startActivityForResult相关参数说明

      原型：void startActivityForResult(Intent intent,int requestCode);

      重写方法：void onActivityResult(int requestCode,int resultCode,Intent data);

      打开的Activity中调用方法：final void setResult(int resultCode,Intent data);

 

    参数：

    --intent ：用于数据交换；

    --requestCode：

button1.setOnClickListener(
  new View.OnClickListener(){
    public void onClick(View v) {
      startActivityForResult (
        new Intent(ReceiveResult.this, SendResult.class),1);
    }
  }
);
button2.setOnClickListener(
  new View.OnClickListener(){
    public void onClick(View v) {
      startActivityForResult(
        new Intent(ReceiveResult.this, SendResult.class), 2); 
    }
  }
); 
@Override 
protected void 
onActivityResult(int requestCode, int resultCode, Intent data) {
  switch(requestCode){
    case 1://来自按钮1的请求，做相应业务处理
     case 2://来自按钮2的请求，做相应业务处理
  }
}

    --resultCode：

public class SendResult1 extends Activity {
    .....
    setResult(1, intent);
    return false;
    ......
}
public class SendResult2 extends Activity {
    ......
    setResult(2, intent);
    return false;
    ......
}
public class ReceiveResult extends Activity { 
  @Override 
  protected void 
  onActivityResult(int requestCode, int resultCode, Intent data) {
      switch(resultCode){
           case 1:// SendResult1的返回数据
             case 2:// SendResult2的返回数据
      }
  }
}

代码数据引自：www.innovation-office.net 

点击查看: startActivityForResult调用问题总结