public Statustask(Integer result) {
// TODO Auto-generated constructor stub
stageid1 = result;
Log.d("STAGEID1 value",String.valueOf(stageid1));
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
String url = "http://114.143.96.201/Job/Default.aspx?query=select%20*%20from%20T_stagestatus%20where%20stageid="+stageid1;
Log.d("URL IN STATUSTASK",url);
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
contacts = jsonObj.getJSONArray(TagContacts);
for (int i = 0; i < contacts.length(); i++) {
try {
JSONObject c = contacts.getJSONObject(i);
statusname = c.getString("StatusName");
list_status.add(statusname);
Log.d("LIST_STATUS",statusname);
} catch (Exception e) {
e.printStackTrace();
}
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
}
}
现在我收到以下错误：
03-20 05:49:17.867: E/AndroidRuntime(2960): FATAL EXCEPTION: main
03-20 05:49:17.867: E/AndroidRuntime(2960): Process: com.vts.jobstage, PID: 2960
03-20 05:49:17.867: E/AndroidRuntime(2960): java.lang.IllegalStateException: System services not available to Activities before onCreate()
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.app.Activity.getSystemService(Activity.java:4532)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.widget.ArrayAdapter.init(ArrayAdapter.java:310)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:153)
03-20 05:49:17.867: E/AndroidRuntime(2960): at com.vts.jobstage.Update.passing(Update.java:289)
03-20 05:49:17.867: E/AndroidRuntime(2960): at com.vts.jobstage.Stageidtask.onPostExecute(Stageidtask.java:83)
03-20 05:49:17.867: E/AndroidRuntime(2960): at com.vts.jobstage.Stageidtask.onPostExecute(Stageidtask.java:1)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.os.AsyncTask.finish(AsyncTask.java:632)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.os.AsyncTask.access$600(AsyncTask.java:177)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.os.Handler.dispatchMessage(Handler.java:102)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.os.Looper.loop(Looper.java:136)
03-20 05:49:17.867: E/AndroidRuntime(2960): at android.app.ActivityThread.main(ActivityThread.java:5001)
03-20 05:49:17.867: E/AndroidRuntime(2960): at java.lang.reflect.Method.invokeNative(Native Method)
03-20 05:49:17.867: E/AndroidRuntime(2960): at java.lang.reflect.Method.invoke(Method.java:515)
03-20 05:49:17.867: E/AndroidRuntime(2960): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
03-20 05:49:17.867: E/AndroidRuntime(2960): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
03-20 05:49:17.867: E/AndroidRuntime(2960): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：0)
public void passing(Integer result) {
/***************************
st = new Statustask(result);
st.execute();
/*******************************
here your trying to set the result from task before the completion of task/***************(st.list_status)***********/
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(Update.this,android.R.layout.simple_spinner_dropdown_item,st.list_status);
spin_status.setAdapter(adapter1);
}
移动以下内容：
ArrayAdapter<String> adapter1 = new ArrayAdapter<String> (Update.this,android.R.layout.simple_spinner_dropdown_item,st.list_status);
spin_status.setAdapter(adapter1);
执行atTack后。