CODEWITHSUNDEEP
androiddialog
brian
brian

Reputation: 6922

How to setView in dialog on Android

I use below code to setView in dialog: 

LayoutInflater inflater = LayoutInflater.from(this);
View layout = inflater.inflate(R.layout.mylayout, null);
TextView MyTextView = (TextView)findViewById(R.id.my_tv);
MyTextView.setText("test");
AlertDialog MyDialog;
AlertDialog.Builder MyBuilder = new AlertDialog.Builder(this);
MyBuilder.setTitle("title");
MyBuilder.setView(layout);
MyDialog = MyBuilder.create();
MyDialog.show();

my_tv is a TextView in mylayout.xml.
But it occurs NullPointer error at line MyTextView.setText("test");.
How can I modify it?

Upvotes: 0

Views: 5620

Answers (1)

Michael.Zhang
Michael.Zhang

Reputation: 46

When you instantiate the "MyTextView", you should instantiate by use follow code:

TextView MyTextView = (TextView)layout.findViewById(R.id.my_tv);

Upvotes: 2

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