onActivityResult方法未被称为Android [英] onActivityResult method not being called Android

问题描述

我正在尝试将子活动中的数据发送给父母.但是以某种方式，不会调用onActivityResult(..).这是代码

I am trying to send data from child activity to parent. But somehow, onActivityResult(..) is not getting called. here is code

父母活动

selectedText.setOnTouchListener(new OnTouchListener() {



    public boolean onTouch(View v, MotionEvent event) {
                    if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
                        Intent intent = new Intent(Parents.this,Child.class);
                        startActivityForResult(intent, 1);
                    }
                    return true;
                }
            });


        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            switch (requestCode) {
            case 1:
                if (resultCode == RESULT_OK) {
                    if (data.hasExtra("selText")) {
                        selectedText.setText(data.getExtras().getString(
                                "selText"));

                    }
                    break;
                }
            }

子活动:我可以在setResult()中看到选定的值集.但是，在完成孩子的活动之后，就不能再回到父母的活动了.

Child Activity: I can see selected value set in the setResult(). But after finish of child activity, it's not going back to parent activity.

textListView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int myItemInt,
                    long arg3) {
                selectedFromList =(String) (textListView.getItemAtPosition(myItemInt));
                Intent data = new Intent();
                data.putExtra("selText", selectedFromList);
                setResult(RESULT_OK,data);
                finish();
            }
        });

推荐答案

我发现了错误.我在manifest.xml中有以下代码用于儿童活动.

I found the mistake. I had below line in manifest.xml for child acitivity.

        android:launchMode="singleInstance"

删除此行后.它的工作就像一种魅力！！！

after removing this line. it's working like a charm!!!

谢谢大家的意见和建议.

Thank You all for your input and suggestions.

这篇关于onActivityResult方法未被称为Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！