Android 从 onActivityResult 接收值并将其设置为 Button

Question

使用这段代码，我可以轻松地动态插入一些布局。布局包含一个 Button，我想启动它 startActivityForResult。现在，当我得到结果(文本)时，我想在 Button 上设置它。

btnAggiungiCampo.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        PopupMenu popup = new PopupMenu(this, btnAggiungiCampo);
        popup.getMenuInflater().inflate(R.menu.menu_campi, popup.getMenu());
        popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
            public boolean onMenuItemClick(MenuItem item) {
                View child = null;
                if (item.getTitle().equals(getString(R.string.Text))) {
                    child = getLayoutInflater().inflate(R.layout.inflate_campo, null);
                    rlCampi.addView(child);

                    Button btnGeneraPSW = (Button) child.findViewById(R.id.imageButton3);
                                btnGeneraPSW.setOnClickListener(new View.OnClickListener() {
                                    @Override
                                    public void onClick(View v) {
                                        Intent inte = new Intent(this, Genera_password.class);
                                        startActivityForResult(inte, REQ_CODE_ACT1);
                                    }
                                });
                }
            }
        }
    }
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == REQ_CODE_ACT1) {

            // how can I set??

        }
    }
}

Answer 1

完成所有操作后，在 Genera_password Activity 中执行此操作。

Intent data=new Intent();
data.putExtra("text",requiredText);
setResult(Activity.RESULT_OK,data);
finish(); //to destroy Genera_password Activity

在当前 Activity 的OnActivityResult中

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == REQ_CODE_ACT1) {
            String requredText=data.getExtras().getString("text");
            button.setText(requredText);
        }
    }
}