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POOnly the original thread that created a view hierarchy can touch its views ERROR
 

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  1. POOnly the original thread that created a view hierarchy can touch its views ERROR
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    <p>Everything works except when it reaches till the last part of the code with "Successfully Registered!" then the error as mentioned in the title appears inside the registerDialog message part.</p> <p>Anything im doing wrongly? can anyone help me check up my code</p> <p>Thank you very much.</p> <p>The app didn't crash though it just exit back to the app main page. and if i press the register button again it will return with the same error.</p> <blockquote> <p>private void setRegister(Button b) { b.setOnClickListener(new View.OnClickListener() {</p> </blockquote> <pre><code> private AsyncTask&lt;String, Void, String&gt; task2; public void onClick(View v) { // TODO Auto-generated method stub registerDialog = new AlertDialog.Builder(Login.this).create(); registerDialog.setTitle("Register Alert!"); registerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Back", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub registerDialog.dismiss(); } }); task2 = new AsyncTask&lt;String, Void, String&gt;() { ProgressDialog dialog2; ArrayList&lt;NameValuePair&gt; postParameters2; String response2 = null; @Override protected void onPreExecute() { postParameters2 = new ArrayList&lt;NameValuePair&gt;(); postParameters2.add(new BasicNameValuePair("usernamelog", rUsername.getText().toString())); postParameters2.add(new BasicNameValuePair("passwordlog", rPassword.getText().toString())); postParameters2.add(new BasicNameValuePair("rpasswordlog", rRpassword.getText().toString())); postParameters2.add(new BasicNameValuePair("emaillog", rEmail.getText().toString())); postParameters2.add(new BasicNameValuePair("phonenumlog", rPhoneNum.getText().toString())); postParameters2.add(new BasicNameValuePair("doblog", rBirthday.getText().toString())); postParameters2.add(new BasicNameValuePair("genderlog", rGender.getText().toString().toUpperCase(Locale.ENGLISH))); dialog2 = new ProgressDialog(Login.this, ProgressDialog.STYLE_SPINNER); dialog2.setMessage("Registering..."); dialog2.show(); } @Override protected String doInBackground(String... params) { try { response2 = CustomHttpClient.executeHttpPost("http://whatstherex.info/checkR.php", postParameters2); String res2 = response2.toString(); res2 = res2.replaceAll("null", ""); if (res2.equals("1")) { res2 = "Successfully Registered!"; rAuth.setTextColor(Color.GREEN); return res2; } else { res2 = res2.toString(); rAuth.setTextColor(Color.RED); return res2; } } catch (Exception e) { res2 = e.toString(); rAuth.setTextColor(Color.BLACK); return res2; } } @Override protected void onPostExecute(String result2) { if(!result2.equals("Successfully Registered!") &amp;&amp; !result2.equals("Username have to be at least 5 characters") &amp;&amp; !result2.equals("Password have to be at least 8 characters") &amp;&amp; !result2.equals("Passwords does not match") &amp;&amp; !result2.equals("Email field is empty") &amp;&amp; !result2.equals("Email field is not valid") &amp;&amp; !result2.equals("Phone number Field is empty") &amp;&amp; !result2.equals("Phone number is not numeric") &amp;&amp; !result2.equals("Phone number is not 8 digit") &amp;&amp; !result2.equals("Birthday Field is empty") &amp;&amp; !result2.equals("Birthday is not numeric") &amp;&amp; !result2.equals("Birthday is not in DDMMYYYY format") &amp;&amp; !result2.equals("Gender Field is empty") &amp;&amp; !result2.equals("Gender Field is invalid") &amp;&amp; !result2.equals("Gender not in the format M or F") &amp;&amp; !result2.equals("Duplicate entry '"+rUsername.getText().toString()+"' for key 'username'") &amp;&amp; !result2.equals("Duplicate entry '"+rEmail.getText().toString()+"' for key 'email'") &amp;&amp; !result2.equals("Duplicate entry '"+rPhoneNum.getText().toString()+"' for key 'phoneNum'")){ rAuth.setText("Unknown Error!!!"); rAuth.setTextColor(Color.BLUE); registerDialog.setMessage(result2); registerDialog.show(); dialog2.dismiss(); }else if (result2.equals("Duplicate entry '"+rUsername.getText().toString()+"' for key 'username'")) { rAuth.setText("Username already in used"); rAuth.setTextColor(Color.RED); registerDialog.setMessage("Username already in used"); registerDialog.show(); dialog2.dismiss(); }else if (result2.equals("Duplicate entry '"+rEmail.getText().toString()+"' for key 'email'")) { rAuth.setText("Email already in used"); rAuth.setTextColor(Color.RED); registerDialog.setMessage("Email already in used"); registerDialog.show(); dialog2.dismiss(); }else if (result2.equals("Duplicate entry '"+rPhoneNum.getText().toString()+"' for key 'phoneNum'")){ rAuth.setText("Phone number already in used"); rAuth.setTextColor(Color.RED); registerDialog.setMessage("Phone number already in used"); registerDialog.show(); dialog2.dismiss(); }else { rAuth.setText("Successfully Registered!"); rAuth.setTextColor(Color.GREEN); registerDialog.setMessage("Successfully Registered!"); registerDialog.show(); dialog2.dismiss(); } } }; task2.execute(); } }); } </code></pre>
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    1. COread the stacktrace, you'll find the answer
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