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POHow to do validation in EditText within a ListView?
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  1. POHow to do validation in EditText within a ListView?
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    copied!<p>I have problem in validating Edittext in listview in onFocusChangeListner.</p> <p>My UI looks like this</p> <pre><code>MeterName Previous CurrentReading Meter1 100 Here i want to type current reading </code></pre> <p>When I type the current Reading it will compare with previous reading. Current Reading can't be less than Previous. If it is less than previous then I want to alert the user and focus is on same EditBox.</p> <p>My code is here:</p> <pre><code> public void onFocusChange(View v, boolean hasFocus) { try { Previous_Reading = getArray_Meter_Reading.getJSONObject(holder.ref) .getString("PrevMeterReading").toString(); Cumulative = getArray_Meter_Reading .getJSONObject(holder.ref).getString("Cumulative") .toString(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } if(!hasFocus){ int Current=Integer.valueOf(holder.adp_Current.getText().toString()); Previous=Integer.parseInt(Previous_Reading); if(Current&lt; Previous ){ AlertDialog.Builder builder = new AlertDialog.Builder( context); builder.setTitle("WARNING"); builder.setIcon(android.R.drawable.ic_dialog_alert); builder.setMessage("Please Enter UserName"); builder.setPositiveButton("ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // Caption.requestFocus(); } }); AlertDialog diag = builder.create(); diag.show(); } } } }); </code></pre> <p>With this code, when I start typing in EditBox alert is shown for all the characters, what I type like if previous is 600 and I type current reading like 6 it shows me alertdialog then 5 again alertdialog till it is greater than previous value. </p> <p>When I click on EditText hasFocus is true and when I type any number say 5 focus changes to false.</p> <p>Can any one tell me how to do validation for that by giving sample code?</p>
 

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