CODEWITHSUNDEEP
android
Darshan Kodkany
Darshan Kodkany

Reputation: 69

App crashes when getting Back using Intent

My application crashed when I'm trying to navigate from one activity to another.I have a menu page which consists of buttons,when i hit the first button it takes me to another activity, but when i am trying to get back to my menu activity i am getting null pointer exceptions.I don't know what is the problem exactly?

    Intent  intent = new Intent(VehicleNo.this,OptionMenuAct.class);
   startActivity(intent);

I am using the above code to get back to menu page.I am getting problem in oncreate function.this is the code for that

    protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_option_menu);



    t_row1=(TableRow)findViewById(R.id.t_row1);
    t_row2=(TableRow)findViewById(R.id.t_row2);
    t_row3=(TableRow)findViewById(R.id.t_row3);
    t_row4=(TableRow)findViewById(R.id.t_row4);
    t_row5=(TableRow)findViewById(R.id.t_row5);
    t_row6=(TableRow)findViewById(R.id.t_row6);
    t_row7=(TableRow)findViewById(R.id.t_row7);
    t_row8=(TableRow)findViewById(R.id.t_row101);
    t_row9=(TableRow)findViewById(R.id.t_row102);


    ArrayList<String> pv = new ArrayList<String>();

    pv = getIntent().getStringArrayListExtra("values");

    for (String s : pv) 
    {
        Log.d("k", s);
    }

Upvotes: 0

Views: 55

Answers (2)

starkshang
starkshang

Reputation: 8528

If you just want to back to menu page,you can call this.finish() to destory current activity and back to menu page activity.

Upvotes: 0

Dmila Ram
Dmila Ram

Reputation: 1074

Your OnCreate method uses its intent and it should have an stringarraylist along with it, you are passing no such a thing. try to pass your desired stringarraylist when you are starting your menu activity

Upvotes: 1

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