我有一个代码来更新数据库中的数据，但是当我想在onClickListener中调用EditText时出现一些问题，在类NetCheck中得到类似http://prntscr.com/blorcg的错误
我的完整代码活动
public class IGNActivity extends AppCompatActivity implements View.OnClickListener{
Toolbar toolbar;
private EditText editTextId;
private Button buttonGet;
private TextView account, name, race, job, map, level, dalant, gold, cpt, pvp, cash, premi;
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
JSONParser jsonParser = new JSONParser();
private ListView listView;
ArrayList<HashMap<String, String>> productsList;
// url to get all products list
private static String url_input_item = "http://192.168.1.113/add/update_cash.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "detail";
private static final String TAG_ONLINE = "Total Online";
private static final String TAG_CPT = "PvpPoint";
private static final String TAG_RACE = "Race";
final Context context = this;
// products JSONArray
JSONArray products = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ign);
TypedValue typedValueColorPrimaryDark = new TypedValue();
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
IGNActivity.this.getTheme().resolveAttribute(R.attr.colorPrimary, typedValueColorPrimaryDark, true);
final int colorPrimaryDark = typedValueColorPrimaryDark.data;
if (Build.VERSION.SDK_INT >= 21) {
getWindow().setStatusBarColor(colorPrimaryDark);
}
editTextId = (EditText) findViewById(R.id.editTextId);
buttonGet = (Button) findViewById(R.id.buttonGet);
account = (TextView) findViewById(R.id.accountplayer);
name = (TextView) findViewById(R.id.ignPlayer);
race = (TextView) findViewById(R.id.serialplayer);
job = (TextView) findViewById(R.id.raceplayer);
map = (TextView) findViewById(R.id.classplayer);
level = (TextView) findViewById(R.id.lvlplayer);
dalant = (TextView) findViewById(R.id.dalantplayer);
gold = (TextView) findViewById(R.id.goldplayer);
cpt = (TextView) findViewById(R.id.pvpplayer);
pvp = (TextView) findViewById(R.id.cptplayer);
cash = (TextView) findViewById(R.id.cc);
premi = (TextView) findViewById(R.id.premi);
//buttonGet.setOnClickListener(this);
/** Update Level **/
level.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// get prompts.xml view
LayoutInflater li = LayoutInflater.from(context);
View promptsView = li.inflate(R.layout.update_level, null);
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set prompts.xml to alertdialog builder
alertDialogBuilder.setView(promptsView);
final EditText userInput = (EditText) promptsView
.findViewById(R.id.editTextDialogUserInput);
userInput.setText(level.getText());
// set dialog message
alertDialogBuilder
.setCancelable(false)
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// get user input and set it to result
// edit text
//result.setText(userInput.getText());
new NetCheck().execute();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
dialog.cancel();
}
});
// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
}
});
class NetCheck extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(IGNActivity.this);
pDialog.setMessage("Creating ID Game Master..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Creating product
* */
protected String doInBackground(String... args) {
String ign = editTextId.getText().toString().trim();
String code = userInput.getText().toString();
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("ign", ign));
params.add(new BasicNameValuePair("code", code));
// getting JSON Object
// Note that create product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest(url_input_item,
"POST", params);
// check log cat fro response
Log.d("Create Response", json.toString());
// check for success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully created product
//Toast.makeText(CreateIDGM.this, "Success Create ID Game Master ", Toast.LENGTH_SHORT).show();
// closing this screen
finish();
} else {
// failed to create product
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url) {
// dismiss the dialog once done
pDialog.dismiss();
Intent i = new Intent(getApplicationContext(), InputItem.class);
startActivity(i);
Toast.makeText(IGNActivity.this, "Success Input Item ", Toast.LENGTH_SHORT).show();
}
}
任何人都可以帮助我解决我的问题
之前感谢
EDITED LOGCAT
06-27 11:12:03.875 1945-2007/net.dragon_dev.www.dzoneconnect E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #3
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
at java.util.concurrent.FutureTask.run(FutureTask.java:239)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.NullPointerException
at net.dragon_dev.www.dzoneconnect.IGNActivity$NetCheck.doInBackground(IGNActivity.java:486)
at net.dragon_dev.www.dzoneconnect.IGNActivity$NetCheck.doInBackground(IGNActivity.java:453)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask.run(FutureTask.java:234)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
06-27 11:12:04.647 1945-1945/net.dragon_dev.www.dzoneconnect E/WindowManager﹕ Activity net.dragon_dev.www.dzoneconnect.IGNActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{52eabd28 V.E..... R......D 0,0-684,192} that was originally added here
android.view.WindowLeaked: Activity net.dragon_dev.www.dzoneconnect.IGNActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{52eabd28 V.E..... R......D 0,0-684,192} that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:345)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:239)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.Dialog.show(Dialog.java:281)
at net.dragon_dev.www.dzoneconnect.IGNActivity$NetCheck.onPreExecute(IGNActivity.java:465)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
at android.os.AsyncTask.execute(AsyncTask.java:534)
at net.dragon_dev.www.dzoneconnect.IGNActivity$1$2.onClick(IGNActivity.java:126)
at android.support.v7.app.AlertController$ButtonHandler.handleMessage(AlertController.java:153)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：0)
将userInput.getText().toString()作为AsyncTask中的参数传递。
String input = userInput.getText().toString();
new NetCheck().execute(input);
在您的AsyncTask：
protected String doInBackground(String... args) {
String ign = editTextId.getText().toString().trim();
String code = args[0];
// Your code...
}