CODEWITHSUNDEEP
android
Devrath
Devrath

Reputation: 42824

Validation for empty edittext in android

What i am doing::

Code i am using for validation::

private void chkUsrIpValidation() {
        if((edtTxtCity.getText().toString().trim().equals(""))&&(edtTxtDate.getText().toString().trim().equals(""))){
            DlgUniversalError.showCustomAlert(getActivity(), "Please enter the city name");
        }   
    }

Error i am facing::

06-07 23:01:38.431: E/AndroidRuntime(915): FATAL EXCEPTION: main
06-07 23:01:38.431: E/AndroidRuntime(915): java.lang.NullPointerException
06-07 23:01:38.431: E/AndroidRuntime(915):  at com.findmybuffet.fragments.FrgMdSearch.chkUsrIpValidation(FrgMdSearch.java:126)
06-07 23:01:38.431: E/AndroidRuntime(915):  at com.findmybuffet.fragments.FrgMdSearch.access$0(FrgMdSearch.java:118)
06-07 23:01:38.431: E/AndroidRuntime(915):  at com.findmybuffet.fragments.FrgMdSearch$1.onClick(FrgMdSearch.java:110)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.view.View.performClick(View.java:3480)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.view.View$PerformClick.run(View.java:13983)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.os.Handler.handleCallback(Handler.java:605)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.os.Looper.loop(Looper.java:137)
06-07 23:01:38.431: E/AndroidRuntime(915):  at android.app.ActivityThread.main(ActivityThread.java:4340)
06-07 23:01:38.431: E/AndroidRuntime(915):  at java.lang.reflect.Method.invokeNative(Native Method)
06-07 23:01:38.431: E/AndroidRuntime(915):  at java.lang.reflect.Method.invoke(Method.java:511)
06-07 23:01:38.431: E/AndroidRuntime(915):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
06-07 23:01:38.431: E/AndroidRuntime(915):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
06-07 23:01:38.431: E/AndroidRuntime(915):  at dalvik.system.NativeStart.main(Native Method)

How can i resolve this, Am i specifying && condition wrong ?

Upvotes: 0

Views: 108

Answers (3)

DeeV
DeeV

Reputation: 36035

One of my EditTexts must be null. Those are edtTxtCity.getText() and edtTxtDate.getText() are the only two points in the if-statement that can cause an NPE.

It may also be easier to use TextUtils to check in which you got TextUtils.isEmpty(edtTxtCity.getText()). It'll return true whether the text is null or empty.

Upvotes: 2

EpicPandaForce
EpicPandaForce

Reputation: 81539

Why not the following,

private void chkUsrIpValidation() 
{
    if((edtTxtCity.getText() != null || edtTxtDate.getText() != null)
    {
        if(!"".equals(edtTxtCity.getText().toString()) || !"".equals(edtTxtDate.getText().toString())
        {
            DlgUniversalError.showCustomAlert(getActivity(), "Please enter the city name");
        }
    }   
}

Upvotes: 0

CodeWarrior
CodeWarrior

Reputation: 5176

if(null != edtTxtCity 
&& edtTxtCity.getText().toString().trim().length() > 0){
}

Upvotes: 0

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