Android onActivityResult传值

Android onActivityResult传值 public class Wizard extends Activity { private TextView step1result, step2result, step3result; public static final String INTENT_STEP1 = ";com.novoda.STEP1"; ; public static final String INTENT_STEP2 = ";com.novoda.STEP2"; ; public static final String INTENT_STEP3 = ";com.novoda.STEP3"; ; private static final int STEP1 = 1 ; private static final int STEP2 = 2 ; private static final int STEP3 = 3 ; @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.wizard); this .step1result = (TextView)findViewById(R.id.step1result); this .step2result = (TextView)findViewById(R.id.step2result); this .step3result = (TextView)findViewById(R.id.step3result); startActivityForResult(new Intent(Wizard.INTENT_STEP1), STEP1); } protected void onActivityResult( int requestCode, int resultCode, Intent data) { switch (requestCode) { case STEP1: this .step1result.setText(data.getStringExtra( ";STEP1RESULT"; )); startActivityForResult(new Intent(Wizard.INTENT_STEP2), STEP2); break ; case STEP2: this .step2result.setText(data.getStringExtra( ";STEP2RESULT"; )); startActivityForResult(new Intent(Wizard.INTENT_STEP3), STEP3); break ; case STEP3: this .step3result.setText(data.getStringExtra( ";STEP3RESULT"; )); break ; } } } public class Step1 extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.step1); Button nextStep = (Button)findViewById(R.id.goto2); nextStep.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Intent it = new Intent(); it.putExtra(";STEP1RESULT"; , ((EditText)findViewById(R.id.step1value)).getText() .toString()); setResult(Activity.RESULT_OK, it); finish(); } }); } }