java - 我的 Activity 没有调用 onActivityResult

Question

我正在尝试使用 startActivityForResult 编写 2 个 Activity 。但我的 Activity 没有调用 onActivityResult。

编辑:我打开一个对话框。当我单击“取消”时，该框不得再次出现。当我单击稍后提醒我时，如果我转到第二个 Activity 并返回主页，则必须显示该框。

我不明白。我检查了堆栈溢出，但没有正确的答案。

你能帮我吗 =)

谢谢

第一个 Activity :

...
public void onCreate(Bundle saveInstance) {
...
Intent i = new Intent(HomeActivity.this, EstablishmentActivity.class);

                int idEstablishment = listEstablishment.get((int)id).getIdEstablishment();
                Log.d(TAG, "id = "+idEstablishment);
                i.putExtra("idEstablishment", idEstablishment);
                i.putExtra("GPS", wantGPS);
                Log.d(TAG, "wantGPS : " + wantGPS);
                //Start Intent
                startActivityForResult(i, WANTGPS);
...
}

...

 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

        Log.d(TAG, "go on actovoty rsult");


        if (requestCode == WANTGPS) {
            if (resultCode == Activity.RESULT_OK) {
                wantGPS = intent.getExtras().getBoolean("GPS");
                Log.d(TAG, "result : "+wantGPS);
            }
        }
}

第二个 Activity :

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.establishment_main);

        // Set up the action bar.
        final ActionBar actionBar = getActionBar();
        if (actionBar == null) {
            Log.d(TAG, "actionBar is null !");
        }

        //Set up the left icon to go back to Home Page
        actionBar.setDisplayHomeAsUpEnabled(true);

        Intent i = getIntent();
        wantGPS = i.getBooleanExtra("GPS", false);
        Log.d(TAG, "wantGPS 2 "+wantGPS);


    }

...

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
     if (id == android.R.id.home) {
            Intent result = new Intent(EstablishmentActivity.this, HomeActivity.class);
            result.putExtra("GPS", wantGPS);
            setResult(RESULT_OK, result);
            finish();
        }
        return super.onOptionsItemSelected(item);
    }

Answer 1

我有答案了!!如果你和我有同样的问题，这个答案应该对你有帮助:)

我已在 list 上定义了父 Activity 。所以android不会查看“OnOptionItemSelected”。

我删除了 list 上的父 Activity ，它有效!