android在服务器数据库上发布错误k

Question

我正在尝试在服务器数据库上发布 不知道错误到底在哪里，但它似乎在 Asynctask 中检查 logcat

所以我真的不确定错误是来自 PHP 文件还是 Java 代码

 07-07 20:07:30.533: E/WindowManager(1688): Activity com.example.ahliaevents.AddCard has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@421da710 that was originally added here
07-07 20:07:30.533: E/WindowManager(1688): android.view.WindowLeaked: Activity com.example.ahliaevents.AddCard has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@421da710 that was originally added here
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.ViewRootImpl.<init>(ViewRootImpl.java:374)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:292)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.Window$LocalWindowManager.addView(Window.java:547)
07-07 20:07:30.533: E/WindowManager(1688):  at android.app.Dialog.show(Dialog.java:277)
07-07 20:07:30.533: E/WindowManager(1688):  at com.example.ahliaevents.AddCard$CreateNewCard.onPreExecute(AddCard.java:75)
07-07 20:07:30.533: E/WindowManager(1688):  at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
07-07 20:07:30.533: E/WindowManager(1688):  at android.os.AsyncTask.execute(AsyncTask.java:534)
07-07 20:07:30.533: E/WindowManager(1688):  at com.example.ahliaevents.AddCard$1.onClick(AddCard.java:55)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.View.performClick(View.java:4084)
07-07 20:07:30.533: E/WindowManager(1688):  at android.view.View$PerformClick.run(View.java:16966)
07-07 20:07:30.533: E/WindowManager(1688):  at android.os.Handler.handleCallback(Handler.java:615)
07-07 20:07:30.533: E/WindowManager(1688):  at android.os.Handler.dispatchMessage(Handler.java:92)
07-07 20:07:30.533: E/WindowManager(1688):  at android.os.Looper.loop(Looper.java:137)
07-07 20:07:30.533: E/WindowManager(1688):  at android.app.ActivityThread.main(ActivityThread.java:4745)
07-07 20:07:30.533: E/WindowManager(1688):  at java.lang.reflect.Method.invokeNative(Native Method)
07-07 20:07:30.533: E/WindowManager(1688):  at java.lang.reflect.Method.invoke(Method.java:511)
07-07 20:07:30.533: E/WindowManager(1688):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
07-07 20:07:30.533: E/WindowManager(1688):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-07 20:07:30.533: E/WindowManager(1688):  at dalvik.system.NativeStart.main(Native Method)

这是我的课

public class AddCard extends Activity {

    // Progress Dialog
    private ProgressDialog pDialog;

    JSONParser jsonParser = new JSONParser();
    EditText inputName,inputPhone,inputPosition,inputCollege;

    // url to create new product
    private static String url_create_card = "#####://####/####/#####.php";

    // JSON Node names
    private static final String TAG_SUCCESS = "success";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.addcard);

        // Edit Text
        inputName = (EditText) findViewById(R.id.addstudentname);
        inputCollege = (EditText) findViewById(R.id.addstudentcollege);
        inputPosition = (EditText) findViewById(R.id.addstudentposition);
        inputPhone = (EditText) findViewById(R.id.addstudentphone);

        // Create button
        Button btnCreateProduct = (Button) findViewById(R.id.addcardsave);

        // button click event
        btnCreateProduct.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                // creating new product in background thread
                new CreateNewCard().execute();
            }
        });
    }

    /**
     * Background Async Task to Create new product
     * */
    class CreateNewCard extends AsyncTask<String, String, String> {

        /**
         * Before starting background thread Show Progress Dialo
         * */
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            pDialog = new ProgressDialog(AddCard.this);
            pDialog.setMessage("Creating Student Card..");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(true);
            pDialog.show();
        }

        /**
         * Creating product
         * */
        protected String doInBackground(String... args) {
            String name = inputName.getText().toString();
            String position = inputPosition.getText().toString();
            String college = inputCollege.getText().toString();
            String phone = inputPhone.getText().toString();

            // Building Parameters
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("name", name));
            params.add(new BasicNameValuePair("position", position));
            params.add(new BasicNameValuePair("college", college));
            params.add(new BasicNameValuePair("phone", phone));

            // getting JSON Object
            // Note that create product url accepts POST method
            JSONObject json = jsonParser.makeHttpRequest(url_create_card,
                    "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
                    Intent i = new Intent(getApplicationContext(), MainActivity.class);
                    startActivity(i);

                    // closing this screen
                    finish();
                } else {
                    // failed to create product
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }

            return null;
        }

        /**
         * After completing background task Dismiss the progress dialog
         * **/
        protected void onPostExecute(String file_url) {
            // dismiss the dialog once done
            pDialog.dismiss();
        }

    }
}

Answer 1

不，这不是服务器端错误。阅读https://stackoverflow.com/a/9492974/2069130 并理解错误。实际上，您不能在 doInBackGround 中执行某种 UI 操作。您必须将那段代码放在 onPostExecute 中，或者您必须使用

Activity_Name.this.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                // your stuff to update the UI

            }
        });

围绕该代码