将自定义Activity作为startActivityForResult调用

Question

我正在开始一个活动结果为

startActivityForResult(new Intent(this,ActivityA.class),REQUEST_CODE)

ActivityA已启动.ActivityA上有一个gridview,我想在调用者Activity的方法onActivityResult(int requestCode,int resultCode,Intent data)中获取所选图像的位置但是我没有办法做到这一点

Answer 1

在活动A中,

onItemClick() 的 GridView

//create a new intent...
Intent intent = new Intent();
intent.putInt("position",position);
setResult(RESULT_OK,intent);
//close this Activity...
finish();

在来电活动中,

  @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent){
        super.onActivityResult(requestCode, resultCode, intent);
        Bundle extras = intent.getExtras();
        if(extras != null)
        int position = extras.getInt("position");
    }