java - 微调器值未从一项 Activity 传递到另一项 Activity

Question

ViewToken.class:

    spinnerGenre = (Spinner) findViewById(R.id.spinnerGenres);
    spinnerGenre1 = (Spinner) findViewById(R.id.spinner);

    docname = spinnerGenre1.getSelectedItem().toString();
    session = spinnerGenre.getSelectedItem().toString();

    next=(Button)findViewById(R.id.button4);
    next.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent next=new Intent(ViewToken.this,Tokens.class);
            next.putExtra("docname", docname.toString());
            next.putExtra("session", session.toString());
            startActivity(next);
        }
    });

token 类

    Intent i2 = getIntent();
    final String docname = i2.getStringExtra("docname");
    final String session = i2.getStringExtra("session");

ViewToken.class 中的微调器值未传递给 Tokens.class

Answer 1

在 ViewToken.class 中更改它

next.putExtra("docname", docname);
next.putExtra("session", session);

您可以在 Tokens.class 中执行以下操作

Bundle extras = getIntent().getExtras();
String docname = extras.getString("docname");
String session = extras.getString("session");