StartActivity
用startActivityForResult(intent, requestcode);启动子功能模块activity
onActivityResult(int requestCode, int resultCode, Intent data)对子activity返回进行判断处理
public class StartActivity extends Activity implements OnClickListener {private Button bt;private TextView tv;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.start);bt = (Button) findViewById(R.id.bt);tv = (TextView) findViewById(R.id.tv);bt.setOnClickListener(this);}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent i = new Intent(StartActivity.this, RequestActivity.class);startActivityForResult(i, 1);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {// TODO Auto-generated method stubif (requestCode == 1 && resultCode == RESULT_OK) {tv.setText(data.getStringExtra("request"));}} RequestActivity
setResult(resuletCode,Intent);intent里放要返回的数据
finish();返回父activity;
public class RequestActivity extends Activity implements OnClickListener {private EditText et;private Button bt;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.request);et = (EditText) findViewById(R.id.et);bt = (Button) findViewById(R.id.bt);bt.setOnClickListener(this);}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent i = new Intent();i.putExtra("request", et.getText().toString());setResult(RESULT_OK, i);finish();}}
